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Something Else That Can Cause Cancer

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Many people take aloe vera supplements to stay healthy — more specifically to keep their guts healthy. But now, researchers at the US National Toxicology Program have found that too much of the extract can cause tumors in the intestines instead of keeping them healthy, reports New Scientist's Peter Aldhous. For the study, rats were given drinking water spiked with high doses of a whole-leaf extract of aloe over the course of two years. Nearly 40 percent of female rats and 74 percent of male rats given the spiked water developed tumors, both malignant and benign, in their large intestines, Aldhous says. The researchers say it's not yet clear what this means for people, and are designing and second round of experiments, but these could last for several years.

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.