Glycine prevents alcohol-induced liver injury by decreasing alcohol in the rat stomach

Gastroenterology
Y IimuroR G Thurman

Abstract

Inactivation of Kupffer cells prevents alcohol-induced liver injury, and hypoxia subsequent to a hypermetabolic state caused by activated Kupffer cells probably is involved in the mechanism. Glycine is known to prevent hepatic reperfusion injury. The purpose of this study was to determine whether glycine prevents alcohol-induced liver injury in vivo. Male Wistar rats were exposed to ethanol (10-12 g.kg-1.day-1) continuously for up to 4 weeks via an intragastric feeding protocol. The effect of glycine on the first-pass metabolism of ethanol was also examined in vivo, and the effect on alcohol metabolism was estimated specifically in perfused liver. Glycine decreased ethanol concentrations precipitously in urine, breath, peripheral blood, portal blood, feces, and stomach contents. Serum aspartate amino-transferase levels were elevated to 183 U/L after 4 weeks of ethanol-treatment. In contrast, values were significantly lower in rats given glycine along with ethanol. Hepatic steatosis and necrosis also were reduced significantly by glycine. Glycine dramatically increased the first-pass elimination of ethanol in vivo but had no effect on alcohol metabolism in the perfused liver. Glycine minimizes alcohol-induced liver injury in viv...Continue Reading

Citations

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