We investigated the protective effect of a natural polyphenol, magnolol, on Saccharomyces cerevisiae cells under oxidative stress, and during aging. Our results showed the sensitivity of S. cerevisiae antioxidant gene deficient mutants (sod1∆, sod2∆, cta1∆, ctt1∆, gtt2∆ and tsa1∆) against hydrogen peroxide (H2O2) and menadione stress was rescued by magnolol as demonstrated in spot and colony forming unit counts. Yeast cells pretreated with magnolol showed decreased intracellular oxidation, lipid peroxidation and an increased level of reduced glutathione. Further, SOD1, CTA1 and GTT2 gene expression was examined by reverse transcription-polymerase chain reaction, and was found that magnolol significantly attenuated the upregulation of SOD1 and CTA1 genes under oxidative stress. Finally, longevity of the wild type and sod1 mutant cells were extended by magnolol, and also enhance stress resistance against oxidant stress during chronological aging.
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| Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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| Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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| Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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| Site | Modification | Modifier | Source | Reference |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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| Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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| Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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| Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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