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Rubin observatory begins a 10-year movie of the changing universe
World’s biggest digital camera will repeatedly scan the sky, spotting cosmic explosions while building up a deep map of billions of galaxies
The influence of aging on graded peripheral venous return and complex blood flow features through human veins
Aging is associated with reduced venous compliance and altered muscle pump function, though how these features impact venous return during volume-stressed conditions remains poorly characterized. We examined lower-limb venous flow dynamics and muscle pump efficiency between healthy younger (YA) and older adults (OA) under two volume-stressed conditions. Fourteen YA (7F, 26 ± 4 years) and fourteen OA (9F, 76 ± 6 years) underwent assessments at head-down tilt (HDT, -3°) and head-up tilt (HUT, +...
A Gut-Centric View of Ageing: A Pilot Analysis Mapping Age-Associated Immune and Molecular Alterations in Colonic Mucosa Using Spatial Proteomics
Investigating age-associated changes in intestine and understanding immune-related intestinal dysfunctions is essential for promoting healthy ageing. Mucosal surfaces represent a distinct immune compartment enriched with specialised lymphocytes that interact dynamically with the epithelial layer. In this study, we present novel spatially resolved insights into the cellular and molecular alterations in the ageing murine gut mucosa. Our findings reveal a complex network of interdependent...
Clonal Analyses Reveal the Impact of Hematopoietic Stem and Progenitor Cell Aging on T Cell Development
T cell output from the thymus falls throughout life and is associated with profound remodeling of the thymic stroma. To what extent the decline in T cell output is caused by aging of the hematopoietic stem and progenitor cells (HSPCs) has been difficult to define because of HSPC heterogeneity, the multi-stage process of HSPC migration, and the cross-talk between hematopoietic and stromal elements of the thymus. To address the contribution of HSPC aging on T cell development, we interrogated T...
High-saturated-fat diet drives female-biased neurodegeneration in <em>Drosophila</em> via oxidative stress and impaired autophagic flux
CONCLUSION: These findings identify oxidative stress and disrupted autophagy as key mediators of saturated-fat-induced neuronal decline and highlight a sex-specific vulnerability to dietary fat composition. This work establishes Drosophila as a powerful model for dissecting nutritional drivers of neural aging and suggests that metabolic stress pathways represent critical early targets in diet-associated neurodegeneration.
Engagement with the national electronic health records by people with Parkinson's disease
CONCLUSIONS: Personal EHR engagement among the vulnerable aging population is influenced by a complex interplay of patient, HCP, and technology-related factors, which must be addressed holistically to ensure inclusive usage and adherence to digital health tools.
Scientists may have finally found how Alzheimer's spreads through the brain
A common brain protein may be giving Alzheimer’s disease an unexpected way to spread, carrying toxic Tau proteins from damaged neurons into healthy ones. By blocking these harmful protein packages before they reach new cells, researchers believe it may one day be possible to slow the disease's relentless progression.
Early television set impresses Nature editors — but will it catch on?
Enhanced B cell priming induces broadly neutralizing HIV-1 apex antibodies
Retraction Note: NSD2 targeting reverses plasticity and drug resistance in prostate cancer
Vaccination elicits HIV broadly neutralizing antibodies in primates
Coffee is under threat: how scientists are fighting to save it from extinction
AI systems devise hypotheses and ways to test them
Can Rwanda sustain its rise in science and technology? Here’s what can help
AI tools can speed up thinking, but evidence still comes from the lab bench
Ebola preparedness must start with ecosystems and before humans show symptoms
Child online safety needs more than social-media bans
Scientists say creatine may help fight depression
Creatine is best known as a muscle-building supplement, but scientists are now investigating whether it could also help treat depression by boosting the brain's energy supply. A new review examined five randomized clinical trials involving 238 participants and found mixed results. Two studies, both involving women with major depressive disorder, reported that adding creatine to standard treatment improved symptoms, while three others found no meaningful benefit.
USC scientists just unlocked an endless supply of cancer-fighting immune cells
A new stem-cell-inspired technique allows scientists to grow vast numbers of immune-cell progenitors that can be engineered to hunt cancer and strengthen immune responses. In animal studies, the cells fought tumors, restored immune function, and showed promise as a durable, off-the-shelf therapy platform.
Scientists discover an unexpected way to make pancreatic cancer cells self-destruct
Researchers tested experimental PCAI compounds against pancreatic cancer cells and found they had powerful anticancer effects. One leading compound blocked more than 90% of cancer cell migration, suggesting it could help prevent the spread of tumors. Rather than suppressing cancer signaling, the treatment hyperactivated key pathways until the cells essentially self-destructed.