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Colorectal cancer is increasingly showing up in younger adults, with cases now appearing in people as young as their thirties — often with no family history or warning signs. A major Swiss study analyzing nearly 100,000 cases over four decades found that diagnoses in people under 50 have been steadily climbing, even as rates fall among older adults thanks to screening programs. Researchers say younger patients are also more likely to be diagnosed late, after the cancer has already spread.

A daily multivitamin may help slow biological aging, according to researchers studying older adults in a large clinical trial. After two years, participants taking multivitamins showed slower aging in several DNA-based “epigenetic clocks,” with the effect equal to about four months less biological aging. People who started out biologically older than their actual age appeared to benefit the most. The findings hint that a simple supplement could play a role in healthier aging.

Storing quantum information in designer molecules could hold advantages over atoms, ions, and other kinds of qubits

Despite growing catalogs of genetic variation linked to human traits and diseases, the functional impact of most genetic variants remains poorly understood. Alternative splicing, particularly in the human brain, represents a key layer of post-transcriptional regulation that may mediate genetic effects on gene expression and protein diversity. In this study, we systematically map allele-specific alternative splicing (ASAS) events in postmortem brain tissues from the Mount Sinai Brain Bank cohort,...

The accumulation of abnormal tau protein selectively affects distinct brain regions and specific populations of neurons and glial cells in tau-related dementias, such as Alzheimer's disease, Pick's disease and progressive supranuclear palsy. Although the three disorders share the feature of tau protein pathology, the regulatory circuitry of non-coding genetic variants underlying risk-associated cell states remains to be elucidated. Using paired single-nucleus profiling of chromatin accessibility...

ULK1 (Atg1) initiates macroautophagy and mitophagy, which support neuronal growth and survival, yet how this pathway is disrupted in aging and Alzheimer's disease (AD) remains unclear. Here we report reduced ULK1 in serum and cerebrospinal fluid during aging in cognitively unimpaired participants from the COGNORM study (n = 75) and in patients with AD from the NorCog Memory Clinic Cohort (n = 316). In AD mice, ULK1 overexpression stimulates autophagic flux, reduces AD pathology and delays...

Depression and Alzheimer's Disease (AD) are both diagnosed in women twice as often as in men. Moreover, a history of untreated depression confers a 2-to-5-fold increase in the risk of developing dementia. Finally, biological factors such as sex differences in immune response increase rates of depressive pathology among women. Importantly, the prevalence of mid-to-late-life depression (MLD) worldwide and its misdiagnosis due to clinical overlap with AD hinder accurate assessment and timely...

Despite extensive research, molecular differences in human populations and the influence of ancestry, age, geography, and diet are poorly understood. We performed comprehensive multiomics profiling (including genomics, transcriptomics, proteomics, metabolomics, lipidomics, metallomics, glycomics, and microbiomics) on samples from 322 healthy individuals of European, East Asian, and South Asian ancestry across multiple continents. We identified ethnicity-associated molecular features linked to...

Lipid droplets (LDs) are lipid-storage organelles that have gained interest in neurodegenerative diseases, yet their physiological role in the brain is not fully understood. Classical LD detection using lipophilic dyes like BODIPY 493/503 (BD493) or antibodies against LD coat proteins typically reveals few LDs in healthy brain tissue. In contrast, our recently developed endogenous LD-reporter mouse showed numerous LDs in the developing and adult brain without staining. To understand this...

Cellular senescence is increasingly recognized as a fundamental driver of cardiovascular ageing; however, its molecular heterogeneity, cell-type specificity, and translational relevance remain incompletely understood. Accumulating evidence indicates that cardiovascular senescence is not a uniform or cell-autonomous process, but rather an emergent property of interacting endothelial, vascular smooth muscle, immune, and stromal cell networks shaped by metabolic stress, immune dysregulation, and...

Metal ions are indispensable for sustaining normal cellular functions and preserving tissue integrity, as they participate in enzymatic catalysis, signal transduction, and antioxidant defense. However, dysregulation of metal ion homeostasis, particularly during aging, disrupts cellular balance and significantly drives the development and progression of age-related ocular diseases, including age-related macular degeneration, glaucoma, diabetic retinopathy, and cataracts. Specifically, metal ions...

Echoing the regenerative powers of living organisms, self-healing materials can recover from damage, extending their lifespan and enhancing dependability, thus holding broad applications promise across diverse fields, including biological tissue engineering, soft robotics, flexible electronics, and automotive industries. Nonetheless, self-healing materials typically suffer from poor mechanical properties, a limitation stemming from the inherent trade-off between mechanical robustness and...

Aging is associated with detrimental changes in chromatin structure and gene expression, contributing to inflammation, metabolic decline and tissue dysfunction. SIRT6, a histone deacetylase, plays a key role in maintaining chromatin integrity and promoting longevity. Our multi-omics approach, combining ATAC-seq, methylome and RNA-seq shows that aging leads to increased chromatin accessibility in the male murine liver, accompanied by upregulation of inflammation and downregulation of metabolic...

A range of environmental, lifestyle and biological exposures across the lifespan - varying in timing, duration and intensity - interact with genetic factors to shape an individual's neurocognitive phenotype. By referring to the totality of exposures that an individual has experienced in their life so far, the exposome offers a valuable concept to better understand interindividual variability in not only brain-behaviour phenotype but also vulnerability and resilience to brain diseases. Numerous...

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Nicotinamide adenine dinucleotide (NAD^(+)) levels in blood and tissues are widely proposed to decline with age, yet evidence in human blood is inconsistent. Using a rigorously validated ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry system that accounts for real-world analytical variability, we quantify NAD^(+) across seven independent human cohorts. We find that whole-blood NAD^(+) levels remain remarkably stable with age and across lifestyle...

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ULK1 (Atg1) initiates macroautophagy and mitophagy, which support neuronal growth and survival, yet how this pathway is disrupted in aging and Alzheimer's disease (AD) remains unclear. Here we report reduced ULK1 in serum and cerebrospinal fluid during aging in cognitively unimpaired participants from the COGNORM study (n = 75) and in patients with AD from the NorCog Memory Clinic Cohort (n = 316). In AD mice, ULK1 overexpression stimulates autophagic flux, reduces AD pathology and delays...

Sarcopenia and the age-related decline in muscular strength and regenerative capacity contribute directly to loss of autonomy, greater risk for hospitalization and healthcare utilization. One contributing cellular phenotype associated with skeletal muscle aging is a loss in the function and number of resident muscle stem cells (MuSCs) or satellite cells. MuSC activation leads to dramatic changes in cellular architecture and metabolic reprogramming, including both mitochondrial biogenesis and...

CONCLUSIONS: Social support levels were comparable to international findings. Strategies are needed to enhance emotional support as scores were lowest in this domain. Frailty was associated with lower support, reinforcing a need to focus on support for this at-risk population. The positive association between community resource utilisation and social support despite low utilisation represents an area of untapped opportunity.