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Role of adipose tissue GLP-1R expression in metabolic improvement after bariatric surgery in patients with type 2 diabetes
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Role of adipose tissue GLP-1R expression in metabolic improvement after bariatric surgery in patients with type 2 diabetes
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Journal Article
Role of adipose tissue GLP-1R expression in metabolic improvement after bariatric surgery in patients with type 2 diabetes
2019
Overview
We aimed to explore the relationship between GLP-1 receptor (
GLP-1R
) expression in adipose tissue (AT) and incretin secretion, glucose homeostasis and weight loss, in patients with morbid obesity and type 2 diabetes undergoing bariatric surgery. RNA was extracted from subcutaneous (SAT) and visceral (VAT) AT biopsies from 40 patients randomized to metabolic gastric bypass, sleeve gastrectomy or greater curvature plication. Biochemical parameters, fasting plasma insulin, glucagon and area under the curve (AUC) of GLP-1 following a standard meal test were determined before and 1 year after bariatric surgery.
GLP-1R
expression was higher in VAT than in SAT.
GLP-1R
expression in VAT correlated with weight (r = −0.453, p = 0.008), waist circumference (r = −0.494, p = 0.004), plasma insulin (r = −0.466, p = 0.007), and systolic blood pressure (BP) (r = −0.410, p = 0.018). At 1 year,
GLP-1R
expression in VAT was negatively associated with diastolic BP (r = −0.361, p = 0.039) and, following metabolic gastric bypass, with the increase of GLP-1 AUC, (R
2
= 0.46, p = 0.038). Finally,
GLP-1R
in AT was similar independently of diabetes outcomes and was not associated with weight loss after surgery. Thus,
GLP-1R
expression in AT is of limited value to predict incretin response and does not play a role in metabolic outcomes after bariatric surgery.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ Adult
/ Diabetes
/ Diabetes mellitus (non-insulin dependent)
/ Diabetes Mellitus, Type 2 - genetics
/ Diabetes Mellitus, Type 2 - metabolism
/ Diabetes Mellitus, Type 2 - physiopathology
/ Diabetes Mellitus, Type 2 - surgery
/ Fasting
/ Female
/ Glucagon
/ Glucagon-Like Peptide-1 Receptor - genetics
/ Humanities and Social Sciences
/ Humans
/ Insulin
/ Male
/ Obesity, Morbid - metabolism
/ Obesity, Morbid - physiopathology
/ RNA
/ Science
/ Surgery
