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Information Journal Paper

Title

Effects of lipopolysaccharide-induced septic shock on rat isolated kidney, possible role of nitric oxide and protein kinase C pathways

Pages

  1073-1078

Abstract

 Objective(s): Pathophysiology of sepsis-associated renal failure (one of the most common cause of death in intensive care units) had not been fully determined. The effect of Nitric oxide and Protein kinase C (PKC) pathways in isolated Kidney of Lipopolysaccharide-treated (LPS) Rats were investigated in this study. Materials and Methods: Vascular responsiveness to phenylephrine and acetylcholine in the presence and absence of a potent PKC inhibitor (chelerythrine) and nonspecific NO inhibitor (L-NAME) as well as responses to acetylcholine and sodium nitroprusside (SNP) were examined. Results: LPS (10 mg/kg, IP) treatment resulted in a lower systemic pressure and reduction of responses to Vasoconstrictor and Vasodilator agents (P<0. 05 to P<0. 01). The contractile response to phenylephrine and the relaxation response to acetylcholine were significantly blunted in isolated Kidneys removed from LPS-treated Rats. L-NAME (10 μ M) preincubation modified the responses to acetylcholine in isolated Kidneys of control animal (P<0. 001) but not in LPS-treated Rats. While, chelerythrine (10 μ M) preincubation partially restored response to phenylephrine in LPS-treated tissues. Conclusion: Present study highlighted that five hours of intraperitoneal endotoxin injection is adequate to reduce renal basal perfusion pressure. These results also suggest that PKC inhibition may have a beneficial role in vascular hyporesponsiveness induced by LPS. Although our study partly elaboRated on the effects of LPS on isolated renal vascular responses to vasoactive agents, further studies are required to explain how LPS exerts its renal vascular effects.

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    APA: Copy

    GHOLAMNEZHAD, ZAHRA, & Fatehi Hassanabad, Zahra. (2018). Effects of lipopolysaccharide-induced septic shock on rat isolated kidney, possible role of nitric oxide and protein kinase C pathways. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 21(10), 1073-1078. SID. https://sid.ir/paper/720946/en

    Vancouver: Copy

    GHOLAMNEZHAD ZAHRA, Fatehi Hassanabad Zahra. Effects of lipopolysaccharide-induced septic shock on rat isolated kidney, possible role of nitric oxide and protein kinase C pathways. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2018;21(10):1073-1078. Available from: https://sid.ir/paper/720946/en

    IEEE: Copy

    ZAHRA GHOLAMNEZHAD, and Zahra Fatehi Hassanabad, “Effects of lipopolysaccharide-induced septic shock on rat isolated kidney, possible role of nitric oxide and protein kinase C pathways,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 21, no. 10, pp. 1073–1078, 2018, [Online]. Available: https://sid.ir/paper/720946/en

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