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A new way to fight gum disease without wiping out good bacteria
Scientists discovered that disrupting the chemical messages bacteria use to communicate can push dental plaque toward a healthier microbial balance. The approach could lead to new treatments for gum disease that control harmful bacteria without destroying beneficial species.
What happens in the brain when cannabis makes you anxious?
Cannabinoids may intensify anxiety by removing a natural brake on specific neurons in the brain’s fear center, particularly during stressful situations. In mice, shutting down those neurons sharply reduced cannabinoid-related anxious behavior.
Colorectal cancer is rising in young people and often found too late
Colorectal cancer in young people is often diagnosed at an advanced stage, with researchers finding most patients age 21 or younger already had Stage III or IV disease. Because symptoms like rectal bleeding, weight loss, abdominal pain, and bowel changes may be overlooked, researchers are calling for greater vigilance.
Goodbye joint replacements? Stanford scientists found a way to regrow cartilage and stop arthritis
Scientists have found a surprising way to regrow damaged knee cartilage by blocking a protein that becomes more abundant with age. In old mice, the treatment restored naturally lost cartilage and also helped prevent osteoarthritis after ACL-like knee injuries, while human cartilage taken from knee replacement patients began producing new, functional joint cartilage after exposure to the same inhibitor.
Scientists say this simple habit could strengthen your marriage
Couples who exercise together report better communication, healthier conflict resolution, and lower marital stress than those who work out alone. Even something as simple as taking a walk together may create valuable opportunities to talk, listen, and feel more connected.
One simple addition to postpartum care made a major difference
New mothers paired with patient navigators were much more likely to receive postpartum care, depression screening, preventive testing, and ongoing primary care. By helping with barriers such as transportation, childcare, scheduling, and confusing medical information, navigators may provide a powerful way to improve women’s long-term health.
A Silent RAGE: The Inflammatory Pathway to Dementia in Parkinson's Disease
Cognitive decline in Parkinson's disease (PD), progressing from mild cognitive impairment (PD-MCI) to severe dementia (PD-D), is a debilitating core feature driven by complex neuropathological interactions. While α-synuclein accumulation is the disease's hallmark, co-pathologies involving amyloid-β and tau, alongside chronic neuroinflammation, are critical accelerators of cognitive collapse. This review positions the receptor for advanced glycation end products (RAGE) as a key molecular...
Alzheimer's Disease as Progressive Failure of Dynamic Memory Architecture and Conscious Integration
Anti-amyloid antibodies substantially reduce amyloid plaque burden, yet the resulting cognitive benefit remains modest, exposing a limitation in the conventional storage-and-deletion model of memory. We propose that Alzheimer's disease (AD) is better understood as a progressive failure of the dynamic processes that continuously reconstruct memory and bind it to conscious experience, rather than static deletion of stored content following synaptic loss. Amyloid-beta oligomers and mislocalized tau...
Spatially resolved genome architecture in mouse embryonic development
Higher-order chromatin structure is linked to cell differentiation and aging, but its native distribution in tissues and role in organismal development remain unclear. Here, we introduce SpaceA, a spatial omics approach for in situ chromatin architecture profiling. Compared with high-throughput chromosome conformation Capture (Hi-C), SpaceA captures substantially more contacts over distances beyond 10 Mb, thereby enhancing detection of higher-order chromatin dynamics. Applied to nine mouse...
Vascular Aging-Driven Tumor-Like Transformation of Vascular Smooth Muscle Cells in Atherosclerotic Cardiovascular Disease: Mechanisms and Therapeutic Targets
Atherosclerotic cardiovascular disease (ASCVD) remains a leading cause of morbidity and mortality, with substantial residual risk persisting despite contemporary lipid-lowering, antithrombotic, and anti-inflammatory therapies. Increasing evidence indicates that vascular smooth muscle cells (VSMCs) actively shape plaque composition, progression, and stability through cellular programs that partially resemble those involved in tumor evolution. Within this framework, tumor-like transformation...
Circulating TNF-alpha, CCL2 and IL-6 are associated with blood-based epigenetic age and targeted CpG methylation signatures in aging mice
Aging is characterized by profound biological changes, among which epigenetic remodelling -encompassing alterations in DNA methylation patterns and microRNA modulation - and inflammaging (chronic, low-grade systemic inflammation) represent major contributors to functional decline and the pathogenesis of age-related diseases. While increasing evidence suggests a complex interplay between epigenetic modifications and inflammaging, a comprehensive elucidation of this axis remains elusive. In this...
