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Dec 2022 DOI 10.14302/issn.2377-2549.jndc-22-4351
Molecular imaging is a new method in examining physiological studies in molecular dimensions. Among the various methods that have been introduced for this purpose, the magnetic resonance spectroscopy (MRS) method has made it possible to more accurately study the activities of the brain region as well as tumors in different parts of the body. MRS imaging is a type of non– invasive imaging technique that is used to study metabolic changes in the brain, stroke, seizure disorders, Alzheimer's disease, depression and also metabolic changes in other parts of the body such as muscles. In fact, since metabolic changes in the human body appear faster than anatomical and physiological changes, the use of this method can play an important role in the early detection and diagnosis of cancers, infections, metabolic changes and many other diseases. (Graphical Abstract) Graphical Abstract. CERN Large Hadron Collider (LHC) radiation source for magnetic resonance biospectroscopy in metabolic and molecular imaging and diagnosis of cancer.
Apr 2022 DOI 10.14302/issn.2379-7835.ijn-22-4155
The diabetic is most of the time admitted in emergency for acute complications. An inventory of these complications will guide promotional programs aimed at preventing the occurrence of these complications. This study was conducted with the aim of identifying acute complications and decompensation factors in diabetics admitted in emergency to the Souro Sanou University Hospital Center (CHUSS).It was an observational study, of descriptive transversal type, with prospective collection for 4 months. It concerned diabetics admitted to the medical and surgical emergency departments of the CHUSS. A total of 90 diabetics were included in the study. The average age was 58.81 ± 14.7 years. Type 2 diabetes accounted for 85.6% of cases. The diagnosis of diabetes was known in 74.4% of cases. The reasons for consultation were dominated by impaired conscientiousness and fever, 54.4% and 50% respectively. Metabolic complications were found in 44.4% of patients. They were dominated by hypoglycemia, which accounted for 55.3% of cases. Dietary error was the main decompensation factor in cases of hypoglycemia and was reported in 71.4% of cases. Metabolic complications are common in diabetics admitted in emergency at the CHUSS. Decompensation factors are mostly preventable.
Dec 2021 DOI 10.14302/issn.2641-4538.jphi-21-4036
A narrative review considers metabolic and neurochemical pathways implicated in passive exposure to alcohol consumers, discussing health effects and research needs.
Dec 2020 DOI 10.14302/issn.2474-3585.jpmc-20-3672
Background Prevalence of Metabolic syndrome is high among Asians including Indians, and is high among those having sedentary occupations. Teaching is one of the important occupations, which demands no strenuous physical activity. However, there is little information available about the prevalence of metabolic syndrome among teaching staff of engineering college. Hence, the present study was conducted to study its prevalence, certain risk factors and co-morbidities among teaching staff of engineering institutes. Methods Teachers from engineering colleges of Nagpur city were the study subjects. Data was collected by interview technique. Clinical examination and laboratory investigations like Fasting blood glucose, High Density Lipoproteins and Serum Triglycerides were done. National Cholesterol Evaluation Programme (NCEP) Adult Treatment Panel Three (ATPIII) criteria were used to study Metabolic syndrome. Blood pressure and anthropometric measurements like height, weight and waist circumference were obtained by standard methods. Results The prevalence of metabolic syndrome was found to be 20.5%. It was 25.32% in females and 19.31% in males. It was more common in subjects of higher age group, muslim religion, and among widows and separated. Alcohol consumption, smoking and sedentary life style was found to be significantly associated with presence of metabolic syndrome. Frozen shoulder, fungal infection and stroke were common co morbidities found among subjects having metabolic syndrome.
Jul 2020 DOI 10.14302/issn.2379-7835.ijn-20-3463
Background Evidence suggests that low birth weight (LBW) is associated with increased cardiovascular and metabolic risk in adulthood, including increased arterial stiffness, a marker of early vascular aging (EVA) assessable by pulse wave velocity (PWV), obesity and glucose homeostasis abnormalities. The present study aimed to explore the late impact of LBW on PWV and cardiometabolic phenotypes among young adult Cameroonians. Methods The study evaluated 120 subjects (mean age: 26 ± 5 years; 54% male sex) at the Cameroon Heart Institute, Douala, Cameroon, between January and June 2018. Birth weight (BW) and gestational age, sociodemographic, anthropometrics and fasting capillary blood glucose were recorded in all participants. Blood pressure (BP) and PWV were measured using an automatic oscillometric device (Mobil-O-Graph®). Multiple-adjusted linear regression was used to determine predictive factors for PWV. For assessment of potential impact of BW on EVA, PWV was adjusted for age, sex, body mass index (BMI) and mean arterial pressure (MAP). Results 28 participants (23.3%) of the study sample had LBW (<3000g). There was no gender difference between LBW or normal birth weight patients (NBW; controls). Age- and MAP-adjusted PWV (aPWV) were higher in women with LBW compared to NBW (5.6 m/s and 5.3 m/s respectively, P = 0.038). In men, aPWV was similar in LBW and NBW. In this study population, aPWV was higher (on average +15 cm/s) in LBW than in controls, although the difference was not statistically significant (P=0.083). Multivariate regression analysis showed age, male sex, BMI and MAP were independent determinants of PWV, but not LBW. Compared to NBW controls, the prevalence of overweight/obesity, impaired glucose homeostasis and diabetes was higher in LBW: 42.9% vs 37%; 10.7% vs 3.3%, and 3.6 % vs 1.1%, respectively. Moreover, compared with controls, LBW individuals who were overweight/obese in adulthood had a much higher mean fasting capillary glucose (1.54 ±0.17 g/l vs 0.87 ±0.11 g/l in NBW, p=0.003). Conclusion This study suggests that although LBW is associated with increased aortic stiffness in young adulthood, mainly in women, the association was predominantly driven by aging, MAP, BMI and male sex. In adulthood, LBW subjects exhibited higher obesity indices and altered glucose homeostasis.
Sep 2019 DOI 10.14302/issn.2572-5424.jgm-19-3024
Background The objective of this review is to unify the various genetic defects along with elaborating metabolic pathways in Familial Combined Hyperlipidemia(FCHL) and also to differentiate the phenotype of FCHL from metabolic syndrome. Methods PubMed and Cochrane’s library was searched for keyword “Familial combined hyperlipidemia” and latter with “Familial combined hyperlipidemia genes” to finally shortlist 23 articles. Further search with key words “molecular pathogenesis of familial combined hyperlipidemia” and “metabolic syndrome and familial combined hyperlipidemia” was carried out for finding molecular defects in FCHL, non-molecular findings distinguishing FCHL from metabolic syndrome and overlapping features between FCHL and metabolic syndrome. Results Major culprit regions identified included Chromosome-1q21-q24(USF1 and FOXA2) , Ch-11q (APOA5), Ch-16q24, Ch-20q12-q13.1, Ch.4q32.3 (rs6829588), and Ch-19q13.32 containing PVRL-2 gene (Also known as Nectin-2). The genetic and metabolic pathways linked to FCHL may involve: 1-Defective clearance of Apo-B containing lipoproteins, 2-Overproduction of Apo-B containing lipoprotein i.e., VLDL and 3-Adipose tissue dysfunction. FCHL phenotype showed close resemblance with metabolic syndrome clinical and biochemical features with slight differences. Conclusion The reviewed data suggested that FCHL phenotype is the resultant end outcome from multiple molecular defects and thus underlying genetic defect identification in the index case is important for personalized medicine and incoming gene therapy. Further research is warranted to explore specific genetic defects.
Feb 2019
Objectives This study was designed to assess the demographic characteristics, prevalence of metabolic syndrome (MetSy) among patients with schizophrenia in Saudi Arabia. Methods This is a disease-oriented and observational study. Schizophrenia was defined by DSM-IV criteria. MetSy were assessed based on the international criteria (NCEP-ATP III and AHA/NHLB). Results 90% of the participants are without a university degree and 56.4% are single. Chronic and acute cases of schizophrenia were 95% and 5%, respectively. The treatment of schizophrenia was combination therapy and monotherapy with percentages of 56% and 44%, respectively. Systolic and diastolic blood pressures were 121.92±11.07 mmHg and 77.29±0.45 mmHg, respectively. Surprisingly, all patients have abnormal HDL. A mean waist circumference of 90.23±14.88 cm for men, and 93.38±15.28 cm for women. The analysis of 101 patients showed a prevalence of the MetSy is 15.8%. Chi-square test of independence showed lack of independency of MetSy on type of therapy. Modeling of MetSy and risk factors was also conducted. Conclusion The metabolic syndrome is greatly established among schizophrenic patients. It signifies a vital hazard for metabolic and cardiovascular ailments. Evaluation of the incidence and examining of the related threats of the metabolic syndrome should be an element of the clinical managing of patients cured with antipsychotics.
Jan 2018
Breast cancer is the most common cancer in women worldwide. In the United States, is the second leading cause of cancer deaths in women. In Puerto Rico between 2008 and 2012, breast cancer was the most diagnosed type of cancer and the leading cause of cancer deaths among women. This is a case of 54 years old female diagnosed with stage IV right breast carcinoma. The patient complaints were weakness and a right breast ulcer. She started a metabolic correction therapy, which consisted of high intravenous vitamin C infusions, a nutritional supplementation plan, and Paleolithic diet. During treatment, both Glycohemoglobin and Carcinoembryonic Antigen levels decreased significantly, the right breast ulcer decreased in size, and the patient’s quality of life improved. Over the years, vitamin C studies have demonstrated a cytotoxic action against malignant cells. Based on the results from this case, we advocate continue studying possible adjuvant treatments for cancer patients, involving IV infusions of vitamin C and metabolic correction plans.
