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Virus-mediated gene transfer of soluble amyloid precursor protein-alpha via systemic injection in a mouse model of Alzheimer's disease

4 days 2 hours ago
Alzheimer's disease (AD) is the most common neurodegenerative disorder, yet effective preventive or therapeutic strategies remain limited. A hallmark of AD pathology is the accumulation of insoluble amyloid-β (Aβ) aggregates, which are targeted by recent antibody-based therapies. Conversely, soluble amyloid precursor protein-alpha (sAPPα), a non-amyloidogenic cleavage product of APP, possesses neuroprotective, neurotrophic, and synaptogenic properties, and the ability to enhance memory. This...
Yuanyuan He

Integrative epigenomic landscape of Alzheimer's Disease brains reveals oligodendrocyte molecular perturbations associated with tau

4 days 2 hours ago
Alzheimer's disease (AD) brains have variable neuropathologic and biochemical changes. Capturing epigenetic factors associated with this variability can reveal novel biological insights into AD pathophysiology. Here, we conduct an epigenome-wide association study of DNA methylation in 472 AD brains with neuropathologic and biochemical brain protein levels core to AD pathogenesis. Using a novel regional methylation (rCpGm) approach, we identify 5478 significant associations, 99.7% of which...
Stephanie R Oatman

Piezo1-dependent activation of stromal cells ignites muscle inflammation in exercise and injury and is associated with inflammaging

4 days 2 hours ago
As the actuator of movement and a key regulator of organismal metabolism, skeletal muscle is a site at which inflammatory responses must be carefully calibrated to counteract stressors while preventing protracted functional impairments. Exercise, injury and aging are common forms of stress associated with inflammation; yet the specific inducers and sensors driving such inflammation remain poorly characterized. Multipronged assessment of acute and chronic endurance exercise models uncovered a...
P Kent Langston