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  • Title: Evaluate the Effect of Valproate Monotherapy on the Serum Homocysteine, Folate and Vitamin B12 Levels in Epileptic Children.
    Author: Sharma TK, Vardey SK, Sitaraman S.
    Journal: Clin Lab; 2015; 61(8):933-40. PubMed ID: 26427136.
    Abstract:
    BACKGROUND: The data regarding Valproate and its influence on serum folate and homocysteine levels are conflicting. The aim of this study was to evaluate whether differences exist in homocysteine, folate, and vitamin B12 levels in children receiving Valproate. METHODS: A total of 55 newly diagnosed epileptic children with ages ranging from 2 to 15 years were enrolled at the start of study but after 3 months follow up, the total sample size finally was only 50 epileptic children. 5 children dropped out of study due to poor follow up. 50 age and gender matched healthy control subjects were also studied on enrollment at the start of study. Serum homocysteine levels were analyzed by enzyme immunoassay method using the kits provided by Axis-Shield Diagnostics Ltd (Dundee DD2 1XA, United Kingdom). Serum folate and serum vitamin B12 were estimated by Competitive Chemiluminescent Enzyme Immunoassay method. RESULTS: The serum homocysteine level in epileptic children was found to be significantly increased after Valproate monotherapy as compared to before therapy. Moreover, a highly significant decrease was observed in the levels of serum folate in epileptic children after Valproate monotherapy as compared to before therapy. But a non significant difference was observed in serum vitamin B12 levels in epileptic children before and after Valproate monotherapy. CONCLUSIONS: Thus, we conclude that there is a significant increase in the levels of homocysteine and a significant decrease in the concentration of serum folate while vitamin B12 decreases non-significantly after Valproate monotherapy. The atherogenic effect of increased serum homocysteine level is well established; the patients under Valproate monotherapy should be monitored for possible atherogenic effects. Considering the above observation and results of children undergoing Valproate monotherapy, these children should be screened for levels of serum homocysteine, folate, and vitamin B12 and treated when their levels are found to be disturbed.
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