Because of the FDA’s accelerated approval of aducanumab and ongoing news surrounding COVID-19, many important Alzheimer’s and dementia science stories were under-reported. However, 2021 saw many exciting research developments globally, nationally and even locally. In fact, Dr. Kristen Zuloaga, Associate Professor and Director of Graduate Studies in the Department of Neuroscience and Experimental Therapeutics (DNET) at Albany Medical college, was a recipient of a 2021 Research Grant Award from the Alzheimer’s Association. The grant provides Dr. Zuloaga $150,000 over three years to investigate the effects of menopause in Alzheimer’s disease, as well as uncover whether this damage is preventable with brain-specific estrogen replacement. We’re watching her research closely as it could provide insight to aid future therapies to decrease the burden of Alzheimer’s disease.

Here are five other 2021 Alzheimer’s research advances you might have missed:

1. A link between COVID-19 and the brain. In July, the Alzheimer’s Association’s international, multidisciplinary SARS-CoV-2 consortium presented its first data on the short- and long-term consequences of the COVID-19 infection on the brain. The data, reported at AAIC 2021, suggested a link between COVID-19 and persistent cognitive impairment, including the acceleration of Alzheimer’s symptoms.

2. The Alzheimer’s drug pipeline heated up. In the second half of 2021, there was renewed excitement in the class of experimental Alzheimer’s drugs that target beta-amyloid. These include drugs from Eli Lilly (donanemab), Eisai (lecanemab) and Roche (gantenerumab), all of which received Breakthrough Designation by the FDA in 2021. We also heard topline results from a phase 2 trial of a drug that targets tau tangles, a toxic protein in the Alzheimer’s brain. Plus, strategies targeting neuroinflammation, protecting brain cells, and reducing vascular contributions to dementia — all funded by the Part the Cloud program – advanced into clinical trials.

3. Diversity was a major focus in all things Alzheimer’s. Researchers are working to better understand how Alzheimer’s risk and progression differ in different populations.

n Alzheimer’s Association-funded researcher Kacie Deters published findings that suggest Black individuals have lower levels of an Alzheimer’s marker in the brain compared to other groups with similar cognitive abilities.

n The Alzheimer’s Association’s New IDEAS study — which is evaluating brain amyloid PET scans in individuals of underrepresented populations with memory loss — aims to recruit a minimum of 2,000 Black and 2,000 Hispanic individuals.

4. Blood tests for Alzheimer’s took a major step forward. We’ve seen advances in the development of blood tests that provide a simple, accurate, non-invasive way to detect Alzheimer’s years before symptoms appear. Now, they’re being used to screen people for participation in a new clinical trial to prevent memory loss.

5. Research uncovered another benefit of exercise on the brain. An August 2021 study found a hormone produced by muscles during exercise can bolster the health of neurons and improve thinking and memory. While the results are very preliminary, this offers more evidence that exercise is good for the long-term health of the brain.

This is a very exciting time in Alzheimer’s disease and dementia research. And at any given moment the Alzheimer’s Association is leading the fight. We are confident that better treatments, earlier detection, and prevention strategies will be available in the foreseeable future.

Marisa Korytko is the Public Relations Director for the Alzheimer’s Association Northeastern New York chapter. She can be reached at mekorytko@alz.org.

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