Context:Increased incidences of cardiovascular disorder and metabolic syndrome particularly after menopause have raised curiosity for the underlying factors. However, it is still a debate whether age or menopausal transition is a greater contributor.Aims:To elucidate the inter-relationships of age, menopause, and associated obesity and to assess their independent effects on aggravation of cardio metabolic risk factors in postmenopausal women.Settings and Design:Four hundred two women aged between 30 and 75 years were recruited in a cross-sectional study from Southern India. Three hundred sixteen participants exempting exclusion criteria, comprising of 169 premenopausal and 147 postmenopausal women were finally included.Materials and Methods:Anthropometric measurements such as weight, height, waist circumference (WC), hip circumference (HC), fat percentage, basal metabolic rate (BMR), and blood pressure were taken. Fasting plasma glucose, postprandial glucose, glycated hemoglobin (HbA1c), lipid profile, and C-reactive protein (CRP) were also measured.Statistical Analysis Used:Independent t-test, Analysis of covariates (ANCOVA), Pearson's correlation coefficients and multiple stepwise linear regression model analysis were done.Results:A significant increase in physical and metabolic factors was observed in postmenopausal women compared to premenopausal women except WC and HbA1c. Contrastingly, high-density lipoprotein cholesterol (HDL) levels and BMR were significantly decreased. After adjusting for BMI and age, the significant differences in the variables through the menopausal transition persisted, including an increase in WC. Significant correlation was observed between age and measures of general obesity such as BMI (P < 0.05) and fat percentage (P < 0.001) but not with central obesity indices. Menopausal status and WC exerted an independent effect on most of the metabolic risk factors (P < 0.001 or P < 0.01). Fat percentage was the predicting variable for CRP, HbA1c, diastolic blood pressure (P < 0.001), and HDL (P < 0.01). But Age showed independent effect only on HbA1c.Conclusions:Menopausal transition brings about anomalies in total body composition characterized by an increased body fat mass and central adiposity. This creates a compatible atmosphere for abnormal metabolism and aggravated cardio metabolic risk factors. Thus, menopausal status and associated obesity is the major predictor of metabolic aberrations over age in menopausal women.
Objective: The study aims to explore the prevalence of hypertension and its impact on Type 2 diabetes in a Mysore population of the Indian subcontinent. Methods: 636 participants volunteered for the study. Anthropometric measurements and blood pressure were recorded while plasma was analyzed for biochemical markers. The IDF and JNC 7 diagnostic criteria were followed to define diabetes and hypertension. Statistical Analyses: One-way analysis of variance, χ 2-test and Logistic regression analysis were performed to assess differences of the mean, proportion and the independent effect of hypertension on the development of type 2 diabetes. Results: Hypertension was observed to be prevalent in 37.1% of the studied population with an insignificant gender difference. Rate of occurrence of hypertensives was found to be significantly higher in type 2 diabetes (51.9%), obese subjects (45.2%), long-term smokers (49%) and alcohol addicts (48%) than control groups. The risk of development of diabetes was significantly higher in hypertensives than normotensive. However, when creatinine and blood urea nitrogen were included in the model, the significance was nullified. Conclusions: The prevalence of type 2 diabetes and hypertension is increasing at an alarming rate. This study reveals that the significance of hypertension as a parameter in predicting the risk of type 2 diabetes was influenced by the renal function and lipid profile.
The present case-control study was conducted to examine the association between mitochondrial DNA and type 2 diabetes mellitus (T2DM) in a South Indian population. The complete mitochondrial DNA sequencing from 438 individuals including 217 T2DM patients and 221 controls was carried out. An association of haplogroup U2 (odds ratio= 3.876; 95% CI: 1.240-12.116; P = 0.011) with an increased risk of T2DM in South Indian population was found by using haplogroup classification and association test. Two marker SNPs of haplogroup U2, m.1811A>G (MT-RNR2) (OR = 1.806, CI = 1.025-3.184, P value = 0.041) and m.16051A>G (D-loop) (OR = 2.511, CI = 1.166-5.409, P value = 0.019) were found to have significant association with occurrence of T2DM even after adjusting for gender and age. Though the results provide evidence that mitochondrial variants are major contributors to T2DM risk, they need to be confirmed with replication study in larger sample size.
Background: Ghrelin and leptin are the key hormones involved in the energy homeostasis and plays a relevant role in regulating hunger and satiety stimuli afferent to the brain. Abnormalities in the levels of ghrelin and leptin are often associated with the obesity and type 2 diabetes complications. However, there are no studies clarifying whether ghrelin and leptin levels have stronger association with obesity or Type 2 diabetes (T2DM). Aims:To evaluate and compare the independent effect of major dening factors of obesity and diabetes on ghrelin and leptin concentrations. Materials And Methods: Anthropometric measures such as height, weight, waist (WC) and hip circumference (HC), Body mass index (BMI), Basal metabolic rate (BMR), fat percentage, lean body mass, were taken. Assessed daily physical activity and energy intake. Biochemical parameters such as fasting glucose, postprandial glucose, HBA1c, ghrelin, leptin and insulin levels were measured. Statistical Analysis: One-way analysis of variance (ANOVA), Chi-square (χ2) test Pearson's correlation coefcients, Multiple stepwise linear regression model analysis were performed. Result: The diabetic subjects irrespective of obesity showed signicantly higher waist to hip ratio, HOMAIR levels of fasting blood glucose, postprandial glucose and signicantly lower levels of Ghrelin than non-diabetics. Similarly, obese subjects irrespective of diabetes have signicantly higher BMR and higher levels of Leptin than non-diabetics. Asignicantly higher BMI, fat mass percentage and lower lean body mass percentage were observed in obese subjects irrespective of diabetes than non-obese subjects. Among non-obese, diabetics have higher BMI, Fat mass percentage and lower lean body mass percentage. The levels of insulin were signicantly higher in diabetic obese subjects. HOMAIR (P≤0.0001) and Postprandial glucose (P≤0.05) showed negative independent effect and QUICKI (P≤0.0001) showed positive independent effect on the levels of ghrelin. BMI (P≤0.05) showed a positive effect and lean body mass percentage (P≤0.0001) showed an inverse effect on levels of leptin. Conclusion: It is evident from the study that low levels of ghrelin are predominantly associated with diabetes parameters when compared to parameters of obesity and on the contrary increased leptin levels have much stronger association with measures of obesity than diabetes. Evidence of altered leptin and ghrelin levels in these disorders infers vice versa, their respective roles in obesity and lean diabetes.
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