Jan 2018 DOI 10.14302/issn.2576-6694.jbbs-17-1850
Obesity has become a serious health issue worldwide. There is much evidence that obesity among adolescents contributed to worsening blood biochemical profile that leads to development of many non-communicable diseases. Therefore, the aim of this study was to evaluate the predictive value of some central obesity anthropometric indicators to metabolic risk factors in the Syrian male adolescents. A cross-sectional study of a randomly selected sample of 2064 apparently healthy Syrian males’ adolescents from Damascus city, Syria, aged 18 to 19 years was performed. Waist circumference (WC) and hip circumference (HC) were measured, and waist-to-hip ratio (WHpR) and waist-to-height ratio (WHtR) were calculated. Blood pressure (BP) was also measured. Serum fasting blood sugar (FBS), triglyceride (TG), low-density lipoprotein cholesterol(LDL-C), total cholesterol (Chol) were determined. The metabolic risk factors components were defined according to the national criterion. A receiver operating characteristics (ROC) curves were drawn to determine appropriate cut-off points of the WC, HC, WHpR and WHtR for defining the performance of these measurements as predictors of metabolic risk factors. The obtained data showed that BP and overall concentrations of TG, Chol and TG/HDL were significantly (p<0.05) increased with increasing WC, HC, WHpR and WHtR values. Based on ROC calculation for the measured anthropometric indicators and some metabolic syndrome (MetS) risk factors, the best WC HC, WHpR, WHtR cut-offs values were ranged between 73.15 - 79.90 cm, 93.75 - 101.10 cm, 0.80 - 0.81, and 0.43 and 0.47, respectively. These cut-off values were lower than the values recommended by the WHO. In conclusion: A significant association between the studied anthropometric indicators and the MetS components has been demonstrated. The best cut-offs of these indicators were defined. These cut-off values were lower than the values recommended by the WHO. Our results indicating that WC, WHpR and WHtR could be better predictors of MetS risk factors in Syrian adolescents.
Apr 2017 DOI 10.14302/issn.2572-5424.jgm-17-1482
Canavan disease (CD) is a globally occurring but rare human spongiform leukodystrophy that is associated with inborn errors affecting the activity of aspartoacylase (ASPA), an enzyme highly expressed in oligodendrocytes that hydrolyzes N-acetylaspartate (NAA). Lack of ASPA activity is associated with the inability of oligodendrocytes to build or maintain axon-enveloping myelin sheaths. The primary source of NAA in brain is neurons, cells that synthesize but cannot catabolize it. Neurons also synthesize N-acetylaspartylglutamate (NAAG) from NAA and glutamate but cannot catabolize this substance as well. For their metabolism, these substances are released to extracellular fluid and are metabolized by oligodendrocyte ASPA and astrocyte NAAG peptidase respectively. A hypothesis developed suggested that the cause of the leukodystrophy component in CD was due to release of NAAG by neurons at white matter nodes of Ranvier, its catabolism by astrocytes forming NAA and increased osmotic-hydrostatic pressure as a result of its buildup at these nodes due to the lack of ASPA activity. In this communication, we provide evidence supporting this hypothesis and comment on the cause and possible cure for human CD.
Dec 2016 DOI 10.14302/issn.2329-9487.jhc-16-1244
Objective: The prospective intervention study was conducted to investigate the effects of kale powder (Kale juice mixed with water or milk) consumption on metabolic syndrome in subjects with potential metabolic syndrome. Method: In Arita-cho, 149 male and female subjects with potential metabolic syndrome were instructed to consume kale powder for 8 weeks, and its effects on blood pressure, HbA1c, BMI, abdominal circumference, and blood triglycerides, LDL-C, HDL-C, and fasting blood sugar levels were assessed. Additionally, the safety of kale powder was examined. Results: After the 8-week long intake of kale powder, a significant decrease was observed in laboratory and home test-based blood pressure, abdominal circumference, and levels of LDL-C, HDL-C, and fasting blood sugar. Additionally, a hypotensive effect was observed on conducting stratified analysis, in which patients with blood pressure-related diseases were excluded. Furthermore, no safety concerns were identified regarding kale powder. Conclusion: Kale powder had a beneficial effect to maintain optimal blood pressure, blood sugar, and abdominal circumference in subjects with potential metabolic syndrome. Additionally, a hypotensive effect was observed within the normal range in subjects without blood pressure-related diseases.
Jul 2016 DOI 10.14302/issn.2474-9273.jbtm-15-817
Objective: To examine whether having metabolic syndrome (MS) among seniors is associated with using anti-depression medication. Methods: A total of 1366 (617 men and 749 women) individuals aged 60+ years from the NHANES 2007/08 survey who had no reported heart disease and/or cancers but had information on prescribed medications in previous month were included in this analysis. All subjects were categorized into three prescribed drug use status, ie, none (group 1); no anti-depressants (group 2); and with anti-depressants (group 3). MS was defined with the criteria of the ATP III. Results: Over 80% of individuals reported taking prescribed medications with 6% of men and 16% of women respectively having used anti-depressants. About 36% of men and 40% of women respectively were considered to have MS. Results from multiple logistic regression analyses indicated that in comparing to group 1, the odds ratios (95% CI) of MS was 2.73 (1.96, 3.82) for group2 and 2.25 (1.07, 4.69) for group 3, respectively. Both group 2 and 3 had a similar metabolic risk profile, in comparing to group 1, they had higher odds of having diabetes and high level of blood pressures. Conclusion: Seniors with medications are more likely to be with MS, diabetes, and high level blood pressures. However, the observed the cardio-metabolic risk association seems similar between seniors using anti-depressant drugs and using other prescribed medications.
Jun 2016 DOI 10.14302/issn.2329-9487.jhc-15-905
Backgroud: Metabolic acidosis, a common condition particularly in end stage renal disease patients, results in malnutrition and inflammation. In this study, we focused on the importance of metabolic acidosis on manifestations of cardiovascular disease in patients on peritoneal dialysis. Methods: We studied 20 patients on continuous ambulatory peritoneal dialysis (CAPD), 15 males and 5 females, on mean age 61.6 ±11.3 years old. Metabolic acidosis was determined by serum bicarbonate concentrations less than 22mmol/L, which were measured in gas machine. Dialysis adequacy was defined by total Kt/V/week for urea including peritoneal Kt/V for urea and residual GFR (ml/min/1.73m2). High sensitivity C-reactive protein (hsCRP) was measured using enzyme linked immunoabsorbed assay (ΕLISA). The concentrations of intact-parathormone (i-PTH) and beta2-microglobulin (beta2M) were measured by radioimmunoassays. Arterial stiffness was measured as carotid-femoral pulse wave velocity (c-f PWV) and augmentation index (AIx). We built a Cox regression analysis to predict coronary artery disease (CAD), congestive heart failure (CHF) and peripheral vascular disease (PVD). Results: Serum bicarbonate levels were inversely associated to beta2M, i-PTH and AIx (r=-0.451, p=0.04, r=-0.477, p=0.03 and r=-0.569, p=0.009 respectively). Cox- regression analysis revealed significant association of serum bicarbonate levels and PVD having as confounders traditional and specific for these patients risk factors. Conclusion: Metabolic acidosis may be an independent risk factor for arterial stiffening and peripheral vascular disease manifestation in patients on peritoneal dialysis.
Mar 2016 DOI 10.14302/issn.2572-5424.jgm-16-1353
The possible interrelation of ethanol and the membrane protein molecules such as TRP ion channels in the whole living organism has not been studied. In the present research we study the influence of ethanol (50%) and agonist of TRPM8 ion channel L-menthol (1% in 50% ethanol) application to abdominal skin on the thermoregulatory response to cooling in rats. We used two types of cooling with the different rates of skin temperature decrease - 0.1 °C/sec for rapid and 0.005°C/s for slow cooling. It was shown, that the effects of ethanol and activation of the cold-sensitive TRPM8 ion channel are mainly directed at different components of thermoregulatory metabolic response to cold. Menthol, as an agonist of the TRPM8 ion channel, besides the constrictor vascular response stimulates predominantly the emergency first phase of metabolic response which appears only at rapid cooling without any effect on the second phase of metabolic response to cooling. Ethanol inhibits the most powerful second phase of metabolic response to cold which is manifested at decreased deep body temperature and is associated with the development of not only non-shivering but also shivering thermogenesis. Effect of ethanol is accompanied by the acceleration of the deep body temperature fall. Ethanol does not prevent the effect of menthol on thermoregulatory blood vessel and emergency phase of metabolic response, and the activation of the cold-sensitive TRPM8 ion channel by menthol has no obvious influence on the effects of ethanol – inhibition being the most powerful thermogenic component of the metabolic response to cold.
Jan 2015 DOI 10.14302/issn.2379-7835.ijn-14-536
The risk levels of chronic diseases are increasing among Asian migrants in Western countries compared to their origin-country counterparts. This study evaluates the impact of an 8-week nutrition and lifestyle intervention on cardio-metabolic risk factors in Korean migrants living in Melbourne, Australia. Thirty participants aged 32-62 years completed the program. Self-reported food intake and physical activity, anthropometric and blood pressure measurements, and biomarkers of cardio-metabolic risk were assessed. An initial training session and four consequent nutrition advice sessions were provided for all participants. There was a significant reduction in the waist and hip circumferences. Positive changes were also observed in plasma lipid profiles, calcium intake and frequency of physical activities. These findings demonstrate that a culturally appropriate nutrition and lifestyle intervention can be successfully delivered to reduce the cardio-metabolic risk factors and improve the health and wellbeing of Korean adult migrants.
Oct 2014 DOI 10.14302/issn.2471-2140.jaa-14-423
There is increasing evidence of the prevalence manifestations of metabolic syndrome worldwide. Metabolic syndrome is a cluster of abnormalities characterized by hypertension, central obesity, insulin resistance, endothelial dysfunction, dyslipidemia and oxidative stress. All these alterations predispose individuals to type 2 diabetes and cardiovascular disease that are major contributing factors to earlier mortality among people. The investigation of food nutrients that could reverse the features of metabolic syndrome is an important aspect for dietary-based therapies that may ameliorate the burden of the disorder. Antioxidant micronutrients are of great interest due to the recent described association between obesity, cardiovascular alterations and oxidative stress. These antioxidant nutrients are also being considered in the management of metabolic syndrome due to their potential benefits on hypertension, insulin resistance and hypertriglyceridemia since growing evidence has emerged that point to a causal link between oxidative stress and metabolic syndrome. Thus, dietary antioxidant supplements could have favourable effect on the attenuation and prevention of the manifestations of metabolic syndrome traits. Therefore, the present review focuses on the importance of antioxidant micronutrients in the treatment and management of metabolic syndrome.
