PMID- 26505750 OWN - NLM STAT- MEDLINE DCOM- 20160620 LR - 20181202 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 10 DP - 2015 TI - Sevoflurane Preconditioning Reduces Intestinal Ischemia-Reperfusion Injury: Role of Protein Kinase C and Mitochondrial ATP-Sensitive Potassium Channel. PG - e0141426 LID - 10.1371/journal.pone.0141426 [doi] LID - e0141426 AB - Ischemic preconditioning (IPC) has been considered to be a potential therapy to reduce ischemia-reperfusion injury (IRI) since the 1980s. Our previous study indicated that sevoflurane preconditioning (SPC) also reduced intestinal IRI in rats. However, whether the protective effect of SPC is similar to IPC and the mechanisms of SPC are unclear. Thus, we compared the efficacy of SPC and IPC against intestinal IRI and the role of protein kinase C (PKC) and mitochondrial ATP-sensitive potassium channel (mKATP) in SPC. A rat model of intestinal IRI was used in this study. The superior mesenteric artery (SMA) was clamped for 60 min followed by 120 min of reperfusion. Rats with IPC underwent three cycles of SMA occlusion for 5 min and reperfusion for 5 min before intestinal ischemia. Rats with SPC inhaled sevoflurane at 0.5 minimum alveolar concentration (MAC) for 30 min before the intestinal ischemic insult. Additionally, the PKC inhibitor Chelerythrine (CHE) or mKATP inhibitor 5-Hydroxydecanoic (5-HD) was injected intraperitoneally before sevoflurane inhalation. Both SPC and IPC ameliorated intestinal IRI-induced histopathological changes, decreased Chiu's scores, reduced terminal deoxyribonucleotide transferase-mediated dUTP nick end labeling (TUNEL) positive cells in the epithelium, and inhibited the expression of malondialdehyde (MDA) and tumor necrosis factor-alpha (TNF-alpha). These protective effects of SPC were similar to those of IPC. Pretreatment with PKC or mKATP inhibitor abolished SPC-induced protective effects by increasing Chiu's scores, down-regulated the expression of Bcl-2 and activated caspase-3. Our results suggest that pretreatment with 0.5 MAC sevoflurane is as effective as IPC against intestinal IRI. The activation of PKC and mKATP may be involved in the protective mechanisms of SPC. FAU - Liu, Chuiliang AU - Liu C AD - Department of Anesthesiology, ChanCheng Center Hospital, Foshan, Guangdong, China. FAU - Liu, Yanhui AU - Liu Y AD - Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Shen, Zhiwen AU - Shen Z AD - Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Miao, Liping AU - Miao L AD - Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Zhang, Kun AU - Zhang K AD - Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Wang, Fei AU - Wang F AD - Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China. FAU - Li, Yujuan AU - Li Y AD - Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151027 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Benzophenanthridines) RN - 0 (KATP Channels) RN - 0 (Methyl Ethers) RN - 0 (Tumor Necrosis Factor-alpha) RN - 38LVP0K73A (Sevoflurane) RN - 4Y8F71G49Q (Malondialdehyde) RN - E3B045W6X0 (chelerythrine) RN - EC 2.7.11.13 (Protein Kinase C) SB - IM MH - Animals MH - Benzophenanthridines/administration & dosage MH - Intestinal Mucosa/*metabolism MH - Intestines/drug effects/pathology MH - Ischemic Preconditioning MH - KATP Channels/antagonists & inhibitors/*metabolism MH - Malondialdehyde/metabolism MH - Mesenteric Artery, Superior/drug effects/pathology MH - Methyl Ethers/administration & dosage MH - Mitochondria/drug effects/pathology MH - Protein Kinase C/antagonists & inhibitors/*metabolism MH - Rats MH - Reperfusion Injury/*drug therapy/pathology MH - Sevoflurane MH - Tumor Necrosis Factor-alpha/biosynthesis PMC - PMC4624762 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/10/28 06:00 MHDA- 2016/06/21 06:00 PMCR- 2015/10/27 CRDT- 2015/10/28 06:00 PHST- 2015/05/12 00:00 [received] PHST- 2015/09/06 00:00 [accepted] PHST- 2015/10/28 06:00 [entrez] PHST- 2015/10/28 06:00 [pubmed] PHST- 2016/06/21 06:00 [medline] PHST- 2015/10/27 00:00 [pmc-release] AID - PONE-D-15-19887 [pii] AID - 10.1371/journal.pone.0141426 [doi] PST - epublish SO - PLoS One. 2015 Oct 27;10(10):e0141426. doi: 10.1371/journal.pone.0141426. eCollection 2015.