NEW YORK (GenomeWeb) – Researchers have linked a genetic variant affecting the SIM1 gene to an increased risk of erectile dysfunction among men.

Erectile dysfunction commonly occurs among men of middle age and older, and while risk factors like weight, age, and cardiovascular disease, contribute to the condition, about a third of the risk is thought to be genetic.

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Publication of He Jiankui's work on gene-edited infants would raise ethical concerns for journals, Wired and others report.

The New York Times reports that evidence linking trauma in one generation to epigenetic effects that influence subsequent generations may be overstated.

ScienceInsider reports that US National Institutes of Health researchers were told in the fall they could not obtain new human fetal tissue.

In PNAS this week: skin pigmentation evolution among KhoeSan, biomarkers for dengue virus progression, and more.