MRI scans of long COVID patients with brain fog suggest that the blood brain barrier may be leaky.
. 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.
If the barrier breaks down, bloodborne viruses, cells and other interlopers can sneak into the brain’s tissues and wreak havoc, says Avindra Nath, a neurologist at the National Institutes of Health in Bethesda, Md. It’s too early to say definitively whether that’s happening in people with long COVID, but the new study provides evidence that “brain fog has a biological basis,” says Nath, who wasn’t involved with the work.
Campbell’s team studies repetitive head trauma. They knew that traumatic brain injuries can disrupt the blood brain barrier — and that people with these injuries sometimes report having brain fog. That mental muddling reminded the team of what people with long COVID can experience. Maybe the blood brain barrier disruption seen in some concussion patients applies to long COVID brain fog, too, the researchers surmised.
In long COVID patients with brain fog , dye injected into the bloodstream tends to leak into the brain more so than in people without brain fog .But until now, no one knew if this kind of damage persisted long after the initial infection subsided. The team scanned the brains of 32 people, 10 of whom had recovered from COVID-19, and 22 with long COVID. Of those with long COVID, half reported having brain fog.
South Africa Latest News, South Africa Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Four years since national COVID-19 emergency: The enduring battle with long COVIDIt has officially been four years to the day since the Trump administration declared a national emergency for COVID-19.Nearly 1.2 million Americans lost their l
Read more »
Four years since national COVID-19 emergency: The enduring battle with long COVIDIt has officially been four years to the day since the Trump administration declared a national emergency for COVID-19.Nearly 1.2 million Americans lost their l
Read more »
Leaky Blood Vessels: Underlying Cause of Long COVID “Brain Fog” DiscoveredScience, Space and Technology News 2024
Read more »
KIRO Nights on dating rules, timeframes: How long is too long to wait?Deborah Graham's mention of the rule of threes provoked some polar opposite opinions from listeners.
Read more »
Small study shows a possible reason some long COVID patients experience 'brain fog'The study was conducted by researchers at Trinity College in Ireland.
Read more »