Journal of Clinical and Diagnostic Research (Oct 2014)

Evaluation of Usefulness of Serum Insulin as Sensitive Predictor of Cardiovascular Dysfunction in Obese Individuals with Normal Lipid Profile

  • Amruta A. Bakshi,
  • Jayashree S. Bavikar,
  • Shilpa B. Asegaonkar,
  • Jayashree S. Bardapurkar,
  • Vijay Domple,
  • Pooja SK Rai,
  • Smita Pawar

DOI
https://doi.org/10.7860/JCDR/2014/9759.4980
Journal volume & issue
Vol. 8, no. 10
pp. CC10 – CC12

Abstract

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Background: Prevalence of obesity and its subsequent cardiometabolic complications is on exponential rise. Hyperinsulinemia develops in obese individuals long before other metabolic derangements of obesity take place and may be a common pathophysiological factor tying together various components of cardiometabolic dysfunction. Aim: Present study was aimed at evaluating the role of insulin as a sensitive and independent cardiovascular risk marker in apparently healthy overweight and obese individuals with normal lipid profile. Settings and design: This was an opd based case Control study including 100 overweight and obese individuals with normal lipid profile & 100 age and sex matched normal weight healthy controls. Materials and Methods: Participants were evaluated based on detailed history, clinical examination and laboratory investigations. Blood samples were collected after overnight fast. Serum insulin was estimated by chemiluminescence method, glucose and lipid profile (CHOLESTEROL, HDL, TG, LDL) by chemical assays on a fully automated analyser system. Statistical analysis: Results were analyzed by unpaired t-test, p-value was determined & Correlation coefficient was calculated amongst various parameters. Results: Significant difference was noted in mean values of BMI (29.69±1.28 VS 23.47±1.09), waist / hip ratio (0.91±0.07 VS 0.79±0.05) and serum insulin (10.54±2.5 VS 5.94±1.53) (p<0.01) in cases as compared to controls respectively. Glucose levels were high in cases (89.58±8.0 mg/dl) as compared to controls (88.8±7.56 mg/dl) but the difference was statistically insignificant (p=0.11). Hyperinsulinemia was observed in 41 cases & 4 controls. Serum insulin highly correlated with Waist/ hip ratio (R=0.53) than BMI (R=0.26). Conclusion: Study suggests Insulin; a simple, sensitive & independent cardiovascular risk predictor in obesity even with normal lipid profile with a potential to reveal hidden burden of metabolic dysfunction and offers a hope that, cardiovascular event can be well prevented with appropriate interventions.

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