ABSTRACT
Background&objectives:Several studies have shown that obesity is closely related to Insulin resistance(IR). Insulin resistance has been suggested as a primary cause for metabolic syndrome. Identifying such individuals would help to prevent progression of comorbidities associated with IR. Hence present study was planned to assess the importance of Fasting Insulin(FI) as a measure of IR and to analyze its correlation with other indirect methods for the assessment of IR . Methods: Study was conducted in fifty obese and overweight subjects.Body Mass Index of all subjects was calculated . Blood glucose, and FI were assayed after twelve hours of fasting. Homeostasis model assessment (HOMA) and Quantitative insulin sensitivity check indices (QUICKI) were calculated. Results: Present study showed that 90% of subjects had IR by HOMA and QUICKI.Correlation of FI with HOMA and QUICKI was statistically significant (P < 0.05). FI test had significant sensitivity and specificity when compared with HOMA and QUICKI indices. Validity of FI was further analyzed by Cohen’s kappa test and had good agreement (κ =0.67). Conclusion: FI was sensitive and also specific as HOMA and QUICKI in assessment of IR in obese. Thus, FI can be used as a simple test and feasable tool to detect IR in obese subjects. [AnshuKhatri NJIRM 2016; 7(5):1-4]
ABSTRACT
Background And Objectives: Obesity is increasing worldwide as an epidemic. Recent advances in biology of adipose tissue have revealed that adipose tissue in addition to its role as an energy reservoir, modulates energy metabolism via secretion of circulating adipocytokines. Leptin is one such adipocytokine which is essential for body weight homeostasis. There exists complex interaction of genetic and environmental factors in obesity. Various studies have shown genetic influence of parental fatness in childhood obesity but the effect of parental obesity in adult obesity as well as leptin level is not clear, therefore present study was aimed to determine whether parental obesity might contribute to adult obesity as well as serum leptin levels in obese adults. Material and Methods: Study consisted of forty five obese adults with Body Mass Index≥27 and control group included forty five lean adults with Body Mass Index≤22. Information regarding parental obesity was obtained from each participant in a prestructured questionnaire. Blood samples were collected from both groups and serum leptin levels were measured by Radioimmunoassay. Results: About 62 percent of case group was found to have parental history of obesity. In contrast 29 percent subjects in control group had obese parents. Moreover, the mean of serum leptin levels in obese adults with history of obese parents was significantly higher than obese adults without the history of obese parents (males:19.26±2.69 vs 15.75±2.19,p=0.04 and females: 37.0±7.55 vs26.86±3.72,p =0.02). Conclusion: Parental obesity plays an important role in obesity and serum leptin level during adulthood.