LINK TO RESEARCH
https://pubmed.ncbi.nlm.nih.gov/14708034/
ABSTRACT
Objective: This study investigated (1) the effect of octreotide-LAR (Sandostatin-LAR Depot; Novartis) on the enteroinsular axis in a biracial cohort of severely obese adults, (2) whether octreotide suppression of insulin secretion occurs by both a direct beta-cell effect and through mediating a glucagon-like peptide 1 (GLP-1) response, and (3) whether differences in GLP-1 concentrations could explain racial differences in insulin concentrations.
Design: Prospective, open-label trial using a pre-post test design.
Setting: Single university, clinical research center.
Subjects: In all, 42 healthy, severely obese Caucasian and African-American (AA) adults (93% female, 64% Caucasian, age=37.8+/-1.2 y, weight=123+/-4.2 kg, BMI=44.5+/-1 kg/m(2)), recruited through physician referral and newspaper ads, participated in the study.
Interventions: Indices of beta-cell activity, insulin and GLP-1 response before and during a 75-gm oral glucose tolerance test were determined before and after 24 weeks of octreotide-LAR.
Results: AA exhibited higher beta-cell activity, and insulin and GLP-1 oncentrations than Caucasians. Octreotide-LAR suppressed the insulin and GLP-1 levels in both groups.
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