ArticleVeterinary research communications2025
Modulatory effects of Portulaca oleracea-Enriched diets against waterborne Cadmium-Induced hepatotoxicity in nile Tilapia fingerlings: involvement of oxidative stress and Inflammation-Related gene regulation.
Article in Veterinary research communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Cadmium (Cd²⁺) contamination severely threatens aquatic organisms, leading to oxidative stress, inflammation, and hepatotoxicity. Portulaca oleracea is known for its antioxidant and anti-inflammatory activities; yet, its defensive role against Cd²⁺-induced hepatotoxicity in Nile tilapia (Oreochromis niloticus) is still unclear. The current study evaluated the possible hepatoprotective effects of purslane leaf powder (PR) against Cd²⁺-induced liver damage and its mechanisms. A hepatotoxicity model was established by exposing tilapia to Cd²⁺ (50 µg/L) for 60 days, with and without PR supplementation (10 g PR/kg diet). Histopathological analysis, biochemical assays, and real-time quantitative PCR were done to assess liver tissue damage, oxidative stress markers, lipid profile, and inflammatory gene expression. Results showed that Cd²⁺ exposure induced severe hepatic alterations, including glycogen depletion, steatosis, necrosis, and inflammatory infiltration, along with increased liver indices and obvious dyslipidemia. PR supplementation significantly alleviated these changes by reducing oxidative stress, enhancing antioxidant enzyme activity, upregulating antioxidant genes (sod-1, sod-2, cat, gpx, and cyp1a), and downregulating inflammatory markers (mapk1, nf-κb, il1β, il6, il8, and tnf-α). Additionally, PR improved lipid profile and liver morphology, and reduced hepatocyte damage compared to the Cd²
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