Resistant Gene Mutation Origin Discovered
- Berlin - A genetic mutation, dating back thousands of years, provides resistance to HIV, a virus that has only existed for less than a century, according to a...
- Danish scientists have traced a genetic mutation that confers resistance, and in some cases immunity, to HIV back to the Black Sea region.
- Simon Rasmussen, a professor at the University of Copenhagen and co-author of the study, stated that the genetic variant originated in an individual who lived near the Black...
Ancient gene Mutation Offers Protection Against HIV
Table of Contents
Berlin – A genetic mutation, dating back thousands of years, provides resistance to HIV, a virus that has only existed for less than a century, according to a new study.
Black Sea Region Origin
Danish scientists have traced a genetic mutation that confers resistance, and in some cases immunity, to HIV back to the Black Sea region. The research involved analyzing DNA from hundreds of skeletons.
Simon Rasmussen, a professor at the University of Copenhagen and co-author of the study, stated that the genetic variant originated in an individual who lived near the Black Sea between 6,700 and 9,000 years ago. This individual, from the late Neolithic or Bronze Age, is believed to be the common ancestor of all present-day carriers of the mutation.
The study, published in the journal Cell, reveals that approximately 18% to 25% of Danes carry this gene variation. This mutation impacts the CCR5 receptor protein, a key target in some of the most effective HIV treatment methods.
A Fortuitous Coincidence?
Rasmussen noted the remarkable nature of the revelation, given HIV’s relatively recent emergence. “It’s almost a coincidence and very captivating that a genetic variation that was created thousands of years ago also protects against a modern virus like HIV,” he said.
Researchers analyzed over 900 skeletons, spanning from the early Stone Age to the Viking era, to locate the mutation. They developed an AI model to identify the genetic marker in ancient DNA and also examined the DNA of 2,000 living individuals.
Kirstine Ravn, the study’s first author, explained that the data allowed them to pinpoint the mutation’s origin in time and place. The mutation disappeared for a period before reappearing and spreading rapidly. “Combine this with our knowledge about human migration, we can also determine the region from which the mutation originated,” Ravn said.
Paradoxical Survival Advantage
Researchers explored the evolutionary advantage of the gene variation,considering HIV’s recent emergence. Leonardo Cobuccio, another first author of the study, suggested that individuals with the mutation may have had “better chances of survival” due to a weakened immune system during times of exposure to new pathogens.
while a weakened immune system might seem counterintuitive, researchers believe it could have been beneficial in certain situations. They cite examples where excessive immune reactions, such as severe allergic reactions or specific cases of coronavirus infections, can be fatal.
Cobuccio and Ravn attribute the mutation’s spread to societal changes. “When people completed the transition from hunter and collector’s life to companies that lived closely together in agricultural communities,the pressure took place infectious diseases to,and a more balanced immune system could have been an advantage,” they stated.
HIV and AIDS: How the Mutation Protects
HIV (human immunodeficiency virus) remains a critically important global health threat. UNAIDS, the joint United Nations program, estimates that approximately 1.3 million people were infected with HIV in 20
# Ancient Gene Mutation Offers Protection Against HIV: Your FAQ Guide
Welcome! This article delves into the fascinating finding of an ancient genetic mutation that provides resistance to HIV. We’ll explore the origins of this mutation, how it works, adn its implications for the ongoing fight against HIV/AIDS.
## What is the significance of this ancient gene mutation?
This genetic mutation, dating back thousands of years, offers protection against HIV, a virus that has only existed for less than a century. This finding is remarkable as it suggests that a genetic adaptation, developed long before the emergence of HIV, can provide resistance against this modern virus.
## Where did this protective gene mutation originate?
Danish scientists have traced the genetic mutation that confers resistance, and in some cases immunity, to HIV, back to the Black Sea region. The research involved analyzing the DNA from hundreds of skeletons.
## How was the origin of this mutation persistent?
Researchers analyzed the DNA of over 900 skeletons, spanning from the early Stone age to the Viking era. They employed an AI model to identify the genetic marker in ancient DNA and also examined the DNA of 2,000 living individuals. Data allowed them to pinpoint the mutation’s origin in time and place.
## Who was the common ancestor of those with the mutation?
The research indicates that the genetic variant originated in an individual who lived near the Black Sea between 6,700 and 9,000 years ago, during the late Neolithic or Bronze Age. This individual is believed to be the common ancestor of all present-day carriers of the mutation.
## How common is this gene variation today?
Approximately 18% to 25% of Danes carry this gene variation.
## How does this mutation protect against HIV?
This gene variation impacts the CCR5 receptor protein,a key target in some of the most effective HIV treatment methods. The mutation alters the CCR5 receptor, making it tough for HIV to enter and infect cells.
## Is it a coincidence that this ancient mutation protects against a modern virus?
Yes,it’s almost a coincidence! Researchers noted the remarkable nature of the revelation,given HIV’s relatively recent emergence.
## What is the evolutionary advantage of this mutation?
Researchers suggest that individuals with the mutation may have had “better chances of survival” due to a weakened immune system during times of exposure to new pathogens. While a weakened immune system might seem counterintuitive, it could have been beneficial in certain situations where excessive immune reactions could be fatal.
## How did this mutation spread?
Societal changes likely played a role. The transition from hunter-gatherer lifestyles to settled agricultural communities may have increased exposure to infectious diseases. The mutation’s protective affect could have provided an advantage in these circumstances.
## How does the CCR5 mutation affect HIV and AIDS?
The CCR5 receptor is a crucial component for HIV’s ability to enter and infect human cells. The mutation disables this receptor, thus blocking HIV from infecting the cells. The following table summarizes the effect of this mutation:
| Aspect | Effect of the Mutation |
|---|---|
| CCR5 Receptor | Altered, making it harder for HIV to enter cells. |
| HIV Infection | Reduces the likelihood of HIV infection. |
| HIV Treatment | Impacts the effectiveness of HIV treatment methods. |
## What is the current HIV/AIDS global situation?
HIV (human immunodeficiency virus) remains a critically meaningful global health threat. UNAIDS estimates that approximately 1.3 million people were infected with HIV in 2022.