Abstract
Adult males of the quail Coturnix coturnix were exposed to lead acetate trihydrate in drinking water (0.1, 0.25, 0.5, and 1% for one–six months) to investigate histological and histochemical alterations induced by lead intoxication in the liver. Chronic exposure to subtoxic concentrations of lead produced changes in hepatocytes, portal veins, Kupffer cells, and blood sinusoids. Alterations in hepatocytes mainly involved cytoplasmic vacuolation, necrosis, cytolysis, and glycogen accumulation. Kupffer cell hyperplasia, hemosiderosis, blood sinusoidal dilatation, portal vein congestion, and edema were also observed. No fibrosis or cirrhosis in the liver of any member of the dose groups over the entire period of the study was noted. The findings revealed that chronic exposure to lead produced mild histological and histochemical changes in the liver of the quail Coturnix coturnix.
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