Evaluation of synergistic hypolipidemic activity of Murraya koenigii and atorvastatin suspension in hyperlipidemic rats

The purpose of this study is to assess the hypolipidemic potential of formulated suspensions of atorvastatin, alcoholic extract of Murraya koenigii and their combination on hyperlipidemic Wistar rats. Hyperlipidemia was induced in all groups except negative control group, using High Fat Diet (HFD). Formulated suspensions of Murayya koenigii leaf extract, atorvastatin and its combination were administered to HFD fed rats for 28 days. Treatment related changes in body weights were recorded. Extraction of Murraya koenigii was carried out by maceration. After completion of treatments, blood samples were collected immediately and serum separated was used for the estimation of lipid profile and glucose levels. Treatment with all the formulated suspensions shows significant normalization of body weight compared with positive control group (62.5±3.14) in HFD fed animals. The effect of combined suspension was more pronounced (40.08±4.86) and shows significant reduction in body weight gain, P<0.01 than that of Murraya koenigii leaf extract (57.94 ±4.36) or atorvastatin suspensions (45.97± 4.48) alone. Combined suspension also exhibits significant reduction, P<0.001 in serum TC, TG, LDL and VLDL. It also enhanced the cardio protective lipid HDL after 28 days of treatment. A significant reduction in serum glucose levels were noted with suspension of Murraya koenigii leaf extract alone, P<0.05 compared with positive control. It is possible to draw the conclusion from the current study that combining atorvastatin and Murraya koenigii leaf extract in a suspension may have had a synergistic effect on lowering body weight and hypolipidemic activity.