1. Assessment of vitamin D status and vitamin D receptor polymorphism in Egyptian children with Type 1 diabetes
- Author
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Eman A. Mostafa, Maha M.A. Abo Hashish, Nagwa Abdallah Ismail, Hasanin M. Hasanin, Rasha M. Hasanin, Aliaa Ahmed Wahby, Ingy Ashmawy, Shereen Hamdy Abd El Aziz, and Mai Magdy Abdel Wahed
- Subjects
Type 1 diabetes mellitus (T1DM) ,Vitamin D receptor (VDR) ,Polymorphism ,Children ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Background: The endocrine system of vitamin D regulates about 3 % of the human genome. Vitamin D exerts its actions via a nuclear vitamin D receptor (VDR) which in turn regulates insulin secretion from the pancreas. VDR gene polymorphisms could have an impact on how autoimmune illnesses like Type 1 diabetes mellitus (T1DM) develop. We aimed to explore the relation between T1DM and VDR gene polymorphisms in Egyptian diabetic children and their siblings. Methods: Enzyme-linked immunosorbent assay was used to quantify 25(OH) vitamin D in the study, which had 179 participants (group 1 = 85 diabetic children, group 2 = 57 siblings of the patients, group 3 = 37 healthy controls). Real-time polymerase chain reaction (RT-PCR) was used to analyze the genotyping of the VDR gene polymorphisms Apa-I (rs7975232), Fok-I (rs2228570), Taq-I (rs731236) and Bsm-I (rs1544410). Results: The mean serum 25(OH) vitamin D levels was significantly lower in T1DM patients (14.99 ± 9.24 ng/mL) and siblings (16.31 ± 7.96 ng/mL) compared to the controls (19.48 ± 7.42 ng/mL) (p = 0.031). The genotypes distribution of VDR Fok-I (rs2228570) and Bsm-I (rs1544410) polymorphisms showed a significant difference between patients, siblings and controls as P = 0.001 and 0.026 respectively, while the VDR ApaI and TaqI polymorphisms did not. FokI-A allele frequency was significantly lower in T1DM patients and siblings than in controls (p
- Published
- 2024
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