PMID- 24524285 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20140217 LR - 20220316 IS - 1758-5996 (Print) IS - 1758-5996 (Electronic) IS - 1758-5996 (Linking) VI - 6 IP - 1 DP - 2014 Feb 13 TI - Brain-derived neurotrophic factor, but not body weight, correlated with a reduction in depression scale scores in men with metabolic syndrome: a prospective weight-reduction study. PG - 18 LID - 10.1186/1758-5996-6-18 [doi] AB - BACKGROUND: Obesity, a critical component of metabolic syndrome (MetS), is associated with depression. Deficiency of brain-derived neurotrophic factor (BDNF) is involved in the mechanism of depression. We hypothesized that weight reduction would improve depressive symptoms via increasing BDNF levels in obese men. METHODS: Male adults with obesity were enrolled in a weight-reduction program for twelve weeks. All subjects underwent daily caloric restriction and an exercise program which was regularly assessed in group classes. Fasting blood samples and Zung Self-Rating Depression Scale (Zung SDS) scores were collected for assessments before and after the study. RESULTS: A total of 36 subjects completed this program. The average reduction in body weight was 8.4 +/- 5.1 kg (8.8 +/- 5.1%, P < 0.001). Fasting serum BDNF significantly increased after the study (from 40.4 +/- 7.8 to 46.9 +/- 8.9 ng/ml, P < 0.001). However, the depression symptoms, as assessed by the Zung Self-Rating Depression Scale (Zung SDS), did not reduce significantly (P = 0.486). Divided into subgroups based on changes in BDNF, Zung SDS scores were significantly reduced in subjects with greater BDNF increase than in those with minor BDNF change (-3.9 +/- 6.2 vs. 2.3 +/- 6.7, P = 0.009). The increased percentage of BDNF was inversely correlated with the change in Zung SDS (r = -0.380, P = 0.022). Multivariate regression analysis showed that reduction in BDNF was independently associated with change in Zung SDS (95% confidence interval -0.315 to -0.052, P = 0.008). CONCLUSION: Zung SDS only significantly improved in men with increased fasting BDNF levels after a lifestyle intervention. TRIAL REGISTRATION: (NCT01065753, ClinicalTrials.gov). FAU - Lee, I-Te AU - Lee IT FAU - Fu, Chia-Po AU - Fu CP FAU - Lee, Wen-Jane AU - Lee WJ FAU - Liang, Kae-Woei AU - Liang KW FAU - Lin, Shih-Yi AU - Lin SY FAU - Wan, Chu-Jen AU - Wan CJ FAU - Sheu, Wayne Huey-Herng AU - Sheu WH AD - Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, No, 1650, Section 4, Taiwan Boulevard, Taichung 40705, Taiwan. whhsheu@vghtc.gov.tw. LA - eng SI - ClinicalTrials.gov/NCT01065753 PT - Journal Article DEP - 20140213 PL - England TA - Diabetol Metab Syndr JT - Diabetology & metabolic syndrome JID - 101488958 PMC - PMC3925444 EDAT- 2014/02/15 06:00 MHDA- 2014/02/15 06:01 PMCR- 2014/02/13 CRDT- 2014/02/15 06:00 PHST- 2013/07/30 00:00 [received] PHST- 2014/02/11 00:00 [accepted] PHST- 2014/02/15 06:00 [entrez] PHST- 2014/02/15 06:00 [pubmed] PHST- 2014/02/15 06:01 [medline] PHST- 2014/02/13 00:00 [pmc-release] AID - 1758-5996-6-18 [pii] AID - 10.1186/1758-5996-6-18 [doi] PST - epublish SO - Diabetol Metab Syndr. 2014 Feb 13;6(1):18. doi: 10.1186/1758-5996-6-18.