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Hepatic 3-hydroxy-3-methylglutaryl coenzyme A reductase activity and cholesterol 7 alpha-hydroxylase activity in
Steroids
|July 1, 1979
Abstract:
Optimal assay conditions for hepatic HMG-CoA reducatase activity and cholesterol 7 alpha-hydroxylase activity in the guinea pig were determined. These two enzyme activities were studied in the liver of newborn guinea pigs during the first three postnatal weeks. Hepatic HMG-CoA reductase activity of neonatal guinea pigs was similar to that of adult animals. However, cholesterol 7 alpha-hydroxylase activity of newborns was about one-third of that in adult guinea pigs. This finding suggests that the system for bile acid synthesis in the neonatal guinea pigs is underdeveloped.