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A new study in the UK, which analyzed brain scans before and after the deadly coronavirus infection, found that there is “substantial loss of gray matter in those who have recovered from Covid-19”.
The loss of gray matter foreshadows damage to certain areas of the brain. According to experts, this suggests damage to areas of the brain.
As part of the study, UK Biobank (UKB) performed brain imaging tests on more than 40,000 participants before the start of the Covid-19 pandemic.
It is the data center that collects and collates genetic and health information. Scientists then invited hundreds of these participants for a second imaging visit in 2021. They then studied the effects of the deadly coronavirus in the brain. This was done using data from 782 participants in the reimaging study.
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Scientists used structural and functional brain scans before and after the Covid-19 infection. It helped them compare the changes in the brain between those 394 Covid patients and 388 controls (those who tested negative) who were matched for age, gender, ethnicity, and interval between scans. .
Most of the Covid patients who were examined had mild to moderate illness in the past.
Published in the journal Medrxiv, the study said, “The vast majority of brain imaging studies so far have focused on the qualitative and overall pathology of moderate to severe cases, often performed in hospitalized patients. It is not known, however, whether the impact of COVID-19 can be detected in the mildest cases, quantitatively and automatically, and whether this may reveal a possible mechanism for the spread of the disease. ”
This is not the first study that has suggested evidence for a link between COVID-19 and brain damage. A study published in the journal The Lancet Psychiatry last year said that severe infection with COVID-19 can potentially damage the brain, further contributing to complications such as stroke or dementia-like symptoms.
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