Title: HYPOLIPIDEMIC EFFECT OF VITEX DONIANA ETHANOLIC EXTRACT ON POLOXAMER INCLUDED HYPERLIPIDEMIA
Author(s): V.D. Sheneni, P.R.O. Edogbanya, J.E Olajide1, A. Omede1 and R.E. Jegede
To determine the effect of Vitex doniana (leaves stem and root bark) ethanolic extract on lipid profiles of Poloxamer 407 (P407) induced hyperlipidemic and normal rats. Fifty-four mixed sex rats weighing 100-200g were divided into nine groups comprising six animals per group: group given feed and water only, group induced by an intra-peritoneal injection of P407 every 48 hours without treatment, groups induced and treated with atorvastatin, leaves, stem bark, root bark extracts and groups of normal rats treated with leaves, stem bark and root bark extracts without induction. In all the groups, P407, atorvastatin, leaves, stem bark and root bark extracts were administered at a dose of 1000mg/kg, 20mg/kg, 100mg/kg, 100mg/kg and 30mg/kg body weight respectively. At the end of the 21 days, the animals were sacrificed and blood sample were collected for determination of serum levels of: Total cholesterol (TC), Triacylglycerides (TAG), High-density lipoprotein cholesterol (HDL-c) and Low-density lipoprotein cholesterol (LDL-c). The studies showed that all induced treated groups significantly (P<0.05) lowered serum levels of TC, TAG, LDL-c and significantly (P<0.05) increased HDL-c when compared to the P407 induced hyperlipidemic control. The normal treated groups showed no significant (P>0.05) difference in the serum levels of TC, TAG, LDL and HDL when compared to the normal control group. Calculation of atherogenic risk predictor indices of the induced treated groups showed that all the extracts significantly (P<0.05) lowered the LDL-c/HDL-c, log (TAG/HDL-c) and significantly (P<0.05) increased HDL-c/TC ratio when compared to the P407 induced hyperlipidemic control group. The atherogenic risk predictor indices of normal treated groups showed no significant difference (P>0.05) in LDL-c/HDL-c, Log (TAG/HDL-c) and HDL-c/TC ratio when compared to the normal control group. The study demonstrates the phytotherapeutic effect of Vitex doniana (leaves, stem and root bark) ethanolic extractin poloxamer 407 induced hyperlipidemia.
KEYWORDS: Hyperlipidemia, Phytotherapeutic, Poloxamer 407, Polyphenol, Rats, Vitex doniana.