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GLP-1 Not As Effective after Roux-en-Y Gastric Bypass

Researchers compared glucose and hormonal responses to a liquid meal test in 20 obese participants with T2 who underwent RYGB or nonsurgical intensive lifestyle modification… Rapid glycemic improvements following Roux-en-Y gastric bypass (RYGB) are frequently attributed to the enhanced GLP-1 response, but causality remains unclear. To determine the role of …

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Handbook of Diabetes, 4th Ed., Excerpt #22: Gastrointestinal Problems in Diabetes


Rudy Bilous, MD, FRCP Richard Donnelly, MD, PHD, FRCP, FRACP Disordered gastrointestinal motor function occurs in both type 1 and type 2 diabetes and can result in symptoms of nausea, vomiting, diarrhea or constipation, malnutrition, poor glycemic control and delayed absorption of orally administered drugs (Figure 23.1). Gustatory sweating, typically affecting the …

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