rfi.fr/en/france/20211022-eu-research-reveals-long-term-brain-damage-caused-by-covid

A European study has found that Covid-19 can affect blood vessels in the human brain in a study that has raised more questions about the long-term consequences of the disease.

Research by French, Spanish and German scientists published Thursday in the scientific journal Nature Neuroscience reveals that, in addition to attacking the lungs, the virus can also can kill certain brain cells. (Journal here: nature.com/articles/s41593-021-00926-1)

They're known as endothelial cells and are located around the brain, protecting the cerebellum and facilitating blood flow.

Ghost vessels' block blood stream

Scientists discovered that the virus had destroyed endothelial cells by observing patients who died of Covid.

"Blood enters regions of the brain that should not normally see molecules leaving the bloodstream," said report co author Vincent Prévot, from the Inserm research centre in Lille.

"In a second stage, when the endothelial cells are completely dead, this creates a sort of 'ghost vessel' through which the blood no longer flows."

Small regions of the brain are deprived of oxygen and glucose and consequently suffer.

In short, there is a risk of microhemorrhages – not as serious as a stroke – that indicate a risk of reduced blood flow, which can have serious consequences and lead to rapid death.

Damage potentially reversible

The findings are worrying and inevitably lead to the question of whether people who have contracted Covid will inevitably fall victim to brain problems.

In the first instance, it should be pointed out that the deaths observed were rare and, above all, that the damage to the brain was potentially reversible.

"We have seen that in hamsters, who develop very minor forms of Covid-19, the phenomenon is apparently reversible, so we can hope that it could also be reversible in humans," Prévot said.

Secondly, it's difficult to know whether brain cells are specifically damaged when a person contracts Covid.

The study shows this could be the case for patients who developed a severe form of the disease. For people who have had a more minor form of the illness, however, nothing is certain.

"To find out, we would have to take blood samples every 10 minutes for a week in order to measure the presence of the virus or not in the blood," Prévot said.

"Unfortunately, this is not feasible."

In the long term, there is also the question of whether lesions on the brain might remain and affect the state of ageing of a damaged brain.

Taking the example of the Spanish flu, which happened just over a century ago, people who didn't die from it had a greater probability of developing neurodegenerative diseases such as Parkinson's later in life.

Many questions remain unanswered and it will take time and further research to get them.

Major takeaways:

- Brain damage occurs through the damage of endothelial cells by SARS-Cov2, which facilitate blood flow throughout the brain.

- Endothelial damage leads to improper blood distribution to the brain, with some places receiving blood when they shouldn’t and other places being deprived of resources.

- Brain damage has not been proven to occur in asymptomatic and minor cases as of yet. It is currently being investigated whether brain damage occurs due to sever COVID complications or from COVID contraction itself.

- Minor cases of brain damage have been prevented and reversed in hamsters, but there is no confirmation on the process working for men

The 99% survival rate crowd isnt gonna like this

they're already riding the short bus anyway

Yep, been known with how many get long term neurological symptoms

Frankly, I don’t believe this because I didn’t read this on Facebook or hear it from Joe Rogan.

This is fake. Ban op, tired of the pro-vaccine propaganda infiltrated by the libtards on ktt

In a perfect world those imma do my own research niggas would just read the s*** they said they were going to so niggas didn’t have to argue about getting a vaccine

The info available no one hiding it

I’ve linked the journal that outlines the exact experimentation regarding this topic and conclusion. It’s available for free download

Ooooh I'm f***ed I still haven't been able to smell anything after almost 10 months

Preciate you bro, make sure you stay safe I fw you

Not gonna be goin thru the article but 99.9% sure that doesn’t concern the average person nor the average covid case

It does concern the average symptomatic COVID case. Cases that lead to serve symptoms are proven to show brain damage. However, less severe cases are still unproven.

The big question that the article asks is whether brain damage occurs as a result of COVID itself being caught, or from a severe complication of symptoms. Right now it’s unanswered

Then don’t say s***

“Didn’t read the article”

“99.9% sure”

This like a nigga tryna tell me about Star Wars cause he watched pirates of the Caribbean

Why is my avy posted i havent even been itt yet

Sounds like u already got irreversible brain damage

Been known

🤔

And you'd be 100% wrong

Funny how that works