Skip to main content

Aggregator

What emergency department length of stay reveals about aging-related vulnerability and declining resilience

1 month 3 weeks ago
Emergency department (ED) length of stay (LOS) is associated with adverse outcomes and increases with age, but the extent to which this reflects differences beyond triage acuity is unclear. Emergency department (ED) length of stay (LOS) is associated with adverse outcomes and increases with age, but the extent to which this reflects differences beyond triage acuity is unclear.We conducted a retrospective cohort study of adult ED visits at a tertiary hospital in Hungary between 2016 and 2023 (n =...
Szabolcs Gaal-Marschal

Single-cell analysis of the human immune system reveals sex-specific dynamics of immunosenescence

1 month 3 weeks ago
Immunosenescence, the progressive aging of the immune system, is characterized by changes in immune cell composition and function that increase susceptibility to disease. However, how biological sex shapes immune aging at the cellular level remains poorly understood. Here, we analyze single-cell RNA sequencing data from the peripheral blood mononuclear cells of 982 female and male donors across adulthood. We find that aging drives sexually dimorphic compositional and transcriptional changes,...
Maria Sopena-Rios

Morphofunctional Heterogeneity and Plasticity of Glioblastoma Cells Induced to Senescence by Temozolomide

1 month 3 weeks ago
Several chemotherapeutics induce cancer cells to senescence, a persistent growth-arrest state associated with poor cancer prognosis. Relevant features in cancer cell biology, such as phenotypic plasticity and intercellular variability, are poorly understood for senescent cells (SnCs). This study examined the morphofunctional heterogeneity and dynamics of glioblastoma cells induced to senescence by Temozolomide (TMZ), focusing on pro-survival mechanisms, including autophagy and anti-apoptotic...
Solon Andrades da Rosa

Lived experiences of older adults and caregivers on social networks, social support from Chengalpattu, Tamil Nadu: a qualitative study using the Convoy Model of Social Relations

1 month 3 weeks ago
Changing family structures, nuclearization and urbanization are reshaping the socialization and support networks of older adults. Smaller families and migration reduce direct care and engagement opportunities, impacting health and functional ability in the growing aging population. The study explored social networks and perceived social support for older adults in rural and urban Chengalpattu, Tamil Nadu, through 33 in-depth interviews (22 older adults and 11 caregivers). Using the Convoy Model...
Sai Prashanthini Sivakumar

Integrin-Binding Matricellular Protein Fibulin-5 Maintains Epidermal Stem Cell Heterogeneity During Skin Aging

1 month 3 weeks ago
The extracellular matrix (ECM) is crucial in building the extracellular environment and translating extracellular information into biochemical signals that sustain tissue functions. Fibulin-5 (Fbln5) is a multifunctional ECM protein essential for forming elastic fibers and regulating cellular functions by binding to integrins. Although fibulin-5 expression decreases with age in human skin, its functional implications, particularly in epidermal stem cell regulation, remain largely unexplored....
Wenxin Fan

Salidroside ameliorates skin aging in male mice by promoting collagen regeneration via modulation of FOS and MMP9

1 month 3 weeks ago
Salidroside, a phenolic compound derived from Rhodiola rosea L., has been widely utilized in cosmetics and medicine for its anti-melanogenic properties. However, its role in collagen regeneration during skin aging remains unclear. In this study, we investigated the effects of salidroside on collagen synthesis and explored its underlying mechanisms in a murine model of skin aging. Administering salidroside (20, 40, and 80 mg/kg) orally for 28 days significantly increased dermal thickness,...
Zheng Wang

Polysaccharide-Rich Herbal Formula Attenuates Skin Aging and Oxidative Stress in VCD-Induced Menopause Models via Regulation of AQP-3, C1QBP, and K19

1 month 3 weeks ago
To investigate the protective effects of Nvshi Oral Liquid on skin aging and oxidative stress in 4-vinylcyclohexene diepoxide (VCD)-induced menopausal rats and Ultraviolet B (UVB)-irradiated HaCaT cells. VCD-induced menopausal rats and UVB-damaged HaCaT cells under low-estrogen conditions were established. Nvshi Oral Liquid was administered at low (2%), medium (6%), and high (10%) concentrations. Cell viability, Reactive Oxygen Species (ROS) levels, antioxidant enzymes (superoxide dismutase...
Yingqi Yu