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Accelerated biological aging is associated with faster multimorbidity progression: a UK biobank study

2 weeks 3 days ago
This study examined the associations of biological age accelerations (BAAs)-KDM-BA acceleration (via Klemera and Doubal's method) and PhenoAge acceleration (epigenetics-based), defined as residuals from regressing each biological age estimate on chronological age (CA)-with multimorbidity progression (measured by the Charlson Comorbidity Index, CCI), compared to CA. Utilizing UK Biobank data (n = 317,835; median follow-up: 13 years), Cox regression models adjusted for sex, ethnicity, lifestyle,...
Zhaoyu Wang

DCPS modulates TDP-43-linked neurodegeneration through P-body-mediated RNA decay

2 weeks 3 days ago
The proteinopathy of the RNA-binding protein TDP-43, characterized by nuclear clearance and cytoplasmic inclusion, is a hallmark of multiple neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD), and Alzheimer's disease (AD). Through CRISPR interference (CRISPRi) screening in human neurons, we identified the decapping scavenger enzyme (DCPS) as a novel genetic modifier of TDP-43 loss-of-function (LOF)-mediated neurotoxicity. Our findings reveal...
Yingzhi Ye

Effects of high-load, velocity-intentional variable resistance training combined with creatine supplementation on neuroplasticity, oxidative stress, inflammation, physical function, cognitive performance and quality of life in older adults: A randomized,…

2 weeks 4 days ago
CONCLUSIONS: High-load, velocity-intentional resistance training-on land or in water-effectively improves neurocognition, oxidative balance, inflammation, strength, function, and quality of life in older adults. Aquatic training is particularly effective for attenuating oxidative stress and inflammation. Creatine supplementation confers complementary, modality-specific benefits and supports their use in combination to high-speed resistance exercise to promote healthy aging.
Julio Fernandez-Garrido

Non-necroptotic MLKL function damages mitochondria and promotes hematopoietic stem cell aging

2 weeks 4 days ago
Hematopoietic stem cells (HSCs) survive many types of cellular stress but often lose their regenerative and lymphopoietic capacities as a result. Such functional decline also occurs with age, and dysfunctional HSCs with impaired mitochondria accumulate during aging. However, the molecular link between HSC stress response and age-related functional decline remains poorly understood. Here we show that multiple stress responses converge on the RIPK3-MLKL axis to induce age-related changes in HSCs....
Yuta Yamada