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A space telescope is falling to Earth. NASA is racing to rescue it
Vehicle will attempt a daring capture-and-boost mission to extend the life of the Swift observatory
Common plastic chemical linked to lifelong anxiety in new study
Exposure to a common plastic chemical before and shortly after birth may have lasting effects on behavior. Researchers found that male rats exposed early in life to DEHP—a plasticizer used in products ranging from medical devices to toys—showed significantly higher anxiety as adults, even long after exposure had ended. The animals were more hesitant to explore open spaces and spent more time frozen in place, classic signs of anxiety in rodents.
Big Ebola outbreak puts spotlight on little-known virus
The Bundibugyo virus only emerged twice before. Now, scientists see a chance to get to know it better
The earliest plague epidemics may have been caused by marmots
Ancient hunter-gatherers may have contracted the pathogen from marmots
A toxic STING-SAMHD1 axis drives replication stress in progeria and cancer cells
STING is an innate immune adaptor, classically activated by cytosolic DNA via cGAS-cGAMP to induce interferon signaling. Recent studies reveal that STING participates in non-canonical signaling pathways and localizes to the nucleus, where its functions remain poorly understood. In Hutchinson-Gilford Progeria Syndrome (HGPS), a premature aging disease caused by expression of the lamin-A mutant protein 'progerin', STING accumulates in the nucleus and drives chronic inflammation. Here, we show that...
Hyperspectral imaging and healthy aging: an observational study using hand skin as surface for monitoring healthy aging processes
With the global rise in life expectancy, promoting healthy aging has become a central focus in biomedical research. From global initiatives like The World Health Organization's Decade of Healthy Ageing (2021-2030) to local ones, they highlight the need for accessible, non-invasive, and cost-effective tools to monitor aging-related physiological changes. Since the hand skin is an easily accessible tissue, it can offer valuable insights into aging processes, influenced by age, gender, and...
Frailty and major late-life transitions in very old adults: contrasting biomarker patterns of GDF-15 and NT-proBNP in the Kawasaki Aging and Wellbeing Project
Frailty is a heterogeneous aging phenotype that represents accumulated biological vulnerability among very old adults. How frailty relates to key late-life transitions at advanced ages remains incompletely understood. We examined the longitudinal association between frailty status and a composite endpoint of incident long-term care insurance certification (level ≥ 2) or death, and assessed whether circulating biomarkers (growth differentiation factor-15 [GDF-15] and N-terminal pro-B-type...
The intervention effects of resistance exercise on sarcopenia in older adults: a systematic review and meta-analysis
CONCLUSIONS: Resistance exercise exerts significant beneficial effects on handgrip strength, ASMI, gait speed, and physical performance, as assessed by the five-times sit-to-stand test, in older adults with sarcopenia.
Interacting and joint effects of frailty and depressive symptoms in relation to risk of cardio-oncology comorbidity in older adults from three prospective cohorts
CONCLUSIONS: Concurrent frailty and depressive symptoms constitute the highest-risk phenotype for cardio-oncology comorbidity in community-dwelling older adults. These findings suggest that combined assessment of frailty and depressive symptoms may improve baseline risk stratification of cardio-oncology comorbidity.
Fucoxanthin Promotes Longevity and Neuroprotection in Caenorhabditis elegans via DAF-16 and Autophagy Pathways
Identification of natural compounds that delay aging and prevent age-related neurodegeneration is a key goal in gerontology. Fucoxanthin, a marine-derived xanthophyll, exhibits potent antioxidant properties, yet its effects on organismal aging and specific molecular mechanisms remain underexplored. Here, we investigated the pro-longevity and neuroprotective effects of fucoxanthin using Caenorhabditis elegans. Fucoxanthin supplementation significantly extended the mean lifespan of wild-type...
A daily probiotic may help relieve depression and anxiety
A small clinical trial suggests that probiotics may offer a surprising mental health boost for older adults with depression. Seniors who took a daily probiotic alongside their regular antidepressant treatment experienced slightly greater improvements in depression and anxiety symptoms than those who received a placebo.