PMID- 24049207 OWN - PIP STAT- PubMed-not-MEDLINE DCOM- 20130919 LR - 20220317 IS - 0019-5545 (Print) IS - 1998-3794 (Electronic) IS - 0019-5545 (Linking) VI - 55 IP - Suppl 3 DP - 2013 Jul TI - Low serum brain derived neurotrophic factor in non-suicidal out-patients with depression: Relation to depression scores. PG - S397-9 LID - 10.4103/0019-5545.116311 [doi] AB - CONTEXT: Low brain-derived neurotrophic factor (BDNF) has been implicated in the pathophysiology of depression. The relation between BDNF and severity of depression has been investigated. AIMS: In this study, we aimed to measured serum BDNF levels in never-treated non-suicidal out-patients with depression and relate this to the severity of depression. SETTINGS AND DESIGN: This study was conducted in an out-patient setting in a tertiary care psychiatric hospital on consenting depressed patients. MATERIALS AND METHODS: Forty three (19 females) antidepressant-naive out-patients with depression, aged between 18 and 55 years and 24 (13 females) age-matched healthy volunteers gave consent for the study. Serum BDNF levels were assayed by using the sandwich enzyme-linked immunosorbent assay method on morning serum samples before starting treatment. These were compared between patients and controls using independent sample t-test. Pearson's correlation coefficient was used to assess the association between baseline BDNF and Hamilton depression rating scale (HDRS). RESULTS: Serum BDNF was significantly lower in patients with depression (mean+/-standard deviation (SD)=18.59+/-4.9 ng/ml) than in healthy volunteers (mean+/-SD=23.6+/-5.6 ng/ml; P=0.001). There was a significant negative correlation between the HDRS total scores and BDNF levels (P=0.04), indicating that more severely depressed patients had lower BDNF scores. CONCLUSIONS: Serum BDNF level is lower in non-suicidal out-patients with depression. The inverse correlation between ratings of depression and BDNF levels suggests possible relationship between depression, (role of illness on) BDNF levels and neuroplasticity thereof. FAU - Varambally, S AU - Varambally S AD - Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India. FAU - Naveen, G H AU - Naveen GH FAU - Rao, M G AU - Rao MG FAU - Thirthalli, J AU - Thirthalli J FAU - Sharma, R AU - Sharma R FAU - Christopher, R AU - Christopher R FAU - Gangadhar, B N AU - Gangadhar BN LA - eng PT - Journal Article PL - India TA - Indian J Psychiatry JT - Indian journal of psychiatry JID - 0013255 PMC - PMC3768220 OTO - NOTNLM OT - Brain derived neurotrophic factor OT - depression OT - hamilton depression rating scale COIS- Conflict of Interest: None declared. EDAT- 2013/09/21 06:00 MHDA- 2013/09/21 06:01 PMCR- 2013/07/01 CRDT- 2013/09/20 06:00 PHST- 2013/09/20 06:00 [entrez] PHST- 2013/09/21 06:00 [pubmed] PHST- 2013/09/21 06:01 [medline] PHST- 2013/07/01 00:00 [pmc-release] AID - IJPsy-55-397 [pii] AID - 10.4103/0019-5545.116311 [doi] PST - ppublish SO - Indian J Psychiatry. 2013 Jul;55(Suppl 3):S397-9. doi: 10.4103/0019-5545.116311.