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Effect of black seed oil supplementation on selected immunological, hematological and Iron status parameters in ribavirin treated female albino rats.

Ribavirin has been found to enhance the anti HCV potential of pegylated interferon and sovaldi. However its use was associated with impact on the hemopoietic system and iron status. The hemopoietic toxicity, sometimes forced patients to reduce the dosage or to discontinue treatment in rare occasions. The main purpose of the present study was to assess the potential of black seed oil, a known potent antioxidant, to ameliorate the negative impact of ribavirin on hematological indices, iron status and natural immunity in rats. Twenty four female albino rats were equally divided into four groups as follows: Group1, served as negative control and received an oral dose of (0.5 ml) saline. Group 2, served as positive control and were given 30 mg/kg/day doses of Ribavirin for / 5 days/ week for 4 weeks. Group 3, which were orally fed a 1ml/kg/ of black seed oil for 5 day/week for 4 weeks. Group 4, which were orally given the above mentioned doses of black seed oil plus ribavirin / 5 days/ week for 4 weeks. The results demonstrated that treatment with ribavirin induced significant decrease in absolute neutrophils count, RBCs count, haemoglobin concentrations (Hb), Packed Cell Volume percentage (PCV%) and liver total iron binding capacity (TIBC). On the other hand, it induced significant increases in serum and liver iron, liver ferritin, transferring saturation % compared to control group. Black seed oil treatment increase absolute neutrophil count and restored RBCs count, Hb concentration and PCV percentage to normal control level. It also significantly reduced serum iron and liver total iron in animals treated ribavirin. Black seed oil supplementation also enhanced serum IgM and IgG concentrations in ribavirin treated rats. In conclusion, black seed oil had the potential to ameliorate the negative effect of ribavirin on the hemopoietic system offering better chances for completion of HCV treatment course with full dose. It also has proven to have the ability to reduce serum and liver iron load and enhance natural IgM and IgG levels.

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