Androgen receptor CAG repeat polymorphism is not associated with insulin resistance and diabetes among South Asian males

BMC Research Notes

Priyanga Ranasinghe¹  Surani Jayawickrama²  Lasantha S. Malavige³  Jonathan C. Levy³ 

[1] Department of Pharmacology, Faculty of Medicine, University of Colombo;Ministry of Health Care and Nutrition;Nuffield Department of Clinical Medicine, University of Oxford;

关键词: Androgen receptor;    CAG repeats;    Polymorphism;    Diabetes;    South Asian;   

DOI  :  10.1186/s13104-017-3035-5

来源: DOAJ

【 摘 要 】

Abstract Objective To study relationship between androgen receptor (AR) CAG repeat polymorphism, insulin resistance (IR), β-cell function and other clinical/biochemical parameters in ethnic South Asian adults. A case (males with diabetes), control (males without diabetes) study, was conducted and 110 males were invited. Anthropometry, blood pressure and biochemical parameters (fasting Insulin, blood sugar, HbA1c and lipid profile) were measured. IR and β-cell function was calculated. A multiple-linear-regression analysis was performed, using number of AR CAG repeats as the continuous dependent variable. Results Sample size was 100 (response rate—90.9%, cases—53). Mean age was 49.6 ± 10.7 years. CAG repeat length did not show any significant correlation with IR or β-cell function. In all males there was a significant correlation between number of AR CAG repeats and systolic blood pressure (r = 0.25; p = 0.016), diastolic blood pressure (r = 0.21; p = 0.045), total cholesterol (r = − 0.22; p = 0.037) and low-density lipoprotein cholesterol (r = − 0.22; p = 0.037). Only total cholesterol (β = − 4.41; p < 0.001) and estrogen (β = 2.25; p = 0.03) were significantly associated with number of AR CAG repeats in regression analysis. In conclusion, AR CAG repeat length did not show any significant correlation with IR or β-cell function. Positive association of AR CAG with systolic and diastolic blood pressure and negative association of AR CAG with total and low-density lipoprotein cholesterol deserves further attention.

【 授权许可】

Unknown