5/3/2013 7:28:40 AM
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More than one-third of adults in the United States are obese, and some of these individuals undergo gastric bypass surgery to shed the extra pounds. A genome-wide association study published by Cell Press May 2nd in The American Journal of Human Genetics reveals that the amount of weight loss after this surgery can be predicted in part by a DNA sequence variation found on chromosome 15. The findings explain why the success of gastric bypass surgery varies so widely and could help clinicians identify those who would benefit the most from this type of surgery.
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