Covid leading to loss of grey matter, hits cognition: Study

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The scans showed loss of grey matter, indicative of damage, and the areas affected involved functions relating to smell and taste, cognition and memory formation. Most of the patients examined had mild-to-moderate disease. | Latest News India
Covid-19, even if mild or moderate, is possibly leaving people with significant impact on their brains, according to a study involving pre- and post-infection brain scans involving close to 800 people in a study carried out in the UK.

The scans showed loss of grey matter, indicative of damage, and the areas affected involved functions relating to smell and taste, cognition and memory formation. Most of the patients examined had mild-to-moderate disease.

"We identified significant effects of Covid-19 in the brain with a loss of grey matter in the left parahippocampal gyrus, the left lateral orbitofrontal cortex and the left insula. When looking over the entire cortical surface, these results extended to the anterior cingulate cortex, supramarginal gyrus and temporal pole," said the researchers, who work with the University of Oxford, in their report on medRxiv, which is yet to be peer-reviewed.

The study was conducted after the researchers pored over data of 40,000 people in the UK Biobank, a long-term, large scale repository of biomedical data, and reached out to volunteers. In all, 782 people who previously underwent brain scans participated, and of these, 394 subsequently tested positive for Sars-Cov-2.

The researchers used the scans of these people from before their infection and carried out…
HT Correspondent
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