PMID- 17464718 OWN - NLM STAT- MEDLINE DCOM- 20070703 LR - 20131121 IS - 0004-8674 (Print) IS - 0004-8674 (Linking) VI - 41 IP - 4 DP - 2007 Apr TI - Changes in brain-derived neurotrophic factor following treatment with mifepristone in bipolar disorder and schizophrenia. PG - 321-6 AB - OBJECTIVE: Brain-derived neurotrophic factor (BDNF) is stress-responsive and has been implicated in a number of disparate neuropsychiatric disorders. Glucocorticoid antagonists have been shown to have beneficial effects on mood and cognitive function in bipolar disorder but not in schizophrenia. The aim of the present study was to investigate BDNF levels in patients with bipolar disorder and schizophrenia before and after treatment with the glucocorticoid receptor antagonist mifepristone. METHODS: Peripheral BDNF levels were measured in patients with bipolar disorder (n=20), schizophrenia (n=20) and 14 matched healthy controls following 7 days of adjunctive mifepristone (600 mg day(-1)) treatment in a double-blind, placebo-controlled crossover design study. RESULTS: Baseline BDNF values were similar in both patient groups and in healthy controls. Following treatment with mifepristone, cortisol levels were significantly increased and BDNF levels decreased in both schizophrenia and bipolar disorder. A significant correlation existed between change in cortisol level and change in BDNF levels following mifepristone treatment in schizophrenia, but not in bipolar disorder. CONCLUSION: Differing BDNF responses to increasing cortisol levels between patients with schizophrenia and with bipolar disorder may reflect underlying pathophysiological mechanisms. FAU - Mackin, Paul AU - Mackin P AD - School of Neurology, Neurobiology and Psychiatry, University of Newcastle upon Tyne, Leazes Wing (Psychiatry), Royal Victoria Infirmary, Newcastle upon Tyne, NE1 4LP, UK. paul.mackin@ncl.ac.uk FAU - Gallagher, Peter AU - Gallagher P FAU - Watson, Stuart AU - Watson S FAU - Young, Allan H AU - Young AH FAU - Ferrier, I Nicol AU - Ferrier IN LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Aust N Z J Psychiatry JT - The Australian and New Zealand journal of psychiatry JID - 0111052 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Hormone Antagonists) RN - 320T6RNW1F (Mifepristone) RN - WI4X0X7BPJ (Hydrocortisone) SB - IM MH - Adult MH - Affect/drug effects MH - Bipolar Disorder/*drug therapy/physiopathology MH - Brain-Derived Neurotrophic Factor/*drug effects MH - Cognition/drug effects MH - Cross-Over Studies MH - Double-Blind Method MH - Drug Administration Schedule MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Hormone Antagonists/administration & dosage/*pharmacology/*therapeutic use MH - Humans MH - Hydrocortisone/metabolism MH - Hypothalamo-Hypophyseal System/drug effects MH - Male MH - Middle Aged MH - Mifepristone/administration & dosage/*pharmacology/*therapeutic use MH - Pituitary-Adrenal System/drug effects MH - Schizophrenia/*drug therapy/physiopathology EDAT- 2007/04/28 09:00 MHDA- 2007/07/04 09:00 CRDT- 2007/04/28 09:00 PHST- 2007/04/28 09:00 [pubmed] PHST- 2007/07/04 09:00 [medline] PHST- 2007/04/28 09:00 [entrez] AID - 773322843 [pii] AID - 10.1080/00048670701213211 [doi] PST - ppublish SO - Aust N Z J Psychiatry. 2007 Apr;41(4):321-6. doi: 10.1080/00048670701213211.