Multimorbidity patterns and temporal trends of chronic diseases among community-dwelling older adults: Repeated cross-sectional surveys from 2022 to 2024
This study examined short-term trends in the prevalence of major chronic diseases, multimorbidity patterns, and of healthy aging levels among older adults participating in free health checkups in Longhua District, Shenzhen, from 2022 to 2024. Using random sampling, 10,000 participants were selected annually from the elderly health management information system, and both crude and age-standardized rates were calculated. Changes in prevalence were assessed using the Mantel-Haenszel test and...
Differences of oxidative damage in the brain of short- and long-lived Nothobranchius furzeri strains
CONCLUSION: Together, these findings indicate that lifespan divergence in N. furzeri is associated with distinct mitochondrial aging trajectories, supporting that enhanced antioxidants defenses and mitochondrial quality control contribute to the preservation of brain mitochondrial homeostasis and increased longevity.
Sex-stratified immune patterns across the canine lifespan and short-term responses to geroprotective interventions
Canine models are invaluable for translational geroscience, but natural sex-associated immune aging remains under investigated. Here, we characterize the age-associated hematologic and serum cytokine profiles in a controlled cross-sectional cohort of 80 intact laboratory Beagles spanning 1 to 11 years of age. Canine immune aging is heterogeneous and non-linear. While several absolute leukocyte counts declined with age before rising again in geriatric dogs, serum cytokines exhibited distinct,...
Association of systemic aging and frailty with retinal alterations: insights from an integrated exposome and metabolome framework
Systemic aging alters ocular structures and plasma metabolome, yet relationships between multidimensional biological aging, environmental exposomes, plasma metabolism, and retinal changes remain uncharacterized. This study evaluated how these phenotypic networks align with retinal structural variations. Following rigorous screening, 45,542 UK Biobank participants (2006-2010) were analyzed. Systemic aging was quantified using PhenoAge acceleration, Klemera-Doubal method age acceleration (KDM-BA),...
Single-cell transcriptomic reference map of human peripheral blood γδ T cells from 1 year to 90 years reveals major changes before adulthood
γδ T cells have an unconventional biology as they develop as functional cells in the thymus, to thereafter adapt to postnatal cues and persist into adulthood in peripheral blood. Single-cell transcriptomics enables investigation of underlying molecular programs of γδ T cell effector functions in health and disease. However, the effect of age is often underestimated, and control transcriptome datasets of young healthy individuals are rare. Here, we generate a cost-effective single-cell...
A machine learning-derived aging index for risk stratification and mortality prediction in cardiovascular-kidney-metabolic syndrome: A retrospective cohort study
CONCLUSIONS: CKMAI is a valid, CKM‑specific aging index that outperforms universal biological age measures in predicting mortality and identifying high‑risk CKM status. Its super‑additive interactions with PhenoAge and the partial mediation by depression offer new mechanistic insights into CKM heterogeneity. By integrating a diverse set of clinical laboratory measures, nutritional assessments, lifestyle factors, and social determinants of health, CKMAI provides a practical, implementable tool...
Late-onset preeclampsia is characterized by accelerated placental aging
Late-onset preeclampsia (LOPE) is a major pregnancy complication characterized by hypertension and placental dysfunction, resolving only upon delivery. Here, we show that LOPE placentae undergo accelerated molecular aging, marked by telomere attrition, DNA damage, and trophoblast senescence. Using primary placental tissue and trophoblast organoids, we demonstrate oxidative stress as a driver of telomere shortening and angiogenic imbalance. Inflammation did not alter placental aging trajectories....
Neuropeptide Y and brain ageing: an updated scoping review on the role of autophagy
Brain ageing is a complex physiological process characterised by progressive structural and functional changes that often result in cognitive decline and reduced quality of life in the elderly. These changes are driven by multiple mechanisms, including synaptic dysfunction, oxidative stress, neuroinflammation, and impaired cellular homeostasis. Neuropeptides have emerged as important regulators of these processes. Among them, neuropeptide Y (NPY) has gained attention for its potential role in...
Global research architecture of RNA-binding proteins in neurodegenerative diseases: a web of science bibliometric study with PubMed record verification, 2001-2025
CONCLUSION: The maps document a WoS-derived and PubMed-verified literature corpus concentrated on TDP-43 and ALS/FTD and increasingly connected with cryptic RNA processing, condensate biology, nuclear transport, neuroimmune responses, and aging-related mixed proteinopathies. Because the corpus was conditioned by a title-level query containing named RBPs and by PubMed record verification, these patterns should not be interpreted as an unbiased ranking of RBP biology or as evidence of shared...