Metabolic Pathways Library
Every article, presentation, spotlight, and news item we've tagged to Metabolic Pathways.
Showing 97–120 of 148
TFEB Restores Autophagic Defense in Aging Kidneys
Aging impairs the kidney's autophagic response to toxic stress, leaving older individuals vulnerable to acute kidney injury. Restoring TFEB-mediated autophagy through pharmacological intervention partially reverses this age-related vulnerability in cellular models.
Exceptional Longevity Modifying Allele APOE2 Promotes DNA Signaling Pathways Resisting Cellular Senescence in Human Neurons
APOE2, a genetic variant associated with exceptional longevity, activates DNA repair pathways and resists cellular senescence in neurons, while APOE4 exhibits elevated DNA damage and senescence markers. This mechanism extends beyond lipid metabolism, explaining APOE2's protective effects against neurodegeneration.
Inferring Gene Regulatory Network Architecture Underlying Complex Traits: An Integrative Analysis of Mutant Lifespan and Gene Expression Profiles Identifies Master Regulators and Key Functional Modules for Yeast Aging
Researchers identified a hierarchical gene regulatory network controlling yeast lifespan, where peripheral genes act through master regulators that converge on functional modules governing stress response, autophagy, and proteostasis. This architecture provides a framework for dissecting genetic complexity in aging and maps directly to mechanisms that influence human longevity pathways.
Lactose‐Derived Carbohydrates Induce Sexually Dimorphic Nutritional Programming Effects on Lifespan in Drosophila melanogaster
Early-life consumption of galactose and glucose (lactose components) extends lifespan in female flies exposed to obesogenic diets in adulthood through reprogramming of lipid metabolism, while reducing lifespan in males. This nutritional programming effect demonstrates that early dietary composition establishes metabolic resilience patterns that persist throughout life and respond differentially by sex.
Aged Male Mice Remain Glucose Tolerant Despite Increased Energy Storage Efficiency Favoring Diet‐Induced Obesity
Aged male mice maintain glucose tolerance despite accumulating more fat on a high-fat diet than younger counterparts, a metabolic uncoupling driven by increased energy storage efficiency and reduced lipid turnover. This finding indicates that obesity and glucose dysregulation diverge with age, presenting distinct intervention targets for metabolic health in older populations.
GPR81 activation reverses age-linked muscle lipid accumulation
Loss of the lactate receptor GPR81 drives lipid accumulation and accelerates aging hallmarks in muscle tissue. Activating GPR81 reverses these changes in both cultured cells and progeroid mice, restoring lipid oxidation capacity and muscle regeneration.
D-pinitol extends the lifespan of Caenorhabditis elegans through integrated antioxidant defense, proteostasis, and autophagy signaling
D-pinitol, a naturally occurring inositol derivative, extends lifespan in C. elegans by coordinating three distinct cellular mechanisms: antioxidant defense, protein stability (proteostasis), and autophagy. This multi-pathway activation suggests a compound that addresses fundamental aging processes rather than targeting a single intervention point.
Intermittent chloroquine extends lifespan by enhancing cellular clearance
Intermittent chloroquine treatment extended lifespan in female rats while preventing mammary hyperplasia and reducing circulating LDL and IGFBP3—markers associated with metabolic dysfunction and tissue overgrowth. This intervention operates through cellular clearance mechanisms, suggesting a pathway distinct from standard pharmaceutical approaches to longevity.
Correction to “Monoamine Oxidase‐A Is a Novel Driver of Stress‐Induced Premature Senescence Through Inhibition of Parkin‐Mediated Mitophagy”
This correction addresses methodological refinements in research demonstrating that monoamine oxidase-A drives stress-induced cellular aging by disrupting the cell's ability to clear damaged mitochondria. The finding clarifies a direct mechanism linking stress response dysfunction to accelerated senescence at the mitochondrial level.
The Mitochondrial NAD Transporter SLC25A51 in Adipocytes Regulates Adipose Tissue Mitochondrial Function and Systemic Metabolism During Aging
SLC25A51, a mitochondrial NAD transporter in fat cells, declines with age and directly regulates adipose tissue energy metabolism and systemic insulin sensitivity. Loss of this transporter accelerates metabolic disease phenotypes; its restoration protects against obesity and insulin resistance in aging.
Pretzel Therapeutics presents PX578 data supporting POLG disease treatment
PX578, a first-in-class small molecule activator of mitochondrial DNA polymerase gamma, demonstrated preclinical efficacy in restoring mitochondrial DNA levels and cellular energy production across multiple POLG disease models. The compound addresses the underlying genetic defect in mitochondrial DNA depletion syndromes, for which no disease-modifying treatments currently exist.