Apr 2026 DOI 10.14302/issn.2574-450X.jom-26-6138
Indices, based on data such as height and weight in general and in particularly the body mass index (BMI), are often used to assess overweight. However, there is limited capacity to differentiate the amount of fat mass between individuals. This review refers to an anthropometric model called Dahlmann-Body-Analysis (DBA), which uses simple anthropometric parameters to define a Reference Weight (Ref-Wt). It is based on hand circumference as a proxy for the skeletal frame and, in addition, the circumference of the abdomen as a proxy for central obesity. Processed through a network of algorithms, the DBA model enabled to differentiate the Difference Weight – that means the difference between the Actual Weight and the Reference Weight – into fat mass and skeletal muscle mass. The DBA-model resembles the 2-component model of Albert R. Behnke, which he considered as a living functional construct including essential fat. The DBA-model matches with Behnke`s 2-component model insofar, as the essential fat is replaced by a physiological amount of fat tissue. The review summarizes studies to compare DBA-derived data with Metropolitan Life Insurance tables, evaluates DBA-derived fat tissue mass with bioelectrical impedance analysis (BIA) derived results and analyses the meaning of the DBA model in clinical settings to uncover the underlying mechanisms of metabolic syndrome (MetS) pathogenesis with increasing amounts of fat mass. The model offers the opportunity to calculate changes in fat or muscle tissue in an absolute (kg) or relative (%) amount on individuals. The data suggest that the DBA-model has satisfactory prediction qualities for use as a practical tool in public health care.
Feb 2026 DOI 10.14302/issn.2372-6601.jhor-25-5944
Background Oxaliplatin, a widely used chemotherapeutic agent, is associated with hematologic toxicities such as anemia, leukopenia, and thrombocytopenia. Despite their clinical relevance, the molecular mechanisms underlying lineage-specific bone marrow suppression remain poorly understood. Methods We administered oxaliplatin to mice over eight weeks and performed RNA-sequencing (RNA integrity >8) on bone marrow alongside peripheral blood analysis and cytokine profiling. Transcriptomic data were analyzed to identify differentially expressed genes (DEGs) and enriched pathways. For that, we applied a thematic Gene Ontology (thematicGO) enrichment method that groups GO terms into biologically meaningful categories, such as hematopoietic lineage disruption, cell cycle arrest, and cytokine signaling. Results Oxaliplatin induced broad transcriptional suppression of erythropoiesis and lymphopoiesis, with 3,691 DEGs identified (FDR<0.05, |FC|>1.5). Upregulation of Cdkn1a and downregulation of E2f2 suggest G1/S cell cycle arrest, correlating with repression of key erythroid maturation genes (e.g., Spta1, Slc4a1, Alas2) and hemoglobin subunits (Hba-a1/2, Hbb-bs/t). Despite a ~3000-fold increase in renal Epo expression, bone marrow Epor was reduced, indicating erythropoietin resistance. B and T cell markers were also significantly downregulated, signifying a collapse in adaptive immunity. Notably, neutrophil populations were largely spared. Cytokine analysis in plasma revealed a pro-inflammatory shift with elevated TNF-α and reduced TGF-β, potentially exacerbating hematopoietic dysfunction. Conclusions Oxaliplatin induces a lineage-dependent suppression of hematopoiesis, driven by coordinated cell cycle arrest, metabolic stress, and disrupted cytokine signaling. RNA-seq analysis enabled integration of transcriptomic findings into coherent biological themes. These findings provide mechanistic insights into oxaliplatin’s hematologic toxicity linking bone marrow failure (potentially reversible) via interconnected inflammatory and metabolic pathways and may inform therapeutic strategies to minimize or restore myelosuppression in cancer patients.
Feb 2026 DOI 10.14302/issn.2689-4602.jes-25-5926
The impact of ionizing radiation on genetic change is well established, yet the extent to which naturally occurring radiation fields have influenced evolutionary trajectories remains incompletely understood. This study examined correlations between microbial evolution and the radiation and geochemical environments associated with natural fission reactors, with emphasis on the Oklo–Bangombé system in present-day Gabon, Africa. The current paper compares plausible doserate regimes adjacent to reactor zones with published observations of radiationinduced phenotypes, geneexpression changes, and repair strategies in model organisms and complex biotas. This study further considers indirect mechanisms (e.g., water radiolysis, redox restructuring, tracemetal mobilization) by which natural reactors could have modulated ecological selection pressures over long timescales. The synthesis supports the plausibility of three interacting pathways: (i) increased mutation supply under low, chronic dose rates; (ii) selection in oxidantrich, redoxstratified niches; and (iii) metabolic subsidies (e.g., H₂) from radiolysis that support chemotrophic guilds. Although temporal–spatial associations exist between reactor activity and biological innovations preserved in Paleoproterozoic strata of Gabon, current evidence remains correlational rather than demonstrably causal. The study further outlines testable predictions and experimental designs capable of discriminating among these mechanisms.
Dec 2025
The journey from personalized medicine to customized nutrition represents a significant paradigm shift in healthcare, emphasizing the holistic method for a person's or girl's well-being. in this transition, the know how of the unique genetic makeup , metabolic profile, and way of lifestyles elements of everybody will become paramount. customized medicinal drug has long centered on tailoring scientific remedies to the genetic and physiological traits of sufferers, optimizing efficacy, and minimizing detrimental effects. Now, custom-designed nutrients increase this idea further, recognizing that weight reduction plays an essential function in health and disease prevention. Key to this evolution is the mixing of advanced technology together with genomics, metabolomics, and microbiomics, allowing the suitable identification of dietary styles and nutritional requirements tailored to a person's particular desires. This summary explores the trajectory of this adventure, highlighting the pivotal characteristic of interdisciplinary collaboration among healthcare professionals, nutritionists, and researchers. With the useful resource of leveraging slicing facet generation and records-pushed strategies, personalized vitamins keep the promise of revolutionizing knowledge we method nutritional interventions, moving some distance from generalized guidelines towards targeted strategies tailored to all people's precise organic make up and way of life. expertise, traumatic conditions which include accessibility to this technology, ethical issues, and the desire for sturdy, proof-primarily based practices remain. In conclusion, the shift from customized treatments to personalized nutrient expertise is a transformative generation in healthcare, empowering people to take proactive management of their health through tailor made nutrition interventions. This summary underscores the importance of endured studies and collaboration in figuring out the entire functionality of personalized vitamins in selling health and well-being.
Dec 2025 DOI 10.14302/issn.2329-9487.jhc-25-5778
Calcium channel blockers (CCBs) are widely used for the treatment of arterial hypertension, but they differ in terms of pharmacology, tolerability, and pleiotropic actions. Lercanidipine, a highly lipophilic third generation dihydropyridine, reduces blood pressure (BP) effectively as monotherapy and in combination without inferiority to other major antihypertensive classes. We systematically searched PubMed and the Cochrane Library (last update: September 1, 2025) and screened reference lists for additional studies. Evidence from dose finding trials, randomized controlled studies, large observational cohorts, and meta analyses shows clinically meaningful reductions in office, home, and ambulatory BP with lercanidipine, including in patients with diabetes, obesity, chronic kidney disease, or high cardiovascular (CV) risk. Fixed- dose combinations with renin angiotensin system blockers (e.g., enalapril) provide greater BP reductions than monotherapy and are associated with favorable neurometabolic profiles. Beyond BP control, lercanidipine improves central hemodynamics and arterial stiffness, favors endothelial biology, and contributes to left ventricular hypertrophy regression. Across comparative trials, lercanidipine is generally better tolerated than older dihydropyridines. Presents lower rates of vasodilatory adverse events, less sympathetic activation, while discontinuations due to adverse events are uncommon. Overall, lercanidipine particularly within single pill combinations offers effective, durable BP lowering across diverse patient profiles with a favorable safety and tolerability profile and pleiotropic benefits that extend beyond BP reduction. Figure 1. Graphical Abstract: Pleiotropic effects of Lercanidipine
Nov 2025
Frequency neurofeedback (FNF) is a biofeedback method that targets frequencies between 1 and 50 Hz. The efficacy of FNF with autism has been labeled ‘probably efficacious’ in literature reviews in the last decade, despite new research pointing towards a higher standard. The aim of this review was to analyze key features of these studies, with a goal of determining the efficacy standard of FNF on autism and establishing a research direction. Electronic databases and literature reviews were used to collect a total of ten randomized and/or matched controlled trials. FNF reaches a Level 4 efficacy standard, with an impact on a broad range of factors including core autistic traits, social communication, emotional regulation, cognitive flexibility, executive function, behaviors of concern, attention, metabolic or thermal activity, and EEG e.g. decreased absolute power, mu rhythm, coherence and hyperconnectivity. Current evidence generalizes to male children, up to 18 years, with a low-average or higher intellectual functioning, with autism as the only diagnosis. A meta-analysis suggests a large superior effect when compared to wait list controls. Current research does not meet the higher efficacy standards outlined by Arns et al. (2020). Small samples plague most studies, and the maintenance of improvements post-training are yet to be assessed adequately. Eight recommendations are made.
Oct 2025 DOI 10.14302/issn.3070-3360.ijco-25-5740
Significance This case report describes the alternative management of hyperuricemia through acupuncture using the Luo Yuan technique. Case presentation A 53-year-old Mexican man was diagnosed with secondary hyperuricemia. The patient began to experience arthralgia in the metatarsophalangeal joint of the first toe on his left foot after consuming a high amount of purine-rich foods, with a 10-year history. The symptoms were sporadically controlled with the use of colchicine and indarzone. In a six-element blood chemistry test, serum uric acid was 8.7 mg/dL before acupuncture treatment and 8.3 mg/dL at the end of treatment, without applying dietary restrictions on purine consumption. Conclusions and relevance This report demonstrates the potential efficacy of acupuncture at the Luo and Yuan points of the Spleen and Stomach meridians in reducing elevated blood uric acid levels. This suggests its potential as an alternative treatment for patients with hyperuricemia and other metabolic disorders.
