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