ABSTRACT
Background: Hyperhomocystenemia and genetic variants are factors for causing young age stroke glob-ally. This study aims to identify homocysteine related-MTHFR gene polymorphism that associated with recurrent cardiovascular outcomes. Methodology: A randomized controlled trial conducted upon 90 hyperhomocysteinemic ischemic stroke patients were taken from the neurology wards of a tertiary care hospital were randomly selected into vitamin B therapy group and control groups (n=45 in each group). Baseline subject details were col-lected venous blood sample for MTHFR genetic testing via PCR-RFLP technique along with blood homo-cysteine levels, vitamin B12, folic acid levels. Results: The results showed that the frequency of CT genotype polymorphism was 15.5% vs 13.3% for the MTHFR C677T gene without any significant difference between vitamin group and control group re-spectively (p-value >0.05). The reduction in mean homocysteine up to -6.77±4.50 versus -2.08±0.71 μmol/L in the vitamin group as compared to control group respectively, p value 0.001. Conclusion: Considerable amount of MTHFR gene polymorphism found among hyperhomocysteinemic ischemic stroke of sub-Himalayan region. Nutritional deficiencies including vitamin B 12 & folic acid, and some hidden reasons found, which could lead to the primary cause of hyperhomocysteinemia. Vitamin B therapy is an effective for reducing homocysteine.