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Why suppressing all wildfires has made today’s megafires worse
‘The Sun had fallen to Earth’ — a survivor’s recollection of the Hiroshima bombing
Protection from biological hazards at work arrives at last
Overcome threats to renewable energy through skilful statecraft
Protect Palestinian archaeological sites during war
Don’t train medical AI on patients’ data without their knowledge
Plan-B careers can be a force for good in science
Tackle fake citations generated by AI
Conserve marine migratory species to protect ecological links between land and sea
Breed giant prawns to withstand disease and climate change
Has NSF defied a court order by suspending 300 UCLA grants?
Federal judge to hear arguments relating to preliminary injunction to restore funding for other UC grants
NIH details options for limiting its payments for open-access publishing fees
Other publishing proposals would scrap reimbursements or pay peer reviewers, unprecedented steps for a major government funder
Why a top economist discounts Trump’s claim U.S. jobs data are ‘rigged’
A former head of the Bureau of Labor Statistics rebuts reason why president fired the agency’s leader
Immune-dodging cells could give diabetes treatment a shot in the arm
In first human test, genetically modified pancreas cells injected into patient’s arm evade immune attack, produce insulin
Mysterious killer of sea stars finally identified
Discovery of a bacterium could reveal more about massive die-off, perhaps aid recovery
The spatial landscape of glial pathology and T cell response in Parkinson's disease substantia nigra
Parkinson's Disease (PD) is an incurable neurodegenerative disease that causes movement disorders. Neurons in PD aggregate α-synuclein and are depleted from the substantia nigra (SN), which is a movement control hub. The presence of α-synuclein-reactive T cells in PD patient blood suggests a role for adaptive immunity in the pathogenesis of PD. However, the characteristics of this response within the brain are not well understood. Here, we employed single-nucleus RNAseq, spatial transcriptomics,...
Fasting is required for many of the benefits of calorie restriction in the 3xTg mouse model of Alzheimer's disease
Caloric restriction slows or prevents Alzheimer's disease in animal models. Calorie restriction is typically implemented in rodents through feeding once per day; as the animals quickly consume their food, they are subject to a prolonged self-imposed fasting period between meals. Here, we examine the distinct contributions of fasting and reduced calories to the beneficial effects of calorie restriction on Alzheimer's disease by placing male and female 3xTg and non-transgenic control mice on a...
Telomerase dynamics in stem cells: Unraveling the molecular nexus of cellular aging and regeneration
The expression levels of telomerase exhibit regulatory heterogeneity across different cell types and various biological stages of cell development. The expression of telomerase is dynamically regulated across cell types and developmental stages, with its activity predominantly determined by the abundance of its catalytic subunit, telomerase reverse transcriptase (TERT). Telomerase levels are typically high in the pluripotent embryonic stem cells, germline cells, and cancer cells, and silenced in...
Lysosomal membrane homeostasis and its importance in physiology and disease
Lysosomes are membranous organelles that are crucial for cell function and organ physiology. Serving as the terminal stations of the endocytic pathway, lysosomes have fundamental roles in the degradation of endogenous and exogenous macromolecules and particles as well as damaged or superfluous organelles. Moreover, the lysosomal membrane is a docking and activation platform for several signalling components, including mTOR complex 1 (mTORC1), which orchestrates metabolic signalling in the cell....
Uncovering the multivariate genetic architecture of frailty with genomic structural equation modeling
Frailty is a multifaceted clinical state associated with accelerated aging and adverse health outcomes. Informed etiological models of frailty hold promise for producing widespread health improvements across the aging population. Frailty is currently measured using aggregate scores, which obscure etiological pathways that are only relevant to subcomponents of frailty. Here we perform a multivariate genome-wide association study of the latent genetic architecture between 30 frailty deficits,...