Similarities between ozone oxidative preconditioning and ischemic preconditioning in renal ischemia/reperfusion injury.

Similarities between ozone oxidative preconditioning and ischemic preconditioning in renal ischemia/reperfusion injury. Research Abstract Details 

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Similarities between ozone oxidative preconditioning and ischemic preconditioning in renal ischemia/reperfusion injury. Abstract Text:

Hui Chen,Bianzhi Xing,Xiuheng Liu,Bingyan Zhan,Jiangqiao Zhou,Hengcheng Zhu,Zhiyuan Chen,Hui Chen,Bianzhi Xing,Xiuheng Liu,Bingyan Zhan,Jiangqiao Zhou,Hengcheng Zhu,Zhiyuan Chen,

BACKGROUND: Many studies indicate that the production of reactive oxygen species (ROS) after renal ischemia/reperfusion (I/R) may initiate the cascade of cellular injury. It has been demonstrated that ozone oxidative preconditioning (OzoneOP) may prevent the damage induced by ROS and attenuate renal I/R injury. On the basis of those results, we postulated that OzoneOP was similar to the ischemic preconditioning (IP). The aim of our present work was to assess whether the combination of OzoneOP and IP provided synergistic protection. METHODS: Seven groups of rats were classified as follows: 1) sham-operated control; 2) I/R; 3) OzoneOP + I/R; 4) IP + I/R; 5) OzoneOP + IP + I/R; 6) O(2) + I/R; 7) sham-operated control + OzoneOP. Rats were sacrificed at 24 h after I/R injury. Serum and tissue were taken to determine urea nitrogen (BUN), creatinine (Cr), nitric oxide (NO), histological examination, and NO synthase (endothelial, eNOS and inducible, iNOS) expression. Malondialdehyde (MDA) content, glutathione (GSH) content, superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activity were determined in renal tissue. RESULTS: Renal dysfunction, histological damage, and renal oxidative stress were significantly improved by OzoneOP or IP alone. OzoneOP + IP could not further relieve severe renal damage. Either IP or OzoneOP treatment alone increased NO release and NO synthase (endothelial, eNOS and inducible, iNOS) expression. The combination of OzoneOP and IP could not further enhance NO levels and NOS expression. CONCLUSIONS: These findings indicate that both of the preconditioning settings shared similar mechanisms of protection in the parameters measured. However, OzoneOP combined with IP had no synergistic effect. IP and OzoneOP appeared to share a common mediator: NO. These findings suggested the potential role of OzoneOP against renal failure during surgery or transplantation.

Similarities between ozone oxidative preconditioning and ischemic preconditioning in renal ischemia/reperfusion injury. Publishing Authors By Initials

H Chen,B Xing,X Liu,B Zhan,J Zhou,H Zhu,Z Chen,H Chen,B Xing,X Liu,B Zhan,J Zhou,H Zhu,Z Chen,

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Similarities between ozone oxidative preconditioning and ischemic preconditioning in renal ischemia/reperfusion injury. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Archives of medical research

VOLUME: 39

Page Numbers: 169-78

Journal Abbreviation: Arch. Med. Res.

ISSN: 0188-4409

DAY: 28

MONTH: 11

YEAR: 2007

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LANGUAGE: eng

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Grant and Affiliation Information for Similarities between ozone oxidative preconditioning and ischemic preconditioning in renal ischemia/reperfusion injury.

AFFILIATION: Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China.

Country: United States

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MEDLINETA: Arch Med Res

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