Effects of Roux-en-Y gastric bypass on insulin secretion and sensitivity, glucose homeostasis, and diabetic control: A prospective cohort study in Chinese patients.

Mazidi, Mohsen; Gao, Hong-Kai; Li, Liang; Hui, Han · Surgery · 2017

prospective_cohort · Level II

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Abstract

To report on the effects of Roux-en-Y gastric bypass operation for obesity on measures of adiposity, insulin secretion and sensitivity, glucose homeostasis, and improvement in diabetic control in Chinese patients. This was a prospective cohort study of 152 participants (81% with diabetes) who were recruited for bariatric operation. Mean body mass index was decreased by 18.1% from 30.31 ± 5.38 kg/m<sup>2</sup> at baseline to 24.45 ± 3.79 kg/m<sup>2</sup> at 2 years (P < .001). Indices of insulin secretion, including serum c-peptide (both fasted and at various time points during an oral glucose tolerance test) improved at the 3-year follow-up, with a significant improvement in insulin sensitivity and glucose homeostasis. The effects of Roux-en-Y gastric bypass 3 years postoperative on adiposity were paralleled by a significant improvement in insulin secretion and sensitivity, and glucose tolerance.

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