1266-PUB: Correlation of Sex Hormones Levels and Glycated Hemoglobin in Nondiabetic Middle-Aged and Elderly
Diabetes(2021)
Abstract
Aims: Sex hormones are strongly linked to the occurrence and development of diabetes, and influence glycated hemoglobin (HbA1c) levels in diabetic population; but, the relationship between sex hormones and HbA1c in nondiabetic population remains unknown. This study aimed to explore the extent of influence of sex hormones on HbA1c levels in nondiabetic population. Methods: A total of 1409 nondiabetic subjects, including 601 men and 808 postmenopausal women were recruited from Shanghai community. HbA1c was detected using high performance liquid chromatography, and hemoglobin level was determined by sodium lauryl sulfate colorimetry. Serum estradiol (E2), total testosterone (TT), and sex hormone binding globulin (SHBG) were measured by chemiluminescent microparticle immunoassays. Results: The level of HbA1c was 5.6 (5.4-5.9) % in all subjects, with 5.6 (5.4-5.8) % in men and 5.7 (5.5-5.9) % in postmenopausal women. After adjusting for age, body mass index (BMI), and hemoglobin, E2 was positively correlated with HbA1c in men (r = 0.122, P = 0.003), and SHBG was inversely correlated with HbA1c (r = -0.125, P < 0.001) in women. Other hormones were not correlated with HbA1c (all P > 0.05). Multivariate linear regression analysis showed that, except for traditional factors, such as age, hemoglobin, and BMI, E2 was another determinant of HbA1c (standardized β = 0.137, P = 0.003) in men and the regression equation was HbA1c (%) = 0.001×E2 (pmol/ L) +5.465. In women, SHBG was another determinant of HbA1c (standardized β = -0.178, P < 0.001), except for age and systolic blood pressure (SBP), and the regression equation was HbA1c (%) = -0.002×SHBG (nmol)/L) +5.772. Conclusion: After controlling for confounding factors, E2 is positively correlated with HbA1c in men, and SHBG is inversely correlated with HbA1c in postmenopausal women. Sex hormones influence HbA1c levels in nondiabetic population, but it is very limited to affect the level of HbA1c in the diagnose of diabetes. Disclosure Y. Bao: None. Y. Xu: None. W. Cao: None. Y. Shen: None. J. Tang: None. Y. Wang: None. X. Ma: None.
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Key words
sex hormones levels,glycated hemoglobin,elderly,middle-aged
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