Type 2 Diabetes Remission After Roux-en-Y Gastric Bypass: Evidence for Increased Expression of Jejunal Genes Encoding Regenerating Pancreatic Islet-Derived Proteins as a Potential Mechanism.
Obes Surg 2017;
27:1123-1127. [PMID:
28213664 DOI:
10.1007/s11695-017-2602-0]
[Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND
Intestinal expression of regenerating pancreatic islet-derived protein-encoding genes (REG) would be enhanced after Roux-en-Y gastric bypass (RYGB) and would affect postoperative type 2 diabetes remission (T2Dr).
METHODS
Intestinal biopsy samples were collected from 20 adult obese women with T2D before and 3 months after RYGB. Levels of REG expression and the gene encoding its putative receptor (EXTL3) were assessed by microarray and validated by quantitative RT-PCR. T2Dr was assessed according to ADA criteria 1 year after RYGB.
RESULTS
After RYGB, only patients with T2Dr had significantly increased REG1α and REG3γ expression in the jejunum, as validated by quantitative RT-PCR.
CONCLUSIONS
Our data provide support for the hypothesis that increased jejunal expression of REG genes after RYGB affects T2Dr, possibly by playing an endocrine function.
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