ArticleBiological trace element research2026
Biochanin-A, Coenzyme Q10, and Phloretin Mitigate Cadmium-Induced Pulmonary and Testicular Toxicity in Mice Through Modulating Oxidative Stress and Apoptosis Via SIRT1-NRF2-KEAP1 Signaling Pathway.
Article in Biological trace element research, 2026. 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 (Cd) is a widely distributed environmental heavy metal contaminant that harms animals and humans, particularly in the lung and testicular tissues. Exposure to Cd leads to oxidative stress, inflammation, and cellular injury, which are involved in multiple organ dysfunction. In the current study, we investigated the potential curative effects of biochanin-A (BCA), coenzyme Q10 (CoQ10), and phloretin (PHL) and the underlying mechanisms through which these natural compounds mitigate Cd-induced pulmonary and reproductive damage. Mice were administered orally with Cd (75 ppm) along with the i.p. dose of CoQ10 (10 mg/kg), BCA, and PHL (50 mg/kg each, respectively). After the 2 week treatment period, tissues of interest were harvested, and a wide range of biochemical assays, DNA damage assay, histopathological examinations, and gene expression analyses were performed. The Cd-treated group showed a decrease in body weight and motile sperms with alterations in lung and testis somatic index. Furthermore, the Cd-intoxication group showed increasing levels of malondialdehyde (MDA) and protein carbonyl content (PCC) with concomitant decrease in superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), reduced glutathione (GSH), and total thiol (TT) activity. Additionally, comet assay, DNA degradation, and altered SIRT1, Nrf2, KEAP1, HO-1, NQO1, SOD2, CYP1A1, TLR9, NLRP3, TNFα, IL-1β, CAS-8, and CAS-3 mRNA expressions corroborated with the above findings. Alternatively, treatment with the selected antioxidants attenuated the biochemical alterations, DNA degradation, histological aberrations, and mRNA gene expressions respectively. In conclusion, our study sheds light on the stimulation of Nrf2-mediated xenobiotic metabolizing enzymes alongside inhibition of pro-inflammatory axis and apoptotic cascade, which mitigated cellular damage and were implicated in the favorable actions of BCA, CoQ10, and PHL against Cd-triggered pulmonary and testicular oxidative stress.
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