Aug 2025 DOI 10.14302/issn.3070-1937.ijbt-25-5408
Background and Objectives Platelets are small, anucleate blood cells produced in the bone marrow, primarily involved in blood coagulation. Platelet concentrate is a vital blood product with extensive applications. However, its short lifespan and limited donor availability pose global challenges. This study aimed to follow the trend of platelets 5 during days of storage. Material and Methods We studied on 40 platelet bags and analyzed glucose levels, lactate dehydrogenase (LDH), bacterial culture, and apoptosis using flow cytometry with Annexin V-PI over three consecutive days (first, third, and fifth) post-blood collection. Data were analyzed using SPSS. Results No significant correlations were found between age, blood group, or gender and the variables studied. No bacterial growth was detected. Glucose levels decreased significantly from day 1 (382 mg/dl) to day 5 (298 mg/dl). The average platelet apoptosis increased significantly from 3.65% on day 1 to 9.06% on day 5. Significant correlations were observed between glucose levels and apoptosis on days 3 (p<0.05) and 5 (p<0.01). No correlation found between LDH and apoptosis or necrosis, although a significant relationship between necrosis and apoptosis was noted on day 5 (p=0.003). Conclusion These findings suggest that while demographic factors do not influence the studied variables, the significant decrease in glucose levels correlates with increased platelet apoptosis over time, highlighting potential metabolic interactions that warrant further investigation. Highlights 1. The study revealed subtle variations in metabolic markers related to donor demographics, particularly gender and age. Understanding these differences can inform targeted donor selection strategies to optimize platelet quality. 2. A significant negative correlation was found between glucose levels and apoptosis rates, indicating that as glucose decreases, platelet viability declines. This relationship highlights the need for careful monitoring of glucose levels during storage to maintain platelet function. 3. Fluctuations in lactate dehydrogenase (LDH) levels were correlated with increasing rates of apoptosis, suggesting that LDH could serve as a valuable biomarker for assessing platelet quality throughout the storage period. This finding could lead to improved storage protocols and enhanced transfusion safety.
Jul 2024
Vitamin D deficiency is known to affect bone healing 1. In this case report, the potential link between vitamin D, calcium, and phosphorus deficiency and periapical lesions is explored, offering fresh insights into the complex relationship between systemic health and dental pathology. This pathology is caused by a mutation in the PHEX gene on chromosome X, which encodes a protein necessary for vitamin D synthesis and phosphate reabsorption, which are essential for the mineralization of bone and teeth 23. A 25-year-old man with rickets and vitamin D deficiency presented to our clinic with recurrent abscesses in multiple teeth. Radiographic imaging revealed periapical lesions on multiple teeth with advanced endo-perio lesions on teeth 26 and 16, and a negative cold test on all his teeth. Despite successful endodontic treatment, the patient’s compromised metabolic healing raised concerns about the prognosis. This case report highlights the intricate interplay between vitamin and mineral deficiencies and dental health, emphasizing the need for cautious management and long-term follow-up.
Jun 2024 DOI 10.14302/issn.2374-9431.jbd-24-5077
Dengue is a global arbovirus disease primarily carried by Aedes aegypti and Aedes albopictus mosquitoes. It has four serotypes (DENV1, DENV2, DENV3, and DENV4) and is classified into distinct genotypes. The epidemic is complicated by immunological interactions and viral lineage turnover. Neurological problems are commonly associated with DENV2 and DENV3, with DENV2 displaying the most severe symptoms. Direct viral invasion, host-mediated immune system reactions, or host-mediated metabolic alterations can all result in dengue-related neurological issues. The three dengue vaccinations and the significance of meta-analyses for genetic data will also be covered. Finally, establish a connection with the microRNAs associated with dengue fever, creating new opportunities for the creation of dengue treatment regimens involving microRNAs.
Oct 2023 DOI 10.14302/issn.2639-3166.jar-21-4033
Root is has great role for plant adaptation and productivity of the agricultural crops as well as other plants by exploiting the soil resource thus, important for plant growth and development or main growth factors. Root system architecture is made up of structural features which exhibits great role in response to environmental stress, and critical to plant growth and development with sufficient root growth. Root system architecture has a central role in crop plants’ response to abiotic (soil microorganisms) and abiotic stresses like water stress, mechanical impedance. Root morphology can be affected by nutrient availability, osmotic stress, salinity, and light. Phenotyping root is one of the drought management tools as roots are more prone to drought conditions and play a significant role in the plant’s life by extracting soil resources from deeper soil layers to carry on several metabolic functions in the plant’s body and its phenotyping helps to understand different root traits. Understanding interactions between roots and their surrounding soil environment is important to increase root growth, which can be improved through root phenotyping. In addition, knowing of the development and architecture of roots, as well its plasticity, holds thus great role for stabilizing the productivity under suboptimal conditions in the root environment
Sep 2023 DOI 10.14302/issn.2576-9383.jhhr-23-4713
A global increase in incidence of chronic liver disease (CLD) indicated the necessity of dietary and lifestyle modification. Low glycemic index (GI) diet was reported to have a significant role in controlling diabetes caused by liver dysfunction. The International Standards Organisation (ISO) has standardized the determination of GI of a food in healthy individuals. This study aimed to estimate GI value of a high protein, energy dense liver nutritional supplement. This cross-over randomized controlled study randomly allotted 15 participants to consume either reference food 27.5 gm glucose (glucose monohydrate) or 77 gm nutritional supplement (equivalent to 25 gm of available carbohydrates); switching to another arm was done after 3 days wash-out period. After overnight fast, blood samples were collected at 15, 30, 45 and 60 minutes post-consumption of s upplement or reference food. The GI was calculated from the incremental area under the blood glucose response elicited by the nutritional supplement as a percentage of the response after consumption of 27.5 gm of glucose (glucose monohydrate) by the same participant using a standard formula. Mean GI of the nutritional supplementwas estimated as 11.4 ± 2.4.With the consumption of this nutritional supplement, the blood glucose levels were reduced at all postprandial time points, compared to the reference food. The liver nutritional supplement tested has a low GI, and comparatively slower and more sustained blood glucose response. Therefore, it can be used in patients with CLD to prevent CLD-associated metabolic complications and improve health outcomes and quality of life.
Jan 2022 DOI 10.14302/issn.2372-6601.jhor-22-4061
Background Human malignant cell models which reflect the structural and physiological complexity of tumor tissue are of great importance for preclinical research in oncology. Spheroids/tumoroids derived from solid tumors are of great interest as cellular models mimicking the first vascular-free growth phase of a tumor node. The fact of the identity between artificially created tumor multicellular aggregates and the real tumor tissue, however, needs to be specified, described and validated in order to see how closely the spheroids are biologically similar to the malignized tissues in vivo compared to the monolayer cell cultures traditionally used. We present here a comparison study of the characteristics of solid tumor cells of different histogenesis (melanomas, soft tissue sarcomas and bone sarcomas, epithelial tumors) cultured in two dimensions (monolayer culture) and three dimensional space (spheroid), namely: spatial organization, multiplication, metabolic activity. Patients and Methods For the creation of 2 D and 3D cell models the cells isolated from the patient's solid tumor fragments obtained intraoperatively were used. 15 samples of skin melanoma, 20 samples of soft tissue and osteogenic sarcomas (STBS), and 9 samples of epithelial tumors (ET). The tumor cells were all cultivated for at least 10 passages. We used phase contrast, confocal microscopy, and immunohistochemistry to investigate spheroids and monolayer cultures. The supernatants of tumor cells grown in 2D and 3D cultures were studied using ELISA and multiplex analysis for the production of a spectrum of chemokines and cytokines supporting the immunosuppression, invasion and metastasis processes. Results Tumor specimens received were predominantly of metastatic origin (75%). In 100% of cases 2D cultures were received, in 88.6% of cases (39 out of 44) we succeeded in obtaining spheroids. There was no direct correlation between the efficiency of tumoroid formation and the tumor's histogenetic origin and the stage of the cancer process (primary tumor, recurrence, metastasis). The median size of spheroids by 4-5 days of cultivation with a starting concentration of 10000 cells per well was 657.14 μm for melanoma (min 400 - max 1000 μm), 571.42 μm (min 400 - max 700 μm), 507.14 μm (min 300 - max 600 μm) for soft tissue sarcomas, 650.0 μm (min 400 - max 900 μm) for osteogenic sarcomas. Immunochemical analysis of Ki-67, GLUT1, and Ecadherin markers was carried out for tumor tissue samples, single-layer tumor cultures, and tumoroids of every patient. The distribution of the stained groups in the spheroids was distinct from the monolayer cultures and more in accordance with the distribution of such in the tissue tumor, the number of Ki-67+ cells was increasing in the spheroids. We detected no dependence of Ki-67+ and GLUT1+ cell localization grade on spheroid size. We identified E-cadherin in tumor tissue and tumoroids of breast carcinoma and one melanoma culture. Monolayer cultures did not express it. The increase in secretory cell activity of the solid tumor cells from 2D to 3D system was observed when CCL2, CCL3, CXCL1, CXCL16, MIF, IL10, MICA (p<0.01) were investigated. Conclusion The presence of patient-specific cells of solid tumors in a 3D environment causes activation of the proliferative and metabolic processes as compared to monolayer cultures, which makes these models approximate the real world clinical picture. The production of chemokines that can attract to the tumor various types of immune system cells, to include their immature versions, as well as production of cytokines and Immunosuppression factors that, when present in the tumor microenvironment in the high concentrations, contribute to the formation of immune cells having suppressive capacities occurs in the 3D cell system. Three-dimensional model of the initial tumor nodule formation stage thus demonstrates the forming process of tumor cells favorable for them microenvironment. Construction of three-dimensional models - spheroids of tumor cells of differing histogenesis demands individual approach and more thorough investigation.
Apr 2021 DOI 10.14302/issn.2689-2855.jan-21-3771
Ascorbic acid is a water-soluble vitamin (Vitamin C) essential for both the plants and animals for the metabolic process. In this study, the liquid chromatography-mass spectrometry (LC-MS) analytical technique was used to characterize the structural properties and isotopic abundance ratio to evaluate the effect of the Trivedi Effect®-Consciousness Energy Healing Treatment on L-ascorbic acid compared to the control sample. The ascorbic acid sample was divided into control and treated parts. Only the treated part received the Trivedi Effect®-Consciousness Energy Healing Treatment remotely by a well-known Biofield Energy Healer, Mahendra Kumar Trivedi. The control and treated samples showed a chromatographic peak at retention time (Rt) 1.8 minutes exhibited the deprotonated molecular ion peak at m/z 175 (M-H)- (calculated for C6H7O6-, 175.02) in the mass spectra. The peak area of the treated sample (12817614.01) was significantly increased by 8.81% compared to the control sample (11779918.9). The LC-MS based isotopic abundance ratio of PM+1/PM (2H/1H or 13C/12C or 17O/16O) in the treated ascorbic acid was significantly increased by 23.22% compared with the control sample. Thus,13C, 2H, and17O contributions from (C6H7O6)- to m/z 176 in the treated ascorbic acid were significantly increased compared with the control sample. The increased isotopic composition of the treated ascorbic acid might have altered the neutron to proton ratio in the nucleus. The changes in isotopic abundance could be due to changes in nuclei possibly through the interference of neutrino particles via the Trivedi Effect®-Consciousness Energy Healing Treatment. The increased isotopic abundance ratio and peak area of the treated ascorbic acid may increase the intra-atomic bond strength and its stability. This novel ascorbic acid after the Trivedi Effect®-Consciousness Energy Healing Treatment would be very useful to design more efficacious pharmaceutical formulations against scurvy, obesity, cardiovascular diseases, hypertension, rheumatoid arthritis, Alzheimer's disease, cancer, etc.
