Silicon is the element very similar to carbon, and bioactive siliconized compounds have therefore received much attention. Siliconization of a compound enhances its biological activities. In the present study the hypolipidemic effect and toxicity of clofibrate and its siliconized analog, silafibrate, were compared. The experiments were performed in hypercholesterolemicWistar rats. Animals recei...

Background: Utilization of energy-dense lipid fuels is critical to the rapid development and growth of neonates. Objective: To increase efficiency of milk fat utilization by newborn pigs, the effect of clofibrate on in vivo and in vitro longchain fatty acid (LCFA) oxidation was evaluated. Methods: Newborn male pigs were administered 5 mL of vehicle (2% Tween 80) with or without clofibrate (75 m...

The induction of liver cytochrome P450 4A-catalyzed fatty acid a-hydroxylase activity by clofibrate and other peroxisome proliferators has been proposed to be causally linked to the ensuing proliferation of peroxisomes in rat liver. Since female rats are less responsive than males to peroxisome proliferation induced by clofibrate, the influence of gender and hormonal status on the basal and clo...

Dear Editor, Clofibrate is an activator of peroxisome proliferators-activated receptors (PPARS). This agent has been used for decreasing lipid levels in adults for years.1,2 It is also a glucuronyl transferase inducer which may increase bilirubin conjunction and excretion and not only has a therapeutic effect on hyperbilirubinemia in term neonates but also prevents hyperbilirubinemia in preterm...

A specific and sensitive method is described for the detection of clofibrate in biological fluids. The drug is separated from associated fatty acids by thin-layer chromatography and the methyl ester is quantified by gas-liquid chromatography. Recovery is excellent, and any small losses are corrected with an internal recovery standard. Although more time-consuming than other available techniques...

The effects of treatment of rats with clofibrate, bezafibrate, and ciprofibrate on the hepatic metabolism of cholesterol were studied in rat liver microsomes. HMG-CoA (3-hydroxy-3-methylglutaryl coenzyme A) reductase activity, regulating cholesterol biosynthesis, was unaffected by clofibrate and ciprofibrate and slightly decreased (20%) by bezafibrate. Also cholesterol 7 alpha-hydroxylase activ...

Fibrates, as hypolipidemic drugs known as agonists of peroxisome proliferator-activated receptors, diminish inflammatory responses. Studies have shown that incorporation of a silicon atom into a drug structure improves its pharmacological potency, modifies its selectivity toward a given target, or changes its metabolic rate, in addition to increasing the lipophilicity of the compounds. A silico...

The suggestion that clofibrate (Atromid-S; ethyl 2p (chlorophenoxy) -2-methylpropionate) is effective in the treatment of acute angle-closure glaucoma was recently made by Orban, Hanisch, and Vereb (i 966). These authors had previously observed a rise in the concentration offree fatty acids and in blood viscosity just before and during an attack of congestive glaucoma. Although clofibrate effec...

PPARαs are nuclear receptors highly expressed in colon cells. They can be activated by the fibrates (clofibrate, ciprofibrate etc.) used to treat hyperlipidemia. Since PPARα transcriptional activity can be negatively regulated by JNK, the inhibition of JNK activity could increase the effectiveness of PPARα ligands. We analysed the effects of AS601245 (a JNK inhibitor) and clofibrate alone or in...

Silicon is the element very similar to carbon, and bioactive siliconized compounds have therefore received much attention. Siliconization of a compound enhances its biological activities. In the present study the hypolipidemic effect and toxicity of clofibrate and its siliconized analog, silafibrate, were compared. The experiments were performed in hypercholesterolemicWistar rats. Animals recei...