This study was done to investigate the effect of ischemia-reperfusion injury on cytosolic and mitochondrial glutathione levels in the rat kidney. Glutathione is the main cellular defense against free radicals that are thought to cause ischemia-reperfusion injury. Right kidneys from anesthetized female Lewis rats (9-12 months old) were exposed to 60 minutes of ischemia followed by 0, 30, or 120 minutes of reperfusion. The kidneys were perfused with isotonic saline, harvested, homogenized, and separated into cytosolic and mitochondrial fractions by differential centrifugation. Reduced (GSH) and oxidized (GSSG) glutathione levels were measured spectrophotometrically. There were significant decreases in both the GSH levels and the % GSH/Total Glutathione in the cytosol and mitochondria of kidneys exposed to ischemia-reperfusion injury when compared to control kidneys. The glutathione levels in either the cytosol or mitochondria did not recover even after 120 minutes of reperfusion. This study demonstrates that 60 minutes of ischemia followed by 0, 30, or 120 minutes of reperfusion decreases both cytosolic and mitochondrial levels of glutathione in the rat kidney. / Department of Physiology and Health Science
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/187065 |
| Date | January 2001 |
| Creators | Becker, Bryan A. |
| Contributors | Zamlauski-Tucker, Marianna J. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | vii, 52 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
Page generated in 0.0034 seconds