Jan 2021 DOI 10.14302/issn.2470-5020.jnrt-20-3619
Circular RNAs (circRNAs) are recently rediscovered eukaryotic molecules that form a covalently closed-loop structure through a special type of alternative splicing known as backsplicing. These closed-loop structures are highly stable and resistant to RNase degradation, and are thereby expressed in a tissue-specific and evolutionarily conserved manner, which regulates the expression of proteins and mRNAs that are involved in the metabolic pathways associated with specific diseases. Recent evidence of the ubiquitous expression of circRNAs in cancer under physiological and pathophysiological conditions indicates that dysregulation of gene and protein expression might promote tumorigenesis and carcinogenesis, and that circRNAs have important clinical significance in the diagnosis, treatment, and prognosis of cancer and other diseases. This review provides a brief introduction to the characteristics, formation, and function of circRNAs. Some of circRNAs act as microRNA (miRNA) sponges to regulate the level of transcriptional splicing and the expression of parental genes through the circRNA-miRNA-mRNA regulation axis. We summarize recent progress in above-mentioned circRNAs associated with Alzheimer's disease (AD).
Jan 2021 DOI 10.14302/issn.2379-7835.ijn-20-3680
Background This study focused on nutritional status of the rickshaw pullers, their dietary energy and nutrients consumption along with their energy intake gap as compared to expenditure. Methods A cross sectional study was carried out at 15 different important locations of Dhaka city during December-January 2018. In total, 670 rickshaw pullers from these locations were randomly selected. Printed predesigned and validated semi structured questionnaire was used to record necessary information. Nutritional status was determined according to Asia specific BMI cut- off values. Energy expenditure was calculated using their Basal Metabolic Rate (BMR) and Physical Activity Level (PAL) value. 24-hour dietary recall method was administered for dietary analysis. Results About 65.4% of them were found within normal BMI range. About 11.5% were underweight and about 23.1% were found having more than normal BMI. Percentage of both underweight (39.0%) and overweight (35.8%) were found higher among those who were between 25 and 35 years. Average daily dietary energy consumption was 2391 kcal and energy expenditure were found 4608 kcal. Their energy consumption was found 2217 kcal less compared to their energy expenditure. Conclusion The current study revealed the nutritional status, dietary intake of the rickshaw pullers of Dhaka city and found energy gap in their dietary intake compared to their expenditure. For their better health and nutrition outcome integrated approach should be taken by the responsible authorities.
Apr 2020 DOI 10.14302/issn.2693-1176.ijgh-20-3269
Abdominal obesitywith a big belly is one of the worse type of morbid obesity that is associated with different health failure outcomes. Central obesity leads to an increased risk of health complications such as metabolic syndrome, hypertension, insulin resistance,type 2 diabetes, heart disease and various cancers. Abdominal obesity also can specifically cause to spinal nerve pain and backache. Depression and disability are other subsequent hazards of central fatness. More importantly ,excessive central body fat ultimately contributes in all-causes of early mortality. In regards to this, individuals with abdominal obesity is urgently needed to reduce central obesity using behavior modifications. Changes in diet and performing some exercise in everyday living are essential steps.
Feb 2020 DOI 10.14302/issn.2379-7835.ijn-20-3188
This article has been retracted on 18 March 2021. VIEW THE RETRACTION NOTICE (https://doi.org/10.14302/issn.2379-7835.ijn-25-5865) A mini-review of literature data on the mechanisms of formation of the stock of free amino acids and their derivatives in atherosclerosis and methods for correcting metabolic imbalance.
Dec 2019 DOI 10.14302/issn.2372-6601.jhor-19-3095
A mini-review of literature data on the mechanisms of formation of the stock of free amino acids and their derivatives in liver pathology and methods for correcting metabolic imbalance
Sep 2019 DOI 10.14302/issn.2574-450X.jom-19-3001
Gene therapy has entered a new era with the dawn of CRISPR/Cas9 technology which though were always available in nature but rediscovered to tame into a real-tlife genome editing tool. With the modernization upsurge and changes in ways the “homo sapiens” survived on this planet from hunger to current era of exuberance has led to multiple metabolic issues like type-2 diabetes. Notwithstanding the rapid emergence of medication to suppress the hyperglycemia and insulin resistance associated with this menace, need has definitely emerge to find more personalized and curative dimensions to therapeutics of type-2 diabetes mellitus. Gene therapy is one more addition to Type-2 Diabetes Mellitus (T2DM) therapy, where multiple options have emerged in the shape of microRNA, direct knocking out of cellular structures like proteins and enzymes and very recently the precision nucleases associated with CRISPR technologies. This mini-review attempt to summarize some of the recent examples of gene therapy with major focus on CRISPR/Cas technologies.
Sep 2019 DOI 10.14302/issn.2577-2279.ijha-19-3026
Background Hypothyroidism is a metabolic disorder affecting the functions of many tissues in the body including the testis. Testis is rich in the polyunsaturated fatty acids content and lacks strong intrinsic antioxidant system making it prone to such oxidative stress. L-carnitine (LC) regulates long chain fatty acids metabolism; and is considered a valuable antioxidant factor. Aim It was to evaluate the effect of hypothyroidism induced by propylthiouracil (PTU) on rats’ testes and the possible protective role of LC. Methods Forty-eight adult male albino rats were used in this work. The animals were divided into three groups with sixteen animals in each. Group 1 (Control): Animals were kept without medications. Group 2 (PTU-treated): was subjected to administration of PTU; while group 3 (PTU and LC) received both PTU and LC. By the end of the experiment “30 days”, blood samples were taken for hormonal assay; then animals were anaesthetized and sacrificed. Specimens were homogenized for biochemical analysis; epididymal content of each rat was obtained immediately for semen analysis. Testes’ specimens were harvested, prepared and examined by light microscope examination. Results Induced hypothyroidism was noticed to cause histopathological, morphometric and biochemical changes in rat’s testes. LC protected the testicular specimens against such changes; it also improved the seminal quality and quantity as well as testicular structure and biochemistry. Conclusion Hypothyroidism could result in hazards to the structure of testis. Fortunately co-administration of LC might reduce such hazards.
Sep 2019 DOI 10.14302/issn.2379-7835.ijn-19-2968
Physical activity (PA) decreases in late adolescence and young adulthood when this age cohort enters the workforce with many being employed in the foodservice industry. Daily energy expenditure can be divided between occupational physical activity (OPA) and leisure-time physical activity (LTPA). Although LTPA is known to be associated with positive health benefits, a limited number of studies have investigated the influence of OPA on LTPA in young restaurant servers. This study measured via accelerometry, OPA and LTPA for a 7-day period from a sample of young adult servers (n = 7, 23-29 years old) from two restaurants. Resting metabolic rate was measured via indirect calorimetry and inputted into the AMP 331 accelerometer for energy expenditure calculations. Energy expenditure patterns were compared to age- and sex-specific normative data, occupational classifications, and the Canadian PA Guidelines to Healthy Active Living (CPAG). Energy expenditure results and step count values were higher for working versus non-working days and working versus non-working periods. Daily, working energy expenditure was approximately equal to normative data, while non-working daily energy expenditure was lower. The working period energy expenditure placed this population in the ‘exceptionally active’ OPA classification. Minimum PA levels, based on CPAG were met each day, however 10,000-steps-per-day were only achieved on working days. None of the participants logged LTPA and therefore 100% of their PA came from OPA. More research is needed over a longer duration and at different times in the year to identify the effect OPA has on LTPA in this population.
Sep 2019 DOI 10.14302/issn.2474-7785.jarh-19-2994
Telomerase and SIRT1 (member of the sirtuin protein family) along with the lifestyle and diet are the major determinants of aging and its associated diseases such as cancer and cardiovascular disorders. The study objective was to investigate the effect of Consciousness Energy Healing based novel test formulation in pre-adipocytes (3T3-L1) and human peripheral blood mononuclear cells (PBMCs) for anti-aging activity using SIRT1 and telomerase assay. The test formulation was divided into two parts. One portion was denoted as the untreated test item without any Biofield Energy Treatment, while the other portion was defined as the Biofield Energy Healing Treatment, which received the Biofield Energy Healing Treatment by a renowned Biofield Energy Healer, Mahendra Kumar Trivedi. The cell viability using MTT assay showed that the cell viability of 3T3-L1 and PBMCs cells was more than 70% indicating a safe and nontoxic profile. The experimental data in PBMCs cells showed that the Biofield Energy Treated Test formulation showed a significant improved telomerase activity by 39.25%, 20.86%, and 17.95% at concentrations 0.01, 5, and 100 µg/mL, respectively as compared with the untreated test formulation group. These results indicate that the Biofield Energy Healing Treatment would be the significant approach to prevent aging-related disorders such as decline cardiovascular diseases, osteoporosis, dementia, osteoarthritis, Alzheimer’s, hypertension, cancer, Parkinson's Disease, Chronic Obstructive Pulmonary Disease (COPD), Stress, Asthma, cataract, age-related macular degeneration (AMD), hearing loss and metabolic disorders.
Jul 2019 DOI 10.14302/issn.2470-0436.jos-19-2904
This case series presents 2 patients (67 and 58 year old females) with resolving vitreous hemorrhage in the setting of diabetic retinopathy. Both patients had around 50% of the retina still visible and the hemorrhage was confined at the posterior vitreous cavity near the retina, hence, a partial pan retinal photocoagulation (PRP) was feasibly applied. On B-scan, both cases showed a liquified vitreous with posterior vitreous detachment (PVD). For both patients, vitreous hemorrhage resolution occurred at less than 4 months from onset and consequently PRP was completed. Vitreous hemorrhage differs with bleeding in other tissues due to the presence of vitreous collagen matrix which promotes rapid clotting and hinders resolution of hemorrhage by preventing passive diffusion and delay in inflammatory cellular response. The prognosis for clearing hemorrhage was better when the fundus reflex was brighter and the retina adjacent to the ora serrata was visible. Clearing occurred sooner when hemorrhage was retrohyaloid rather than in the vitreous gel. In diabetic eye, the vitreous undergoes metabolic derangements resulting in premature liquefaction and abnormal vitreoretinal adhesion leading to traction and membrane formation. Partial PVD has also been associated with higher rate of diabetic retinopathy progression since it serves as scaffold for growth of neovascular tufts.
