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Clinical Trial Summary

The overall goal of this project is to understand the mechanisms by which gastric bypass surgery improves glucose metabolism. The central hypothesis guiding this project is that the reconfiguration of intestinal transit with the Roux-en-Y will increase the release of insulinotropic GI hormones, termed incretins that improve insulin secretion and glucose metabolism. The study is divided into three specific aims. 1. To determine the role of incretin hormones on insulin secretion in patients with gastric bypass surgery using intravenous-oral hyperglycemic clamp. 2. To compare incretin effect and glucose tolerance among patient who suffer from hypoglycemia after RYGB and asymptomatic surgical and non-surgical individuals. 3. To quantify the contribution of GLP-1 to incretin effect enhancement following surgery.


Clinical Trial Description

The overall goal of this project is to understand the mechanisms by which gastric bypass surgery improves glucose metabolism. The central hypothesis guiding this project is that the reconfiguration of intestinal transit with the Roux-en-Y will increase the release of insulinotropic GI hormones, termed incretins that improve insulin secretion and glucose metabolism. The study is divided into three specific aims. 1. To determine the role of incretin hormones on insulin secretion in patients with gastric bypass surgery using intravenous-oral hyperglycemic clamp. 2. To compare incretin effect and glucose tolerance among patient who suffer from hypoglycemia after RYGB and asymptomatic surgical and non-surgical individuals. 3. To quantify the contribution of GLP-1 to incretin effect enhancement following surgery. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT01803451
Study type Interventional
Source The University of Texas Health Science Center at San Antonio
Contact Marzieh Salehi, MD MS
Phone 210-567-6691
Email salehi@uthscsa.edu
Status Recruiting
Phase Early Phase 1
Start date November 2005
Completion date August 2026

See also
  Status Clinical Trial Phase
Completed NCT00793832 - The Effect of Supervised Exercise on Physical Fitness and Energy Expenditure in Post Bariatric Surgery Patients N/A