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Research findings that suggest beneficial health effects of dietary supplementation with virgin coconut oil (VCO) are limited in the published literature. This study investigated the in vivo effects of a 5-week VCO-supplemented diet on lipid profile, hepatic antioxidant status, hepatorenal function, and cardiovascular risk indices in normal rats. Rats were randomly divided into 3 groups: 1 control and 2 treatment groups (10% and 15% VCO-supplemented diets) for 5 weeks. Serum and homogenate samples were used to analyze lipid profile, hepatorenal function markers, hepatic activities of antioxidant enzymes, and malondialdehyde level. Lipid profile of animals fed VCO diets showed significant reduction in total cholesterol (TC), triglyceride (TG), and low-density lipoprotein (LDL) levels; high-density lipoprotein (HDL) level increased significantly (p < .05) compared to control; and there were beneficial effects on cardiovascular risk indices. The level of malondialdehyde (MDA), a lipid peroxidation marker, remarkably reduced and activities of hepatic antioxidant enzymes-superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx)-were markedly increased in VCO diet-fed rats. The VCO diet significantly modulated creatinine, sodium (Na), potassium (K), chloride (Cl), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) compared to control. The findings suggest a beneficial effect of VCO on lipid profile, renal status, hepatic antioxidant defense system, and cardiovascular risk indices in rats.

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Background. Justicia carnea is a medicinal plant used widely in Nigeria which is reported to have diverse functions, including blood-boosting potential. Aim. The effect of the ethanol extract of Justicea carnea (JC) leaves in phenylhydrazine induced-anemia albino rats on haematological and lipid profile parameters was investigated.Methods. The experimental animals were randomly grouped into five groups of six rats each -group 1 (non--anemic control), group 2 (anemic control), group 3 (500 mg/kg of JC extract), group 4 (1000 mg/kg of JC extract) and group 5 (DMSO control). Phenylhydrazine was administered once at a dose of 80 mg/kg b.w. to induce hemolytic anemia. After 28 days of extract administration, they were humanely sacrificed and the serum collected was used for biochemical analysis. Results. In the acute toxicity study, the LD 50 was found to be above 5000 mg/kg body weight. Packed Cell Volume (PCV) values, Red Blood cell (RBC) and haemoglobin (Hb) concentrations decreased (p < 0.05) significantly after 48 hours of phenylhydrazine induction, but after 28 days of administering extracts of Justicia carnea, PCV values, RBC and Hb increased (p < 0.05) significantly. There were significant (p < 0.05) decreases in cholesterol, triacylglycerol, and LDL cholesterol concentrations in the extract-administered groups (groups 3&4) relative to the anemic control. There was a significant (p < 0.05) increase in HDL-cholesterol concentrations in the extract groups (3&4) relative to the non-anemic control. Conclusion. Extracts of Justicia carnea not only reversed anemic conditions in the phenylhydrazine-induced rats, it also improved the lipid profile, and this may be attributed to its rich phytochemical, nutrient and vitamin composition. Therefore, the findings of the study suggest that J. carnea leaves could be used to manage lipid abnormalities associated with anemia.

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