Mar 2019 DOI 10.14302/issn.2576-6694.jbbs-19-2684
Yeast as unicellular organism, has shown multiple application due to exhibition of noble ability in its cells. And engineered yeast has found more suitability in bioprocesses application as well as adverse conditions adaptation. Different types of yeast strains showed their best capability to adapt the salt and sugar rich environment with their optimal growth capability. These strains, used as suitable and novel cell factories for production of value added bio-products (via utilization of fermentation processes) and also for different types of bioprocesses. Application of yeast species in biotechnology field, enhanced in current periods, due to conversion of its wild to engineer strain, suitable for bioprocesses utilization and also for different types of biochemical synthesis. Different yeast species identified due to known their genetic, regulatory mechanism and also competitive metabolic pathways. In this regards, different type of engineering approaches (for genetic or pathways modification), applied to construct the optimal and suitable cell factories for different types of bioprocesses as utilized in different sectors (foods with mineral or protein rich, bread, brewing, cosmetics, chemical, agriculture, pharmacy and distillation industries) via improving the quality of bio-products. Further, in silico designed based metabolic engineering technique showed the improvement in performance of yeast strain. System and synthetic biology with engineering approaches applied to further improve the yeast mediated bioprocesses as well as biochemical products formation for industrial or biotechnological application. Some bio-products such as functional bio-molecule, different types of alcoholic biofuels, organic acids and enzymes etc are good examples of yeast mediated biochemicals products, utilized more frequently in our life. Author will focus recent research and development on bio-product formation or bioprocesses with their regulatory control mechanism in different yeast strains.
Feb 2019 DOI 10.14302/issn.2374-9431.jbd-19-2613
Diabetes mellitus (DM) is a chronic metabolic disorder. Streptozotocin is a naturally occurring cytotoxic chemical, particularly toxic to the pancreas and insulin producing beta cells in mammals and induces diabetes. Glimepiride is a second generation sulfonylurea, used as second-line or add-on treatment options for type 2 diabetes. Fenugreek (Trigonella foenum graecum) seeds have been documented as a traditional plant treatment for diabetes. Soluble dietary fiber of Fenugreek significantly improved oral glucose tolerance in diabetic rats. It also exerts anti-diabetic effects mediated through the inhibition of carbohydrate digestion and absorption and the enhancement of peripheral insulin action. Most herbal remedies can interact with allopathic drugs resulting in altered activity and toxicity. At the same time, herbal remedies might produce the same kind of effects as the drug produce. Current published research information on herb-drug interactions is scanty. So, the aim of this study was to investigate the possible interaction between conventional drug used for the management of diabetes; (Glimepiride) and a traditional herbal remedy; Fenugreek aqueous extract in Streptozotocin induced diabetic male albino rats. In conclusion, combination therapy induces better hematological, biochemical effects and improves the oxidative stress biomarkers and antioxidant enzymes. Histological studies showed better results on some organ functions. The results emphasize the benefit of using the combination of Fenugreek seeds aqueous extracts as supportive complementary anti-diabetic therapy.
Jan 2019 DOI 10.14302/issn.2470-5020.jnrt-18-2555
Introduction: Tension-type headache (TTH) is very common, with a lifetime prevalence in the general population ranging in different studies between 30% and 78%. TTH, divided into episodic and chronic types, introduced in the manual "International Classification of Headache Disorders"(ICHD-I), is of practical importance. Infrequent episodic headaches (no more than once a month) may not require drug therapy, but, on the contrary, frequent forms may require expensive treatment. Objective: To study the state of cerebral hemodynamics and cerebrovascular reactivity in patients with Tension-type headache and evaluate the efficacy of treatment with Phenibite using Doppler ultrasound. Materials and Methods: A retrospective analysis of the results of ultrasound dopplerography of the anterior, middle and posterior cerebral arteries (ACA, MCA and PCA), Vertebral and Basal (VA, BA) arteries was performed in 188 patients with TTH. Among them are infrequent episodic TTH - 68 (36,2%) patients, frequent episodic TTH - 64 (34,0%) patients, chronic TTH - 56 (29,8%) patients. The age of the subjects was 18-45 years, among them 85 (45.2%) men and 103 (54.8%) women. The maximum systolic velocity (Vs), the end diastolic velocity (Vd), the resistance and pulsativity indexes (RI, PI) in all vessels were determined. Patients were given consent to participate in the study. Results: Infrequent episodic (IFE) TTH were recorded in 86.4% of cases, frequent episodic (FE) — in 88.9%, and chronic (Ch) TTH — in 81.6% of cases. Bilateral TTH was noted in 39.2%, frontal localization - in 35.6%, in the occipital region - in 25–7% of cases. The asymmetry of the maximum systolic blood flow velocity (Vs) in the paired arteries within 20-30% was considered a violation of cerebral hemodynamics, which was detected in 38.7% of patients. An increase in Vs was noted in all cerebral vessels, especially in patients with FE TTH and chronic Ch TTH compared with the control group. In patients with IFE TTH the average value of RcFMt was 1.24±0.03, in patients with FE TTH - 1.25±0.02, in patients with Ch TTH - 1.27±0.03. In patients with TTH, hyper-responsiveness to hypercapnic test was detected: RcCO2 was 1.43±0.05 in the group with FE TTH; 1.39±0.07 in the group of Ch TTH and 1.37±0.04 in the group of IFE TTH, which indicates a tendency for the tension of the vasodilator regulation mechanism even in clinically insignificant forms of TTH. In the study of reactivity to the O2-test, a hyporeactive response was observed in the groups with FE TTH and Ch TTH (0.38±0.04 and 0.35±0.05, respectively. The treatment with Phenibut carried out in a step-by-step manner - during the first week the drug was applied at a dose of 250 mg 2 times a day, over the next 6 weeks the dose increased to 500 mg 2 times a day, then the dose was reduced back to 250 mg 2 times a day. Among patients with FE TTH, the frequency of headache decreased from 5.7±2.3 to 3.6±2.1 days/month, and in patients with Ch TTH - from 22.8±1.7 to 17.7±1,3 days/month (P<0,05). Influence of the drug was manifested at the initially increased RcFMt and RcCO2. A decrease in initially elevated RcCO2 was noted in all (FE TTH, ChTTH, IFETTH) clinical groups. However, this decrease was not statistically significant. Conclusion: In patients with TTH, an increase in the Vs is more often recorded, their asymmetry in the middle cerebral artery. Hyperreactivity on CO2-load is typical for patients with chronic TTH, and reflects the mobilization of metabolic regulation of cerebral blood flow. Conducting FMt was the most informative method for detecting autoregulatory disorders mainly in patients with IFE TTH. FE TTH in patients is characterized by the presence of a hyperactive reaction to hypercapnic and orthostatic tests, probably due to mobilization of humoral-metabolic and neurogenic links of regulation. In the group of patients with chronic TTH prevails hyporeactivity for hyperventilation test, reflecting the depletion of vasoconstriction reserve. The use of Phenibut(Noophen® (JSC Olainfarm Latvia in the treatment of TTH is accompanied by a decrease in the frequency of pain, and of pericranial muscle tone, most pronounced in patients with FE TTH. It's effectiveness is evident in the normalization of the coefficients of cerebrovascular reactivity in a patients with chronic TTH. The minimal statistical significance was observed on the dynamics of blood flow only in the VA.
Dec 2018 DOI 10.14302/issn.2576-6694.jbbs-18-2489
Essential oils, called volatile oils or ethereal oils, are natural metabolic secretions of plants, the role of which is not yet fully understood by science. Some specialists consider them to be true plant hormones, fluid manifestations of the immune system of plants, in the sense that they contribute to the removal of pests, attracting, instead, pollinating agents, which are some insects and birds. Small, light–colored spherical structures, is, in fact, modified filaments, which behave like some secretory glands of essential volatile oils. They are the ones who give the fragrance of the aromatic plant and have, in the case of salvation, medicinal curative properties, such as fever reduction, blood cleansing, and relieving pain. Essential oils are products isolated from plants or organs through a physical process that have a certain volatility (higher or lower) and possesses an agreeable odour characteristic of the source from which they originate. They are also known as volatile or essential oils and their name are usually given by the popular name of the plant from which they are extracted. The most important characteristic of these mixtures, which also gives the special economic value, is the specific smell. This is the basis for their use in perfumery, cosmetics and the food industry. Many essential oils have special therapeutic qualities, some of which have been known and used since antiquity.
Nov 2018 DOI 10.14302/issn.2575-1212.jvhc-18-2455
In the current study, The GC-MS metabolomics approach was used to evaluate the effect of cypermethrin on the metabolic profile in liver tissue of common carp fish. Fish were exposed to low and high concentrations of cypermethrin (0.1 and 1 µg/L respectively) for 24 and 96 h with subsequent PCA analysis to illustrate the response of the metabolic system after exposure to the pyrethroid. Cypermethrin induced obvious alteration in the intermediates of TCA cycle and encouraged consumption of non-carbohydrate sources in liver at all-time points. Additionally, cypermethrin exposure reduced the level of several amino acids and induced damage to the nucleotides reflecting the effect of cypermethrin on purine metabolism. GC-MS based metabolomics approach is a new and powerful tool to understand the toxicological effects and the underlying mechanism of cypermethrin on fish.
Nov 2018
Pre-adipocytes are the precursors with the potential to make new fat cells during adipose tissue expansion. Nevertheless, the pre-adipocytes behaviors, and their possible roles in energy homeostasis have long been overlooked. Our previous study implicates that interleukin-4 (IL-4) plays a positive metabolic role by promoting insulin sensitivity and inhibiting lipid accumulation. Besides, abundant evidence shows the involvement of matrix metalloproteinase-2 (MMP-2) in the process of adipose tissue expansion. The present study aimed at examining the cross talk among glucose, insulin and IL-4 on regulating MMP-2 expression and activity in 3T3-L1 pre-adipocytes. Effects of insulin and/or IL-4 on MMP-2 expression and activity were examined in pre-adipocytes under euglycemic or hyperglycemic environment by RT-PCR and gelatin zymography, respectively. Our results revealed that glucose level is a pre-requisite for pre-adipocytes responding to insulin and/or IL-4 treatment. In high glucose-containing environment, short-term acute insulin treatment (AI) and long-term chronic insulin exposure (CI) showed opposite regulation to MMP-2 expression and activity. Interestingly, the dominant MMPs regulatory role of CI under euglycemic condition was attenuated in cells exposed to high glucose concentration. Our results suggest pre-adipocytes may participate in the process of increasing adiposity, diabetic onset and diabetic complications through ECM alterations resulted from the insulin- and/or glucose- mediated changes of MMP-2 activity. The present study uncovers novel observations regarding pre-adipocytes behaviors.
