PMID- 35096858 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220201 IS - 2296-858X (Print) IS - 2296-858X (Electronic) IS - 2296-858X (Linking) VI - 8 DP - 2021 TI - Oxidative Stress in Intestinal Ischemia-Reperfusion. PG - 750731 LID - 10.3389/fmed.2021.750731 [doi] LID - 750731 AB - Ischemia-reperfusion (I/R) injury is a manifestation of tissue or organ damage that is followed by ischemia and exacerbated by the return of blood flow to a previously damaged tissue or organ. The intestines are one of the most sensitive tissues and organs to I/R injury. Moreover, the adverse consequences of intestinal I/R (II/R) injury are not limited to the intestine itself and can also lead to damage of the distant tissues and organs. The mechanism of II/R is extremely complex and oxidative stress is the key link in the pathogenesis of II/R injury. This study summarizes the roles of oxidative stress and its signaling pathways involved in II/R. The signaling pathways that mitigate II/R injury include the nuclear factor erythroid-related factor 2 (Nrf2)-mediated signaling pathway, Wnt/beta-catenin pathway, and phosphatidylinositol kinase 3 (PI3K)/Akt pathway; those that aggravate II/R injury include the Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway, Toll-like receptor (TLR) receptor-mediated signaling pathway, protein kinase CbetaII (PKCbetaII)/p66shc pathway, and microRNA (miRNA)/p66shc pathway; the effect of miRNA on related pathways and mitochondrial DNA translocation. The aforementioned pathways provide new ideas for further exploring the occurrence and development of II/R and more effective treatments for II/R injury. CI - Copyright (c) 2022 Li, Wang and Fan. FAU - Li, Guangyao AU - Li G AD - Department of General Surgery, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China. AD - Department of Central Laboratory, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China. FAU - Wang, Shuang AU - Wang S AD - Department of Endocrinology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Fan, Zhe AU - Fan Z AD - Department of General Surgery, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China. AD - Department of Central Laboratory, The Third People's Hospital of Dalian, Dalian Medical University, Dalian, China. LA - eng PT - Journal Article PT - Review DEP - 20220114 PL - Switzerland TA - Front Med (Lausanne) JT - Frontiers in medicine JID - 101648047 PMC - PMC8795364 OTO - NOTNLM OT - intestinal OT - ischemia-reperfusion OT - oxidative stress OT - review OT - signal pathway COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/02/01 06:00 MHDA- 2022/02/01 06:01 PMCR- 2022/01/14 CRDT- 2022/01/31 06:00 PHST- 2021/07/31 00:00 [received] PHST- 2021/12/16 00:00 [accepted] PHST- 2022/01/31 06:00 [entrez] PHST- 2022/02/01 06:00 [pubmed] PHST- 2022/02/01 06:01 [medline] PHST- 2022/01/14 00:00 [pmc-release] AID - 10.3389/fmed.2021.750731 [doi] PST - epublish SO - Front Med (Lausanne). 2022 Jan 14;8:750731. doi: 10.3389/fmed.2021.750731. eCollection 2021.