Glycyrrhizic acid modulates the atrazine-induced apoptosis in rabbit spleen
2019
Morgan, Ashraf M. | Ibrahim, Marwa A. | Hussien, Ahmed M.
Atrazine (ATR) is a common herbicide used worldwide. It is a potent endocrine disruptor that causes hormonal imbalance. We investigated the modulatory role predisposed by glycyrrhizic acid (GA) against the hazardous effects caused by the ATR in the rabbit spleen. Sixty rabbits were assigned into 4 groups. The first group is the negative control; the ATR group received 1/10 of the oral LD ₅₀ ATR; the GA group received 50 mg/kg body weight daily intraproteinally; and group 4 received both ATR and GA concurrently. ATR and GA administrations were done for 60 days. ATR-induced humoral immunotoxicity was illustrated by decreased serum total protein, albumin, and globulin levels and rabbit hemorrhagic disease virus antibody titer, 4 weeks after vaccination. Moreover, upregulation of spleen Fas and caspase-III genes was recorded in ATR-exposed rabbits. Clear splenocyte apoptosis was observed in the immunohistochemical examination by the caspase-III technique. GA diminished the ATR-induced splenocyte apoptosis through downregulation of Fas and caspase-III expressions. In conclusion, our findings bounced a new perspective into the mechanism by which ATR induces immunotoxicity and assumed the potential modulatory role of GA.
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