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Influence of patient characteristics on efficacy and safety of anti-amyloid monoclonal antibodies in Alzheimer's disease: A systematic review and meta-analysis

1 day 9 hours ago
CONCLUSIONS: The efficacy and safety of anti-amyloid mAbs in AD may differ based on patients' demographic and genetic factors. These findings highlight the potential for personalised treatment strategies and inform national drug policies. Further research is needed to evaluate long-term outcomes and address under-studied patient populations.
Grace H Shim

Longitudinal effects of cerebrovascular reactivity and cerebral pulsatility in cognitively intact older adults with APOE4: links with cognition

1 day 9 hours ago
The apolipoprotein E4 (APOE4) allele is the strongest genetic risk factor for Alzheimer's disease (AD) and is linked to poorer cerebrovascular health. Cerebrovascular reactivity (CVR), an indicator of vascular reserve, and cerebral pulsatility (CP), a marker of vascular stiffness, are sensitive biomarkers of early vascular dysfunction associated with aging and AD. However, the relationship between APOE4 status and these cerebrovascular metrics remains unclear. This study investigated whether the...
Zacharie Potvin-Jutras

A Global Metabolomic and Lipidomic Landscape of Human Plasma Across the Lifespan

1 day 9 hours ago
Understanding metabolic changes across the human lifespan is essential for addressing age-related health challenges. However, comprehensive metabolomic and lipidomic analyses, particularly in human plasma, remain underexplored. Herein, we performed untargeted metabolomics and lipidomics profiling of plasma collected from 136 individuals aged 0-84 years. This analysis reveals distinct metabolic signatures across life stages, with newborns displaying unique sphingosine (SPH) profiles, while aging...
Xinru Liu

The frailty mortality link in people with chronic diseases pertaining to 13 body organ systems: findings from the UK Biobank study

1 day 9 hours ago
Frailty in older adults, particularly those with chronic diseases, has a robust association with risk of mortality, but whether this is the case in middle-aged adults is unclear. We examined the frailty-mortality association in middle-aged adults with chronic diseases and multimorbidity. Data on Fried's frailty phenotype (robust, prefrail, frail) and 47 chronic diseases, mapped to 13 body organ systems, was available on 230,960 participants of the UK Biobank study (mean age 57.8, range...
Justine Dastouet

A novel clinical biomarker-based Physiology Healthy Aging Index and risk of all-cause and cause-specific mortality: A 20-year prospective cohort study

1 day 9 hours ago
Population aging is accelerating worldwide, with 16% projected to be aged ≥ 65 years by 2050. A practical index reflecting overall aging status is needed for population-based research, as existing indices often require specialised or cognitive assessments. We developed a Physiological Healthy Aging Index (PHAI) using accessible biomarkers and evaluated its association with mortality in Korean adults. A total of 6398 participants aged ≥ 40 years from the Korean Genome and Epidemiology Study...
Jieun Lyu

Ageing in place readiness in Thailand: urban and rural comparison

1 day 9 hours ago
CONCLUSIONS: Thai older in rural areas can ageing in place better than their counterparts in urban areas. Therefore, the government should promote social participation policies for the older in urban areas, and technology for the older in rural areas. Overall, Thailand needs to ensure that there is a robust support system for ageing in place so that the older enjoy an optimal quality of life.
Faron Hattapradit

The association of ultra-processed foods and risk of sarcopenia among community-dwelling older adults

2 days 9 hours ago
CONCLUSIONS: This study identified significant associations between higher UPF consumption and both reduced muscle strength in community-dwelling older women and impaired physical performance in older men. However, no significant associations were found between UPF intake and muscle mass or overall sarcopenia diagnosis. Further large-scale prospective studies are warranted to confirm these findings and elucidate the role of UPF intake in the development of sarcopenia in aging populations.
Jamal Hallajzadeh

Neuromodulatory control of energy reserves in dopaminergic neurons

2 days 9 hours ago
The brain is a metabolically vulnerable organ as neurons have both high resting metabolic rates and the need for local rapid conversion of carbon sources to ATP during activity. Midbrain dopamine neurons are thought to be particularly vulnerable to metabolic perturbations, as a subset of these are the first to undergo degeneration in Parkinson's disease, a neurodegenerative disorder long suspected to be in part driven by deficits in mid-brain bioenergetics. In skeletal muscle, energy homeostasis...
Camila Pulido

