POSSIBLE HYPOCHOLESTEROLEMIC EFFECT OF GINGER AND ROSEMARY OILS IN RATS|
Eissa, Fatma A.; Choudhry, Hani; Abdulaal, Wesam H.; Baothman, Othman A.; Zeyadi, Mustafa; Moselhy, Said S. & Zamzami, Mazin A.
Background: Hypercholesterolemia is a major risk factor for development of atherosclerosis. The present study was conducted to evaluate the potential effect of ginger oil alone or combined with rosemary oil as hypocholesterolemic
agent in rats fed high fat diet.
Materials and methods: Healthy female albino rats (n=80) weighting about (150-180 g) were included in this study
divided into two equal groups; Group (I): were fed on the basal diet. Group (I) were divided into 4 subgroups each 10:
Group (Ia): negative control. Group (Ib): Rats received i.p 2.5 g/Kg b.w of ginger oil. Group (Ic): rats received i.p 2.5
g/Kg b.w of rosemary oil. Group (Id): Rats received i.p 5 g/Kg b.w mixture of ginger oil and rosemary oil (1:1). The
second main groups; Group (II): high fat diet (HFD) were fed on the basal diet plus cholesterol (1%), bile salt (0.25%)
and animal fat (15%) to induce hypercholesterolemia for six weeks. Group (II) was divided into 4subgroups: Group
(IIa): HFD. Group (IIb): HFD were treated with i.p 2.5 g/Kg b.w ginger oil. Group (IIc): (n=10) HFD were treated with
i.p 2.5 g/Kg b.w rosemary oil. Group (IId): (n=10) HFD were treated with i.p 5 g/Kg b.w mixture of oils.
Results: It was found that HFD rats showed a significant elevation in glucose, total cholesterol, triglyceride, GOT,
GPT, alkaline phosphatase and a reduction in serum HDL-c compared with negative control. Treatment with ginger
oil, rosemary oil and their mixture modulated the elevation of these parameters. Histopathological examination of the
liver tissue of HFD rats showed a lipid deposition and macrophage infiltration and stenosis of hepatic vein. Treatment
with mixture oils preserves normal structure of liver.
Conclusion: It was concluded that, hypocholesterolemic effect was related to the active oil content as Rosemary oil
contain - α-pinene, Camphor, cineole, borneol and Ginger oil contain Linalool, Terpineol ,Borneol , Eucalyptol.
Ginger Oil; Rosemary Oil; Rats; Hypocholesterolemia