Therapeutic Potential of Cerium Oxide Nanoparticles for the Treatment of Peritonitis Induced by Polymicrobial Insult in Sprague-Dawley Rats

Critical Care Medicine
Nandini D P K ManneEric R Blough

Abstract

Peritonitis is a life-threatening disease that is associated with high mortality. The purpose of this study was to determine if cerium oxide nanoparticles can be used to diminish intra-abdominal infection-induced mortality and systemic inflammatory response syndrome in the laboratory rat. Randomized, controlled animal study and cell culture study. University research laboratory. Male Sprague-Dawley rats aged 12 weeks, RAW 246.7 macrophage cell line. Intra-abdominal infection or peritonitis was induced by intraperitoneal injection of cecal material (600 mg/kg in 5% sterile dextrose water at a dosage of 5 mL/kg) obtained from healthy donors. Rats in control and peritonitis groups received 200 μL of sterile deionized water IV via the tail vein, whereas rats in cerium oxide-only group and peritonitis+cerium oxide group received cerium oxide nanoparticles (0.5 mg/kg) IV at the time of polymicrobial injection. Survival rate was monitored for 14 days, while in other experiments, animals were killed at 3 and 18 hours after induction of peritonitis for biochemical analysis. Administration of a single dose (0.5 mg/kg) of cerium oxide nanoparticles IV to rats in the peritonitis group significantly improved survival rates and functioned to...Continue Reading

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Citations

May 5, 2016·Particle and Fibre Toxicology·Donna C DavidsonLiying Wang
Feb 13, 2020·Frontiers in Pharmacology·Karin L HeckmanJoseph S Erlichman
Sep 22, 2020·Nano Today·Prince AllawadhiKala Kumar Bharani

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