Abstract
Background: No trial has examined the effect of lovastatin on the brain metabolites in patients with bipolar mood disorder.
Objectives: Current medications for treating bipolar disorders cause metabolic syndrome. It is supposed that lovastatin not only decreases the rate of metabolic syndrome but also impacts some brain metabolites and their ratio like common treatments that are measured by Magnetic Resonance Spectroscopy. Methods: 27 Manic phase patients were randomly allocated into two groups, lovastatin and placebo as their adjuant medication. Clinical symptoms were assessed at baseline, weeks 2, 4. The brain metabolites were measured at baseline and week 4. Result: Regarding the change of clinical symptoms, no significant difference was found between two groups. However, lovastatin significantly increased the level of NAA in cingulate gyrus in comparison to the placebo group. Moreover, lovastatin more than placebo increased creatine in the left basal ganglia. Furthermore, choline/ creatine showed a significant decrease in the left basal ganglia in lovastatin group. Conclusion: Using MRS after treating with lovastatin showed lovastatin increases NAA in cingulate gyrus, indicating the possible effect of NAA for increasing the reduced viable neuron. Moreover, the increment of Cr by lovastatin in the left basal ganglia suggests the role of lovastatin for maintaining energy homeostasis, anti-apoptotic activity and ATP production in bipolar disorder. Some patents using lovastatin as an adjuant therapy for treating bipolar patients and depression in MDD patients are also outlined. This trial was registered in the Iranian Clinical Trials Registry (http://www.irct.ir/) (IRCT201302203930N18).Keywords: N-Acetyleaspartate, bipolar mood disorder, choline, creatine, lovastatin, Magnetic Resonance Spectroscopy.
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