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Insert Barry Bonds Joke Here

Forget about brain doping. The New York Times reports on a study showing that a certain genetic variation can mask steroid use from current tests given to athletes. In the research, 55 men were injected with testosterone and then given a urine test; 17 tested negative for the hormone. The discovery was that those 17 men were all "missing both copies of a gene used to convert the testosterone into a form that dissolves in urine," the article says. "The result is that they may be able to take testosterone with impunity." Does this mean that some people are genetically designed to cheat?

 

The Scan

LINE-1 Linked to Premature Aging Conditions

Researchers report in Science Translational Medicine that the accumulation of LINE-1 RNA contributes to premature aging conditions and that symptoms can be improved by targeting them.

Team Presents Cattle Genotype-Tissue Expression Atlas

Using RNA sequences representing thousands of cattle samples, researchers looked at relationships between cattle genotype and tissue expression in Nature Genetics.

Researchers Map Recombination in Khoe-San Population

With whole-genome sequences for dozens of individuals from the Nama population, researchers saw in Genome Biology fine-scale recombination patterns that clustered outside of other populations.

Myotonic Dystrophy Repeat Detected in Family Genome Sequencing Analysis

While sequencing individuals from a multi-generation family, researchers identified a myotonic dystrophy type 2-related short tandem repeat in the European Journal of Human Genetics.