ArticleAmerican journal of physiology. Heart and circulatory physiology2018
Advanced age results in a diminished endothelial glycocalyx.
Article in American journal of physiology. Heart and circulatory physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 1 of them a synthesis that pooled it.
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Who cites it
86 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.
- Biomarkers of endothelial glycocalyx dysfunction in pregnancy: a systematic review of clinical relevance and detection techniques.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026Pooled it
- Sex differences in endothelial glycocalyx thickness and the response to glycocalyx-targeted therapy among older adults.Physiological reports · 2025Trial
- Effect of glycocalyx-targeted therapy on vascular function in older adults: a randomized controlled trial.Journal of applied physiology (Bethesda, Md. : 1985) · 2024Trial
- Trial
- Endothelial Exostosin-1 Is Needed for Glycocalyx Integrity and Inflammatory Resolution in Acute Lung Injury.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026Article
- Hyaluronan deficiency disrupts endothelial glycocalyx integrity and contributes to age-related arterial dysfunction.GeroScience · 2026Article
- The senescence-stiffening loop: Extracellular matrix remodeling, hypoperfusion, and mitochondrial dysfunction drive tissue aging.Cell metabolism · 2026Review
- Mechanisms of Hypertension in Women: Interactions Between Vascular Ageing, Metabolic Dysfunction, and Hormonal Regulation.Biomedicines · 2026Review
- Glycocalyx and basal lamina in neurological disorders.Matrix biology : journal of the International Society for Matrix Biology · 2026Review
- Glycocalyx degradation: exploring related mechanisms, pathophysiological significance, and therapeutic prospects.Journal of physiology and biochemistry · 2026Review
- Sublingual Sidestream Dark Field (SDF) Microscopy With GlycoCheck Analysis in Individuals With and Without Cardiovascular Risk Factors and Disease.Journal of the American Heart Association · 2026Article
- The Mediating Role of Biological Age Advance in the Association Between Periodontitis and Mortality: Biological Aging Links Periodontitis to Mortality.Clinical and experimental dental research · 2026Article
- Western diet-induced endothelial glycocalyx remodeling is partially reversed by fasting.American journal of physiology. Heart and circulatory physiology · 2025Article
- Time course and contributors to greater glycocalyx thickness and integrity following Western diet consumption.American journal of physiology. Heart and circulatory physiology · 2025Article
- Glycocalyx-targeted therapy prevents age-related muscle loss and declines in maximal exercise capacity.Aging · 2025Article
- Endothelial Glycocalyx in Cerebral Infarction After Endovascular Treatment in Patients With Intracranial Artery Stenosis.CNS neuroscience & therapeutics · 2025Observational
- TcMAC21 mouse model recapitulates abnormal vascular physiology observed in humans with Down syndrome.Physiological reports · 2025Article
- Endothelial Glycocalyx Turnover in Vascular Health and Disease: Rethinking Endothelial Dysfunction.Annual review of biochemistry · 2025Review
- Endothelial Dysfunction and Cardiovascular Disease: Hyperbaric Oxygen Therapy as an Emerging Therapeutic Modality?Journal of cardiovascular development and disease · 2024Review
- Syndecan 4 is a marker of endothelial inflammation in pathological aging and predicts long-term cardiovascular outcomes in type 2 diabetes.Diabetology & metabolic syndrome · 2024Article
26 more citing papers are in PubMed but not listed here.
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
Age-related microvascular dysfunction is well characterized in rodents and humans, but little is known about the properties of the microvascular endothelial glycocalyx in advanced age. We examined the glycocalyx in microvessels of young and old male C57BL6 mice (young: 6.1 ± 0.1 mo vs. old: 24.6 ± 0.2 mo) using intravital microscopy and transmission electron microscopy and in human participants (young: 29 ± 1 yr vs. old: 60 ± 2 yr) using intravital microscopy. Glycocalyx thickness in mesenteric and skeletal muscle microvessels was 51-54% lower in old compared with young mice. We also observed 33% lower glycocalyx thickness in the sublingual microcirculation of humans in advanced age. The perfused boundary region, a marker of glycocalyx barrier function, was also obtained using an automated capture and analysis system. In advanced age, we observed a 10-22% greater perfused boundary region in mice and humans, indicating a more penetrable glycocalyx. Finally, using this automated analysis system, we examined perfused microvascular density and red blood cell (RBC) fraction. Perfused microvascular density is a marker of microvascular function that reflects the length of perfused microvessel segments in a given area; RBC fraction represents the heterogeneity in RBC presence between microvessel segments. Compared with young, the perfused microvascular density was 16-21% lower and RBC fraction was 5-14% lower in older mice and in older humans. These data provide novel evidence that, across mammalian species, a diminished glycocalyx is present in advanced age and is accompanied by markers of impaired microvascular perfusion. Age-related glycocalyx deterioration may be an important contributor to microvascular dysfunction in older adults and subsequent pathophysiology. NEW & NOTEWORTHY Advanced age is characterized by microvascular dysfunction that contributes to age-related cardiovascular diseases, but little is known about endothelial glycocalyx properties in advanced age. This study reveals, for the first time, lower glycocalyx thickness and barrier function that is accompanied by impaired microvascular perfusion in both mice and humans in advanced age.
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