Skip to main content

Aggregator

Financial decision-making power and mental well-being in older adults: a nationwide longitudinal cohort study in China

2 weeks ago
CONCLUSIONS: Financial decision-making power is a significant and potentially modifiable factor associated with mental health among older adults, representing an underexplored pathway for promoting healthy aging, with effects partially mediated through ADL and leisure engagement. Mental health promotion strategies should seek to preserve older adults' household financial decision-making power while supporting functional independence and social engagement.
Yuanyuan Li

Probabilistic mapping and automated segmentation of human brainstem white matter bundles

2 weeks ago
Brainstem white matter (WM) bundles are essential conduits for neural signals that modulate homeostasis and consciousness. Their architecture forms the anatomic basis for brainstem connectomics, subcortical circuit models, and deep brain navigation tools. However, their small size and complex morphology, compared to cerebral WM, makes mapping and segmentation challenging in neuroimaging. As a result, fundamental questions about brainstem modulation of human homeostasis and consciousness remain...
Mark D Olchanyi

Expansive spatial pattern of Aβ deposition in patients with cerebral amyloid angiopathy: A three-dimensional surface-to-depth analysis

2 weeks ago
Cerebral amyloid angiopathy (CAA) is a neurodegenerative condition characterized by amyloid-β (Aβ) deposition in small vessel walls, often coexisting with Alzheimer's disease due to impaired Aβ clearance. However, the spatial distribution of Aβ within the human brain remains unclear as the vascular network's complexity and scale hinder visualization by conventional thin-slice analysis. To address this, we performed three-dimensional (3D) volumetric imaging of the cerebrovascular network and Aβ...
Hideki Hayashi

Critical roles of m6A demethylase FTO in ovarian aging

2 weeks ago
Ovarian aging, recognized as one of the initial signs of systemic aging, is marked by a progressive reduction in both the number and quality of oocytes, which has a profound effect on female fertility. In spite of the advancements in assisted reproductive technologies, these methods fail to tackle the fundamental molecular mechanisms that drive ovarian senescence. Recent surveys have underscored the significant role of epitranscriptomic regulation, especially the N6-methyladenosine (m6A)...
Saba Hadi

Teleultrasound in obstetrics: A systematic review and meta-analysis

2 weeks ago
CONCLUSION: This review demonstrated the potential applicability and value of obstetric teleultrasound. This novel care model is everchanging and new devices/systems capable of telesonography are of clinical and scientific relevance. Presently, additional high-quality evidence is required, particularly using teleultrasound in a clinical context, whilst ensuring sufficient methodological detail and consistent outcome reporting.
Jack Le Vance

Antigen-specific T<sub>H</sub>17 cells offset the age-related decline in durable T cell immunity

2 weeks ago
Older adults are susceptible to infections in part due to waning of immune memory. To uncover mechanisms of a long-lasting immune memory, we contrasted varicella zoster virus antigen-specific memory T cell responses in adults vaccinated at young (<20 years) or older age (>50 years) with a live-attenuated vaccine conferring durable protection only when given at young age or with an adjuvanted component vaccine eliciting long-lasting immunity in older adults. Unlike VZV-specific CD4^(+) T cells,...
Ines Sturmlechner

Ozone photochemistry in fresh biomass burning smoke over the United States

2 weeks ago
The first 5 hours of aging in biomass burning plumes can strongly affect ozone photochemistry. We examine how volatile organic compounds (VOCs), nitrogen oxides, and nitrous acid influence hydroxyl radical, ozone, and peroxyacetyl nitrate (PAN) based on three aircraft campaigns over the United States. Our analyses reveal variable, highly elevated hydroxyl radical concentrations in the first 2 hours, resulting in evident fire-to-fire variability in VOCs oxidation and in ozone and PAN production....
Lixu Jin