PMID- 29573663 OWN - NLM STAT- MEDLINE DCOM- 20180928 LR - 20211204 IS - 1879-3231 (Electronic) IS - 0093-691X (Linking) VI - 113 DP - 2018 Jun TI - Capsaicin protects against testicular torsion injury through mTOR-dependent mechanism. PG - 247-252 LID - S0093-691X(18)30093-1 [pii] LID - 10.1016/j.theriogenology.2018.03.012 [doi] AB - SCOPE: Testicular torsion and subsequent release of reactive oxygen species (ROS) can cause infertility in adults. Oxidative stress following testicular torsion plays an important role in the yonset and development of apoptotic cell death through dysregulation of the cellular signaling pathways. Anti-inflammatory and antioxidant properties of capsaicin, a bioactive composition present in red peppers, has already been exploited for treatment of the cancer and pain relief. In present work, we evaluated the role of the mammalian target of rapamycin (mTOR) in antioxidant effect of capsaicin against reperfusion injury following testicular torsion. METHODS: Male Wistar rats weighing 200-220 g were randomly assigned into four major groups: (i) a sham operated group, (ii) a testicular torsion (TT) group, (iii) three groups treated with different doses of capsaicin (TT + 100, 500 and 1000 mug/ml Cap), and (iv) three groups of healthy rats treated with different doses of capsaicin (100, 500 and 1000 mug/ml). Western blotting assay was used to examine the anti-apoptotic effects of capsaicin in testicular cells following torsion. H&E and TUNEL methods were used to evaluate testicular morphology and apoptosis activity. RESULTS: Compared to control group, phosphorylation of mTOR was significantly increased in the TT groups. Capsaicin administration remarkably decreased the phosphorylation of mTOR at the highest dose (P < 0.05). Capsaicin decreased apoptosis and preserved tubular morphology in testes. CONCLUSION: Our results showed that antioxidant properties of capsaicin minimizes cell death and reperfusion injury following testicular torsion. CI - Copyright (c) 2018. Published by Elsevier Inc. FAU - Javdan, Nasim AU - Javdan N AD - ShahidBeheshti University of Medical Sciences, Phytochemistry Research Center, Tehran, Iran. FAU - Ayatollahi, Seyed Abdulmajid AU - Ayatollahi SA AD - ShahidBeheshti University of Medical Sciences, Phytochemistry Research Center, Tehran, Iran; Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, 599 Portage Avenue, Winnipeg, MB, R3B 2G3, Canada; School of Pharmacy, ShahidBeheshti University of Medical Sciences, Tehran, Iran. Electronic address: majid_ayatollahi@yahoo.com. FAU - Choudhary, Muhammad Iqbal AU - Choudhary MI AD - International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi, Pakistan. FAU - Al-Hasani, Safaa AU - Al-Hasani S AD - Reproductive Medicine Unit, University of Schleswig-Holstein, Luebeck, Germany. FAU - Kobarfard, Farzad AU - Kobarfard F AD - Department of Medicinal Chemistry, Shaheed Beheshti School of Pharmacy, Tehran, Iran. FAU - Athar, Ata AU - Athar A AD - Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, 599 Portage Avenue, Winnipeg, MB, R3B 2G3, Canada. FAU - Pazoki-Toroudi, Hamidreza AU - Pazoki-Toroudi H AD - Physiology Research Center and Department of Physiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran. Electronic address: pazoki49@gmail.com. LA - eng PT - Journal Article DEP - 20180315 PL - United States TA - Theriogenology JT - Theriogenology JID - 0421510 RN - 0 (Antipruritics) RN - EC 2.7.1.1 (mTOR protein, rat) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - S07O44R1ZM (Capsaicin) SB - IM MH - Animals MH - Antipruritics/pharmacology MH - Capsaicin/*pharmacology MH - DNA Fragmentation MH - Gene Expression Regulation/*drug effects MH - Male MH - Rats MH - Rats, Wistar MH - Spermatic Cord Torsion/drug therapy/pathology/*veterinary MH - TOR Serine-Threonine Kinases/genetics/*metabolism MH - Testis/metabolism/pathology OTO - NOTNLM OT - Apoptosis OT - Capsaicin OT - Cell survival OT - Testicular torsion OT - mTOR pathway EDAT- 2018/03/25 06:00 MHDA- 2018/10/03 06:00 CRDT- 2018/03/25 06:00 PHST- 2017/12/19 00:00 [received] PHST- 2018/03/10 00:00 [revised] PHST- 2018/03/11 00:00 [accepted] PHST- 2018/03/25 06:00 [pubmed] PHST- 2018/10/03 06:00 [medline] PHST- 2018/03/25 06:00 [entrez] AID - S0093-691X(18)30093-1 [pii] AID - 10.1016/j.theriogenology.2018.03.012 [doi] PST - ppublish SO - Theriogenology. 2018 Jun;113:247-252. doi: 10.1016/j.theriogenology.2018.03.012. Epub 2018 Mar 15.