Stories about: gastric bypass

Can we bypass the bypass to treat diabetes?

Diagram of Roux-en-Y gastric bypass
Gastric bypass surgery creates a small pouch in the stomach and connects it directly to the small intestine. Why does it help type 2 diabetes? (Wikimedia Commons)

Research shows that gastric bypass surgery, aside from inducing weight loss, resolves type 2 diabetes. Though weight loss and improved diabetes often go hand-in-hand, patients who undergo gastric bypass usually end up seeing an improvement in their type 2 diabetes even before they lose weight.

But why? To investigate, a research team led by Nicholas Stylopoulos, MD, of Boston Children’s Hospital’s Division of Endocrinology, spent a year studying rats and observed that after gastric bypass surgery, the way in which the small intestine processes glucose changes. They saw the intestine using and disposing of glucose, and showed that it thereby regulates blood glucose levels in the rest of the body, helping to resolve type 2 diabetes.

Basically, as the team reported recently in Science, the small intestine—widely believed to be a passive organ—is actually a major contributor to the body’s metabolism.

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