TNF-α-mediated cardiorenal injury after rhabdomyolysis in rats.

The TNF-α serum level increases after rhabdomyolysis and is involved in the subsequent cardiorenal injury. In the present study, we investigated the TNF-α-dependent cell signaling pathways implicated in cellular injury in these organs. Rhabdomyolysis was induced by intramuscular glycerol injection in rats.

p53-Mediated oxidative stress and tubular injury in rats with glycerol-induced acute kidney injury.

Background/aims: p53 is a transcriptional factor that responds to severe cell damage promoting the transcription of proapoptotic and prooxidant genes. In this study, we evaluated the role of p53 activation in glycerol-induced acute kidney injury (Gly-AKI).

Methods: Rats were treated with p53 inhibitor (pifithrin-α) in the moment we injected glycerol.

Silymarin exacerbates p53-mediated tubular apoptosis in glycerol-induced acute kidney injury in rats.

Background/aims: Silymarin is an herbal extract with antioxidant properties that can reduce oxidative stress-mediated injuries in murine models of liver, heart, and kidney diseases. Silymarin can also increase p53-mediated cellular apoptosis in vitro. We tested the effect of silymarin administration before glycerol-induced acute kidney injury (Gly-AKI) in rats.

Endogenous hepatocyte growth factor attenuates inflammatory response in glycerol-induced acute kidney injury.

Background: Hepatocyte growth factor (HGF) is overexpressed after acute kidney injury (AKI). The aim of this study was to evaluate the role of endogenous HGF in the progression of the inflammatory response in glycerol-induced AKI (Gly-AKI) in rats.

Methods: Renal and systemic HGF expressions were evaluated during the development of Gly-AKI.

Attenuation of glycerol-induced acute kidney injury by previous partial hepatectomy: role of hepatocyte growth factor/c-met axis in tubular protection.

Background/aims: Previous partial hepatectomy (HPTX) can attenuate glycerol-induced acute kidney injury (Gly-AKI). The aim of this study was to explore the pathophysiological mechanisms and the role of hepatocyte growth factor (HGF) in kidney protection.

Methods: Rats were subjected to HPTX 24 h before glycerol administration.

Effects of melatonin administration to rats with glycerol-induced acute renal failure.

Melatonin, the pineal hormone with antioxidative properties was administered to rats with glycerol-induced myoglobinuric acute renal failure (Gly-ARF). This model is characterized by acute tubular necrosis mediated by heme-iron oxidative stress. Rats received melatonin (20 mg/kg) concomitant and 3 h after glycerol injection.