Vitamin A levels are decreased but not influenced by glucose- or lipid-lowering medications in subjects with type 2 diabetes |
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Authors: | Jalal Taneera Samir Awadallah Abdul Khader Mohammed Hema Unnikannan Nabil Sulaiman |
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Affiliation: | 1. Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates;2. Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates;3. College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates;4. Department of Family and Community Medicine, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates;5. Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia |
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Abstract: | Background and aimType 2 diabetes (T2D) is a complex polygenic disease with unclear mechanisms. Clinical studies on the association of vitamin A with T2D in humans are still controversial. Herein, we aimed to investigate the plasma levels of vitamin A, predictor factors, and its correlations with clinical phenotypes in Emirati population. The effect of glucose-and lipid-lowering medications on vitamin A levels was also studied.MethodsA cross-sectional cohort comprised 158 T2D-subjects and 90 healthy controls were recruited from the United Arab Emirates National Diabetes Study (UAEDIAB). All anthropometric, clinical, and biomedical measurements were collected. Plasma levels of vitamin A were determined using ELISA assay.ResultsLevels of vitamin A were significantly lower in T2D-subjects compared to healthy control (p < 0.01). Vitamin A levels were unaffected by gender base and inversely correlated with age, fasting blood glucose (FBG), glycated hemoglobin (HbA1c), waist circumference, triglycerides, and body mass index (BMI). Regression analysis revealed that HbA1c and age are predictors for vitamin A. Intake of glucose- or lipid-lowering medications showed no effect on vitamin A levels.ConclusionHbA1c and age are predictors for low levels of vitamin A among Emirati-T2D subjects. No influence of glucose and lipid-lowering medications on the plasma levels of vitamin A. |
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Keywords: | Type 2 diabetes Vitamin A Insulin HbA1c Body mass index |
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