Journal
PSYCHIATRY RESEARCH
Volume 215, Issue 3, Pages 560-567Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.psychres.2013.12.022
Keywords
Bipolar disorder; Schizophrenia; Major depressive disorder; Multiple sclerosis; Lithium; Valproic acid
Categories
Funding
- National Institute of Mental Health Grants [MH073704, MH074858]
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This study investigated the fatty acid composition of the postmortem superior temporal gyrus (STG), a cortical region implicated in emotional processing, from normal controls (n=15) and patients with bipolar disorder (BD, n=15), major depressive disorder (MDD, n=15), and schizophrenia (SZ, n=15). For comparative purposes, STG fatty acid composition was determined in a separate cohort of multiple sclerosis patients (MS, n=15) and normal controls (n=15). Compared with controls, patients with BD, but not MDD or SZ, exhibited abnormal elevations in the saturated fatty acids (SFA) palmitic acid (16:0), stearic acid (18:0), the polyunsaturated fatty acids (PUPA) linoleic acid (18:2n-6), arachidonic acid (20:4n-6), and docosahexaenoic acid (22:6n-3), and reductions in the monounsaturated fatty acid (MUFA) oleic acid (18:1n-9). The total MUFA/SFA and 18:1/18:0 ratios were lower in the STG of BD patients and were inversely correlated with total PUFA composition. MS patients exhibited a pattern of fatty acid abnormalities similar to that observed in BD patients including elevated PUPA and a lower 18:1/18:0 ratio. Collectively, these data demonstrate that BD patients exhibit a pattern of fatty acid abnormalities in the STG that is not observed in MOD and SZ patients and closely resembles MS patients. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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