Pulmatrix and Eos merge to advance gerotherapeutics
Pulmatrix and Eos SENOLYTIX are merging to develop PTC-2105, a candidate designed to modulate mitochondrial function and clear senescent cells in sarcopenia and metabolic disease. The transaction signals a fundamental shift in biopharma toward targeting aging biology directly rather than its downstream manifestations.
The glycolytic metabolite phosphoenolpyruvate restricts cGAS-driven inflammation to promote healthy aging
Phosphoenolpyruvate, a glycolytic metabolite, suppresses cGAS-STING-driven inflammation and improves cognitive function in Alzheimer's disease models while correlating with healthy aging markers in humans. This identifies a metabolic checkpoint that regulates innate immune signaling during aging.
AGGF1 and SESN2 preserve endothelial function in aging
AGGF1, a protein that declines with age and hypertension, preserves blood vessel function by regulating SESN2 expression and reducing oxidative stress. This pathway offers a mechanistic target for intervening in age-related blood pressure elevation before it becomes established disease.
Sarcopenia Therapy Targets Three Pathways Simultaneously
Rejuvenate Biomed has enrolled 198 patients in a Phase 2 trial of RJx-01, a multi-pathway therapeutic targeting COPD-induced sarcopenia through mitochondrial function, inflammation, and fibrosis. This represents the first pharmacological approach to sarcopenia, a condition that accounts for substantial disability and frailty in aging populations and currently lacks approved treatments.
Gut Bacteria Strain Reverses Age-Related Lung Fibrosis
A Lactobacillus strain (L9) found in centenarians reduces pulmonary fibrosis in aging mice by 30% through a metabolite-signaling pathway that suppresses collagen synthesis. The mechanism operates through the JNK signaling cascade and senescence-associated inflammatory cytokines, establishing a direct gut-to-lung biochemical axis relevant to fibrotic disease prevention.
Citrus Flavonoid Restores Liver Metabolic Aging
Hesperetin, a flavonoid found in citrus peels, activates a specific signaling pathway (Hmgcs2-Pparα-Cisd2) that slows hepatic aging in preclinical models. This mechanism links dietary compounds to mitochondrial function and metabolic regulation—core processes governing healthy lifespan.
Adipose‐Specific GHR Deletion Attenuates Brain Aging and Cognitive Decline in Aged Mice
Blocking growth hormone signaling specifically in adipose tissue reduces neuroinflammation, preserves synaptic integrity, and improves cognitive performance across multiple domains in aged mice. This identifies peripheral adipose tissue as an unexpected regulator of brain aging, suggesting a therapeutic target for age-related cognitive decline.
Select Small Non‐Coding RNAs Are Determinants of Survival in Older Adults
Circulating small RNAs, particularly nine piRNAs, predict two-year survival in older adults with greater accuracy than age and clinical factors alone, with experimental evidence suggesting reduced piRNA levels associate with extended lifespan. These findings identify specific small RNA signatures as measurable biomarkers and potential therapeutic targets for longevity interventions.
APOE2 DNA Repair Mechanism Explains Neuronal Longevity
The APOE2 gene variant protects neurons through enhanced DNA repair mechanisms and resistance to cellular senescence, independent of its traditional role in lipid metabolism. This finding redirects therapeutic strategy toward genomic stability as a primary driver of neuronal longevity and dementia prevention.
Structured Exercise Reverses Molecular Muscle Aging
Structured exercise training—defined as planned sessions of at least one hour three times weekly—partially reverses the molecular signature of muscle aging in older adults, particularly in genes governing mitochondrial function and energy metabolism. This protection occurs even when total daily activity levels between trained and sedentary older adults are similar, indicating that exercise intensity and consistency, not mere movement volume, drive these cellular adaptations.
SIRT6 Gene Therapy Improves Survival in Aging Dogs
Genflow's SIRT6-targeted gene therapy in aging dogs showed improved survival at three months post-treatment with no adverse events reported. The trial, enrolling 24 beagles over age 10, represents an early-stage assessment of whether genetic interventions can reverse hallmarks of aging in a mammalian model relevant to human longevity research.
Deal between Chrysea, nuBioAge brings spermidine to clinics
A partnership between Chrysea Labs and nuBioAge moves spermidine into clinician-guided care through healthcare practitioners and pharmacies, signaling a shift toward evidence-based delivery of longevity interventions within clinical frameworks rather than direct-to-consumer wellness channels. This approach addresses a critical gap: standardized formulations and practitioner guidance that enable reproducible outcomes.
GLP-1 enhancement preserves muscle while stopping weight regain
MS 001, an oral purine nucleoside phosphorylase inhibitor, enhanced GLP-1 receptor agonist efficacy in preclinical models by producing greater weight loss while preserving muscle mass and reducing weight regain after drug discontinuation. The mechanism appears to involve activation of thermogenic pathways in adipose tissue, suggesting a complementary approach to current weight management strategies.