Toll-like receptor-4 (TLR-4) has been increasingly recognized as playing a critical role in the pathogenesis of ischemia-reperfusion injury (IRI) of renal grafts. This review provides a detailed overview of the new understanding of the involvement of TLR-4 in ischemia-reperfusion injury of renal grafts and its clinical significance in renal transplantation. TLR-4 not only responds to exogenous ...

Xu Z, Prathapasinghe G, Wu N, Hwang SY, Siow YL, O K. Ischemia-reperfusion reduces cystathionine-synthase-mediated hydrogen sulfide generation in the kidney. Am J Physiol Renal Physiol 297: F27–F35, 2009. First published May 13, 2009; doi:10.1152/ajprenal.00096.2009.—Cystathionine-synthase (CBS) catalyzes the rate-limiting step in the transsulfuration pathway for the metabolism of homocysteine ...

The activation of poly (ADP-ribose) synthetase (PARS) subsequent to DNA damage caused by reactive oxygen or nitrogen species has been implicated in several pathophysiological conditions, including ischemia-reperfusion injury and shock. The aim of this study was to investigate whether PARS inhibitors could provide protection against renal ischemia-reperfusion injury in the rat in vivo. Male Wist...

Cystathionine-beta-synthase (CBS) catalyzes the rate-limiting step in the transsulfuration pathway for the metabolism of homocysteine (Hcy) in the kidney. Our recent study demonstrates that ischemia-reperfusion reduces the activity of CBS leading to Hcy accumulation in the kidney, which in turn contributes to renal injury. CBS is also capable of catalyzing the reaction of cysteine with Hcy to p...

renal ischemia-reperfusion (ir) injury is a common problem in kidney transplantation. there is increasing evidence about the role of the reactive oxygen species (ros) in these injuries and endogenous antioxidants seem to have an important role in decreasing the renal tissue injury. the aim of this study was to investigate the effects of kidney ir on renal antioxidant enzymes activity such as ca...

Purpose: To investigate the effect and possible mechanism of combination of apigenin and ischemic post conditioning on renal ischemia-reperfusion injury in rats. Materials and methods: Fifty rats were randomly separated into 5 groups: (1) sham-operation groups: a midline laparotomy was performed only; (2) I/R group: rats were underwent 45 min of renal ischemia; (3) apigenin group: rats was subj...

Introduction: This study was designed to evaluate the effects of treatment with flaxseed oil (FSO) on renal ischemia-reperfusion (RIR) injuries in rats. Materials and methods: In this study, 32 Wistar rats were randomly studied in four groups: Co+NS (Control group with normal saline administration), Sh+NS (sham group with normal saline administration), RIR+NS and RIR+FSO. FSO (0.2 ml) was ...

Renal ischemia-reperfusion injury is a major cause of acute kidney injury. We previously found that renal A(1) adenosine receptor (A(1)AR) activation attenuated multiple cell death pathways including necrosis, apoptosis, and inflammation. Here, we tested whether induction of cytoprotective sphingosine kinase (SK)-1 and sphingosine-1-phosphate (S1P) synthesis might be the mechanism of protection...

Renal Ischemia/reperfusion injury (IRI) is characterized by the restriction of blood supply, followed restoration flow and re-oxygenation. Reperfusion itself paradoxically exacerbates tissue injury, threatening function, viability organ. IRI usually associated with a variety homeostatic changes that involve reduced energetics, oxidative processes contribute to mitochondrial dysfunction. Dependi...