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Folate and vitamin B12 reduce disabling schizophrenia symptoms in some patients
Date:3/6/2013

Adding the dietary supplements folate and vitamin B12 to treatment with antipsychotic medication improved a core symptom component of schizophrenia in a study of more than 100 patients. The study focused on negative symptoms of schizophrenia which include apathy, social withdrawal, and a lack of emotional expressiveness. While the level of improvement across all participants was modest, results were more significant in individuals carrying specific variants in genes involved with folate metabolism. The report from a team based at Massachusetts General Hospital (MGH) will appear in the journal JAMA Psychiatry (formerly Archives of General Psychiatry) and has been issued online.

"The symptoms of schizophrenia are complex, and antipsychotic medications provide no relief for some of the most disabling parts of the illness. These include negative symptoms, which can be particularly devastating," says Joshua Roffman, MD, MMSc, of the MGH Department of Psychiatry, corresponding author of the JAMA Psychiatry paper. "Our finding that folate plus vitamin B12 supplementation can improve negative symptoms opens a new potential avenue for treatment of schizophrenia. Because treatment effects differed based on which genetic variants were present in each participant, the results also support a personalized medical approach to treating schizophrenia."

An essential nutrient, folate (or folic acid) is required for the synthesis of DNA and neurotransmitters and plays a role in the control of gene expression. Adequate folate intake during pregnancy can reduce the risk of birth defects in particular neural tube defects and studies have suggested that folate deficiency during pregnancy significantly increases the risk of schizophrenia among offspring. Earlier research by members of the MGH-based team associated low blood folate levels with more severe negative symptoms among patients with schizophrenia.

The current study was desi
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Contact: Kristen Stanton
kstanton3@partners.org
617-643-3907
Massachusetts General Hospital
Source:Eurekalert

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