The natural RNAi mechanism can be directed by either short interfering RNA (siRNA) or microRNA (miRNA). 1 There are four key steps in the RNAi pathway. When miRNA acts as the guide for RNAi, only a ...

How does a cell know when it’s been damaged? A molecular alarm, set off by mutated RNA and colliding ribosomes, signals danger. When the sun shines on your skin, what does it hit? When it causes a ...

Sean Ryder, professor at UMass Chan Medical School, has written a book to delve the mysteries of ribonucleic acid as a tool to fight diseases. Messenger ribonucleic acid, or mRNA, is in the public ...

The United States Food and Drug Administration has just approved the first-ever clinical trial that uses CRISPR-Cas13 RNA ...

Oceans churned with lava. Air filled thick with smoke. Asteroids stormed down incessantly. Life during the Hadean Eon four billion years ago was a struggle, and yet that was when it began. 1,2 With no ...

Over the last few years, scientists and entrepreneurs have flocked to developing medicines that target RNA, the genetic blueprint that cells in our bodies use to make proteins. RNA has been in the ...

40,000-year-old RNA from permafrost-preserved tissue was recovered from a mammoth specimen known as Yuka. Molecular evidence from Yuka revealed a correction to the original assumption about Yuka’s sex ...