Natural substance rutin versus standard drug atorvastatin in a treatment of metabolic syndrome-like condition

Saudi Pharm J. 2019 Dec;27(8):1196-1202. doi: 10.1016/j.jsps.2019.10.002. Epub 2019 Oct 11.

Abstract

Background: Metabolic syndrome is a cluster of metabolic risk factors. The clear causes of its development are not known yet and there is no comprehensive treatment of this disease. There is a trend to use natural substances in the treatment of various diseases, but their effects need to be well explored. We decided to test effect of rutin compared to the effect of the standard drug atorvastatin.

Methods: As a model of metabolic syndrome we used males of hypertriacylglycerolemic rats in combination with high-fat-high-fructose diet. Rutin (100 mg/kg) and atorvastatin (50 mg/kg) were administered orally daily for 5 weeks.

Results: We determined biochemical parameters from blood: HDL-cholesterol, LDL-cholesterol, total cholesterol, triacylglycerols. Relaxation and contraction response of aorta was measured to determine vessel dysfunctions and possible predisposition to cardiovascular disease. The negative influence on cognitive functions could be associated with the development of metabolic cognitive syndrome. Therefore we aimed to monitor spatial memory by Morris water maze test. Both rutin and atorvastatin had a tendency to decrease levels of serum triacylglycerols, but only atorvastatin significantly reduced levels od LDL-cholesterol and increased HDL-cholesterol levels. Both compounds significantly reduced the phenylephrine-induced contractile response of the aorta and improved the relaxation response. Further, treated animals learned better compared to untreated rats in the Morris water maze.

Conclusion: Based on our results we can assume that atorvastatin and rutin had positive effect on spatial memory and vessel reactivity. Atorvastatin optimized lipid profile of blood serum.

Keywords: ACh, acetylcholine; AD, Alzheimer disease; ANOVA, one-way analysis of variance; Aorta; Atorvastatin; Dyslipidemia; GLUT-4, glucose transporter 4; Glc, glucose; HDL-cholesterol, high density lipoprotein cholesterol; HFFD, high-fat-high-fructose diet; HMG-CoA, β-hydroxy β-methylglutaryl-CoA; HTG, hypertriacylglycerolemic; HTG-HFFD, hypertriacylglycerolemic rat with high-fat-high-fructose diet; HTG-HFFD-A, hypertriacylglycerolemic rat with high-fat-high-fructose diet with atorvastatin; HTG-HFFD-R, hypertriacylglycerolemic rat with high-fat-high-fructose diet with rutin; IRS-1, insulin receptor substrate 1; LDL-cholesterol, low density lipoprotein cholesterol; MWM, Morris water maze; MetS, metabolic syndrome; Metabolic syndrome; NOS, NO synthase; O 2 ¯ , superoxide anion; OGTT, oral glucose tolerance test; PKC, proteinkinase C; PXR, pregnane X receptor; ROS, reactive oxygen species; Rutin; SEM, standard error of the mean; Spatial memory; TG, triacylglycerols; cAMP, cyclic adenosine monophosphate; eNOS, endothelial NO synthase.