A gene that makes people vulnerable to obesity also produces a protein that may directly modify DNA in a region of the brain known to control food intake. The unexpected finding sheds light on how gene variants can predispose individuals to obesity, say scientists. , analysis of blood samples from nearly 40,000 individuals linked certain variants of a gene called FTO with a 70% increased risk of obesity. Those people who carried two defective copies of the FTO gene were 3 kilograms heavier on average than their counterparts with normal versions of the gene. The biological function of the FTO...
photo: Wn/ james
