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Association analysis of vitamin D receptor gene polymorphisms in North England population with Type 2 diabetes mellitus Sattar, Naila Abdul; Shaheen, Sumera; Hussain, Fatma & Jamil, Amer Abstract Background: Numerous diabetes susceptibility loci, include a region consisting vitamin D receptor gene found in chromosome 12q, have been known using genome wide screens. Aim: The aim of present study is to probe the relationship between polymorphism of vitamin D receptor gene (single nucleotide polymorphisms) and type 2 diabetes mellitus (T2DM). Five hundred T2DM patients and 200 healthy subjects with normal HbA1c( ≤ 5.0 %), fasting blood sugar (≤ 120 mg/dL) and random blood sugar (≤ 140 mg/dL) were enrolled. Metholodgy: The genotypes were found by polymerase chain reaction restriction fragment length polymorphism and DNA sequencing. Results: revealed that no considerable differences in frequencies of genotype and allele of the Bsm I and Fok I polymorphisms between healthy and patients in the North England (For Fok I: OR = 1.11, 95% CI: 0.72–1.12; for Bsm I: OR = 1.35, 95% CI: 0.79–1.98). Conclusion: It is recommended that both following polymorphisms of vitamin D receptor gene may not considerably add to the progression of T2DM in the North England. Keywords T2DM; DNA Sequencing; Polymerase Chain Reaction-Restriction; Fragment Length Polymorphism (PCR-RFLP); Single nucleotide Polymorphism (SNP); VDR.

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