Alzheimer’s Update
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The Concerning Effects the Coronavirus Has on Brain Health xamination of those who have been affected by the coronavirus has produced some troubling results as researchers track the disease's long-term effects on the
brain, central nervous system and other parts of the body.
According to a study from the Northwestern Medicine health system, more than 80 percent of patients hospitalized due to COVID-19 have experienced neurological symptoms. Neurological effects associated with the virus include dizziness, headaches, temporary loss of taste and smell, extensive confusion, seizures and strokes. Some coronavirus “long haulers,” who continue to have symptoms months after the virus has cleared their bodies, have also been challenged by memory loss, attention difficulty and brain fog, affecting their ability to carry out daily activities. Scientists are concerned that this could lead to a swell of dementia and neurodegenerative cases in the future. In a recent paper published in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association, Gabriel A. de Erausquin, a professor of neurology at the University of Texas Health Science Center at San Antonio, and his coauthors highlighted research on how the virus may be directly invading the brain, resulting in chronic consequences that can be detrimental to people’s quality 46
NARFE MAGAZINE JUNE/JULY 2021
of life. The virus and abnormal brain imaging have been found in postmortem brain tissue samples from people in all parts of the world who had coronavirus.
NEUROLOGICAL EFFECTS ASSOCIATED WITH THE VIRUS INCLUDE DIZZINESS, HEADACHES, TEMPORARY LOSS OF TASTE AND SMELL, EXTENSIVE CONFUSION, SEIZURES AND STROKES. Previous studies of common viral infections have shown a connection between having such an infection and developing cognitive decline. In a January AARP article, Avindra Nath, clinical director of the National Institute of Neurological Disorders and Stroke (NINDS) at the National Institutes of Health (NIH), noted that “In general, we know that as you get older and get any kind of disease, … it can bring out an underlying dementia.” It is possible that contracting COVID-19 may increase the risk of developing dementia, de Erausquin says, but more
research is needed. He and colleagues from more than 30 countries will engage in a large-scale study involving approximately 40,000 patients. The researchers will look at how COVID-19 may increase the risk, severity and progression of neurodegenerative diseases such as Alzheimer’s, as well as examine the long-term effects that coronavirus can have on the brain. Heather Snyder, vice president of medical and scientific relations at the Alzheimer’s Association noted that asymptomatic patients and those who had severe illness will be included, and researchers will assess patients’ “behavior, their memory, their overall function” at six-month intervals. The Alzheimer’s Association is funding the study, along with technical guidance from the World Health Organization (WHO). Initial results are expected in 2022. Please keep those affected by the coronavirus in your thoughts. And thank you for your continued support in the fight to stamp out Alzheimer’s disease and dementia-related conditions. For more information about Alzheimer’s disease and dementia, please contact the Alzheimer’s Association at www.alz.org or call the 24-hour helpline at 800-272-3900. OLIVIA A. WILLIAMS IS CHAIR OF THE NARFE-ALZHEIMER’S NATIONAL COMMITTEE. EMAIL: OEASHF3@ GMAIL.COM. THIS COLUMN APPEARS QUARTERLY.
