نتایج جستجو برای: clofibrate
تعداد نتایج: 1289 فیلتر نتایج به سال:
In rats, clofibrate acts as a microsomal enzyme inducer and disrupts the metabolism of thyroid hormones by increasing hepatic glucuronidation of thyroxine. Whether similar effects occur in the pig has not yet been investigated. This study was performed to investigate the effect of clofibrate treatment on metabolism of thyroid hormones in pigs. To this end, an experiment with 18 pigs, which were...
Giving clofibrate 2 g daily to seven patients significantly increased the biliary cholesterol concentration while the proportion of bile acids fell. Five patients on established clofibrate treatment were given 750 mg of chenodeoxycholic acid (CDCA) daily for one month. Biliary lipid analysis after the CDCA treatment showed a significant fall in the proportion of cholesterol and a rise in that o...
Endothelin B (ETB) receptor stimulation inhibits sodium transport in a similar fashion as 20-HETE. Clofibrate, a peroxisome proliferator-activated receptor-alpha (PPAR-alpha) agonist, increases protein expression of cytochrome P450 4A (CYP4A), which is responsible for 20-HETE synthesis in the kidney. Experiments were designed to determine whether clofibrate reduces hypertension associated with ...
Expression of peroxisome proliferator-activated receptor-alpha (PPARalpha) has been shown in liver of chicks, but effects of its activation have not yet been investigated. In this study, laying hens were treated with clofibrate, a synthetic PPARalpha agonist, to investigate the effects of PPARalpha activation on liver lipid metabolism. Hens receiving a diet containing 5 g of clofibrate/kg had a...
Serum creatine kinas (C.K.), aspartate amino-transferase (G.O.T.), and alkaline phosphatase (A.P.) activities were measured in 211 men with serum cholesterol concentrations in the upper one-third of the normal distribution. Of these, 110 were receiving clofibrate and 101 were given identical capsules containing olive oil. These investigations were also carried out on 85 healthy men with low ser...
Administration of clofibrate to adult mice (20-25 mg of clofibrate/day) increased liver glycerophosphate acyltransferase (EC 2.3.1.15) activity by 2.3-fold within 24 h. This increased glycerophosphate acyltransferase activity was mainly localized in the liver microsomal fraction. Three other hypolipidemic drugs, i.e. Bezafibrate (Boehringer Mannheim Co.), Gemfibrozil (Warner-Lambert Co.) and Wy...
Feeding rats with a diet containing 0.25% clofibrate for 2 weeks elevated the hepatic NAD+ and total nicotinate levels significantly. Other peroxisome proliferators, such as 2-(4-chlorophenoxy)propionic acid and di(2-ethylhexyl)phthalate, had similar effects. When rats were fed the control diet without clofibrate for 1 week after 2 weeks of the clofibrate diet, the hepatic NAD+ level returned t...
The HMG CoA reductase and cholesterol 7a-hydroxylase activities were determined and fecal bile acids were analyzed in rats fed with a low (0. 16%) or a high (1%) cholesterol diet in order to investigate the influence of dietary cholesterol on the lithogenesity of bile in rats treated with clofibrate (a-p-chlorophenoxy isobutyl ethyl ester). The HMG CoA reductase activity displayed no change fiv...
A potentially clinically important interaction has been described between clofibrate and ibuprofen in vitro. To determine whether this in vitro interaction is paralleled by a change in pharmacokinetics of ibuprofen in vivo two groups of rats were treated orally with clofibrate (n = 8, 280 mg/kg/day) or vehicle (n = 7) for 3 days. On day 3, 2 hr after the last dose of clofibrate, the rats were g...
1. The liver microsomal metabolism of [4-14C]cholesterol, endogenous cholesterol, 7 alpha-hydroxy-4-[6 beta-3H]cholesten-3-one, 5-beta-[7 beta-3H]cholestane-3 alpha, 7 alpha-diol and [3H]lithocholic acid was studdied in control and clofibrate (ethyl p-chlorophenoxyisobutyrate)-treated rats. 2. The extent of 7 alpha-hydroxylation of exogenous [414C]cholesterol and endogenous cholesterol, the lat...
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