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Weight loss plays a major role in improving diabetes after obese patients have stomach-reduction surgery, say Duke University Medical Center researchers.

Previous studies have suggested that gastric bypass surgery -- which re-routes how food is sent from the stomach to the small intestine -- helps improve diabetes by causing changes in the way hormones are secreted from the gut and pancreas.

But the metabolic effects shouldn't overshadow the importance of losing weight after surgery, the Duke team said.

Full story http://www.washingtonpost.com/wp-dyn/co ... 01522.html