Indian Journal of Medical Research

REVIEW ARTICLE
Year
: 2014  |  Volume : 140  |  Issue : 5  |  Page : 589--603

Genetic & epigenetic approach to human obesity


K Rajender Rao, Nirupama Lal, NV Giridharan 
 National Center for Laboratory Animal Sciences & National Institute of Nutrition (ICMR), Hyderabad, India

Correspondence Address:
N V Giridharan
National Center for Laboratory Animal Sciences (NCLAS), National Institute of Nutrition (ICMR) Hyderabad 500 008, Telangana
India

Obesity is an important clinical and public health challenge, epitomized by excess adipose tissue accumulation resulting from an imbalance in energy intake and energy expenditure. It is a forerunner for a variety of other diseases such as type-2-diabetes (T2D), cardiovascular diseases, some types of cancer, stroke, hyperlipidaemia and can be fatal leading to premature death. Obesity is highly heritable and arises from the interplay of multiple genes and environmental factors. Recent advancements in Genome-wide association studies (GWAS) have shown important steps towards identifying genetic risks and identification of genetic markers for lifestyle diseases, especially for a metabolic disorder like obesity. According to the 12 th u0 pdate of Human Obesity Gene Map there are 253 quantity trait loci (QTL) for obesity related phenotypes from 61 genome wide scan studies. Contribution of genetic propensity of individual ethnic and racial variations in obesity is an active area of research. Further, understanding its complexity as to how these variations could influence ones susceptibility to become or remain obese will lead us to a greater understanding of how obesity occurs and hopefully, how to prevent and treat this condition. In this review, various strategies adapted for such an analysis based on the recent advances in genome wide and functional variations in human obesity are discussed.


How to cite this article:
Rao K R, Lal N, Giridharan N V. Genetic & epigenetic approach to human obesity.Indian J Med Res 2014;140:589-603


How to cite this URL:
Rao K R, Lal N, Giridharan N V. Genetic & epigenetic approach to human obesity. Indian J Med Res [serial online] 2014 [cited 2020 Oct 22 ];140:589-603
Available from: https://www.ijmr.org.in/article.asp?issn=0971-5916;year=2014;volume=140;issue=5;spage=589;epage=603;aulast=Rao;type=0