A fin-loop-like structure in GPX4 underlies neuroprotection from ferroptosis

2 days 9 hours ago
Ferroptosis, driven by uncontrolled peroxidation of membrane phospholipids, is distinct from other cell death modalities because it lacks an initiating signal and is surveilled by endogenous antioxidant defenses. Glutathione peroxidase 4 (GPX4) is the guardian of ferroptosis, although its membrane-protective function remains poorly understood. Here, structural and functional analyses of a missense mutation in GPX4 (p.R152H), which causes early-onset neurodegeneration, revealed that this variant...
Svenja M Lorenz

Characterizing patterns in causes, risk factors, and life expectancy among the oldest old (aged 95+ years)

2 days 9 hours ago
CONCLUSION: The 95+-year-old population exhibits distinctive patterns of disease burden that have shifted substantially over the past three decades. Despite cross-national differences, cardiometabolic diseases and risk factors, along with multisystem comorbidities from the brain and kidneys, remain the primary drivers. Integrated strategies addressing biological, social, and environmental factors may enhance intrinsic capacity and promote healthy aging in the oldest old.
Haoxian Tang

No causal links between estradiol and female's brain and mental health using Mendelian randomization

2 days 9 hours ago
The role of estradiol in depression and Alzheimer's disease - brain disorders that disproportionately affect females - is debated. Results from observational studies are inconsistent and limited by confounding and reverse causation. To overcome these limitations, we perform two-sample Mendelian randomization. We run genome-wide association studies on sex-specific brain age gap, a proxy of brain health, and female-specific estradiol levels using data from the UK Biobank. We test for causal links...
Hannah Oppenheimer

Efficacy of auditory gamma stimulation for cognitive decline: a systematic review of individual and group differences across cognitively impaired and healthy populations

2 days 9 hours ago
Auditory gamma stimulation is a promising non-invasive neuromodulation technique for cognitive decline, with preclinical studies demonstrating therapeutic effects in Alzheimer's disease models. However, translating these findings into human trials has produced variable outcomes, suggesting a need to examine factors influencing efficacy. In a systematic review of 62 studies on healthy and cognitively impaired populations, we identified 16 characteristics that may affect the response to...
Eve Bolland

The transcription factor SKN-1 drives lysosomal enlargement during aging to maintain function

2 days 9 hours ago
Lysosomes are critical hubs for both cellular degradation and signal transduction, yet their function declines with age. Aging is also associated with significant changes in lysosomal morphology, but the physiological significance of these alterations remains poorly understood. Here, we find that a subset of aged lysosomes undergo enlargement resulting from lysosomal dysfunction in C. elegans. Importantly, this enlargement is not merely a passive consequence of functional decline but represents...
Xinyu Wang

Characterizing patterns in causes, risk factors, and life expectancy among the oldest old (aged 95+ years)

2 days 9 hours ago
CONCLUSION: The 95+-year-old population exhibits distinctive patterns of disease burden that have shifted substantially over the past three decades. Despite cross-national differences, cardiometabolic diseases and risk factors, along with multisystem comorbidities from the brain and kidneys, remain the primary drivers. Integrated strategies addressing biological, social, and environmental factors may enhance intrinsic capacity and promote healthy aging in the oldest old.
Haoxian Tang

cGAS-STING-driven inflammaging cascade in aging-related retinal diseases: from pathological mechanism to therapeutic potentials

2 days 9 hours ago
Aging-related retinal diseases lead to irreversible structural damages and vision loss. These conditions are characterized by cellular senescence, oxidative stress, neural degeneration, and neovascularization. Among these, chronic inflammation is a hallmark of aging, establishing a self-perpetuating vicious cycle that accelerates pathological process and physiological decline. cGAS-STING signaling pathway has been identified as a critical mediator of inflammation across multiple retinal disease...
Xiaosu Wang

Exercise-Induced Inflammatory and Metabolic adaptations in Ageing: A Meta-Analytic Compendium

2 days 9 hours ago
CONCLUSION: Aerobic training is the most effective intervention, followed by resistance training, and at least 3 sessions per week (or twice a week for more than 24 weeks) are needed for metabolic and anti-inflammatory adaptations. This compendium provides a reference point for personalised exercise plans for treatment and prevention of chronic diseases-especially for older adults with metabolic conditions.
Mr Rocco Sheldon

Early prediction of lithium-ion battery degradation with a generative pre-trained transformer

2 days 9 hours ago
The early detection of degradation in lithium-ion batteries (LIBs) is crucial for effective predictive maintenance and recycling. However, accurately predicting the future degradation of LIBs in early stage is challenging due to the barely noticeable performance changes at initial charging cycles and the long-term nonlinear degradation pattern. In this work, we propose a two-stage early-stage degradation prediction method, BatteryGPT, which employs a Generative Pre-trained Transformer (GPT) to...
Jincheng Hu