Aggregator
A 50-year journey in the development of treatment for benign prostatic hyperplasia
Recent research underscores the crucial role of hormone regulation in benign prostatic hyperplasia (BPH) and the therapeutic promise of growth hormone-releasing hormone (GH-RH) antagonists. BPH incidence in aging men doubled over three decades, driven by prostatic enlargement and lower urinary tract symptoms (LUTS). Aging-related changes in GH-RH and luteinizing hormone-releasing hormone (LH-RH) biology promote BPH through hormonal and inflammatory processes. Traditional therapies provide...
Immune-aging at diagnosis determines T-cell recovery in childhood leukemia survivors
We show that T cells in survivors of childhood leukemia exhibit distinct profiles dominated by aging-associated changes and consistent with premature immune aging. Immune profiles during survivorship in biospecimens (n = 251) from uniformly-treated children with B-acute lymphoblastic leukemia recapitulate heterogeneity at diagnosis in individual patients and correlate with genetic-risk subtypes. These data suggest that pre-therapy immune aging may determine variance in immune status during...
Sensory impairments and epigenetic aging: insights from self-rated hearing and vision in United States adults
Sensory impairments are common with aging, but studies examining the relationships of these impairments with DNA methylation-based biomarkers of aging, strong predictors of morbidity and mortality, remain sparse. We investigated whether subjective measures of sensory impairment are associated with epigenetic age biomarkers. We conducted a cross-sectional analysis in a representative sample of 2344 U.S. adults from the 1999-2000 and 2001-2002 cycles of the National Health and Nutrition...
How aging impacts cortical dynamics and gait during dual-task turning revealed by fNIRS
The aim of this study is to explore the differences in cortical activation and gait performance during turning walking under cognitive dual-task conditions between young and older adults during cognitive-turning dual task walking, as well as variations in brain functional connectivity in this context. Seventeen young adults and seventeen older adults were included in the study. All participants completed two tasks: a figure-eight turning walk (single-task, ST) and a figure-eight turning walking...
Disruption of BAG3-mediated BACE1 stabilization alleviates neuropathology and memory deficits in a mouse model of Alzheimer's disease
β-Site amyloid precursor protein (APP)-cleaving enzyme 1 (BACE1) is the rate-limiting enzyme for amyloid-β (Aβ) generation and is considered promising drug target for Alzheimer's disease (AD). The co-chaperone BAG3 (Bcl-2-associated athanogene 3) plays an important role in maintaining intracellular protein homeostasis by regulating heat shock protein 70 (HSP70). Here, we reported that BAG3 expression was significantly elevated in AD. It interacted with and stabilized BACE1 by delaying its...
A lncRNA-mediated metabolic rewiring of cell senescence
Despite not proliferating, senescent cells remain metabolically active to maintain the senescence program. However, the mechanisms behind this metabolic reprogramming are not well understood. We identify senescence-induced long noncoding RNA (sin-lncRNA), a previously uncharacterized long noncoding RNA (lncRNA), a key player in this response. While strongly activated in senescence by C/EBPβ, sin-lncRNA loss reinforces the senescence program by altering oxidative phosphorylation and rewiring...
Impacts of systemic milieu on cerebrovascular and brain aging: insights from heterochronic parabiosis, blood exchange, and plasma transfer experiments
Aging is a complex biological process that detrimentally affects the brain and cerebrovascular system, contributing to the pathogenesis of age-related diseases like vascular cognitive impairment and dementia (VCID) and Alzheimer's disease (AD). While cell-autonomous mechanisms that occur within cells, independent of external signals from neighboring cells or systemic factors, account for some aspects of aging, they cannot explain the entire aging process. Non-autonomous, paracrine and endocrine,...
Internet use, physical activity, and cognitive function in Chinese older adults: a cross-lagged panel analysis
CONCLUSION: This study reveals the complex relationship between cognitive function, internet use, and physical activity in older adults, and provides new perspectives for interventions aimed at improving cognitive health in older adults. Future research should further explore the dynamic changes between these variables to develop more effective intervention strategies and improve cognitive health and well-being in older adults.