Long COVID brain fog may be due to damaged blood vessels in the brain
▻https://www.sciencenews.org/article/long-covid-brain-fog-blood-brain-barrier-damage
The result suggests there is a biological basis for this symptom
Leakiness in the brain could explain the memory and concentration problems linked to long COVID.
In patients with brain fog, MRI scans revealed signs of damaged blood vessels in their brains, researchers reported February 22 in Nature Neuroscience. In these people, dye injected into the bloodstream leaked into their brains and pooled in regions that play roles in language, memory, mood and vision.
It’s the first time anyone’s shown that long #COVID patients can have leaky blood brain barriers, says study coauthor Matthew Campbell, a geneticist at Trinity College Dublin in Ireland. That barrier, tightly knit cells lining blood vessels, typically keeps riffraff out of the brain, like bouncers guarding a nightclub.
#maladie_vasculaire #covid_long #barrière_hémato-encéphalique #cerveau #neurologie