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Coffee drinkers have less fat, more muscle, and surprising hormone differences

2 hours 7 minutes ago
Coffee drinkers may be getting more than an energy boost. A Finnish study found that people who drank more coffee tended to have less total and abdominal fat, more muscle, and healthier metabolic markers despite having similar BMIs. Higher coffee intake was also linked to lower levels of certain amino acids associated with insulin resistance and type 2 diabetes risk.

GLP-1 receptor agonists for Alzheimer's disease: Lessons from trials and translational challenges

1 day 4 hours ago
Alzheimer's disease (AD) is a multifactorial disorder that requires combined therapeutic strategies beyond amyloid clearance. Although GLP-1 receptor agonists show strong mechanistic rationale and supportive epidemiological signals for neuroprotection, large randomized trials in symptomatic AD have yielded negative clinical outcomes and do not support the therapeutic use in AD.
Ramona Stringhi

The Nutrition-Sleep-Circadian Axis in Age-Related Neurodegeneration: Cellular Mechanisms, Metabolic Dysfunction, and Neuroprotective Interventions

1 day 4 hours ago
Advanced age is accompanied by progressive metabolic, nutritional, mitochondrial, and neuroimmune dysregulation, which may increase susceptibility to neurodegenerative disorders such as Alzheimer's disease (AD) and Parkinson's disease (PD), highlighting the need to identify modifiable mechanisms that influence disease initiation and progression. Increasing evidence indicates that nutrition, sleep, and circadian rhythms function as an interconnected biological network regulating metabolic...
Shaik Basha

Autophagy as a mechanistic link between physical exercise and Alzheimer's disease

1 day 4 hours ago
Alzheimer's Disease (AD), the most prevalent cause of dementia worldwide, is a neurodegenerative disorder that currently has no cure. A growing body of evidence suggests that physical exercise is a potential non-pharmacological strategy in the treatment of AD. Recent findings highlight the involvement of autophagy in the modulatory actions of physical exercise for AD. Here, we present a narrative review of the current knowledge on how exercise impacts AD, specifically focusing on its regulation...
Zhouye Yu

Translating cellular aging clocks into disease risk prediction

1 day 4 hours ago
Ding et al. mapped over 7,000 plasma proteins to more than 40 cell types and developed machine learning aging clocks across 60,000 individuals, demonstrating that cell-type-specific biological aging is heterogeneous, measurable from blood alone, and powerfully predictive of neurodegenerative disease, cancer, and mortality up to 15 years before clinical onset.¹.
Shimaa Heikal

Multimodal brain cell atlas across the adult macaque lifespan

1 day 4 hours ago
High-throughput single-cell omics of non-human primate brain tissue provides a powerful platform to investigate the molecular basis of brain aging. Here, we present a comprehensive transcriptomic and chromatin accessibility atlas of 2,955,873 nuclei from eight brain regions of 23 female cynomolgus macaques spanning the adult lifespan, including exceptionally old individuals. Our analyses reveal dynamic, cell-subtype- and region-specific age-related changes in core brain functions, including...
Xiao Zhang

Biological aging and the hidden architecture of early-onset cancer risk

1 day 4 hours ago
In a Nature Medicine study, Tian et al. identify larger biological age gaps associated with early-onset lung, colorectal, and uterine cancers across birth cohorts. These findings position biological age as an integrative marker of physiological dysregulation. Future work combining aging clocks and mutational signatures could distinguish tumor-promoting states from tumor-initiating exposures.
Ammal Abbasi

The Nutrition-Sleep-Circadian Axis in Age-Related Neurodegeneration: Cellular Mechanisms, Metabolic Dysfunction, and Neuroprotective Interventions

1 day 4 hours ago
Advanced age is accompanied by progressive metabolic, nutritional, mitochondrial, and neuroimmune dysregulation, which may increase susceptibility to neurodegenerative disorders such as Alzheimer's disease (AD) and Parkinson's disease (PD), highlighting the need to identify modifiable mechanisms that influence disease initiation and progression. Increasing evidence indicates that nutrition, sleep, and circadian rhythms function as an interconnected biological network regulating metabolic...
Shaik Basha

Impaired brain-gut circuit for gut motility dysfunction in mouse models of Parkinson's disease

1 day 4 hours ago
Gut motility dysfunction is a common symptom of Parkinson's disease (PD), but its central mechanisms remain unclear. Here, we utilize multiple mouse models, which mimic both genetic and sporadic PD, to reproduce PD-related gut motility dysfunction. We find that α-synuclein pathology significantly impairs the excitability of cholinergic neurons in the dorsal motor nucleus of the vagus (DMV). Chemogenetic activation of these neurons effectively restores gut motility in PD models, revealing a...
Minhui Yu

Effects of Behaviour Change Interventions Combined With Exercise on Device-Measured Physical Activity in People With Hip and Knee Osteoarthritis: A Systematic Review and Meta-Analysis

1 day 4 hours ago
Behaviour change techniques (BCTs) are recommended as core components of physical activity (PA) interventions for people with lower limb osteoarthritis (OA), and identifying effective BCTs is an emerging research priority. This systematic review aimed to evaluate the effects of combined behaviour change and exercise interventions on objectively measured total PA (primary outcome) and other device-measured activity behaviours, including moderate-to-vigorous physical activity (MVPA), steps and...
Rebecca M Meiring

AK050834 Deficiency Prevents Vascular Aging via Opposite Regulation of Two Senescence-Sensitive Genes ATF3 and p21

1 day 4 hours ago
Vascular aging, not only a victim of vascular cell senescence but also a driving hub of systemic aging, is a complex process in which both anti-aging and pro-aging proteins are involved. Thus, the ideal anti-aging medication should have multiple protein targets; in this case, an lncRNA might be a good choice. AK050834 is a conserved lncRNA, but its roles in vascular biology and vascular aging are currently unknown. Here, we identified that AK050834 was highly expressed in vascular walls and in...
Haoran Wu