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A team led by researchers from Mount Sinai this week reported the discovery that a single microRNA — miR-128 — plays a major role in nerve cell excitability and motor activity by regulating an entire neuronal signaling pathway.

The data, which were generated in mice, also show that inhibition of the miRNA triggered increased motor activity and fatal epilepsy, and that its overexpression attenuated neural responsiveness, suppressed motor activity, and alleviated the movement abnormalities associated with Parkinson's-like disease and seizures.

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According to the Wall Street Journal, the Food and Drug Administration may soon issue an Emergency Use Authorization for convalescent plasma to treat COVID-19 patients.

Minnesota police have used genetic genealogy to make an arrest in a 1986 cold case, reports NBC News.

Researchers have used CRISPR-Cas9 to efficiently target a cephalopod pigmentation gene, as they report in Current Biology.

In Science this week: chromatin accessibility of microglia during fetal development, and more.