Zóster vaccine reduces the risk of dementia by 20 %
The elderly people who have presented the herpes Zóster can have a much lower risk of dementia, according to a new study Posted by “Nature”.
the study , Made in WalesIt included about 283,000 elderly. Some of them were not considered appropriate to receive the vaccine due to the privacy of the vaccination policy in the Welsh area. In 2013, the Cardiff government decided that those who reached 79 could receive the vaccine. However, due to the lack of supplies, Adults who were 80 years old or never received.
But researchers from the United States, Germany and Austria focused on people who reached 80 years during the week before the deadline of vaccination, and compared them with those who reached 80 in the following week. Almost half of those who have met the requirements that have been fortified. Seven years later, nearly one of every eight people who were not vaccinated from dementia suffered. but, Those who were vaccinated were 20 % less likely to diagnose dementiaAccording to the study.
The effects were much greater Among women Among the men. “The result was really surprising,” Pascal Gildesitzer, the lead author of the study and professor of attached medicine at Stanford University (USA). This was a huge preventive sign thereThey will look at how to look at the data. ”
Other studies have also suggested that the Zóster herpes vaccine can help maintain dementia. Last year, Another analysis It was published in “Nature Medicine” that people who received a more modern version of the Zóster vaccine had a much lower risk of dementia. In the six years that followed his vaccination.
The two vaccines are manufactured differently. The new, the most common, contains a Chickenpox chip virus, chickenpox, Which causes both chickenpox and escape. Use a Welsh study vaccine a Weak virus version. In 2023, the UK gradually canceled the virus vaccine in favor of the last GSK pharmaceutical vaccine, as it appears to provide protection against Zóster for a longer period of time.
Herpes zóster A painful eruption of pimples full of liquid that may take weeks for disappearance- may appear after years of waterproofing if the underlying virus is reactivated. The elderly and those who have The weak immune system It is at greater risk.
The modern studies were completely natural experiences similar to experiments Random articlesWhich is the golden rule for medical research. Due to the standards of the herpes vaccine, researchers can compare two groups of other identical people, allowing them to determine the potential effect of vaccination. “What makes the study very strong is that it is basically a random article with a Control set Those who are somewhat age to be able to obtain vaccination The intervention group Gildesitzer explains that those who are young are enough to be able to have vaccination. “
More studies are needed to show causation
Studies indicate that regardless of the type of injection, it can serve the Zóster herpes vaccine Some protection against dementiaAlthough more research is needed to prove this. It is also not clear about this relationship. GELDSetzer team states that viruses that affect the nervous system can increase the risk of dementia, But this theory must be proven.
At the same time, the contrast between Women and men It can be explained by The differences in their immune systemsSince they respond differently to infection and vaccines, according to Maxime Taquet, Professor at Oxford University (UK), which directed the study. “Although this is still virtual, we believe that it is related to the reason that makes us monitor the differences between men and women,” Tikit told “Euronews Health”.
To help consolidate the tests, the GSK pharmaceutical company announced last week that data is about 1.4 million elderly people in the United KingdomSome of them received their vaccine against herpes zóster and others. Like the policy change in Wales, in 2023, the UK expanded the herpes vaccination program from adults over the age of 70 years of adults over the age of 65, but it was said to those between the ages of 66 and 69 that they have to wait until 70 for vaccination.
In another normal experience, researchers will verify whether they suffer from dementia. The recent results on the herpes vaccine can be new limits Alzheimer’s researchFor decades, it has difficulty in progressing in prevention or new treatments.
Alzheimer’s disease is the most common way of dementia, which affects Seven million people in EuropeAccording to the estimates of the European Brain Council. “Defender is a huge burden,” says Tikit. He added: “The role of the appropriate immune paths in people, we can reduce or even invest the dementia.” “There are many steps between what we are now and get there, but I think it is a new and exciting path in this field.”
