NDLI: Reduced cerebrospinal fluid ethanolamine concentration in major depressive disorder

Content Provider	PubMed Central
Author	Ogawa, Shintaro Hattori, Kotaro Sasayama, Daimei Yokota, Yuki Matsumura, Ryo Matsuo, Junko Ota, Miho Hori, Hiroaki Teraishi, Toshiya Yoshida, Sumiko Noda, Takamasa Ohashi, Yoshiaki Sato, Hajime Higuchi, Teruhiko Motohashi, Nobutaka Hiroshi, Kunugi
Copyright Year	2015
Abstract	Amino acids play key roles in the function of the central nervous system, and their alterations are implicated in psychiatric disorders. In the search for a biomarker for major depressive disorder (MDD), we used high-performance liquid chromatography to measure amino acids and related molecules in the cerebrospinal fluid (CSF) of 52 patients with MDD (42 depressed and 10 remitted; DSM-IV) and 54 matched controls. Significant differences were found in four amino acid concentrations between the depressed patients and controls. After Bonferroni correction, only ethanolamine (EA) levels remained significantly reduced in depressed patients (nominal P = 0.0000011). A substantial proportion of the depressed patients (40.5%) showed abnormally low CSF EA levels (<12.1 μM) (P = 0.000033; OR = 11.6, 95% CI: 3.1–43.2). When patients with low EA and those with high EA levels were compared, the former had higher scores for overall depression severity (P = 0.0033) and ‘Somatic Anxiety’ symptoms (P = 0.00026). In unmedicated subjects, CSF EA levels showed a significant positive correlation with levels of homovanillic acid (P = 0.0030) and 5-hydroxyindoleacetic acid (P = 0.019). To our knowledge, this is the first study showing that patients with MDD have significantly lower CSF EA concentrations compared with control subjects. CSF EA could be a state-dependent biomarker for a subtype of MDD.
Related Links	http://dx.doi.org/10.1038/srep07796
Starting Page	7796
File Format	PDF
ISSN	20452322
e-ISSN	20452322
Journal	Scientific Reports
Volume Number	5
Language	English
Publisher	Nature Publishing Group
Publisher Date	2015-01-01
Access Restriction	Open
Rights Holder	Nature Publishing Group
Subject Keyword	Science and technology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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