Jan 2018 DOI 10.14302/issn.2641-5526.jmid-17-1891
Background Conventional tools for medical education are burdened by many drawbacks. Textbooks become rapidly outdated, meeting attendance is expensive, and results reported in journals are not easily suitable for clinical practice. Uptodate and Endotext are excellent online tools, but they have been developed for a clinical context far different from that of our country. Methodology Italian Association of Clinical Endocrinologists (AME) charged a task force aiming to develop an educational tool specifically tailored for Italian clinical endocrinologists. Required characteristics were clinical approach, modularity, continuous updating, full online availability (even by mobile devices), open sections and sections for registered members only, opportunity for individualization, indexing and search engine to facilitate browsing. Starting from an open-source platform, Joomla, several changes were implemented. Results Three editors, 2 central editorial secretaries, 30 section coordinators and over 350 authors have been involved in the writing of 21 different sections covering all fields of endocrine and metabolic diseases. The access to Endowiki is free for AME members and is fully open in sections for patients. All readers are requested to serve as referee, pointing to mistakes and need for revision. The system is attended daily by a mean of 250 individuals. Conclusions Endowiki stands alone as an opportunity for medical education in Italy. The big challenges will be the continuous updating and the link to the national certified system for CME.
Nov 2017 DOI 10.14302/issn.2574-4526.jddd-17-1792
Objectives: Bariatric surgery has been established as the cornerstone of treatment of morbid obesity with good immediate and long-term results. Nutrient deficiencies though, can be an important long-term complication and may lead to hematological, metabolic and especially neurological disorders which are not always reversible. Thiamine (vitamin B1) deficiency has been reported both after restrictive and malabsorptive procedures. The aim of this study is to review all cases that presented with Wernicke Encephalopathy after sleeve gastrectomy. Methods: A review of the literature was conducted to evaluate all sleeve gastrectomies performed till today and caused Wernicke encephalopathy to the patients. Demographic data, operative parameters, postoperative outcomes were collected and assessed. Results: A total of 13 studies, including 13 patients were analyzed. Patients ranged in age from 17 to 55 years. The onset of Wernicke encephalopathy occurred as early as 3 weeks after surgery to as late as 60 weeks after surgery. When symptoms of Wernicke encephalopathy developed, patients had lost from 19 kg up to 60 kg of body weight. Conclusions: Micronutrient deficiencies and particularly B1 deficiency can occur after LSG, although rarely. Preoperative nutritional assessment and postoperative follow-up plan, should signs of Wernicke’s encephalopathy be traced, is recommended in all patients.
Aug 2017 DOI 10.14302/issn.3070-2313.jeh-17-1552
Introduction. Obesity often coexists with insulin resistance, which is related to cardiometabolic risk. However, some obese individuals exhibit comparable insulin sensitivity (IS) to that of normal-weight subjects, a state associated with a reduced cardiometabolic risk. We aimed to determine the efficacy of a panel of surrogate markers of insulin sensitivity (IS) for the identification of insulin sensitive obese (ISO) vs. insulin resistant obese (IRO) with similar total fat mass (FM) and body mass index (BMI). Methods. This is a cross-sectional analysis among 144 overweight and obese post-menopausal women. IS was determined by the hyperinsulinemic-euglycemic clamp (HEC) and by surrogate indices such as Matsuda index, the simple index assessing insulin sensitivity using oral glucose tolerance test (SIisOGTT), Abdul-Ghani liver IS index, HOMA-IR and Abdul-Ghani muscle IR index. Results. When using upper and lower quartiles values or the median as cut-off for IS determined by the reference HEC to define ISO vs. IRO, Matsuda index, SIisOGTT and Abdul-Ghani indices classification identified ISO vs. IRO individuals with similar FM and BMI. With HOMA-IR, the two groups were similar for FM and had borderline significant difference in BMI. Using, receiver operating characteristic curves, Matsuda index AUC was similar to that of SIisOGTT and both indices AUCs were significantly higher than Abdul-Ghani indices AUCs. The best cut-off value for the Matsuda index was 2.5 (83.1% specificity, 54.2% sensitivity) and 0.25 for SIisOGTT (64.8% specificity, 70.8% sensitivity). Conclusion. Whole body IS indices, Matsuda and SIisOGTT indices seem to be reliable indices for the identification of ISO vs. IRO individuals.
Aug 2017 DOI 10.14302/issn.2690-4721.ijcm-17-1676
Malaria is a mosquito-transmitted infectious disease caused by intracellular protozoan parasites of the genus Plasmodium. In the absence of prompt and appropriate treatment contraction of primary infection by a human being often represents a medical emergency since it may progress rapidly to life-threatening complications. Exposure to parasites activates the immune system resulting in, among other effects, the release of reactive oxygen intermediates (ROI). This has the potential to induce oxidative damage, thereby causing cellular destruction, and hence to have a severe effect on vital organs of the body. Overexpression of ROI leads to immunosuppression and is a causal factor in the development of malaria-related disease symptoms. However, the body possesses various defence mechanisms, notably including the production of antioxidants, which are capable of reducing the cellular effects of ROI. Antioxidants are either sourced exogenously from the diet or synthesized through different intracellular mechanisms. Antioxidants that include glutathione peroxidase, catalase, EDTA and vitamin C suppress the initial production of ROI. Others such as uric acid, superoxide dismutase and vitamin E may also inhibit potentially damaging products of ROI metabolism. Current anti-malarial drugs often have damaging side-effects, as exemplified by memory impairment following treatment for cerebral malaria. Recent studies have explored the potential use of antioxidants alone or in combination with anti-malarials as a therapeutic means to negate Plasmodium-induced oxidative stress and its associated metabolic complications. It is indicated that when utilized in an adjuvant capacity antioxidants of natural and synthetic origin may improve anti-malarial therapy by causing less damage to the host during malaria infection.
Jul 2017 DOI 10.14302/issn.2574-4372.jesr-17-1705
Drug-induced cardiotoxicity is one of the predominant reasons for drug attrition and withdrawals. This is of critical concern when potentially cardiotoxic drugs are administered to individuals with inherited arrhythmogenic cardiac diseases or with metabolic diseases such as obesity and diabetes, which are key risk factors for cardiovascular diseases. Pathophysiological alteration prevalent under such conditions can alter or exacerbate cardiotoxic responses. The growing incidence of obesity, diabetes and metabolic syndrome subject a significant percentage of the population to drug treatments, thereby augmenting their risk for drug-induced cardiovascular toxicity. Hence, screening for drug-induced cardiotoxicity early in the preclinical stages of drug development, by using appropriate human disease models, can be effective in ensuring safety in clinical trials and preventing late stage and post-marketing drug withdrawals owing to cardiotoxicity. The advent of human pluripotent stem cells (hPSC) and induced pluripotent stem cell (iPSC)-derived cardiomyocytes are revolutionizing safety/toxicity screening in human cells by providing relevant human-specific, renewable model systems to explore human drug toxicity. The ability to generate patient-specific iPSCs that can model cardiac diseases, now offers a valuable option that can further improve drug safety assessments and enable a more accurate prediction of toxicity that occurs in the representative population that are prescribed the drugs. Use of appropriate disease models will not only provide cost savings by decreasing potential drug attrition and withdrawals, seen with many drugs, but will also be a promising option to advance precision medicine
Dec 2016 DOI 10.14302/issn.2379-7835.ijn-16-1360
Energy intake has been decreasing these ten years in Japan, and low energy intake is remarkable especially among young women. We attempted to show the dietary habits and physiological function including glucose tolerance and stamina for endurance-running in contemporary young Japanese women who take insufficient energy. 85 healthy women aged 20.5±1.1 years were enrolled in the present study. Subjects were categorized in two groups; Group I (n=70) with higher energy intake, and Group II (n=15) with lower energy intake than the basal metabolic rate (BMR). Actual energy intake in Group I was 1598.8±282.1 kcal/day, and it was 1019.9±127.1 kcal/day in Group II (p<0.01). Standard 75-g oral glucose-tolerance test was performed, and the capillary glucose value was measured at the fingertip. In Group I, glucose values at fasting, 30, 60 and 120 min were 75.0±9.1, 132.1±25.2, 120.5±27.4, 105.3±19.5 mg/dl, and those in Group II were 78.9±7.7, 155.8±26.6, 142.2±26.6, 112.3±16.0 mg/dl, respectively. The values of Group II at 30 and 60 min showed significantly high (p< 0.01). Stamina and the intake of protein in Group II were significantly lower than those in Group I (p<0.05), and muscle mass and grip strength were less in Group II than in Group I, though there was no significant difference. We indicated with these results that low skeletal muscle was considered to be responsible for the impairment of glucose regulation in Group II. This study showed that young women with low energy intake should take sufficient energy and build skeletal muscle to prevent the impairment of glucose regulation.
Nov 2016 DOI 10.14302/issn.2574-4526.jddd-16-1322
Summary Primary malignant melanoma arising from the parotid gland is extremely rare and only sporadic cases have been described. This entity is characterized by delayed diagnosis, poor prognosis and controversial pathogenesis. We report a case of primary malignant melanoma of the parotid gland in a 54-year-old man. The initial diagnosis, made by fine needle aspiration cytology, was malignant tumor without precision. Radical parotidectomy was performed. Diagnosis of primary melanoma of the parotid gland was confirmed by immunochemical analysis revealing positive staining for S-100, HBA-45 and Melan A. Computed Tomography and whole-body 18F-FDGPET/CT image were made to evaluate metabolic and morphologic characteristics of the primary melanoma, to identify potential systemic metastasis at early stage and to exclude primary melanoma elsewhere in the body. The clinical, pathological, immunohistochemical and the role of combined FDG PET/CT features of this lesion are discussed compared to a literature review.
