New research shows that COVID-19 impairs cognitive function in people with all types of dementia, which could also help us understand the impact of the disease on healthy brains.
A new study shows that after infection with the Covid-19 virus, all types of dementia behave like rapidly progressive dementia. Neuroscience News.
It is referred to as brain fog
Since the first wave of COVID-19, neurologists have noted that the disease causes acute and long-term neurological syndromes and neuropsychiatric sequelae.
Until now, knowledge about the effects of COVID-19 on our cognition has been sketchy, and neurologists have referred to it as “brain fog”.
It all had a rapid deterioration
A group of researchers who wanted to dispel the fog investigated the effects of the disease on cognitive impairment.
They examined the effects on 14 patients with dementia, five with vascular dementia, four with Alzheimer’s disease, three with cognitive impairment due to Parkinson’s disease, and two with frontotemporal dementia.
The researchers found that patients with all types of dementia included in the study developed rapidly progressive dementia after COVID-19.
Even in patients with dementia with malignant onset, slowly progressive dementia, who were previously cognitively stable, a rapid, aggressive, worsening disease course was seen.
Increased understanding of the impact on healthy brains
“We speculated that there should be some adverse effect of the COVID-19 virus in patients with pre-existing dementia, and extrapolated our understanding from the cognitive impact of this viral infection in patients without dementia,” Sofik Dube And Julien Benito Lyon For Neuroscience News.
Sofik Dubey, of the Department of Neurology at the Bangor Institute of Neurosciences in Kolkata, India, and Julien Benito Leon, of the Department of Neurology at 12 de October University Hospital in Madrid, Spain, are two of the researchers behind the study. .
Dementia has become more similar
In addition to finding that all the different types of post-Covid-19 dementia in all patients behaved like rapidly progressive dementia, they found that it became difficult to distinguish between the different types of dementia.
The researchers also found that the characteristics of a certain type of dementia changed after COVID-19 and that vascular dementia and degenerative dementia began to behave like mixed dementia.
The results of the study suggest that already weakened brains have little defense against other infections, weakened immune systems and infections.
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Read more: Covid-19 infection may lead to an increase in the number of dementia cases [Dagens PS]
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