Every article, presentation, spotlight, and news item we've tagged to Hallmarks of Aging.
Showing 121–144 of 225
ACSS2, an enzyme that metabolizes acetate, is required to maintain oligodendrocyte progenitor cells and sustain myelination across the lifespan. Impaired acetate utilization during aging contributes to declining myelin formation, a hallmark of neurological aging.
Cellular senescence—the accumulation of cells that cease dividing but resist death—has emerged as a primary target in longevity medicine due to evidence that clearing these cells extends healthspan and can address root causes of age-related disease. Senotherapeutics, including senolytics and senomorphics, are transitioning from preclinical studies to clinical trials, though significant challenges in biomarker standardization, cellular heterogeneity, and clinical efficacy remain.
Dietary restriction demonstrates geroprotective effects across species through multiple molecular pathways, though human data remains inconsistent and mechanistic understanding incomplete. This class of intervention represents a critical reference point for evaluating longevity strategies, particularly in identifying which downstream mechanisms drive aging resistance versus which reflect caloric reduction alone.
Stem cell therapy demonstrates potential to address frailty in aging by restoring cellular repair capacity and tissue regeneration. This approach targets a fundamental mechanism of aging decline rather than managing symptoms.
The Senotherapeutics Biomarker Consortium establishes standardized biomarkers for identifying and measuring cellular senescence across tissues and populations, enabling translation of senolytic therapies from research to clinical practice. This addresses a critical gap in longevity medicine: the ability to reliably detect senescent cells and track treatment response in living humans.
Caloric restriction reduces circulating C3a, a complement protein that drives inflammaging in aged tissues. This identifies a specific immunometabolic pathway through which moderate energy restriction extends healthspan in humans.
Gut microbiome composition predicts biological age and directly influences aging trajectories. Maintaining microbial diversity through dietary fiber and exercise represents a measurable pathway to extend healthspan, with fiber supplementation associated with 20–37% improvements in healthy aging outcomes.
Clinical evidence shows transplanted stem cells often fail to survive beyond days, yet patients continue improving—suggesting the therapeutic mechanism resides in transient molecular signals rather than cell persistence. This shift from cellular replacement to signal-based regenerative therapy reframes aging as a coordination failure rather than a structural deficit, with profound implications for scalable longevity medicine.
Fasting and caloric restriction activate ADIOL, a steroid hormone that signals through estrogen receptor β to reduce kynurenic acid in the nervous system and improve healthspan independent of lifespan extension. This mechanism appears evolutionarily conserved and remains effective even when ADIOL is supplemented late in life.
GlycanAge is hosting a conference with Mayo Clinic to advance clinical applications of glycan-based inflammaging markers, which can detect disease risk patterns up to a decade before symptomatic onset. The event aims to integrate chronic-inflammation testing into routine clinical practice.
Aging amplifies the liver's inflammatory and metabolic response to high-fat diet, increasing hepatic steatosis and transcriptional dysregulation. Rapamycin treatment reversed most diet-driven gene expression changes in older mice, reducing steatosis, body weight gain, and markers associated with liver disease progression.
Senotherapeutics—strategies that eliminate or reprogram senescent cells—represent a shift from broad-spectrum senolytic approaches toward precision interventions that target specific cell types and contexts. This progression directly addresses a fundamental mechanism of aging, offering potential to extend healthspan by restoring cellular function rather than relying solely on senescent cell elimination.
Single-nucleus RNA sequencing of vastus lateralis muscle from centenarians reveals a fundamental transcriptional reorganization characterized by a shift from metabolically robust fiber states to dysfunctional states accompanied by denervation and fatty infiltration. FAP-derived BMP and Laminin signaling emerges as a key driver of age-related muscle dysfunction, establishing specific molecular pathways amenable to therapeutic targeting.
Organ-specific aging clocks that integrate multiple molecular data types—genomics, epigenomics, transcriptomics, proteomics, and metabolomics—provide more accurate assessment of biological aging than single-measure approaches. This framework recognizes that individual organs age at different rates, offering a pathway to predict organ-specific disease risk and progression with greater precision.
The NUS Geromedicine Conference (February 2026) addresses the translation gap between geroscience mechanisms and clinical application, bringing together researchers, clinicians, and industry to move from pathway discovery to actionable protocols in real-world longevity practice.
Precision medicine approaches that integrate regenerative therapies, peptides, and personalized diagnostics address the cellular foundations of chronic pain and accelerated aging rather than managing symptoms alone. This shift from symptom suppression to root-cause intervention reflects an emerging understanding that dysfunction across multiple physiological domains—inflammation, energy production, cellular cleanup, and tissue regeneration—converges in conditions labeled as chronic pain or age-related decline.
Senolytic treatment with ABT-263 reduced lung and intestinal inflammation and prevented long-term pulmonary damage in aged mice infected with influenza, though it did not reduce viral replication itself. The findings indicate that pre-existing senescent cells drive inflammatory pathology rather than viral control, suggesting a therapeutic target for improving outcomes in older adults.
Prolonged stress—distinct from acute stress—activates molecular pathways in yeast that recapitulate aging hallmarks including proteostasis collapse and epigenetic dysregulation. These changes are reversible upon stress relief, and the underlying genes are conserved across all life domains, suggesting aging may represent a maladaptive long-term stress response rather than passive damage accumulation.
Mitochondrial stress emerges as a critical mechanism underlying senolytic effectiveness against senescent cells. This finding suggests that the therapeutic benefit of senolytics depends partly on their capacity to induce cellular energy stress, offering a framework for optimizing drug selection and combination strategies in senescence-targeted interventions.
Young muscle-derived stem cells secrete pro-angiogenic and immunomodulatory proteins that decline with age. Systemic transplantation of these young cells into aged mice restored neuromuscular structure and function through paracrine signaling, with effects sustained for two months.
Pck1 enzyme depletion in adipose tissue accelerates cellular senescence and metabolic dysfunction, linking metabolic enzyme loss to accelerated aging in fat cells. This identifies a specific enzymatic mechanism by which declining metabolic capacity in aging tissue drives the accumulation of senescent cells and their inflammatory consequences.
Low-dose rapamycin protects DNA in aging immune cells by reducing damage-induced cell death and senescence markers, suggesting mTOR inhibition preserves immune resilience through direct genoprotection rather than broad immunosuppression. This mechanistic clarity offers a more tractable regulatory and therapeutic pathway than the traditional anti-aging framing.
Chronic acid accumulation from aging and stress depletes the body's buffering capacity, disrupting communication between physiological systems and driving frailty through impaired energy metabolism. This acid-base dysregulation mechanism unifies existing frailty models and identifies diet, exercise, and buffering strategies as therapeutic targets.
This roundup summarizes March 2026 longevity research across multiple domains: mechanisms linking energy production to neurodegeneration, exercise's effect on brain aging, immunosenescence factors, organ-level aging processes, and the interconnection between microbiome composition, psychological state, and systemic aging. The findings collectively advance understanding of how interventions—from resistance training to nutritional composition to social environment—modulate the rate of age-related decline.
