Beta blockers, which many people with diabetes take to control high blood pressure, may be one of the reasons why type 2s often tend to gain and keep weight. That's the conclusion of a study from St. Vincent's Hospital in Sydney, Australia.
As we wrote back in 2008, the EndoBarrier is a very clever way to simulate the effect of a gastric bypass without the unpleasant scalpel part. It looks like a long clear plastic stocking, and it's simply threaded through the patient's mouth and stomach, down to the small intestine, where it lines the intestine's upper section (the same part that is bypassed in traditional surgery). Food slips right through it, but digestive enzymes are trapped on its other side. The two don't get to join forces until a couple of feet further downstream, so the effect on diabetes is a lot like that of a bypass: It resolves the symptoms of type 2 diabetes.
Evolution works in strange ways. What serves as an advantage at one point in time can sometimes prove a problem later, when the world has changed. It looks like that might be the case with type 2 diabetes, according to researchers from San Diego, California.