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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Hypolipidemic effect of NK-104 and other 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors in guinea pigs.

Hypolipidemic effects of various HMG-CoA reductase inhibitors (statins) were examined in guinea pigs. After 2-week administration of NK-104 ((+)-monocalcium bis((3R,5S,6E)-7-[2-cyclopropyl-4-(4-fluorophenyl)-3-quinolyl]-3, 5-dihydroxy-6-heptenoate), CAS 147526-32-7), simvastatin (SV), pravastatin (PV), fluvastatin (FV), cerivastatin (CV) and atorvastatin (AV) to guinea pigs at various doses, which did not affect body weight, plasma and liver lipids were measured. Liver endoplasmic reticulum (ER) was isolated and measured for lipid content and activity of ER enzymes (NK-104: 3 mg/kg, SV: 30 mg/kg). Each statin except CV dose-dependently lowered total cholesterol (TC), with NK-104 showing the greatest effect. Only NK-104 and AV, long-acting statins, significantly lowered triglycerides (TG). A significant reduction of the liver cholesterol content was observed for NK-104 and AV. The liver TG content increased with dose for SV or PV, but not for NK-104 or AV. The TG content in ER and activity of diacylglycerol acyltransferase of ER, increased with SV and slightly with NK-104. Activity of microsomal triglyceride transfer protein, which is necessary for both apoB particle formation at rough ER and TG droplet production at smooth ER, increased by SV but not by NK-104. It is suggested that statins with prolonged action lower TG by decreasing cholesterol ester supply necessary for very low density lipoprotein formation and by attenuating an increase in TG production at ER after HMG-CoA reductase inhibition.[1]

References

  1. Hypolipidemic effect of NK-104 and other 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors in guinea pigs. Suzuki, H., Yamazaki, H., Aoki, T., Tamaki, T., Sato, F., Kitahara, M., Saito, Y. Arzneimittel-Forschung. (2001) [Pubmed]
 
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