Postconditioning (PostC), a series of brief ischemia/reperfusion (I/R) cycles at reperfusion onset, is a recently described approach to attenuate I/R injury in the heart and brain. Here, we examined its effect on acute kidney injury (AKI) induced by ischemia/reperfusion (I/R) injury in a mouse model. C57/black mice were subjected to right nephrectomy and 26-min left renal artery occlusion, and ...

Objectives: Ischemia/reperfusion (I/R) injury is commonly seen in cardiovascular surgery, activates inflammation and causes renal damage. In this experimental study, we aimed to assess the effects of different doses (5 30 mg/kg) methylprednisolone (MP), which has anti-inflammatory effect, on ischemia/reperfusion injury. Methods: Thirty-two male Wistar albino rats were randomly divided into four...

Experimentally, females show an improved ability to recover from ischemia-reperfusion injury (IRI) compared with males; however, this sex-dependent response is less established in humans. Here, we developed a series of murine renal ischemia and transplant models to investigate sex-specific effects on recovery after IRI. We found that IRI tolerance is profoundly increased in female mice compared...

Reactive oxygen species (ROS) contribute to the ischemia-reperfusion injury. In kidney, the intracellular sources of ROS during ischemia-reperfusion are still unclear. In the present study, we investigated the role of the catecholamine-degrading enzyme monoamine oxidases (MAOs) in hydrogen peroxide (H2O2) generation after reperfusion and their involvement in cell events leading to tissue injury...

CD4+ T cells contribute to the pathogenesis of ischemia-reperfusion injury, which is the primary cause of delayed graft failure after kidney transplantation. The TIM-1:TIM-4 pathway participates in the activation/differentiation of CD4+ T cells, suggesting that it may modulate ischemia-reperfusion injury. Here, we studied the role of TIM-1 in a murine uninephrectomized renal ischemia-reperfusio...

The vascular network is a major target of ischemia-reperfusion, but has been poorly investigated in renal transplantation. The aim of this study was to characterize the remodeling of the renal vascular network that follows ischemia-reperfusion along with the most highly affected cortex section in a preclinical renal transplantation model. There were two experimental groups. The first was a graf...

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 ...

PURPOSE: To analyze the influence of chlorpromazine on renal histology of rats submitted to ischemia and reperfusion injury. METHODS: Sixteen Wistar rats - split in two groups - have been used: control group, receiving 3 mg/kg isotonic saline solution through caudal vein, and, the chlorpromazine group, receiving 3 mg/kg-IV of such medication. The nephrectomy of the left kidney lower third was...

BACKGROUND Detection of acute kidney injury (AKI) is still a challenge if conventional markers of kidney function are within reference range. We studied the sensitivity and specificity of NGAL as an AKI marker at different degrees of renal ischemia. METHODS Male C57BL/6J mice were subjected to 10-, 20- or 30-min unilateral renal ischemia, to control operation or no operation, and AKI was eval...

S TUDIES on the influence of renal ischemia on kidney function have indicated that following a period of ligation of the renal pedicle (and the subsequent release of the ligature) there is a decrease in clearance of paraaminohippuric acid (C,,,) greater proportionally than the decrease in both renal plasma (RPF) (I) and renal blood flow (RBF) (2). Selkurt (3) has shown that the extraction ratio...