Influence of atorvastatin and carboxymethylated glucan on the serum lipoprotein profile and MMP activity of mice with lipemia induced by poloxamer 407
Abstract:The effects of atorvastatin and carboxymethylated β-glucan (CMG) on the lipoprotein-cholesterol (LP-C) and lipoprotein-triglyceride (LP-TG) fractions and subfractions at the early stage of murine hyperlipidemia, and its pleiotropic anti-inflammatory effects, were studied. Atorvastatin and CMG were administered in ICR male mice with acute lipemia induced with a single injection of poloxamer 407 (P-407). A novel small-angle X-ray scattering method for the determination of fractional and subfractional composition of LP-C and LP-TG was used. In P-407-treated animals, there was a drastic increase of total cholesterol and especially TG. Atorvastatin decreased both the total cholesterol and TG, but not to control levels. CMG primarily decreased TG and was not as potent as atorvastatin. P-407 increased atherogenic LDL-C (IDL-C and LDL1–3-C subfractions) and very low-density lipoprotein-C (VLDL-C) (VLDL1–2-C and VLDL3–5-C subfractions) fractions, with an increase of the total anti-atherogenic HDL-C fraction (HDL2-C subfraction). Atorvastatin treatment of lipemia was followed by a decrease in the total LP-C, total LDL-C (LDL1–3-C subfraction), and the LDL1–3-TG subfraction. Additionally, atorvastatin treatment resulted in an increase in the serum matrix metalloproteases activity both in control and P-407-treated mice. In general, high-dose atorvastatin therapy exerts its lipid-lowering and pleiotropic effects in the early stages of acute lipemia induced in mice by treatment with P-407.
Keywords: atorvastatin; atorvastatine; carboxymethylated β-glucan; carboxyméthyl β-glucane; fractions et sous-fractions de lipoprotéines; hyperlipidémie; lipemia; lipoprotein fractions and subfractions; matrix metalloproteases; métalloprotéinases matricielles
Document Type: Research Article
Affiliations: 1: Institute of Physiology, Siberian Branch of the Russian Academy of Medical Sciences, Novosibirsk, Timakov Street 4, 630117, Russia. 2: Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia. 3: University of Missouri–Kansas City, Kansas City, MO 64108, USA. 4: Institute of Cytology and Genetics, Russian Academy of Sciences, Novosibirsk, Russia.
Publication date: 2012-02-20
- Published since 1929, this monthly journal reports current research in all aspects of physiology, nutrition, pharmacology, and toxicology, contributed by recognized experts and scientists. It publishes symposium reviews and award lectures and occasionally dedicates entire issues or portions of issues to subjects of special interest to its international readership.
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Terms & Conditions
- Sample Issue
- Reprints & Permissions
- Ingenta Connect is not responsible for the content or availability of external websites