Scientists discover brain switches that clear Alzheimer’s plaques

Researchers have identified two brain receptors that help the brain clear away amyloid beta, a hallmark of Alzheimer’s disease. By stimulating these receptors in mice, scientists increased levels of a natural amyloid-breaking enzyme, reduced buildup in the brain, and improved memory-related behavior. Because these receptors are common drug targets, the findings could open the door to affordable pill-based treatments with fewer side effects.

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Researchers identify promising Alzheimer’s disease drug target

Indiana University School of Medicine scientists have identified a promising drug target for Alzheimer’s disease. The team found that removing an enzyme from neurons in the brain substantially reduces amyloid plaques—a hallmark characteristic of the disease—and may provide further resilience against disease progression.

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First intervention shown to Lower Alzheimer’s and Dementia Incidence

In a world’s first, an NIH-funded randomized controlled trial of more than 2,800 older adults (the “ACTIVE Study”) has reported a modest amount of cognitive training significantly reduced Alzheimer Disease and related dementias diagnoses, as reported in Medicare data over a 20-year follow-up period. The results are published in Alzheimer’s & Dementia: Translational Research & Clinical Interventions,

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Medicare caregiver support program yields better outcomes than Alzheimer’s medication alone, study finds

Patients with dementia who participated in a Medicare-funded collaborative care program that provided support and medical advice for caregivers were able to remain in their home communities longer before entering nursing homes, according to a new study. This compares to those patients who were taking lecanemab, one of two approved drugs that have been shown to slow progression of Alzheimer’s in some patients, a February study published in Alzheimer’s & Dementia: Behavior & Socioeconomics of Aging found. 

Scientists Uncover a Hidden Early Stage of Alzheimer’s That They Can Stop

Scientists at Tokyo Metropolitan University have turned to polymer physics to better understand one of the defining features of Alzheimer’s disease: the formation of tau protein fibrils. Their research shows that these fibrils do not form directly. Instead, tau proteins first gather into large clusters, similar to how polymers begin to crystallize. When researchers disrupted these early clusters, fibrils failed to develop in solution.

This finding points to a major shift in how future treatments for neurodegenerative diseases might be designed.

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