Protective effect of quercetin in combination with caloric restriction against oxidative stress-induced cell death of Saccharomyces cerevisiae cells

被引:10
|
作者
Alugoju, P. [1 ]
Periyasamy, L. [1 ]
Dyavaiah, M. [1 ]
机构
[1] Pondicherry Univ, Dept Biochem & Mol Biol, Pondicherry 605014, India
关键词
antioxidant gene deleted mutants; caloric restriction; free radicals; quercetin; Saccharomyces cerevisiae; ZN-SUPEROXIDE-DISMUTASE; LIFE-SPAN; DIETARY RESTRICTION; PEROXIREDOXIN TSA1; ADAPTIVE RESPONSE; YEAST; RESISTANCE; CATALASE; DEFENSE; MODEL;
D O I
10.1111/lam.13313
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Impairment of antioxidant enzymes activities has been well reported in several human diseases. Effective anti-ageing strategies involving antioxidant supplementation and/or caloric restriction (CR) are receiving a great attention to mitigate free radical-mediated oxidative damage in several disease conditions to improve active longevity. Therefore, in this work, we have evaluated the protective effect of quercetin under non restriction (NR) and CR conditions on the sensitivity ofSaccharomyces cerevisiaemutant strains (sod1 increment ,sod2 increment ,cta1 increment ,ctt1 increment ,tsa1 increment andglr1 increment ) deficient in antioxidant defence systems (superoxide dismutase, catalase, thioredoxin peroxidase and glutathione reductase) against H2O2-induced oxidative stress. Our results demonstrate that quercetin in combination with CR has strongly reduced the H2O2-mediated stress in the yeast mutant cells compared to NR conditions. Furthermore, we show that quercetin in combination with CR enhanced the percentage viability of yeast cells during chronological ageing. Our research findings suggest that antioxidant supplementation in combination with CR might have potent beneficial effects than individual therapies against free radical-mediated oxidative stress. Significance and Impact of the Study Oxidative stress results from an imbalance between free radicals and antioxidant defense systems in our body. Supplementation with exogenous antioxidants is necessary to neutralize the free radical mediated damage. Polyphenols are a group of naturally occurring plant compounds with strong free radical-scavenging activity and exhibits potent anti-aging property by mitigating oxidative stress. On the other hand, caloric restriction (CR) has been reported to be a popular leading anti-aging approach to ameliorate age-associate macromolecular damages in various chronic human diseases. Evaluation of protective effects of antioxidant supplementation in combination with CR against free radical mediated oxidative stress is pivotal for the development of novel anti-aging strategies to improve active longevity.
引用
收藏
页码:272 / 279
页数:8
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