Effect of Acarbose on Postmeal Mononuclear Blood Cell Response in Patients with Early Type 2 Diabetes: The AI(I)DA Study

Abstract

So far little is known about how the antidiabetic drugs acting at the level of gastrointestinal mucosa may affect immune and cellular response to food intake. The following study investigated the association between acarbose treatment and postprandial metabolism, immune- and inflammatory activity in patients with early type 2 diabetes: The Acarbose action on low grade Inflammation and Immune response in type 2 Diabetes on Atherosclerosis risk (AIIDA) study. Middle-aged patients (n=87) with early type 2 diabetes (2 h-plasma-glucose ≥11.1 mmol/l and/or HbA1c ≥6.5%) and sub-clinical inflammation (leucocytes ≥6.2 GPt/l and/or hsCRP ≥1.0 mg/l) underwent a mixed meal load (527 kcal). Metabolic parameters and markers of subclinical inflammation were measured at fasting (0′), 2 h-postprandial (2-hpp) and 4-hpp before and after 20 weeks of treatment with acarbose or placebo. Leukocytes and lymphocytes excursion after 20 weeks of treatment was significantly reduced with acarbose 4 h after testmeal [GPt/l] (7.5 vs. 7; p<0.05; and 2.29 vs. 2.14; p<0.05, respectively). Acarbose had only marginal effects on pp glucose, FFA, triglycerides, and insulin excursion. Biomarkers of inflammation (hsCRP, MBL, and PAI1) were not affected by acarbose. Multivariate analysis reveals only baseline leukocytes and of acarbose as independent determinant of 4-h leucocytes excursion. Postprandial metabolic and inflammatory parameters were strongly interrelated. These results suggest pleiotropic effects of acarbose, which may contribute to its vasoprotective potentials.

Key words

diabetes mellitus type 2 - acarbose - postmeal leukocyte excursion - postmeal adipokine excursion

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