Aggregator
Targeting RNA polymerase I to boost natural killer cell anticancer activity in multiple myeloma
Multiple myeloma (MM) remains an incurable disease despite therapeutic advancements extending survival. Relapses driven by drug resistance and minimal residual disease underscore the need for novel treatment strategies. Natural Killer (NK) cells play a key role in MM immunity, yet their function is suppressed by inhibitory cytokines and metabolites from the tumor microenvironment. Developing anticancer drugs with immunomodulatory properties, such as enhancing tumor sensitivity to NK cell...
Dissecting endometrial cancer complexity in response to standard and targeted therapies
Endometrial cancer (EC) is one of the most common gynecologic malignancies amongst women worldwide. Its incidence and mortality rates have been increasing in the last decade. In the present work, we built a patient EC-derived organoid (PDOs) platform that faithfully recapitulated tumor phenotype, genomic alterations, and expression profiles of matched-primary cancer tissues. Interestingly, we found that the response of EC-derived PDOs to both standard therapy and a wide range of targeted drugs...
Neurophysiological signatures of default mode network dysfunction and cognitive decline in Alzheimer's disease
Neural hyperexcitability and network dysfunction are neurophysiological hallmarks of Alzheimer's disease (AD) in animal studies, but their presence and clinical relevance in humans remain poorly understood. We introduce a perturbation-based approach combining transcranial magnetic stimulation and electroencephalography (TMS-EEG), alongside resting-state EEG (rsEEG), to investigate neurophysiological basis of default mode network (DMN) dysfunction in early AD. While rsEEG revealed global neural...
Gut microbial-derived indole-3-propionate improves cognitive function in Alzheimer's disease
Intermittent fasting (IF) offers a potential strategy to counteract Alzheimer's disease (AD) progression. In our 16-week study on AD transgenic mice, IF positively affected cognitive function and reduced amyloid-β (Aβ) accumulation, verifying the IF's role in modulating neuroinflammation. Multiomics integration revealed strong links between IF-induced hippocampal gene expression, gut microbiota, and serum metabolites beneficial for cognition. Indole-3-propionic acid (IPA) emerged as a pivotal...
NAD+ restores proteostasis through splicing-dependent autophagy
Autophagy preserves neuronal integrity by clearing damaged proteins and organelles, but its efficiency declines with aging and neurodegeneration. Depletion of the oxidized form of nicotinamide adenine dinucleotide (NAD^(+)) is a hallmark of this decline, yet how metabolic restoration enhances autophagic control has remained obscure. Meanwhile, alternative RNA splicing errors accumulate in aging brains, compromising proteostasis. Here, we identify a metabolic - transcriptional mechanism linking...
Ars Longa: Michelangelo Buonarroti's Longevity (1475-1564) Analyzed by His Musculature
No abstract
Stakeholders' Perceived Benefits and Concerns Regarding Artificial Intelligence in the Care of Older Adults
CONCLUSIONS: Given the complexity and significant unmet needs among older adults, AI's potential benefits and harms are both heightened in this population. Appropriate guardrails are needed to leverage the benefits of AI while mitigating potential harms. Our findings have implications for technology developers to design innovations that align with the stakeholders' perceived roles for AI, for regulatory bodies to incorporate stakeholders' concerns when developing AI regulations, and for health...
NAD+ restores proteostasis through splicing-dependent autophagy
Autophagy preserves neuronal integrity by clearing damaged proteins and organelles, but its efficiency declines with aging and neurodegeneration. Depletion of the oxidized form of nicotinamide adenine dinucleotide (NAD^(+)) is a hallmark of this decline, yet how metabolic restoration enhances autophagic control has remained obscure. Meanwhile, alternative RNA splicing errors accumulate in aging brains, compromising proteostasis. Here, we identify a metabolic - transcriptional mechanism linking...
The relationship between disability, anxiety and depression in older adults with chronic disease comorbidities: the mediating role of frailty
CONCLUSION: Frailty serves as a critical mediator between disability, anxiety and depression in older adults with chronic disease comorbidity. Targeted interventions addressing disability and frailty may significantly mitigate anxiety and depression, thereby improving mental health and quality of life in this vulnerable population.
Exploring the experience and needs of postoperative rehabilitation management for elderly patients with osteoporotic vertebral compression fractures after percutaneous vertebroplasty: a qualitative study
CONCLUSION: This study suggests that clear guidance regarding postoperative rehabilitation exercises and multidisciplinary management protocols including individualized exercise plans, collaborative multidisciplinary rehabilitation strategies, and the development of smart devices may be important for healthcare providers in supporting patients' rehabilitation management. Based on participants' experiences, these approaches show potential for contributing to the alleviation of postoperative...
Sex-specific machine learning models for cardiovascular disease risk prediction in adults aged 80 years: insights from the Chinese longitudinal healthy longevity survey
CONCLUSIONS: This study developed interpretable, gender-specific machine learning models for CVD risk prediction in the oldest old population using routine biomarkers. The models demonstrated good discrimination and calibration, offering a practical tool for identifying high-risk individuals who may benefit from targeted preventive interventions. These findings suggest the potential utility of biomarker-based machine learning approaches in cardiovascular risk assessment for the rapidly growing...
Age-Dependent KLK8 Upregulation Contributes to Elevated Susceptibility to Ventilator-Induced Lung Injury in the Elderly Mice
There is a growing contradiction between the rising demand for mechanical ventilation among the elderly and their heightened sensitivity to ventilator-induced lung injury (VILI). This discrepancy compels us to explore therapeutic targets for VILI in elderly patients. Our research revealed that aging increases the sensitivity of pulmonary endothelial cells to low-magnitude mechanical stretch. By analyzing transcriptome sequencing data from lung tissues of humans and mice at different ages, as...
Antiviral drug abandoned by pharma shows promise against dengue
A daily pill can prevent the crippling disease, but its maker won’t bring it to market
Audio long read: Faulty mitochondria cause deadly diseases — fixing them is about to get a lot easier
Author Correction: Evidence for improved DNA repair in the long-lived bowhead whale
Author Correction: Diversity-oriented synthesis yields novel multistage antimalarial inhibitors
Laser cooling traps more antimatter atoms than ever before
The patterns and determinants of healthcare utilisation of older adults in rural Odisha, India - a cross-sectional study
CONCLUSION: The study shows that higher healthcare utilisation among older adults, but public healthcare utilisation remains low. The public healthcare utilisation, mostly by poorer population, highlights equity concerns.
Serotonin-mediated regulation of mitophagy in Alzheimer's disease: Mechanistic insights and therapeutic potential
This review delves into the intricate relationship between serotonin signaling, mitophagy and mitochondrial dysfunction in Alzheimer's disease (AD), with a focus on the mechanistic pathways that link these processes and their potential therapeutic implications. A neurodegenerative condition called Alzheimer's disease is marked by cognitive deterioration. It is increasingly recognized as being influenced by impaired mitochondrial function and mitophagy, the selective degradation of damaged...
Therapeutic potential of third molar-derived dental pulp stem cells in Alzheimer's disease: Current evidence and future directions
Alzheimer's disease (AD), the most common cause of dementia, is characterized by amyloid-β deposition, tau hyperphosphorylation, neuroinflammation, and progressive neuronal loss, with no curative therapy currently available. Dental pulp stem cells (DPSCs) derived from third molars represent an ethically accessible, minimally invasive, neural crest-derived mesenchymal stem cell source with self-renewal and multi-lineage differentiation potential. Preclinical evidence suggests that DPSCs exert...