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Identification of cognitive brain diseases using a dual-branch siamese network on structural magnetic resonance imaging data

2 months ago
Early diagnosis of Alzheimer's Disease is crucial for optimizing treatment efficacy, as delayed detection often limits therapeutic outcomes. Traditional diagnostic approaches, such as cognitive assessments, PET scans, and lumbar punctures, are often invasive, costly, and less accessible. To address these limitations, we propose a Dual-Branch Siamese Network aimed at enhancing the classification accuracy of Alzheimer's Disease, Mild Cognitive Impairment, and Cognitively Normal individuals using...
Wenjun Zhou

Successful aging among older adults with and without disability

2 months ago
OBJECTIVES: Disability is a common experience in older adulthood, yet biomedical perspectives do not accommodate successful aging within the context of disability. Our study integrates disability into the concept of successful aging and utilizes subjective well-being and self-rated health as indicators of successful aging. Further, we establish the link between disability and successful aging. Finally, we consider the potential for modifiable factors that hold promise in fostering successful...
Madina Khamzina

Age, caste, and social context shape ovarian morphology and transcriptomic profiles in red harvester ants

2 months ago
The reproductive division of labor defines eusocial insects like ants, where queens reproduce and workers remain sterile. Yet, some workers retain rudimentary ovaries, raising questions about latent reproductive potential. We examined morphological and transcriptomic differences in Pogonomyrmex barbatus queen and worker ovaries at different maturation stages and social contexts. Queens had large, yolk-rich oocytes, while worker ovaries showed regression. Callow workers (<5 days) had more...
María Fernanda Vergara-Martínez

Mitochondrial dysfunction drives age-related degeneration of the thoracic aorta

2 months ago
This study investigated the role of mitochondrial function in aortic aging. As the aorta ages, it becomes stiffer and less compliant, increasing the risk of aneurysmal disease, hypertension, and diastolic dysfunction. Given the role of mitochondrial dysfunction in non-age related aortopathies and as a hallmark of aging, we investigated its contribution to the aging aorta. Both male and female young (5-6 month) and aged (24-25 month) C57Bl/6 J mice received mitochondrial-targeted peptide...
Arjune S Dhanekula

Examining subjective views of the aging process in older adults: a systematic review following the COSMIN methodology

2 months ago
CONCLUSIONS: Notwithstanding psychometric and measurement issues, this review provides a comprehensive summary of existing instruments assessing subjective VoA, which have clinical and applied utility in promoting healthy aging, especially for older adults at risk of pathological aging. The development and validation of new VoA scales, particularly to assess views on age-related cognitive changes with aging, is warranted.
Enrico Sella