Association analysis between the VDR gene variants and type 2 diabetes.

Area of Science:

• Genetics and Molecular Biology
• Endocrinology and Metabolism

Background:

• Type 2 diabetes mellitus (T2DM) is a global metabolic health challenge.
• Vitamin D receptor (VDR) gene polymorphisms are implicated in T2DM development, but associations remain debated.
• This study examines two VDR gene polymorphisms (rs731236 and rs1544410) in relation to T2DM in an Iranian cohort.

Purpose of the Study:

• To investigate the association between VDR gene polymorphisms (rs731236 and rs1544410) and T2DM in an Iranian population.
• To determine if specific VDR gene variants contribute to T2DM susceptibility in this demographic.

Main Methods:

• Genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis.
• The study included 148 T2DM patients and 100 healthy controls from Iran.

Main Results:

• The frequency of the rs731236 C allele was significantly higher in T2DM patients compared to controls (p=0.044).
• The CC genotype of rs731236 was associated with a 2.85-fold increased risk of T2DM (OR=2.85, p=0.039).
• No significant difference in the rs1544410 C allele frequency was observed between T2DM patients and controls (p=0.918).

Conclusions:

• The rs731236 polymorphism in the VDR gene may represent a risk factor for T2DM in the Iranian population.
• The rs1544410 polymorphism appears to have no significant association with T2DM susceptibility in this cohort.
• Further research across diverse populations is recommended to validate these findings and elucidate underlying mechanisms.