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Increased serum neurotrophin-4/5 levels in bipolar disorder.

Abstract
Neurotrophins are central to several aspects of central nervous system function, and emerging evidence links these growth factors to mood disorders. The purpose of this study was to investigate serum neurotrophin-4/5 (NT-4/5) levels in patients with bipolar disorder, both within mood episodes and in euthymia. Patients with bipolar I disorder (n=154) and controls (n=30) had their NT-4/5 serum levels assayed using an ELISA. Levels of NT-4/5 levels were significantly higher in bipolar disorder patients than in controls; NT-4/5 levels were increased in mania, depression and euthymia, but not significantly different between BD mood states. As far as are aware, this is the first study showing NT-4/5 immunocontent alterations in bipolar disorder. A tentative explanation would be that NT-4/5 increases is compensating for ongoing oxidative damage in dopaminergic neurons.
AuthorsJulio C Walz, Pedro V Magalhães, Larriany M Giglio, Angelo B Cunha, Laura Stertz, Gabriel R Fries, Ana C Andreazza, Flávio Kapczinski
JournalJournal of psychiatric research (J Psychiatr Res) Vol. 43 Issue 7 Pg. 721-3 (Apr 2009) ISSN: 1879-1379 [Electronic] England
PMID19081579 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Nerve Growth Factors
  • neurotrophin 5
  • neurotrophin 4
Topics
  • Adult
  • Affect
  • Bipolar Disorder (blood, diagnosis, psychology)
  • Enzyme-Linked Immunosorbent Assay
  • Female
  • Humans
  • Male
  • Middle Aged
  • Nerve Growth Factors (blood)
  • Psychiatric Status Rating Scales

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