Possible cause of ‘mental fog’, one of the sequelae of covid-19 affecting memory and attention, discovered

Ginna Paola Forero

3 February, 2022

The researchers identified participants with different cognitive symptoms as potential risk factors such as diabetes and high blood pressure, and a history of anxiety disorders.

A recent study reveals the possible cause behind ‘mental fog,’ a condition that affects people who have contracted coronavirus or have suffered from the disease for a prolonged period.

The work, published in the journal Annals of Clinical and Translational Neurology, was carried out by a group of researchers from the University of California at San Francisco (USA) and has shown that ‘brain fog’ is closely related to abnormalities in cerebrospinal fluid—a colorless fluid that bathes the brain and spinal cord—like conditions found in people with other infectious diseases.

For the analysis, 32 adults who had contracted the disease were studied, 22 of them with symptoms of cognitive deficit and 10 control participants who had not presented this condition. The patients underwent cognitive interviews to determine their degree of neurological involvement, and cerebrospinal fluid was analyzed in 17 of them who consented to lumbar puncture.

The results revealed that 10 of 13 participants with cognitive symptoms had cerebrospinal fluid abnormalities. All four samples from participants without cognitive symptoms, however, were normal.

 

 

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