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Physical fitness trends and factors influencing them in community-dwelling older adults: a longitudinal cohort study involving multiple tests
CONCLUSION: Distinct domain-specific PF trends were noted among Taiwanese community-dwelling older adults, with maintenance of strength and agility but progressive declines in endurance and flexibility. Sustained engagement in community-based, multicomponent exercise programs may mitigate age-related decline and support healthy aging in later life.
Computer prediction and genetic analysis identifies retinoic acid modulation as a driver of conserved longevity pathways in genetically diverse Caenorhabditis nematodes
Discovery of new compounds that ameliorate the negative health impacts of aging promises to be of tremendous benefit across a number of age-based comorbidities. One method to prioritize a testable subset of the nearly infinite universe of potential compounds is to use computational prediction of their likely anti-aging capacity. Here, we present a survey of longevity effects for 16 compounds suggested by a previously published computational prediction set, capitalizing upon the comprehensive,...
Author Correction: Rolling back human pluripotent stem cells to an eight-cell embryo-like stage
Seeding opportunities for Black atmospheric scientists
Two ancient humans, including famed ‘Iceman,’ had cancer-causing virus
Findings from ancient DNA may shed light on HPV’s history in our species
Life in Europa’s ocean could feed on rocks’ radioactive decay
After series of bleak findings, theory sparks hope for alternative energy source within Jupiter’s intriguing moon
NIH official resigns after flap over risks of seasonal flu virus study
Agency may be expanding list of pathogens subject to dangerous “gain-of-function” regulations
Roots of milk drinking revealed by South Asian genomes
Natural selection was at work—but only in populations with no alternative to dairy
Sun’s gravitational lens could reveal alien planets’ surfaces
Bold concept calls for sending telescopes 10 times farther than Pluto
Deer urine glows like holiday lights in the breeding season
“Photoluminescence” may be a way for the animals to communicate with each other
Antibody drug conjugates in Alzheimer's disease: emerging strategies and future directions
Antibody-drug conjugates (ADCs) are emerging as a targeted therapeutic strategy for Alzheimer's disease (AD), offering precise delivery of disease modifying agents with reduced systemic toxicity. By linking monoclonal antibodies to small-molecule payloads, ADCs hold promise in overcoming key challenges in AD treatment, including poor blood-brain barrier (BBB) penetration and off-target effects. This review provides a critical synthesis of ADC strategies in neurodegeneration, with emphasis on...
Complexity of olfactory-evoked EEG as an evidence-based marker of Alzheimer's disease
Olfactory impairment is an early symptom of Alzheimer's disease (AD). However, currently used olfactory task-based functional magnetic resonance imaging (fMRI), functional near-infrared spectroscopy (fNIRS), and electroencephalogram features are not powerful enough to detect the impairment. To address this issue, we propose an explainable Artificial Intelligence (XAI) framework that comprises discriminant analysis/naive Bayes/thresholding classifiers driven by the sample entropy (SE) of...
The rise and deceleration of neuronal excitability in aging and Alzheimer's disease: Mechanisms, implications, and therapeutic targets
Neuronal hyperexcitability-defined as increased likelihood of action potential firing in response to stimuli-has emerged as a key pathophysiological feature in both normal aging and Alzheimer's disease (AD). This review synthesizes current evidence across species and models, evaluating the prevalence, mechanisms, and consequences of heightened excitability at the cellular and network levels. We examine electrophysiological and imaging-based indicators of hyperexcitability, including enhanced...
Multidimensional plasticity of natural killer cells in tumours
Natural killer (NK) cells exhibit remarkable adaptability within the tumour microenvironment (TME), where dynamic shifts in phenotype, function and metabolism govern their dual roles in antitumour immunity and tumour immune evasion. In the TME, NK cells undergo receptor remodelling, which is characterised by upregulated inhibitory signals and suppressed activating receptors, leading to the formation of dysfunctional subsets, such as exhausted TIM-3⁺ NK cells or tissue-resident CD49a⁺...
Targeting intrinsically disordered nuclear protein 1 (NUPR1) with single-domain antibodies alleviates triple-negative breast cancer (TNBC) progression in vivo
Triple-negative breast cancer (TNBC) is a highly aggressive subtype that currently lacks effective targeted therapies. Transcriptional co-regulator nuclear protein 1 (NUPR1) has been identified as a key stress-adaptive disordered protein that promotes tumor progression and therapy-induced resistance. In this study, we developed a robust high-throughput platform integrating in situ proximity ligation assay followed by DNA sequencing (isPLA-seq), NanoBiT assays, and C-degron degradation validation...
The rise and deceleration of neuronal excitability in aging and Alzheimer's disease: Mechanisms, implications, and therapeutic targets
Neuronal hyperexcitability-defined as increased likelihood of action potential firing in response to stimuli-has emerged as a key pathophysiological feature in both normal aging and Alzheimer's disease (AD). This review synthesizes current evidence across species and models, evaluating the prevalence, mechanisms, and consequences of heightened excitability at the cellular and network levels. We examine electrophysiological and imaging-based indicators of hyperexcitability, including enhanced...
Aducanumab binding to Aβ<sub>1-42</sub> fibrils alters dynamics of the N-terminal tail while preserving the fibril core
Aducanumab, a human IgG1 antibody with plaque-clearing effects and modest clinical benefit, binds selectively to aggregated Aβ via the N-terminal region. Yet, the molecular details of how the antibody engages Aβ(1-42) fibrils remain unresolved. Using magic-angle spinning NMR, we show that binding of aducanumab preserves the overall architecture of the Aβ(1-42) fibril core while inducing significant structural and dynamic perturbations in the N-terminal region. Antibody binding markedly reduces...
Targeted gene transfer into developmentally defined cell populations of the primate brain
The primate brain possesses unique physiological and developmental features, yet its systematic investigation has been hampered by a paucity of transgenic germline models and tools. Here, we present a minimally invasive method to introduce transgenes widely across the primate cerebral cortex using ultrasound-guided fetal intracerebroventricular viral injections (FIVIs). FIVI enables efficient and long-lasting transgene expression following intrauterine delivery of recombinant adeno-associated...
Antibiotic-induced microbiota depletion impairs the proregenerative response to a biological scaffold
Therapeutic biological scaffolds promote tissue repair primarily through the induction of type 2 immunity. However, systemic immunological factors, including aging, sex, and previous infections, can modulate this response. The gut microbiota is a well-established modulator of immune function across organ systems, yet its influence on type 2-mediated repair remains underexplored. Here, we establish a bidirectional relationship between the gut microbiota and biological scaffold-mediated tissue...
Editorial: Sex-dependent modulation of neuroinflammation in the aging brain
No abstract