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Bridging gap in the treatment of Alzheimer's disease via postbiotics: Current practices and future prospects
Aging is an extremely significant risk associated with neurodegeneration. The most prevalent neurodegenerative disorders (NDs), such as Alzheimer's disease (AD) are distinguished by the prevalence of proteinopathy, aberrant glial cell activation, oxidative stress, neuroinflammation, defective autophagy, cellular senescence, mitochondrial dysfunction, epigenetic changes, neurogenesis suppression, increased blood-brain barrier permeability, and intestinal dysbiosis that is excessive for the...
Model-constrained deep learning for online fault diagnosis in Li-ion batteries over stochastic conditions
For the intricate and infrequent safety issues of batteries, online safety fault diagnosis over stochastic working conditions is indispensable. In this work, we employ deep learning methods to develop an online fault diagnosis network for lithium-ion batteries operating under unpredictable conditions. The network integrates battery model constraints and employs a framework designed to manage the evolution of stochastic systems, thereby enabling fault real-time determination. We evaluate the...
Single-cell analysis identifies Ifi27l2a as a gene regulator of microglial inflammation in the context of aging and stroke in mice
Inflammation is a significant driver of ischemic stroke pathology in the brain. To identify potential regulators of inflammation, we performed single-cell RNA sequencing (scRNA-seq) of young and aged mouse brains following stroke and found that interferon alpha-inducible protein 27 like 2 A (Ifi27l2a) was significantly up-regulated, particularly in microglia of aged brain. Ifi27l2a is induced by interferons for viral host defense and has been linked with pro-inflammatory cellular mechanisms....
Adaptation of LASA sedentary behaviour questionnaire into Turkish and examination of its psychometric properties in elderly individuals
CONCLUSION-DISCUSSION: The LASA-SBQ was translated into Turkish and culturally adapted. The psychometric properties of the questionnaire were examined and validity and reliability analyses were performed. The Turkish version of the LASA-SBQ is a valid and reliable scale and is suitable for use in scientific research.
The vulnerability of hip fracture patients with cognitive impairment: an analysis of health conditions, hospital care, and outcomes
CONCLUSIONS: Hip fracture patients with cognitive impairment, particularly severe impairment, arrive at the ED in a considerably poorer state of health and are at a higher risk of adverse outcomes, including complications and mortality. Timely identification of this at-risk group upon arrival appears to be essential to providing adequate care. This study highlights the need for interventions and research aimed at improving prevention, emergency care and outcomes for this vulnerable group,...
Interpretable AI for inference of causal molecular relationships from omics data
The discovery of molecular relationships from high-dimensional data is a major open problem in bioinformatics. Machine learning and feature attribution models have shown great promise in this context but lack causal interpretation. Here, we show that a popular feature attribution model, under certain assumptions, estimates an average of a causal quantity reflecting the direct influence of one variable on another. We leverage this insight to propose a precise definition of a gene regulatory...
Dynamic changes in neuronal and glial GAL4 driver expression during Drosophila aging
Understanding how diverse cell types come together to form a functioning brain relies on the ability to specifically target these cells. This is often done using genetic tools such as the GAL4/UAS system in Drosophila melanogaster. Surprisingly, despite its extensive usage during studies of the aging brain, detailed spatiotemporal characterization of GAL4 driver lines in adult flies has been lacking. Here, we show that 3 commonly used neuronal drivers (elav[C155]-GAL4, nSyb[R57C10]-GAL4, and...
Test of Rapamycin in Aging Dogs (TRIAD): study design and rationale for a prospective, parallel-group, double-masked, randomized, placebo-controlled, multicenter trial of rapamycin in healthy middle-aged dogs from the Dog Aging Project
Companion dogs are a powerful model for aging research given their morphologic and genetic variability, risk for age-related disease, and habitation of the human environment. In addition, the shorter life expectancy of dogs compared to human beings provides a unique opportunity for an accelerated timeline to test interventions that might extend healthy lifespan. The Test of Rapamycin In Aging Dogs (TRIAD) randomized clinical trial is a parallel-group, double-masked, randomized,...
fmo-4 promotes longevity and stress resistance via ER to mitochondria calcium regulation in C. elegans
Flavin-containing monooxygenases (FMOs) are a conserved family of xenobiotic enzymes upregulated in multiple longevity interventions, including nematode and mouse models. Previous work supports that C. elegans fmo-2 promotes longevity, stress resistance, and healthspan by rewiring endogenous metabolism. However, there are five C. elegans FMOs and five mammalian FMOs, and it is not known whether promoting longevity and health benefits is a conserved role of this gene family. Here, we report that...
Improving cognitive impairment through chronic consumption of natural compounds/extracts: a systematic review and meta-analysis of randomized controlled trials
CONCLUSION: These findings support the potential cognitive benefits of extended (≥6 weeks) supplementation with natural compounds or extracts in individuals with MCI or AD. Further research is warranted to confirm these results and elucidate the underlying mechanisms.
Daily briefing: Scientists use AI to design life-like enzymes from scratch
‘Targeted and belittled’: scientists at US environmental agency speak out as layoffs begin
NASA embraced diversity. Trump’s DEI purge is hitting space scientists hard
Bats on film: scientific storytelling from a recovering academic
Why I retracted part of my PhD dissertation
‘Researching climate change feels like standing in the path of an approaching train’
Neuroevolution insights into biological neural computation
Science, Volume 387, Issue 6735, February 2025.
Conformational ensembles reveal the origins of serine protease catalysis
Science, Volume 387, Issue 6735, February 2025.
KLF2 maintains lineage fidelity and suppresses CD8 T cell exhaustion during acute LCMV infection
Science, Volume 387, Issue 6735, February 2025.
Enhancer-driven cell type comparison reveals similarities between the mammalian and bird pallium
Science, Volume 387, Issue 6735, February 2025.