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Co-occurrence network characteristics and key comorbidity node identification based on health examination indicators among rural older adults aged 65 and above
CONCLUSIONS: Abnormal health indicators among rural older adults exhibit a metabolism-centered and systemically interconnected co-occurrence pattern. Fatty liver, diabetes, and hypertension are structurally central nodes in the network, highlighting their prominence rather than implying causality. Females show stronger indicator interconnections, and advanced age is associated with more complex co-occurrence patterns. These findings provide network-based, hypothesis-generating evidence to...
Social frailty as a predictor of mortality among older adults in four Colombian departments: evidence from the SABE survey
CONCLUSIONS: Social frailty was independently associated with all-cause mortality among older adults in this Colombian regional cohort. These findings suggest that incorporating social vulnerability measures into geriatric assessment may improve risk stratification and help identify individuals who could benefit from supportive interventions.
Digital technology use for social cohesion among older adults in rural Myanmar during the civil war: barriers and coping strategies
CONCLUSION: Digital technologies provide a limited but meaningful contribution to sustaining social cohesion among older adults in rural, conflict-affected Myanmar by supporting communication, emotional connection, and access to information. However, their contribution remains uneven, as structural inequalities, political constraints, and infrastructural limitations continue to restrict equitable access. Addressing these challenges requires context-sensitive, age-appropriate digital inclusion...
Cell stress and death liberate the autophagy-inhibitory tissue stress hormone DBI/ACBP into the circulation
Autophagy constitutes a major adaptive response that preserves cellular and organismal homeostasis during stress. However, stress responses also engage systemic communication pathways that may either maintain resilience or propagate pathology. We previously identified acyl-CoA-binding protein, also known as diazepam-binding inhibitor (DBI/ACBP), as a phylogenetically conserved extracellular factor secreted by stressed cells through an unconventional autophagy-dependent pathway. Once released,...
Daily briefing: How Venus flytraps snap shut
Two modes of aging to explain why lifespans differ across species
Author Correction: Exercise alleviates cognitive dysfunction in Alzheimer’s disease mice via skeletal muscle-derived extracellular vesicles that enhance plaque clearance by microglia
‘Student Geng’ ignites research-integrity scandal in China after calling out senior academics
An innovative technology boosts image quality for protein structures
Humans outperform AI at this highly rigorous mathematics test
Briefing Chat: The epic journey of Stonehenge’s central stone
Why we seek to fly: Books in brief
I advise the Vatican and the UN on AI — don’t dismiss the Pope’s message as theology
New documentary follows researchers’ increasingly fraught career path
The Endless Frontier traces the lives of three scientists as they train students and deal with funding pressures
Scientists found the strength training sweet spot for a longer life
Just 90–120 minutes of strength training a week may deliver some of the biggest long-term health rewards, according to a study tracking more than 147,000 people for 30 years. That amount was linked to lower risks of death overall, particularly from cardiovascular and neurological diseases. Combining strength workouts with aerobic exercise produced even stronger benefits.
Metal-driven chemical reaction in deep sea may explain origin of life
Group offers new scenario for how cells came to rely on phosphate molecules to build DNA and store energy
The deadly tapeworm spreading across America has reached the Pacific Northwest
A potentially dangerous tapeworm linked to severe, cancer-like disease has now been found in the Pacific Northwest, marking its first detection in wild animals along the U.S. West Coast. Researchers discovered the parasite, Echinococcus multilocularis, in 37% of coyotes tested around Puget Sound—a surprisingly high rate for a region where it had never been reported until recently.
If scientists discover aliens, they have a plan for ‘disclosure day’
New guidelines aim to help scientists verify, communicate, and manage evidence of extraterrestrial intelligence
Microglia at a key inflection point in Alzheimer's disease
No abstract
Caloric restriction rejuvenates aged adult stem cells: From mechanisms to interventions
Adult stem cells are essential for maintaining tissue homeostasis and facilitating tissue repair. The ability of aged stem cells to generate functional progeny declines, which is closely associated with the onset and progression of age-related diseases. The aging of adult stem cells in various tissues is regulated jointly by local microenvironments (stem cell niches) and systemic factors. Caloric restriction (CR), a widely studied anti-aging strategy, has been demonstrated to rejuvenate aged...