PMID- 26508964 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20151028 LR - 20200930 IS - 1738-3684 (Print) IS - 1976-3026 (Electronic) IS - 1738-3684 (Linking) VI - 12 IP - 4 DP - 2015 Oct TI - A Longitudinal Study of BDNF Promoter Methylation and Depression in Breast Cancer. PG - 523-31 LID - 10.4306/pi.2015.12.4.523 [doi] AB - OBJECTIVE: Brain-derived neurotrophic factor (BDNF) is investigated in depression related to medical disorders and its secretion is influenced by epigenetic factors. We investigated the association between BDNF promoter methylation and depression following mastectomy for breast cancer. METHODS: In total, 309 patients with breast cancer were evaluated 1 week after mastectomy, and 244 (79%) were followed up 1 year later. Depression was diagnosed (major or minor depressive disorder) according to DSM-IV criteria and depression severity was estimated by Montgomery-Asberg Depression Rating Scale (MADRS). We assessed BDNF promoter methylation using leukocyte DNA. The effects of BDNF methylation on depression diagnosis and severity were investigated using multivariate logistic and linear regression models, respectively. The two-way interaction between BDNF methylation and the val66met polymorphism on depression was also evaluated using multivariate logistic regression models. RESULTS: Higher BDNF methylation was independently associated with depression diagnosis and with more severe symptoms at both 1 week and 1 year after mastectomy. No significant methylation-genotype interactions were found. CONCLUSION: A role for BDNF in depression related to breast cancer was supported. Indeed, the association between depression and BDNF methylation may be useful for identifying patients who are at high risk for depression and for suggesting directions for promising drug research. FAU - Kang, Hee-Ju AU - Kang HJ AD - Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Kim, Jae-Min AU - Kim JM AD - Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Kim, Seon-Young AU - Kim SY AD - Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Kim, Sung-Wan AU - Kim SW AD - Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Shin, Il-Seon AU - Shin IS AD - Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Kim, Hye-Ran AU - Kim HR AD - Brain Korea 21 Project, Center for Biomedical Human Resources, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Park, Min-Ho AU - Park MH AD - Breast and Endocrine Tumor Clinic, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea. FAU - Shin, Myung-Geun AU - Shin MG AD - Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea. FAU - Yoon, Jung-Han AU - Yoon JH AD - Breast and Endocrine Tumor Clinic, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea. FAU - Yoon, Jin-Sang AU - Yoon JS AD - Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea. LA - eng PT - Journal Article DEP - 20150930 PL - Korea (South) TA - Psychiatry Investig JT - Psychiatry investigation JID - 101242994 PMC - PMC4620310 OTO - NOTNLM OT - BDNF OT - Breast cancer OT - DNA methylation OT - Depression OT - Epigenetics EDAT- 2015/10/29 06:00 MHDA- 2015/10/29 06:01 PMCR- 2015/10/01 CRDT- 2015/10/29 06:00 PHST- 2014/11/11 00:00 [received] PHST- 2014/12/02 00:00 [revised] PHST- 2014/11/02 00:00 [accepted] PHST- 2015/10/29 06:00 [entrez] PHST- 2015/10/29 06:00 [pubmed] PHST- 2015/10/29 06:01 [medline] PHST- 2015/10/01 00:00 [pmc-release] AID - 10.4306/pi.2015.12.4.523 [doi] PST - ppublish SO - Psychiatry Investig. 2015 Oct;12(4):523-31. doi: 10.4306/pi.2015.12.4.523. Epub 2015 Sep 30.