This Week in Cell

In Cell Metabolism this week, researchers at the University of Iowa report two mRNA signatures of skeletal muscle atrophy — 63 mRNAs regulated by fasting in both human and mouse muscle, and 29 mRNAs regulated by both fasting and spinal cord injury in human muscle — which they applied to query the Broad Institute's Connectivity Map.

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A phylogenetic analysis indicates two venomous Australian spiders are more closely related than thought, the International Business Times reports.

Technology Review reports that 2017 was the year of consumer genetic testing and that it could spur new analysis companies.

In Science this week: CRISPR-based approach for recording cellular events, and more.

A new company says it will analyze customers' genes to find them a suitable date, though Smithsonian magazine says the science behind it might be shaky.