Jul 2016 DOI 10.14302/issn.2572-5424.jgm-16-1066
Lactic acidosis is a condition commonly encountered in the hospital setting particularly in critically ill patients and is very often used as a diagnostic adjunct when encountering cases of ischaemia or other hypoperfusion states. Despite its use many clinicians have long forgotten the biochemical mechanisms that give rise to hyperlactataemia. One reason for this is because the basic science regarding lactate metabolism is taught in the early years of the medical undergraduate course, and unless one specialises in metabolic medicine, is unlikely to encounter it again. In this article we aim to elucidate the basic mechanisms of lactate metabolism and the accompanying acidosis, and illustrate various clinical settings that give rise to this biochemical abnormality.
Jun 2016
Earlier studies reported significant association of obesity, hypertension and Type2 Diabetes Mellitus (T2DM). Genetic and many disease-associated alleles have been identified through GWAS and applied to T2DM and indicated roles of renin-angiotensin system (RAS) in insulin signaling pathway and insulin resistance has been well documented. Angiotensin converting enzyme (ACE) gene catalyzes the conversion of angiotensin I to angiotensin II and also inactive the vasodilatation and hence renin-angiotensin system (RAS) in insulin signaling pathway and insulin resistance has been reported. To best of the knowledge we are reporting for the first time regarding association of ACE gene polymorphism with body composition, physiological and metabolic variables among any endogamous ethnic group (Kurmis) from of West Bengal, Eastern India. To achieve the purpose, total 197 (male 99 and female 98) randomly selected apparently healthy unrelated adult individuals of Kurmi population of Purulia District, West Bengal, India were incorporated in the present study. Anthropometric variables, physiological variables (blood pressure) and metabolic variables (PP blood sugar) have been collected using standard techniques. Extracted genomic DNA was PCR amplified and genotyped to understand ACE gene I/D polymorphism. The result demonstrated significant (p<0.05) sexual dimorphism in PBF. MAP and PP blood sugar found to be in normal range among the Kurmis. ACE gene polymorphism showed no deletion of the Kurmis and hence, only the prevalence of ACE II (insertion-Insertion) genotype has been noticed. The present study vindicated on the basis of body composition in terms of fat patterning, physiological and metabolic variables and ACE gene polymorphism that there is very low or no risk of T2DM among the Kurmis of West Bengal, India.
Jun 2016 DOI 10.14302/issn.2374-9431.jbd-15-647
Diabetes is a metabolic disorder that results in human body due to insulin deficiency, insulin resistance or both. In the management of diabetes, glucose monitoring technology has been used for the last three decades. The aim of this review article is to describe concise and organized information about different techniques of non-invasive continuous blood glucose monitoring. Many research groups have been working to develop wearable sensors for continuous blood glucose monitoring, but at present, there are to our knowledge no commercially successful non-invasive glucose monitors on the market. To achieve an acceptable sensor system, a glucose sensor should have accuracy better than 15mg/dl (0.8 mmol/l). In future development, continuous glucose sensor systems may become predictable, selective, reliable and acceptable for patient use.
Jun 2016 DOI 10.14302/issn.2572-5424.jgm-16-1028
N-acetylaspartylglutamate (NAAG) is the highest concentration dipeptide present in brain. It is found primarily in neurons but its function is unclear. NAAG is synthesized by neurons from N-acetylaspartate and glutamate (Glu), maintained at mM concentrations and is released non-synaptically to extracellular fluid (ECF). NAAG is a non-excitatory form of Glu, and is targeted to the metabotropic group II Glu receptor 3 (mGluR3) on the surface of astrocytes. After docking with the receptor, Glu is released by the action of NAAG peptidase. Previously, it was shown for the first time that an NAAG-peptidase inhibitor reduced global cerebral blood flow (CBF) in mouse brain but did not affect their physical performance. Recently, it has been demonstrated that there are two separate systems involved in neurovascular coupling by astrocytes, one is a rapid focal phasic response providing energy for stimulation-induced neuronal activity, and the other a slower global tonic response providing energy for ongoing metabolic activities. Many neurovascular coupling mechanisms are known that regulate phasic changes in CBF, but how the brain accomplishes tonic control is unknown. In this paper we bring together two separate lines of inquiry, the decades’ long search for the function of NAAG, and the more recent search for the mechanism of tonic neurovascular control. Herein, we present evidence that NAAG is the neurovascular coupling agent that regulates tonic changes in CBF via the astrocyte mGluR3-NAAG peptidase connection.
May 2016 DOI 10.14302/issn.2574-450X.jom-16-1039
Over the last three decades, an epidemic of obesity has markedly affected patients suffering from mental illnesses such as schizophrenia. Antipsychotic medications used to treat schizophrenia are considered as major culprits. The aim of this review is to first consider risk factors, to then outline negative sequelae of obesity for this population, and finally to address timing and content of recommended clinical interventions. Medical databases were searched with the terms “”weight,” “obesity,” and “schizophrenia.” Selection of articles was guided by date of publication; recent papers are preferentially cited. The main findings were that, in addition to antipsychotic medications, socio-economics, lifestyle, immune factors, and circadian rhythms also contribute to obesity risk. A barrier to effective health promotion within psychiatry has been the concern that fears about gaining weight might stop individuals with schizophrenia from taking needed antipsychotic medication. Recommendations, therefore, are to keep the dose of antipsychotic medication as low as possible, avoid polypharmacy, encourage healthy eating and physical activity, address sleep problems and substance use, monitor weight, blood pressure, and metabolic parameters regularly, utilize motivational interviewing techniques and peer support, pay special attention to special needs such as those of women during pregnancy, and include bariatric surgery as a potential intervention. Conclusion: Besides careful attention to medication regimens, the literature supports the active encouragement and support of patient self-management strategies to both prevent and manage obesity in schizophrenia.
Jan 2016 DOI 10.14302/issn.2379-8572.joa-15-814
Background and Objective: The etiological factors for nasal polyps include infection, inflammation or an imbalance of a metabolic pathway. This study was designed to compare serum Helicobacter pyloriantibodies and H. pylori–DNAs between cases of nasal polyp and controls (nasal fracture). Patients and Methods: This case control study was carried out in ENT Department of Rasul Hospital in Tehran (2007-2008), upon nasal polyp tissues in 62 cases and inferior nasal turbinate mucosa in 25 controls. H. pylori–DNAs were searched by qualitative polymerase chain reaction (PCR) and serum specific H. pylori antibodies (ELISA IgG and IgA). Comparative tests were performed for the 2 groups, and P value < 0.05 was considered as statistically significant. Results: The mean age of cases and controls were 37.5 ± 13.7 and 31 ± 11.5 years, respectively. H. pylori–DNA was found in 32.3% (20/62) of the cases and 4% (1/25) of the controls (P value = 0.005). Serum H. pylori antibody (IgA) was found in 14.5% (9/62) of the cases and 4% (1/25) of the controls (P value = 0.27). However, previous immunity (IgG) was higher in 71% of the cases and 32% of the controls (P = 0.001). Conclusion: H. pylori infection may play a key role in the formation of nasal polyps. We recommend the PCR as the best method of searching for H. pylori infection. However, from the data obtained in this investigation it could not be determined whether or not H. pylori play a pathogenic role. Long-term antibiotics treatment in cases with nasal polyp, especially in cases with severe chronic rhinosinusitis where patients do not respond to surgery or steroids, may be useful. More randomized controlled trial (RCT) studies are necessary to validate the role of H. pylori infection in nasal polyp and the effect of antibiotics for eradication of H. pylori infection.
Jun 2015 DOI 10.14302/issn.2574-4372.jesr-14-607
Cancer is influenced by the ability of cells to maintain circadian rhythms in molecular and metabolic processes. Disturbance of the underlying circadian timing mechanism in circadian clock cells leads to a higher frequency and more rapid progression of cancer. Cancer stem cells with properties of embryonic and somatic stem cells have been implicated as tumor initiators in several types of cancers. Although tumors are reported to have disorganized circadian rhythms, evidence of in vitro circadian rhythms in cancer stem cells of gliomas was recently presented. The possibility and consequences of circadian clocks functioning in cancer stem cells within tumors is examined, and the possible benefits to these cells from circadian timing is discussed in relation to cancer treatments.
May 2015 DOI 10.14302/issn.2379-7835.ijn-14-603
Epigenetic mechanisms based on DNA methylation, histone modifications and RNA interference have recently showed important association to the development of a wide variety of diseases such as cancer, cardiovascular, metabolic, skin, autoimmune diseases and neurologic disorders. In the context of preventive aspects, the importance of nutrition on epigenetic function has been revealed. Therefore, drastic changes in dietary modifications may contribute to reduced disease risk. For instance, dietary intervention has been showed to affect DNA methylation in Alzheimer’s disease patients. Moreover, maternal high-fat diet can regulate gene expression through promoter histone modifications. Most importantly, RNA interference and particularly micro-RNA mediated regulation of gene expression has been linked to disease development. Remarkably, dietary intake has been demonstrated to significantly affect various miRNAs and their regulation on gene function. In this review, the relationship between epigenetics and disease and development of drugs based on epigenetic targets is presented as well as the influence of dietary intake on epigenetic mechanisms and its effect on disease prevention and therapy will be discussed.
Feb 2014 DOI 10.14302/issn.2372-6601.jhor-13-346
Targeting cell metabolism is a therapeutic approach which has been used for the treatment of cancers with high levels of proliferation. Inhibition of metabolic processes in cancer cells has shown synergy with current therapeutic options to reduce refractory disease and relapse. In contrast, chronic lymphocytic leukaemia (CLL) is a disease where expansion of the malignant clone results from a combination of enhanced cell survival coupled with low level proliferation. The purpose of this article is to highlight how further research is needed to determine whether targeting cell metabolism may be a viable therapeutic strategy in this disease. We discuss how lymphocyte doubling time (LDT) remains a robust prognostic indicator used in the current clinical management of CLL, and how recognition of CLL as a proliferative disease has led to a greater understanding of the importance of energy-generating processes in its pathobiology. We summarize what is currently known about normal B cell metabolism and consider whether there is evidence of the Warburg effect in CLL cells. Finally, we speculate on how CLL cells may exploit protective mechanisms such as autophagy during times of metabolic stress and how they might influence or be influenced by metabolic characteristics of the microenvironment.
May 2013 DOI 10.14302/issn.2324-7339.jcrhap-12-140
Analyzing SNPs linked to fatty liver disease, this study finds no association with HAART‑related hepatic steatosis in HIV patients. The work underscores the multifactorial nature of antiretroviral toxicity and points to metabolic and pharmacologic contributors beyond common variants.