Previous studies, including large cohort analyses comparing vaccinated and unvaccinated adults, suggest that routine immunizations such as inactivated influenza vaccines (IIVs) may reduce Alzheimer dementia (AD) risk. Whether AD risk differs after high-dose IIV (H-IIV) vs standard-dose IIV (S-IIV) remains unexamined. We hypothesized that AD risk would be lower among adults ≥65 years after H-IIV compared with S-IIV.
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Women develop Alzheimer’s disease at higher rates than men. Stanford Medicine neurologists explain what science knows about why and the many things it doesn’t yet know.
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An NIH-funded research team, led by Drs. Orly Lazarov and Jalees Rehman at the University of Illinois, Chicago, turned to the brains of cognitive SuperAgers for clues. SuperAgers were defined as people at least 80 years old with memory test scores as good as or better than those of people in their 50s and 60s. The team looked for molecular signatures unique to those with exceptional recall and memory.
The findings give us a better understanding of cognitive function in the human brain as we age. “Determining why some brains age more healthily than others can help researchers make therapeutics that will boost memory in aging and prevent Alzheimer’s disease and related dementia,” Lazarov says.
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Scientists at the University of Kentucky have uncovered a biological signal that may help explain one of the most concerning side effects tied to new Alzheimer’s treatments. Their findings suggest that a simple blood test could one day identify which patients are more likely to develop complications before therapy even begins.
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Despite hopes raised by earlier observational studies and biomarker shifts, The Lancet trials found that oral semaglutide did not meaningfully slow clinical progression in early Alzheimer’s disease over two years.
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Older people with a genetic risk of Alzheimer’s disease did not experience the expected increase in cognitive decline and dementia risk if they consumed relatively large amounts of meat. This is shown in a new study from Karolinska Institutet published in JAMA Network Open. The results may contribute to the development of more individually tailored dietary advice.
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