Abstract
This study aimed to evaluate the protective role of Nigella sativa oil against the adverse effects of tartrazine on male rats. 18 albino rats were divided randomly into four groups (n = 6). The first (G1) is the negative control, the second group (G2) is the positive control received 10 mg/kg b.w. tartrazine in the diet and the third (G3) received the same dose of tartrazine as in G2 and co-treated with Nigella sativa oil for 8 weeks. Tartrazine decreased total protein, antioxidants and high density lipoproteins, whereas increased liver enzyme, kidney function parameters, total cholesterol, triglycerides, low density lipoproteins and lipid peroxidation in the positive control group. In addition, it caused pathological changes in the tissues of liver, kidney, testes and stomach. Treating tartrazine supplemented rats of G3 with Nigella sativa oil for 8 weeks significantly improved all biochemical parameters and restored the tissues of kidney, stomach, testes and liver to normal. It could be concluded that N. sativa oil succeeded in protecting male rats against the adverse conditions resulted from tartrazine administration.
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