Aggregator
Author Correction: Predictive coding of reward in the hippocampus
Hypoxia-induced autophagic degradation of HIF-1α attenuates cellular aging and extends mammalian lifespan
Brain endothelial cell-derived extracellular vesicles (c-BEEVs) as a promising biomarker for brain vascular pathology and cognitive decline
Somatic variants in microglia-like cells linked to Alzheimer’s disease pathology
Tissue softness unlocks regeneration
Virologist accused of starting COVID-19 will fight U.S. ban on funding
HHS memo says Ralph Baric had a “pattern of deception” in describing virus studies long before pandemic
Most dementia patients have multiple brain diseases. How should they be treated?
Growing awareness of “copathology” inspires new diagnostic tests and clinical trials
Chinese postdocs in U.S. hit with a wave of prosecutions and deportations
The U.S. government has recently convicted multiple postdocs for improper shipments of biological materials. Some see a replay of the 2018 China Initiative
Two skeptics of antidepressant drugs named to NIH mental health council
Pending appointments of Laura Delano and David Cohen raise concerns that key advisory groups are becoming politicized
This simple strength test could predict how long you live
Staying strong may be one of the biggest secrets to living longer — especially for older women. A major study of more than 5,000 women found that simple signs of muscle strength, like a firm hand grip or the ability to quickly stand up from a chair, were strongly linked to lower risk of death over the next eight years.
Scientists say this common sweetener may be quietly rewiring your metabolism
Researchers say fructose is not just “empty calories” — it may actively push the body toward fat storage and metabolic disease. A new review found that fructose affects the body differently from glucose, disrupting normal energy regulation and promoting processes linked to obesity, insulin resistance, and cardiovascular problems.
Advances in modeling memory decline: A critical overview of current animal and human paradigms
Memory decline, particularly in neurodegenerative disorders such as Alzheimer's disease, represents a critical global public health challenge, with projections exceeding 150 million cases by 2050. Current therapeutic options remain limited: while drugs like donepezil and memantine offer symptomatic relief, and newer agents like lecanemab show modest effects on slowing progression, no disease-modifying cures exist. This underscores the urgent need to refine preclinical models bridging discovery...
alpha/Sulfonyl-gamma-AApeptide foldamers mitigate Alzheimer's disease pathology by stabilizing transient helical domains in Abeta
Alzheimer's disease (AD) is characterized by the accumulation of amyloid-β (Aβ), with soluble oligomers widely recognized as key drivers of neurotoxicity through disruption of synaptic function, mitochondrial integrity, and cellular homeostasis. Targeting Aβ aggregation therefore represents a compelling therapeutic strategy. Here we report a synthetic peptidomimetic foldamer, M4, as a potent modulator of Aβ42 aggregation. Biophysical analyses demonstrate that M4 binds Aβ with high affinity,...
Advances in modeling memory decline: A critical overview of current animal and human paradigms
Memory decline, particularly in neurodegenerative disorders such as Alzheimer's disease, represents a critical global public health challenge, with projections exceeding 150 million cases by 2050. Current therapeutic options remain limited: while drugs like donepezil and memantine offer symptomatic relief, and newer agents like lecanemab show modest effects on slowing progression, no disease-modifying cures exist. This underscores the urgent need to refine preclinical models bridging discovery...
Evolutionary genetics of ageing
Modern humans now routinely survive to advanced ages, in far greater proportions than ancestral populations, and thus experience the consequences of molecular pathways optimized for youth yet still active in old age. Natural selection weakens over the course of adulthood, creating a selection 'shadow' in which deleterious late-acting mutations accumulate and alleles with early-life benefits persist despite late-life costs. An evolutionary lens helps us to understand puzzling patterns - from...
The problem with one-size-fits-all medicine: Biological sex and the aging immune system
Aging has effects on the immune system that are similar in men and women, but also reshapes their immune systems in unique, sex-specific ways. These sex-specific patterns of immune aging influence disease susceptibility, vaccine effectiveness, cancer survival, and responses to pharmacological therapies, and have direct implications for preventive medicine and clinical care. However, these differences in susceptibilities and responses are rarely considered in research, clinical trials, or...
Reply to Zhang: Causal identification, social networks, and biological aging
No abstract
Do negative social ties accelerate aging in adults, or does aging erode social ties?
No abstract
Chaperone-mediated autophagy protects against retinal photoreceptor degeneration by modulating proteostasis of glucose metabolism enzymes
Defective proteostasis is a hallmark of aging cells and tissues. Among the different components of the proteostasis network, in this study, we focus on a selective form of autophagy known as chaperone-mediated autophagy (CMA), and we set out to understand its physiological role in the retina. Using mice deficient for CMA [knockout for lysosome-associated membrane protein type 2A (Lamp2A)], we have found that CMA blockade leads to impaired visual function, altered retinal proteostasis, and...
Integrated clinical and computational data-based repurposing of econazole as a novel autophagic activator in ULK1-related Parkinson disease
Parkinson disease (PD), the second most common neurodegenerative disorder, is pathologically linked to dysregulated autophagy, a conserved lysosomal degradation pathway. Current conventional PD therapies are often limited by significant side effects, underscoring the demand for alternative treatment strategies. Drug repurposing of FDA-approved compounds represents a promising approach to address this unmet clinical need. Here, by integrating clinical data analysis, we identified an association...