Abstract
Aldrin (ALD), a persistent-organic-pollutant (POP), an organochlorine-cyclodiene-pesticide is highly toxic in nature. Titanium dioxide nanoparticles (TNP) are widely used for various industrial applications. Despite the remarkable research on pesticide toxicity, the work with impact of nanoparticles on POP has been dealt with marginally. Chemicals co-exist in the environment and exhibit interactive effects. An investigation was carried out to evaluate the individual and combined effects of ALD (6 ppm) and TNP (60 ppm) exposure at sub-lethal concentration for 24 h in zebrafish. Significant reversal of lipid peroxidation level in liver and brain tissues and restoration in enhanced catalase activity in all examined tissues were observed in combined group. For other parameters, combined exposure of ALD and TNP does not show significant reversal action on ALD toxicity. Further studies are inline to understand combined effects of both to achieve significant reversal of ALD toxicity by TNP nanoparticles with threshold concentration of aldrin.
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