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. 2012;7(8):e40977.
doi: 10.1371/journal.pone.0040977. Epub 2012 Aug 20.

Association of the Myostatin gene with obesity, abdominal obesity and low lean body mass and in non-diabetic Asian Indians in north India

Surya Prakash Bhatt  1 , Priyanka Nigam, Anoop Misra, Randeep Guleria, Kalpana Luthra, S K Jain, M A Qadar Pasha
Affiliations

Association of the Myostatin gene with obesity, abdominal obesity and low lean body mass and in non-diabetic Asian Indians in north India

Surya Prakash Bhatt et al. PLoS One. 2012.

Abstract

Background: To determine the association of the A55T and K153R polymorphisms of the Myostatin gene with obesity, abdominal obesity and lean body mass (LBM) in Asian Indians in north India.

Materials and methods: A total of 335 subjects (238 men and 97 women) were assessed for anthropometry, % body fat (BF), LBM and biochemical parameters. Associations of Myostatin gene polymorphisms were evaluated with anthropometric, body composition and biochemical parameters. In A55T polymorphism, BMI (p=0.04), suprailiac skinfold (p=0.05), total skinfold (p=0.008), %BF (p=0.002) and total fat mass (p=0.003) were highest and % LBM (p=0.03) and total LBM (Kg) were lowest (p=0.04) in subjects with Thr/Thr genotype as compared to other genotypes. Association analysis of K153R polymorphism showed that subjects with R/R genotype had significantly higher BMI (p=0.05), waist circumference (p=0.04), %BF (p=0.04) and total fat mass (p=0.03), and lower %LBM (p=0.02) and total LBM [(Kg), (p=0.04)] as compared to other genotypes. Using a multivariate logistic regression model after adjusting for age and sex, subjects with Thr/Thr genotype of A55T showed high risk for high %BF (OR, 3.92, 95% Cl: 2.61-12.41), truncal subcutaneous adiposity (OR, 2.9, 95% Cl: 1.57-6.60)] and low LBM (OR, 0.64, 95% CI: 0.33-0.89) whereas R/R genotype of K153R showed high risk of obesity (BMI; OR, 3.2, 95% CI: 1.2-12.9; %BF, OR, 3.6, 95% CI: 1.04-12.4), abdominal obesity (OR, 2.12, 95% CI: 2.71-14.23) and low LBM (OR, 0.61, 95% CI: 0.29-0.79).

Conclusions/significance: We report that variants of Myostatin gene predispose to obesity, abdominal obesity and low lean body mass in Asian Indians in north India.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Flow diagram explaining the subject recruitment, selection and reasons for exclusion.
Figure 2
Figure 2. Odds Ratios for obesity, abdominal obesity, subcutaneous adiposity and LBM according to Myostatin (A55T & K153R) genotypes.
SCT Obesity, subcutaneous obesity; LBM, lean body mass.
See this image and copyright information in PMC

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