PMID- 33198873 OWN - NLM STAT- MEDLINE DCOM- 20201119 LR - 20201119 IS - 2095-4352 (Print) VI - 32 IP - 10 DP - 2020 Oct TI - [Role of hydrogen sulfide on expression of phosphatidylinositol 3 kinase/protein kinase B signal pathway in rats with intestinal ischemia/reperfusion injury]. PG - 1247-1250 LID - 10.3760/cma.j.cn121430-20200417-00310 [doi] AB - OBJECTIVE: To explore the effect of hydrogen sulfide (H(2)S) on expression of phosphatidylinositol 3 kinase/protein kinase B (PI3K/Akt) signal pathway in rats with intestinal ischemia/reperfusion (IRI) injury. METHODS: Thirty male Wistar rats were divided into sham operation group (Sham group), IRI group, and H(2)S precursor sodium hydrosuphide (NaHS) intervention group (IRI+NaHS group) by random number table method, with 10 rats in each group. The animal model of IRI was established by 60 minutes superior mesenteric artery (SMA) blockage with non-invasive vascular clamp and 120 minutes reflow. SMA was dissociated and peritoneum cavity was closed in Sham group. The rats in IRI+NaHS group was received NaHS (100 mumol/kg bolus+1.07 mmolxkg(-1)xh(-1) infusion) 10 minutes prior to the onset of reperfusion, while the rats in IRI group and Sham group were received equal volume of normal sodium. Blood in vena cava was collected. H(2)S was detected by sensitive sulfide electrode. Rats were sacrificed after blood collection. Histopathology change was observed by hematoxylin-eosin (HE) staining, ileal pathological score was studied by Chiu score. The protein expressions of phosphated Akt (p-Akt), Akt, PI3K, cleaved caspase-9, mammalian target of rapamycin (mTOR) were determined by Western Blot. RESULTS: Compared with the Sham group, there was intestinal mucosa structure disorder edema and shedding villous fracture in the IRI group. Ileal pathological score in IRI group was significantly increased (4.21+/-0.15 vs. 0.15+/-0.03, P < 0.01), while plasma H(2)S in IRI group was significantly decreased (mumol/L: 26.72+/-3.17 vs. 38.34+/-5.24, P < 0.01). Ileal p-Akt, PI3K, caspase-9 and mTOR protein in IRI group were significantly increased (p-Akt/GAPDH: 2.67+/-0.12 vs. 0.24+/-0.05, PI3K/GAPDH: 1.42+/-0.07 vs. 0.57+/-0.08, caspase-9/GAPDH: 4.23+/-0.61 vs. 0.13+/-0.02, mTOR/GAPDH: 2.17+/-0.23 vs. 0.23+/-0.02, all P < 0.01). Compared with the IRI group, pathological changes of intestinal mucosa in the IRI+NaHS group was improved, ileal pathological score was significantly decreased (1.56+/-0.02 vs. 4.21+/-0.15, P < 0.01), plasma H(2)S was significantly increased (mumol/L: 32.36+/-2.45 vs. 26.72+/-3.17, P < 0.01) and ileal p-Akt, PI3K were significantly increased (p-Akt/GAPDH: 5.12+/-0.08 vs. 2.67+/-0.12, PI3K/GAPDH: 3.14+/-0.05 vs. 1.42+/-0.07, both P < 0.01), while caspase-9, mTOR in IRI+NaHS group were significantly decreased (caspase-9/GAPDH: 2.12+/-0.24 vs. 4.23+/-0.61, mTOR/GAPDH: 1.37+/-0.28 vs. 2.17+/-0.23, both P < 0.01). CONCLUSIONS: H(2)S attenuates intestinal injury in IRI rats by up-regulating PI3K/Akt signal pathway and down-regulating caspase-9 and mTOR. FAU - Lu, Genlin AU - Lu G AD - First Department of General Surgery, Longyou County People's Hospital, Longyou 324400, Zhejiang, China. FAU - Wu, Aibing AU - Wu A AD - Oncology Center, the Hospital Affiliated to Guangdong Medical University, Zhanjiang 523808, Guangdong, China. FAU - Wang, Hongbin AU - Wang H AD - Department of Hepatopancreato-biliary Surgery, the Hospital Affiliated to Qinghai University, Xining 810001, Qinghai, China. Corresponding author: Lu Genlin, Email: lugenlin007@163.com. LA - chi PT - Journal Article PL - China TA - Zhonghua Wei Zhong Bing Ji Jiu Yi Xue JT - Zhonghua wei zhong bing ji jiu yi xue JID - 101604552 RN - EC 2.7.1.137 (Phosphatidylinositol 3-Kinase) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - YY9FVM7NSN (Hydrogen Sulfide) SB - IM MH - Animals MH - Hydrogen Sulfide MH - Male MH - Phosphatidylinositol 3-Kinase MH - Phosphatidylinositol 3-Kinases/metabolism MH - Proto-Oncogene Proteins c-akt/metabolism MH - Rats MH - Rats, Wistar MH - *Reperfusion Injury MH - Signal Transduction EDAT- 2020/11/18 06:00 MHDA- 2020/11/20 06:00 CRDT- 2020/11/17 05:48 PHST- 2020/11/17 05:48 [entrez] PHST- 2020/11/18 06:00 [pubmed] PHST- 2020/11/20 06:00 [medline] AID - 10.3760/cma.j.cn121430-20200417-00310 [doi] PST - ppublish SO - Zhonghua Wei Zhong Bing Ji Jiu Yi Xue. 2020 Oct;32(10):1247-1250. doi: 10.3760/cma.j.cn121430-20200417-00310.