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  • Title: Effect of etiroxate on LCAT activity and on certain energy metabolism enzymes in the rat.
    Author: Dobiásová M, Vítek V, Kopecká J.
    Journal: Physiol Bohemoslov; 1982; 31(4):323-7. PubMed ID: 6215662.
    Abstract:
    Etiroxate (Skleronorm Grünenthal R) was administered 42 days to male Wistar rats and their serum and liver cholesterol and triglyceride levels, the rate of esterification of free cholesterol in their plasma by lecithin cholesterol acyltransferase (LCAT) (EC 2.3.1.43) and thriosephosphate dehydrogenase (TPDH) (EC 1.2.1.12), lactate dehydrogenase (LDH) (EC 1.1.1.27), hexokinase (HK) (EC 2.7.1.1), c-glycerol-3-phosphate dehydrogenase (GPDH) (EC 1.1.1.8), malate dehydrogenase (MDH) (EC 1.1.1.37) citrate synthase (CS) (EC 4.1.3.7) and hydroxyacylcoenzyme A dehydrogenase (HOADH) (EC 1.1.1.35) activity were determined in their liver. After 14 and 28 days, animals given etiroxate (600 micrograms/kg) had smaller weight increments than the controls and a significantly lower plasma free and esterified cholesterol level, but a significantly higher liver cholesterol concentration. Their final plasma and liver cholesterol concentrations did not differ significantly from the control values. Plasma triglyceride levels were significantly raised in treated animals at all the given intervals. LCAT activity was significantly higher throughout the whole time of treatment, with the maximum increase in the last phase. Glycolytic and oxidative enzyme activities were significantly raised, whereas GPDH activity was the same as in the controls. The results show that etiroxate accelerates cholesterol turnover in the endogenous pool by activating LCAT and stimulating energy metabolism.
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