Ancient viruses responsible for our big brains and bodies: study

February 16, 2024

Ancient viruses that infected vertebrates hundreds of millions of years ago played a pivotal role in the evolution of our advanced brains and large bodies, a study said Thursday. Ghosh's search landed upon a particular sequence derived from an endogenous retrovirus, long lurking in our genes, which the team dubbed "RetroMyelin." Myelin enables rapid impulse conduction without widening the diameter of nerve cells, allowing them to be packed closer together. In myelin's absence, invertebrates have found other ways to transmit signals faster -- giant squids for example have evolved wider nerve cells. "One tends to think of viruses as pathogens, or disease causing agents," said Franklin.

The source of this news is from Tuoi Tre News

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