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J Psychopharmacol. 2007 Jun;21(4):435-9. Epub 2006 Aug 4.

Preliminary in vivo evidence of increased N-acetyl-aspartate following eicosapentanoic acid treatment in patients with bipolar disorder.

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1
Section of Neurobiology of Psychosis, Institute of Psychiatry, Kings College London, London, UK. s.frangou@iop.kcL.ac.uk

Abstract

Ethyl-eicosapentanoic acid (ethyl-EPA) may be beneficial in the treatment of bipolar disorder (BD) and may have a neurotrophic/neuroprotective role in patients with neuropsychiatric disorders. To investigate this we examined whether ethyl-EPA treatment of BD patients is associated with increased brain levels of N-acetylaspartate (NAA), a putative marker of neuronal integrity. Fourteen female BD outpatients with moderate depressive symptoms were administered 2 g of ethyl-EPA per day or placebo for 12 weeks in a randomized, double-blind fashion. Quantitative, proton magnetic resonance spectroscopy imaging data were obtained prior to randomization and after 12 weeks of treatment from a single 12 ml volume of interest centred above the body of the corpus callosum. A significant rise in NAA levels was observed in the ethyl-EPA treatment group compared with the placebo group (p = 0.027). These results provide the first evidence for a probable neurotrophic role of ethyl-EPA treatment in BD underlining the need for more detailed investigation of its mechanism of action and therapeutic potential.

PMID:
16891338
DOI:
10.1177/0269881106067787
[Indexed for MEDLINE]

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