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- W1504895308 abstract "Dexmedetomidine (DEX) has been hypothesized to possess anti‑oxidative properties that may mitigate the damage caused by ischemia‑reperfusion (IR) injury. The aim of the present study was to examine the effects of DEX on intestinal contractile activity, inflammation and apoptosis following intestinal IR injury. Intestinal IR injury was induced in rats by complete occlusion of the superior mesenteric artery for 60 min, followed by a 60‑min reperfusion period. Rats received an intraperitoneal injection of 25 µg/kg DEX at 30 min prior to the mesenteric IR injury. Following reperfusion, segments of the terminal ileum were rapidly extracted and transferred into an isolated organ bath. The contractile responses to receptor‑mediated acetylcholine (Ach) and non‑receptor‑mediated potassium chloride (KCl) were subsequently examined. Nitric oxide (NO) levels were determined and the expression levels of tumor necrosis factor (TNF)‑α, interleukin (IL)‑6, Bax and Bcl‑2 were measured using an enzyme‑linked immunosorbent assay. The levels of telomerase and caspase‑3 were determined using reverse transcription‑quantitative polymerase chain reaction. The results indicated that DEX treatment produced a significant reduction in the IR‑induced contractile response to Ach and KCl in the intestinal tissue. Furthermore, DEX appeared to significantly ameliorate intestinal IR injury, in addition to reducing the production of NO. Similar reductions were observed in the intestinal expression levels of TNF‑α and IL‑6. In addition, DEX treatment resulted in a reduction in the expression levels of Bax in the intestinal tissues, while increasing those of Bcl‑2, in addition to significantly increasing the mRNA levels of telomerase and caspase‑3. Therefore, the present study indicated that NO, TNF‑α and IL‑6 may partially contribute to the pathogenesis of intestinal IR injury in addition to the increased expression levels of Bax, Bcl‑2, telomerase and caspase‑3. These findings suggest that DEX possesses beneficial anti‑apoptotic and anti‑inflammatory effects in intestinal tissue following bowel injury." @default.
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- W1504895308 date "2015-06-10" @default.
- W1504895308 modified "2023-10-05" @default.
- W1504895308 title "Protective effects of dexmedetomidine on intestinal ischemia-reperfusion injury" @default.
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- W1504895308 doi "https://doi.org/10.3892/etm.2015.2561" @default.
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