Vitamin D receptor gene polymorphism in Egyptian multiple sclerosis patients

Area of Science:

• Neuroimmunology
• Genetics
• Endocrinology

Background:

• Multiple Sclerosis (MS) is a prevalent chronic autoimmune demyelinating disease of the central nervous system (CNS).
• Vitamin D deficiency is a significant environmental risk factor for MS, linked to genetic factors influencing vitamin D pathways.
• The vitamin D receptor (VDR) plays a crucial role in mediating vitamin D's biological effects, suggesting its potential involvement in MS pathophysiology.

Purpose of the Study:

• To investigate the association between specific VDR gene polymorphisms (FokI, ApaI, BsmI) and the risk of developing Multiple Sclerosis (MS).
• To determine if variations in VDR genotypes correlate with MS susceptibility in a cohort of patients and controls.

Main Methods:

• Genotyping of VDR gene polymorphisms FokI A>G (rs2228570), ApaI A>C (rs7975232), and BsmI C>T (rs1544410) was performed.
• DNA was extracted from blood samples of 50 relapsing-remitting MS (RRMS) patients and 50 healthy controls.
• Allelic discrimination real-time polymerase chain reaction (PCR) assay was utilized to identify the genotypes.

Main Results:

• No statistically significant differences were observed in the distribution of FokI, ApaI, and BsmI VDR gene polymorphisms between MS patients and the control group.
• The allelic and genotypic frequencies for the studied VDR polymorphisms did not show a correlation with MS.

Conclusions:

• The findings suggest that the investigated VDR gene polymorphisms (FokI, ApaI, BsmI) are not associated with Multiple Sclerosis (MS) in the studied population.
• Further research may be warranted to explore other VDR polymorphisms or different genetic and environmental factors in MS etiology.