Plant-derived phytochemicals are promising therapeutic agents against heavy
metal–induced toxicity. This study evaluated the protective efficacy of
Carica papaya (CP) leaf and Ziziphus mauritiana (ZM) fruit pulp
ethanolic (70%) extracts against cadmium (Cd)-induced hepatorenal toxicity in
rats. Fifty-six male Wistar rats (n=7) were divided into eight groups and
treated for four weeks. CdCl₂ (5 mg/kg/day) was administered orally, whereas CP
and ZM extracts were given (separately) (300 mg/kg/day) or in combination (150
mg/kg each). Hepatic, renal, lipid, and hematological parameters, along with
antioxidant, oxidative stress, inflammatory, apoptotic, and anti-apoptotic gene
expression profiles, were assessed to determine the therapeutic potential of
both extracts. Molecular docking, comet assay, and histopathological analyses
were also performed. Data were analyzed using one-way ANOVA followed by
Dunnett’s test (GraphPad Prism, P<0.05). Cd exposure caused significant
hepatorenal dysfunction, dyslipidemia, and hematological alterations,
accompanied by elevated ALT, AST, ALP, GGT, bilirubin, urea, serum creatinine,
BUN, NGAL, KIM-1, and Semaphorin-3A. Cd also suppressed antioxidant enzymes
(SOD, CAT, GPx, GR, and GSH) and significantly increased oxidative stress,
inflammatory mediators, and pro-apoptotic gene expression, while reducing
anti-apoptotic markers. Supplementation with CP and ZM extracts, particularly in
combination, markedly improved hepatorenal, hematological, and lipid profiles,
restored antioxidant defenses and mitigated oxidative damage. Treated groups
showed reduced DNA tail length and intensity in comet assay, indicating
genoprotection. Histopathology revealed preserved hepatic and renal morphology
with minimal necrosis and inflammation. Molecular docking demonstrated strong
binding affinities of key phytochemicals with NF-κB and 2AZ5, suggesting
potential molecular mechanisms underlying the observed protective effects.
Conclusively, CP and ZM showed synergistic therapeutic efficacy against Cd
toxicity.
To Cite This Article:
Hussain S, Rafique A, Ashraf A and Asad F, 2026. Mitigation of Cadmium-induced
hepatorenal toxicity in male Wistar rats using
Carica papaya and
Ziziphus mauritiana. Pak Vet J,
46(4): 790-805.
http://dx.doi.org/10.29261/pakvetj/2026.079