The brains of people who died from COVID-19 were remarkably similar to the brains of people who die from neurodegenerative diseases such as Alzheimer’s and Parkinson’s, showing inflammation and disrupted circuitry, researchers report.
His team analyzed brain tissue from eight people who died of COVID-19 and 14 people who died of other causes.
About one-third of hospitalized COVID-19 patients report neurological symptoms such as fuzzy thinking, forgetfulness, difficulty concentrating and depression, Wyss-Coray noted.
These problems can persist as part of what’s called “long COVID,” a lingering condition that sometimes affects patients after they recover from the original infection.
While there was significant inflammation in the brains of the deceased COVID-19 patients, their brain tissue didn’t have any signs of SARS-CoV-2, the virus that causes COVID-19.
Wyss-Coray pointed out that scientists disagree about whether the virus is present in COVID-19 patients’ brains.
“We used the same tools they’ve used—as well as other, more definitive ones—and really looked hard for the virus’s presence,” he said in a Stanford news release. “And we couldn’t find it.”
The study was published June 21 in the journal Nature….
Within a day of testing positive for covid-19 in June, Miranda Kelly was sick enough to be scared. At 44, with diabetes and high blood pressure, Kelly, a certified nursing assistant, was having trouble [...]
A technology developed at Vanderbilt University Medical Center has led to the discovery of an "ultra-potent" monoclonal antibody against multiple variants of SARS-CoV-2, the virus responsible for COVID-19, including the delta variant. The antibody [...]
Research has found a significant fall in levels of antibodies against SARS-CoV-2, the virus that causes COVID-19, 6 months after the second dose of the Pfizer-BioNTech vaccine. Clinical evidence also suggests that the risk [...]
Are the COVID vaccines substantially different from/inferior to other vaccines in terms of their effectiveness? The issue raised, and I'm mostly paraphrasing here, is this: Most vaccines (e.g. measles, smallpox) have efficacy defined such [...]
The EVONANO platform allows scientists to grow virtual tumors and use artificial intelligence to automatically optimize the design of nanoparticles to treat them. The ability to grow and treat virtual tumors is an [...]
Modern Approaches to Augmentation of Brain Function Available from Springer Press This book covers recent advances in neural technology that provide for enhancements for brain function. It addresses a broad range of neural phenomena [...]
Although the currently available COVID-19 vaccines are highly effective, limited manufacturing capacity and the need for cold-chain storage hinder their global distribution. A recent study tested the efficacy of a new adeno-associated virus (AAV) [...]
Fully vaccinated people were 11 times less likely to die of COVID and 10 times less likely to be hospitalized compared to the unvaccinated since highly contagious Delta became the most common variant, US [...]
The highly-infectious Delta coronavirus variant has spread to at least 174 countries worldwide, from the US to Australia, causing a surge in COVID-19 cases. The variant has mutations that help it partially escape the immune response produced by [...]
Fragile mRNA molecules used in COVID-19 vaccines can’t get into cells on their own. They owe their success to lipid nanoparticles that took decades to refine. Messenger RNA (mRNA) is having a moment. This [...]
The COVID-19 pandemic has revealed critical knowledge gaps and assumptions concerning how respiratory viruses spread between hosts. Traditionally thought to be spread mainly through large respiratory droplets produced by the coughs and sneezes of sick individuals, [...]
SARS-CoV-2 is just one of nonillions of viruses on our planet, and scientists are rapidly identifying legions of new species. Mya Breitbart has hunted novel viruses in African termite mounds, Antarctic seals and water [...]
As a team of South African researchers we have identified a new lineage of SARS-CoV-2, the virus causing COVID-19. A lineage represents a genetically distinct virus population with a common ancestor. This virus may be designated as a variant [...]