Astaxanthin supplementation reduces dichlorvos-induced cytotoxicity in Saccharomyces cerevisiae

3 Biotech
S J SudharshanMadhu Dyavaiah

Abstract

This study evaluates the protective effect of astaxanthin against dichlorvos cytotoxicity in yeast Saccharomyces cerevisiae. Dichlorvos induce a dose-dependent cytotoxicity in yeast cells, which is mediated by oxidative stress. Our experimental results showed pre-treatment with astaxanthin enhances cell viability by 20-30% in yeast cells exposed to dichlorvos. A decrease in DCF fluorescence intensity and lipid peroxidation, increased SOD activity, and glutathione levels in astaxanthin-treated cells indicate that astaxanthin protected the cells against dichlorvos-induced oxidative stress. Reduced chromatin condensation and nuclear fragmentation in astaxanthin pre-treated cells also indicate that astaxanthin rescued the cells from dichlorvos-induced apoptosis. Our overall results suggest that dichlorvos induces oxidative stress-mediated cytotoxicity in yeast cells, and that was rescued by astaxanthin pre-treatment.

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Citations

Jun 23, 2021·FEMS Microbiology Letters·Bhavana VeerabhadrappaMadhu Dyavaiah

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