The association of calcium channel blockers with β-cell function in type 2 diabetic patients: A cross-sectional study.
Type 2 diabetes mellitus (T2DM) patients are often accompanied with hypertension. However, the association of antihypertensive drugs with β-cell function has not been well studied. To investigate this question, the authors performed a cross-sectional study involving 882 hypertensive T2DM patients. To assess β-cell function, patients were given 75g glucose orally and C-peptide levels before and 1, 2, and 3 hours after glucose intake were measured. Homa-β was computed by Homeostasis Model Assessment model to evaluate β-cell function using fasting C-peptide and glucose levels in the plasma. Multivariable-adjusted analysis was performed to evaluate the association of antihypertensive drugs with C-peptide levels, HbA1c, and Homa-β. Among 882 hypertensive patients, 547 (62.0%) received antihypertensive treatment. Multivariate-adjusted analysis demonstrated that use of calcium channel blockers (CCBs) was negatively associated with HbA1c levels (CCBs: 0.95 [95% CI: 0.92-0.98], P = 0.002). Our data further illustrated that the C-peptide levels before and 1, 2, and 3 hours of OGTT were 1.10-, 1.18-, 1.19-, and 1.15-fold increase in T2DM patients taking CCBs (P = 0.084 for fasting C-peptide levels; P ≤ 0.024 for C-peptide levels at 1, 2, and 3 hours after OGTT) in comparison with non-CCB users. Nevertheless, usage of any other antihypertensive drugs did neither associated with HbA1c nor associated with C-peptide levels (P ≥ 0.11). In conclusion, CCB treatment was negatively associated with HbA1c levels but positively associated with β-cell function in hypertensive T2DM patients, implying that CCBs could be considered to treat hypertensive T2DM patients with reduced β-cell function.
['Zhao|Dong|D|', 'Cao|Yu|Y|', 'Yu|Cai-Guo|CG|', 'Yuan|Sha-Sha|SS|', 'Zhang|Ning|N|', 'Zhang|Yuan-Yuan|YY|', 'Staessen|Jan A|JA|', 'Feng|Ying-Mei|YM|0000-0001-5248-0155']
D000328:Adult D000368:Aged D000959:Antihypertensive Agents D001786:Blood Glucose D002096:C-Peptide D002121:Calcium Channel Blockers D003430:Cross-Sectional Studies D003924:Diabetes Mellitus, Type 2 D005215:Fasting D005260:Female D006442:Glycated Hemoglobin A D006801:Humans D006973:Hypertension D050417:Insulin-Secreting Cells D008297:Male D008875:Middle Aged
calcium channel blocker β-cell function type 2 diabetes mellitus hypertension inhibitor of renin-angiotensin-aldosterone system