Researchers Find Effects Of The Corona Virus Covid-19 On The Brain Related To Smell

Suara.com – New research shows the effects of the Covid-19 coronavirus on the brain, including areas linked to smell and memory.

The findings of this study reveal the effects of the Covid-19 coronavirus in detail and the way the virus spreads through the central nervous system.

Evidence that the COVID-19 coronavirus causes brain-related disorders has been found in previous studies, which focused on patients hospitalized for severe infections.

The difference with the research conducted by Gwenaëlle Douaud and colleagues is that this study looked at its effect on cases of mild Covid-19 corona virus infection.

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This means that this research uncovers the mechanisms that contribute to the disease or brain damage caused by the Covid-19 coronavirus.

Illustration of the Corona Covid-19 virus.  (Doc. Envato)
Illustration of the Corona Covid-19 virus. (Doc. Envato)

Oxford University senior research fellow Max Taquet, whose work involves using brain imaging to characterize and treat psychiatric disorders, said this was the first large-scale study to investigate the actual changes in the brain that can occur after a coronavirus infection.

“This study also looks at the risk of neurologic and psychiatric problems associated with the Covid-19 coronavirus in some people, including brain fog, loss of taste and smell, depression, and psychosis,” said Max Taquet. Newsweek.

Taquet added that it sheds light on this important question by showing that areas of the brain connected to the brain’s olfactory center can shrink after being infected with the Covid-19 coronavirus.

The study’s lead author, Douaud and colleagues reached their findings by investigating the brain changes of 785 coronavirus patients aged 51 to 81, who had had two brain scans spaced an average of 38 months apart.

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From this sample, 401 UK Biobank participants suffered from coronavirus infection between 2 scans and another 15 were hospitalized.

The research team identified a reduction in gray matter thickness in brain regions associated with smell and memory.

Patients infected with the coronavirus also appear to show tissue damage in areas associated with the sense of smell and a reduction in brain size.

The research team compared their results with those of patients with pneumonia, who found changes exclusive to those with coronavirus.

Head of Neuropsychopharmacology at Imperial College London, David Nutt, believes that this study confirms the opinion of psychiatrists and neurologists who had predicted that the coronavirus would cause neuro-psychiatric complications in some people early in the pandemic.

“Essentially, this is a very methodological study with controls before and after coronavirus infection. But, now we need studies that determine what it really means in terms of cognitive function and quality of life,” said Dr. Benedict Michael, honorary consulting neurologist at the University of Liverpool.