PMID- 11927139 OWN - NLM STAT- MEDLINE DCOM- 20020619 LR - 20220408 IS - 0165-1781 (Print) IS - 0165-1781 (Linking) VI - 109 IP - 2 DP - 2002 Mar 15 TI - Decreased serum brain-derived neurotrophic factor levels in major depressed patients. PG - 143-8 AB - Recent findings with animal models have suggested a possible role for brain-derived neurotrophic factor (BDNF) in depression. We have therefore hypothesized that depression could be characterized by low levels of serum BDNF. Major depressed patients (15F + 15M) diagnosed according to DSM-IV criteria and healthy controls (15F + 15M) participated in the study. Serum BDNF was assayed with the ELISA method and the severity of depression was evaluated with Montgomery-Asberg-Depression Rating Scale (MADRS). BDNF levels were significantly lower in patients than in controls: 22.6 +/- 3 and 26.5 +/- 7 ng/ml (t-test = 2.7; d.f. = 58; P < 0.01). They were negatively correlated to the MADRS scores (r = -0.55; P < 0.02). Female patients were more depressed and released less BDNF than men. Analysis of covariance (MADRS and gender as independent variable vs. BDNF as dependent variable) indicated that depression severity mainly accounted for the negative correlation. These results suggest that major depression is characterized by low serum BDNF levels and support the hypothesis of neurotrophic factor involvement in affective disorders. FAU - Karege, Felicien AU - Karege F AD - Laboratory of Biochemistry, Division of Neuropsychiatry, Geneva University Hospitals, 2 chemin du Petit Bel-Air, CH-1225 Chene-Bourg, Switzerland. karege@biolo.unige.ch FAU - Perret, Guillaume AU - Perret G FAU - Bondolfi, Guido AU - Bondolfi G FAU - Schwald, Michele AU - Schwald M FAU - Bertschy, Gilles AU - Bertschy G FAU - Aubry, Jean-Michel AU - Aubry JM LA - eng PT - Journal Article PL - Ireland TA - Psychiatry Res JT - Psychiatry research JID - 7911385 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Adult MH - Blood Platelets/metabolism MH - Brain/physiopathology MH - Brain-Derived Neurotrophic Factor/*blood MH - Depressive Disorder, Major/blood/diagnosis/*physiopathology MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Humans MH - Male MH - Middle Aged MH - Psychiatric Status Rating Scales MH - Reference Values MH - Sex Factors EDAT- 2002/04/03 10:00 MHDA- 2002/06/20 10:01 CRDT- 2002/04/03 10:00 PHST- 2002/04/03 10:00 [pubmed] PHST- 2002/06/20 10:01 [medline] PHST- 2002/04/03 10:00 [entrez] AID - S0165178102000057 [pii] AID - 10.1016/s0165-1781(02)00005-7 [doi] PST - ppublish SO - Psychiatry Res. 2002 Mar 15;109(2):143-8. doi: 10.1016/s0165-1781(02)00005-7.