Abstract
BackgroundLiver disease is the major cause of serious health problem leading to morbidity and mortality worldwide and the problem has increased in search for hepatotherapeutic agents from plants. The present study was designed to compare the probable hepatoprotective activity of olive oil and N. sativa oil on CCl4 induced liver damage in male rats.MethodsForty males of a new model of albino rats (Wistar strain) (175–205 g) were divided into four groups. The 1st Group (G1) was the negative control group, the remaining rats were injected with CCl4 (1 ml/kg body weight) with equal amount of olive oil on the 1st and 4th day of every week for 4 weeks. The 2nd group (G2) was the positive control, the 3rd group (G3) and the fourth group (G4) were treated orally with N. sativa oil and olive oils using stomach tube.ResultsThe positive control group showed an increase in hepatic enzymes, total bilirubin, creatinine, uric acid, lipid peroxide total cholesterol, triglyceride, low density lipoprotein, very low density lipoproteins, interleukin-6, and a decrease in antioxidant enzymes, high density lipoprotein cholesterol, a decrease in total protein and albumin an when compared with negative control group. Histology of the CCl4 treated group revealed inflammation and damage of liver cells. Treating the hepatotoxic rats with olive oil and N. sativa oil showed a significant improvement in all biochemical tests compared with the positive CCl4 control group. In addition, the liver tissues of olive oil treated group showed mild improvement in inflammatory infiltration and in N. sativa oil treated group showed normal hepatocytes with no evidence of inflammation.ConclusionThis study revealed that olive oil and N. sativa oil have a protective effect against CCl4-induced hepatotoxicity in male rats. Nigella sativa oil was more effective than olive oil.
Highlights
Liver disease is the major cause of serious health problem leading to morbidity and mortality worldwide and the problem has increased in search for hepatotherapeutic agents from plants
This study indicates that olive oils and Nigella sativa has a protective effect against Carbon tetrachloride (CCl4)-induced impaired liver damage in male rats
No significant differences in heart, liver, kidneys and testes weight was observed after injection of CCl4 in rats for 28 daysays compared to the negative control
Summary
Liver disease is the major cause of serious health problem leading to morbidity and mortality worldwide and the problem has increased in search for hepatotherapeutic agents from plants. Liver is a multipurpose organ of the body that controls internal chemical environment [1] It handles the metabolism and excretion of drugs and other xenobiotics from the body thereby providing protection against foreign substances by detoxifying and eliminating them [2]. Liver purifies enthetic chemical molecules through oxidation, reduction and/or conjugation [3] It is certainly affected by free radical and causes disease hepatitis, Liver injury or dysfunction is well known as a serious health problem [7] and can be produced by toxic chemicals, drugs, and virus infiltration from ingestion or infection [8]. Exposure of diverse environment pollutants and xenobiotics such as alcohol, paracetamol, carbon tetrachloride (CCl4), thioacetamide are the major cause of liver disorder, which damage the liver by producing reactive oxygen species [5] which are extremely toxic and produce injury in the. CCl4 hepatotoxicity causes increased blood flow and cytokine accumulation that are characteristic of tissue inflammation
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