Oral arginine supplementation in acute liver injury (original) (raw)
Acute liver failure is accompanied by a high rate of bacterial and septic complications. Arginine has a potent effect on the immune system and modulates bacterial clearance in septic models. We studied the effect of oral arginine supplementation on the extent of liver injury and the associated bacterial translocation in an acute liver injury model in rats. Sprague-Dawley rats were divided into normal, liver injury, and arginine-supplemented groups. In the arginine group, 2% arginine was supplemented daily through a nasogastric tube for 8 d. Acute liver injury was induced on the eighth day by intraperitoneal injection of D-galactosamine ( 1.1 g/kg body wt). Samples were collected 24 h after the liver injury. In the argininesupplemented group, alkaline phosphatase, bilirubin, and aspartate aminotransferase were reduced significantly compared with the acute liver injury control group. The results of bacterial translocation in the arginine-supplemented group showed a significantly reduced number of translocated bacteria to the liver and mesenteric lymph nodes than occurred in the acute liver injury group. The histological study of the liver in the arginine-supplemented group showed scattered areas of hepatocellular necrosis and inflammatory cell infiltration, and in the acute liver injury group there were more and widespread hepatocellular necrosis and inflammatory cell infiltration. Oral supplementation of arginine in an acute liver injury model improves significantly the state of the liver injury and reduces bacterial translocation to the liver and mesenteric lymph nodes. Nutrition 1996; 12:529-533
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