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Obesity Surgery
Published in: Obesity Surgery 11/2016

01-11-2016 | Original Contributions

Long-Term Outcomes of Biliopancreatic Diversion on Glycemic Control, Insulin Sensitivity and Beta Cell Function

Authors: Ana Carolina Junqueira Vasques, José Carlos Pareja, Maria da Saúde de Oliveira, Fernanda Satake Novaes, Marcelo Miranda Oliveira Lima, Élinton A. Chaim, Francesca Piccinini, Chiara Dalla Man, Claudio Cobelli, Bruno Geloneze

Published in: Obesity Surgery | Issue 11/2016

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Abstract

Background

We aimed to assess the long-term outcomes of biliopancreatic diversion (BPD) surgery on glycemic control, insulin sensitivity (IS), and beta cell function using complementary oral and intravenous dynamic tests.

Methods

A total of 57 women were divided into three groups: 19 lean, 18 obese (both groups with normal glucose tolerance (NGT)), and 20 obese with type 2 diabetes who underwent BPD and were reassessed 12 months after the procedure. OGTTs and hyperglycemic clamps (HG) were performed. Mathematical modeling was used to analyze IS, beta cell function, and delayed time of beta cell response. The basal, dynamic (first phase/steps of insulin secretion), and static (second phase/steps of insulin secretion) disposition indexes were calculated.

Results

After surgery, the patients exhibited improvements in glycemic control and 15 patients achieved diabetes remission. The surgical patients demonstrated normalized IS in OGGT and HG tests compared to the control groups. The basal beta cell function was improved but remained impaired compared to the Lean NGT group. The stimulated beta cell function parameters showed marked improvements regarding the intravenous stimulus and the second phase/distal steps of insulin secretion. The delay time markedly decreased and became normalized in both dynamic tests.

Conclusions

The common physiopathology features of type 2 diabetes, i.e., impaired IS and beta cell dysfunction, were demonstrated to be primarily functional and were likely to be reversible to some degree after the BPD. The marked long-term improvement in glycemic control after BPD was closely related to IS improvement and mainly by the recovery of several beta cell physiological features.
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Metadata
Title
Long-Term Outcomes of Biliopancreatic Diversion on Glycemic Control, Insulin Sensitivity and Beta Cell Function
Authors
Ana Carolina Junqueira Vasques
José Carlos Pareja
Maria da Saúde de Oliveira
Fernanda Satake Novaes
Marcelo Miranda Oliveira Lima
Élinton A. Chaim
Francesca Piccinini
Chiara Dalla Man
Claudio Cobelli
Bruno Geloneze
Publication date
01-11-2016
Publisher
Springer US
Published in
Obesity Surgery / Issue 11/2016
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-016-2159-3

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