PMID- 30052465 OWN - NLM STAT- MEDLINE DCOM- 20181108 LR - 20181108 IS - 1205-7541 (Electronic) IS - 0008-4212 (Linking) VI - 96 IP - 9 DP - 2018 Sep TI - Depression induced by chronic stress leads to penile cavernosal dysfunction: protective effect of anti-TNF-alpha treatment. PG - 933-942 LID - 10.1139/cjpp-2017-0778 [doi] AB - Psychological stress may lead to erectile dysfunction (ED), and inflammation has been evaluated as a major contributing factor. The goal of this study was to investigate the effects of etanercept (ETN), an anti-tumor necrosis factor alpha (TNF-alpha) protein, on cavernosal function in the unpredictable chronic mild stress (UCMS) rat model of depression. Animals were divided into 4 groups: animals not exposed to UCMS, animals not exposed to UCMS and treated with ETN, animals exposed to UCMS, and animals treated with ETN while exposed to UCMS. UCMS significantly impaired the neurogenic and endothelium-dependent relaxation responses; reduced cavernosal endothelial nitric oxide (NO) synthase (eNOS) and neuronal NO synthase (nNOS) expressions; decreased testosterone levels; enhanced systemic levels of corticosterone, TNF-alpha, interleukin 1beta (IL-1beta), interleukin 6 (IL-6), monocyte chemoattractant protein-1 (MCP-1), and intercellular adhesion molecule 1 (ICAM-1); and also increased cavernosal levels of TNF-alpha, IL-1beta, and IL-6 in rats. ETN administration restored NO-mediated neurogenic and endothelium-dependent relaxation responses of the corpus cavernosum, increased cavernosal eNOS and nNOS expressions, enhanced testosterone levels, and decreased corticosterone levels in UCMS-exposed rats. Also, systemic inflammatory markers and cavernosal proinflammatory cytokine levels were reduced by ETN. Our results demonstrate the role of TNF-alpha-mediated inflammation in the development of depression and ED in rats exposed to chronic stress. FAU - Demirtas Sahin, Tugce AU - Demirtas Sahin T AD - a Department of Pharmacology, Medical Faculty, Kocaeli University, Kocaeli, Turkey. FAU - Yazir, Yusufhan AU - Yazir Y AD - b Department of Histology and Embryology, Medical Faculty, Kocaeli University, Kocaeli, Turkey. AD - c Stem Cell and Gene Therapy Research and Application Center, Kocaeli University, Kocaeli, Turkey. FAU - Utkan, Tijen AU - Utkan T AD - a Department of Pharmacology, Medical Faculty, Kocaeli University, Kocaeli, Turkey. FAU - Gacar, Gulcin AU - Gacar G AD - c Stem Cell and Gene Therapy Research and Application Center, Kocaeli University, Kocaeli, Turkey. FAU - Halbutogullari, Zehra Seda AU - Halbutogullari ZS AD - c Stem Cell and Gene Therapy Research and Application Center, Kocaeli University, Kocaeli, Turkey. FAU - Gocmez, Semil Selcen AU - Gocmez SS AD - a Department of Pharmacology, Medical Faculty, Kocaeli University, Kocaeli, Turkey. LA - eng PT - Journal Article DEP - 20180727 PL - Canada TA - Can J Physiol Pharmacol JT - Canadian journal of physiology and pharmacology JID - 0372712 RN - 0 (Tumor Necrosis Factor-alpha) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type I) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) RN - OP401G7OJC (Etanercept) SB - IM MH - Animals MH - Behavior, Animal MH - Body Weight MH - Depression/physiopathology/*psychology/*therapy MH - Endothelium/metabolism MH - Erectile Dysfunction/*psychology MH - Etanercept/*immunology/*therapeutic use MH - Gene Expression Regulation, Enzymologic MH - Locomotion MH - Male MH - Nitric Oxide Synthase Type I/genetics MH - Nitric Oxide Synthase Type III/genetics MH - Rats MH - Rats, Wistar MH - Stress, Psychological/*psychology MH - Time Factors MH - Tumor Necrosis Factor-alpha/*immunology MH - Vasodilation OTO - NOTNLM OT - TNF-alpha OT - dysfonction erectile OT - erectile dysfunction OT - inflammation OT - stress leger imprevisible chronique OT - unpredictable chronic mild stress EDAT- 2018/07/28 06:00 MHDA- 2018/11/09 06:00 CRDT- 2018/07/28 06:00 PHST- 2018/07/28 06:00 [pubmed] PHST- 2018/11/09 06:00 [medline] PHST- 2018/07/28 06:00 [entrez] AID - 10.1139/cjpp-2017-0778 [doi] PST - ppublish SO - Can J Physiol Pharmacol. 2018 Sep;96(9):933-942. doi: 10.1139/cjpp-2017-0778. Epub 2018 Jul 27.