The Limited Times

Now you can see non-English news...

How our brain got rich in neurons

2022-09-29T16:47:51.335Z

DECRYPTION - Slight genetic mutations have favored in "Homo sapiens" a strong expansion of the neurons of our cerebral cortex.



A simple genetic mutation amplified the number of neurons present in our cerebral cortex, and in particular in its anterior part where complex cognitive operations take place, shows a study carried out by German researchers from the Max-Planck Institute in Dresden published in

Science

.

This slight genetic change was identified by comparing the sequence of our genome with that of Neanderthal man, the closest human species to us, which disappeared less than 40,000 years ago.

Among the hundred proteins differing from those of Neanderthals, an enzyme called TKTL1 caught the attention of researchers.

Its strong presence in the fetal cells at the origin of the neurons of the cerebral cortex suggested an important role in the development of the latter.

In addition, TKTL1 is also found in certain cancer cells, which are also capable of proliferating strongly.

To verify its exact role, Wieland Huttner's team introduced the human TKTL1 gene into…

This article is for subscribers only.

You have 79% left to discover.

Pushing back the limits of science is also freedom.

Keep reading your article for €0.99 for the first month

I ENJOY IT

Already subscribed?

Login

Source: lefigaro

All tech articles on 2022-09-29

You may like

Tech/Game 2022-09-12T11:14:43.777Z
News/Politics 2022-06-23T12:54:53.347Z
News/Politics 2022-07-06T17:24:02.161Z

Trends 24h

Latest

© Communities 2019 - Privacy