Predictors of Glucagon-Like Peptide-1 Responses following OGTT in Treatment-Naive Type 2 Diabetes Mellitus among Three Ethnic Groups in Malaysia
DIABETES(2023)
摘要
Introduction: Predictors of glucagon-like peptide-1 (GLP-1) responses following OGTT in treatment-naïve type 2 diabetes mellitus (T2DM) have not been fully elucidated. In this respect, we aim to investigate the various predictors of GLP-1 responses following OGTT in treatment-naïve T2DM. Aim: To assess the clinical and biochemical predictors of GLP-1 responses following OGTT in treatment-naïve T2DM among three ethnic groups in Malaysia. Methods : Thirty-one treatment-naive T2DM subjects underwent a 75-g OGTT. Total GLP-1 concentrations were measured at 0, 30 and 120 min. By using area under the curve (AUC) for GLP-1 (AUCGLP-1) as an index of GLP-1 secretory response, predictors of GLP-1 responses following OGTT were assessed using multiple linear regression analysis. Results: Majority of the treatment-naïve T2DM patients were newly-diagnosed (n=28, 96.6%). The GLP-1 levels at 0, 30- and 120-min were 25.59 ± 10.87 pmol/L, 46.86 ± 18.36 pmol/L and 27.02 ± 13.37 pmol/L respectively. There was a positive correlation between increasing age and AUCGLP-1 (Β = 8.55, p<0.001). Male had higher GLP-1 response to OGTT than female (Β = -303.04, p<0.001). The Indian ethnicity exhibited higher GLP-1 secretion than the Malays (Β = 244.17, p<0.001). Fasting insulin was positively correlated with AUCGLP-1 (Β = 8.73, p=0.001). AUCGLP-1 was positively correlated with increased systolic blood pressure (Β = 3.65, p=0.03), total cholesterol (Β = 174.32, p=0.004) and LDL-cholesterol (Β = 202.35, p=0.002). Conclusions: Older age, male and Indian ethnicity were independent predictors of GLP-1 responses following OGTT in treatment-naïve T2DM. The positive correlation between risk factors associated with insulin resistance and GLP-1 suggested that these risk factors are responsible for driving GLP-1 secretion. Disclosure S.Chong: None. N.Sukor: None. S.A.Robert: None. K.Ng: None. N.A.Kamaruddin: Advisory Panel; Zuellig Pharma Holdings Pte. Ltd., Other Relationship; American Association of Clinical Endocrinologists, Speaker's Bureau; AstraZeneca, Boehringer-Ingelheim, Eli Lilly and Company, Merck Sharp & Dohme Corp., Novo Nordisk. Funding National University of Malaysia (GUP-2017-066); Malaysian Endocrine & Metabolic Society (L12-MEMS6)
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关键词
diabetes mellitus,ogtt,glucagon-like
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