This study was initiated to anticipate the potential protective effects of flavonoid-rich fractions of Hibiscus rosa-sinenses flowers (HF) and leaves (HL) on cadmium (Cd)-induced toxicity in adult albino rabbits. Cd, being a prominent environmental pollutant, poses a threat for its widespread range of toxic expressions. A dramatic increase in total phenolics, flavonoids, and antioxidant capacity has been observed in flavonoid-rich fractions of HF and HL as compared to their crude extracts, suggesting for the rationale for their use in this study. Thirty-six male rabbits were indiscriminately allocated into six groups, including control, Cd (6.1 mg Cd/kg/day), HF and HL (200 mg HF & HL /Kg/day), Cd+HF, and Cd+HL (receiving the same doses of Cd, HF, and HL) groups. Treatment (p.o) for 60 days resulted in improvement of weight gain in Cd+HF and Cd+HL groups in comparison with the Cd group. Treatment with Cd+HF showed better results than Cd+HL by significantly decreasing (p<0.05) transaminases (AST, ALT), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT), and creatinine and urea levels, while total bilirubin and albumin were increased on the 15th, 30th, 45th, and 60th days in a progressive manner when compared with the Cd receiving group. Likewise, the Cd+HF group showed better activities than Cd+HL by significantly increasing (p<0.05) superoxide dismutase, catalase, and vitamins C and E, while LPO and Cd concentrations were significantly decreased in the liver and kidney tissues when compared with Cd-intoxicated bucks. Values of these parameters in only HF and HL-receiving groups were near the control. The histopathological studies for these tissues have also sustained the above-mentioned data. Thus, these outcomes suggest that the flavonoid-rich fraction of HF may act as a potent hepatic and renal protective agent than HL against Cd-induced toxicity in animal models.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.