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In Cell this week, a team led by researchers at the University of Wisconsin-Madison shows that the mitochondrial deacetylase "Sirt3 is an essential player in enhancing the mitochondrial glutathione antioxidant defense system" during caloric restriction in mice, and that consequently, it "slows the progression of age-related hearing loss." The team found that, in wild-type mice, caloric restriction "reduces oxidative DNA damage in multiple tissues and prevents AHL," but it does not do so in

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Reuters reports that Germany is seeking to sequence 5 percent of patient samples that test positive for SARS-CoV-2.

23andMe and Medscape say primary care physicians are increasingly more comfortable with discussing direct-to-consumer genetic testing results.

The publisher of the Science family of journals will allow some authors to place peer-reviewed versions of their papers into publicly accessible repositories.

In Science this week: analysis of genome-wide association studies of chronic kidney disease, and more.