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Severe corona course: Neanderthal genes increase risk, say researchers from the Max Planck Institute

2020-09-30T12:51:14.709Z


In their study, researchers at the Max Planck Institute in Leipzig found a connection between severe corona courses and a Neanderthal gene. Now there are other amazing discoveries.


In their study, researchers at the Max Planck Institute in Leipzig found a connection between severe corona courses and a Neanderthal gene.

Now there are other amazing discoveries.

  • The coronavirus * has so far claimed more than half a million deaths worldwide.

  • A study by Hugo Zeberg and

    Svante Pääbo

    establishes a connection between a severe course of Covid-19 and a Neanderthal gene.

  • The research duo presents new findings in the journal Nature.

Update from September 30th

: A

Neanderthal man

who lived thousands of years ago is now

becoming a risk

for

Covid-19 patients

.

It's just a

DNA sequence

, but the genetic inheritance increases the

risk of being

artificially ventilated with Sars-CoV-2.

Scientists from

Max Planck Institute for Evolutionary Anthropology in Leipzig found this out in the summer according to a study (

see first report from July 11, 2020 below

).

Now the research team

Hugo Zeberg

and

Svante Pääbo has

specifically analyzed the gene cluster and made an amazing discovery.

The DNA sequences in the examined cluster are

very similar

to those of a

50,000-year-old Neanderthal from Croatia

, they explain in the journal Nature.

 "It turned out that modern humans inherited this gene variant from the Neanderthals when they mixed with each other about 60,000 years ago," says Zeberg, according to a press release from the Max Planck Society.

"The probability that people who have inherited this gene variant will have to be artificially ventilated if they are infected with the new Sars-CoV-2 coronavirus is about three times higher."

There are significant differences in the distribution of this

genetic risk variant

in different parts of the world.

It is particularly common in

people in South Asia

, where around half of the population has the

Neanderthal variant in their genome

.

In

Europe

, one in six people (16 percent) inherited the risk variant - in Africa and East Asia, however, the variant hardly occurs at all.

There is no explanation why people with this gene variant have a higher risk.

“It is terrifying that the Neanderthals' genetic heritage should have such tragic implications during the current pandemic.

Why this is so must now be researched as quickly as possible, ”says Svante Pääbo, Director at the Max Planck Institute for Evolutionary Anthropology.

Neanderthal gene reason for severe corona courses?

Researchers find connection

First report from July 11, 2020

Munich / Leipzig - the

corona virus

has so far claimed more than half a million deaths

worldwide

.

Some

risk factors

*

that can contribute to a severe

Covid-19

course are already known.

The result of a study by

Hugo Zeberg

and

Svante Pääbo

from the

Max Planck Institute

for Evolutionary Anthropology in

Leipzig

now establishes a connection between the risk of a severe course of the disease and a

segment of the genetic material

inherited

from

Neanderthals

.

The study was published on the

preprint server bioRxiv

, so it has not yet been reviewed by independent scientists.

Corona: Researchers establish a connection between the Neanderthal gene and severe disease

In their study, the researchers observed

3,199 Covid-19 patients

who were admitted to a hospital.

According to the results of

Zeberg

and

Pääbo

, people who have a high proportion of the so-called haplotype have a higher risk of a severe

corona

course.

The

haplotype

describes a section on chromosome 3 of the human genome.

The study shows that

around eight percent of people

in

Europe

carry this genome.

In

South Asia,

however, it is more widespread with around 30 percent of the population, and most common in

Bangladesh

with a prevalence of 63 percent.

The major genetic risk factor for severe COVID-19 is inherited from Neandertals 🦠🧬 https://t.co/T9RlGf3VVh pic.twitter.com/R9JLi4gr3E

- Spencer Wells (@spwells) July 3, 2020

Corona: Zeberg and Pääbo confirm the results of a previous study

The scientists were able to confirm the results of a study * from the beginning of June.

The researcher

David Ellinghaus

from Kiel had determined

a connection between two gene segments and a severe

Covid-19

course

based on data from

Italy

and

Spain

.

On the one hand, a gene variant on chromosome 9, where the ABO gene is located, on which a person's blood group depends, and on the other hand, the gene variant on chromosome 3.

Corona: Why does this haplotype exist in today's population?

Andre Franke

, director of the Institute for Clinical Molecular Biology at the

University of Kiel

, who was involved in the Ellinghaus study, explained that the study by

Zeberg

and

Pääbo was

certainly interesting, but had no direct clinical effects.

The question is why this haplotype still exists in today's population. 

“Most of the Neanderthal genome, around 95 percent in our genomes, was negatively selected.

If the main risk hyplotype for Covid-19 remains, it must also play a positive role, ”said

Franke

Corona: Preprints often get too much attention

Jeanette Erdmann

, director of the Institute for Cardiogenetics at the

University of Lübeck,

thinks that the

attention that the study by the two

Max Planck researchers

is 

receiving is excessive

.

She was also involved in the Ellinghaus study.

“In my opinion, Zeberg and Pääbo's work is far too thin for publication;

I can hardly imagine that the work will be published to the extent presented in a specialist journal, ”explained

Erdmann

.

"Discussions that used to take place within the institute or across working groups at congresses are now often the subject of so-called preprints and receive a lot of public attention before the peer review process," added the scientist.

As a result, results would be cheered at an early stage, which in retrospect might turn out to be wrong.

Also interesting: A study by AOK Bayern * shows the different spread of the corona virus within Munich's city districts. 

(ph) * merkur.de is part of the nationwide Ippen-Digital network

List of rubric lists: © picture alliance / Federico Gambarini / dpa

Source: merkur

All news articles on 2020-09-30

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