Gene mutation tied to higher obesity risk in kids

Oct. 24, 2013, HealthDay

Obesity is on the rise among children, and a particular genetic mutation might play a role for some kids, a new study suggests.

Researchers in Britain conducted genetic analyses of more than 2,100 severely obese youngsters. They found that those with mutations in the KSR2 gene had larger appetites and slower metabolism than those with a normal copy of the gene, according to the study published in the Oct. 24 issue of the journal Cell.

“Changes in diet and levels of physical activity underlie the recent increase in obesity; however, some people gain weight more easily than others,” study author Sadaf Farooqi, of the University of Cambridge, noted in a journal news release. “This variation between people is largely influenced by genetic factors. The discovery of a new obesity gene, KSR2, demonstrates that genes can contribute to obesity by reducing metabolic rate — how well the body burns calories.” Continue reading