How to prevent leaky vessels during reperfusion? Just keep that glycocalyx sealant in place!
نویسنده
چکیده
Myocardial edema is a hallmark of ischemia-reperfusion-related cardiac injury. Ischemia-reperfusion has been shown to result in degradation of the endothelial glycocalyx. The glycocalyx is the gel-like mesh of polysaccharide structures and absorped plasma proteins on the luminal side of the vasculature, and in the past decade has been shown to play an important role in protection of the vessel wall, including its barrier properties. Prevention of glycocalyx loss or restoration of a damaged glycocalyx may be a promising therapeutic target during clinical procedures involving ischemia-reperfusion.
منابع مشابه
Glycocalyx degradation during ischemia-reperfusion Using a highly standardized protocol of ischemia-reperfusion, Bruegger and colleagues studied the effect of exogenous NO administration on fluid leakage and glycocalyx damage in Krebs–Henseleit-buffered isolated guinea pig hearts, a model
Myocardial edema is a hallmark of ischemia-reperfusion-related cardiac injury. Ischemia-reperfusion has been shown to result in degradation of the endothelial glycocalyx. The glycocalyx is the gellike mesh of polysaccharide structures and absorped plasma proteins on the luminal side of the vasculature, and in the past decade has been shown to play an important role in protection of the vessel w...
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Background: Hepatic ischemia/reperfusion injury (I/RI) is a multifactorial pathophysiologic process which can lead to liver damage and dysfunction. This study examined the protective effect of dexamethasone on the gene expression of endothelial nitric oxide synthase (eNOS) and endothelin-1 (ET-1) and on the liver tissue damage during warm hepatic I/R. Materials and Methods: A total of 32 mal...
متن کاملGlycocalyx perturbation: cause or consequence of damage to the vasculature?
EARLY ELECTRON MICROSCOPIC observations identified an extracellular coating of anionic polysaccharides on the luminal surface of vascular endothelial cells. This coating was named glycocalyx by Bennet (2) in 1962 and was hypothesized to contribute to the transport properties of the capillary wall. Experimental data to support a physiological role for the endothelial glycocalyx remained lacking ...
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INTRODUCTION Postischemic injury to the coronary vascular endothelium, in particular to the endothelial glycocalyx, may provoke fluid extravasation. Shedding of the glycocalyx is triggered by redox stress encountered during reperfusion and should be alleviated by the radical scavenger nitric oxide (NO). The objective of this study was to investigate the effect of exogenous administration of NO ...
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Background and purpose: Damage caused by ischemia/reperfusion (I/R) is one of the major causes of liver failure during surgeries. Endothelin as the main vasoconstrictor has two receptors; ETA and ETB. Increased number of ETB during ischemia-reperfusion, reduces tissue damages by sinusoidal dilation. This study investigated the effects of dexamethasone against liver endothelial glycocalyx injury...
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عنوان ژورنال:
- Critical Care
دوره 12 شماره
صفحات -
تاریخ انتشار 2008