Endothelium


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endothelium

[‚en·də′thē·lē·əm]
(histology)
The epithelial layer of cells lining the heart and vessels of the circulatory system.

Endothelium

 

a tissue found in animals and man consisting of specialized cells that line the inner surfaces of blood and lymph vessels, as well as the cavities of the heart. The endothelium is formed from the mesenchyme. It consists of a single layer of closely packed flat cells, which are usually separated from underlying tissues by a basal membrane. The endothelium of lymph vessels has no basal membrane. The cytoplasm of endothelial cells of certain capillaries may have pores that account for the permeability of the capillary wall, as, for example, in the renal glomeruli.

The endothelium of the enlarged capillaries of the blood-forming organs and the endothelium present in the liver, adrenal cortex, and certain other organs has a great capacity for phagocytosis. The endothelial cells of these organs belong to the reticuloendothelial system.

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Vascular reactivity of the different fractions was assessed using porcine coronary artery rings either with or without endothelium, and in the presence or absence of specific pharmacological tools.
Endothelium-independent vasorelaxant effect of a Berberis orthobotrys root extract via inhibition of phosphodiesterases in the porcine coronary artery
The normal endothelium shows a pattern of cells of similar size and shape with no abnormal dark or bright structures.
Cross-sectional study to assess and grade the quality of donor corneal material
Damage to the vascular endothelium alters the formation and release of endothelial factors.
Endothelial dysfunction: the origin of atherosclerosis
Although surgical techniques to replace the injured corneal endothelium have been developed, these procedures are technically difficult and challenging due to a shortage of donor corneas.
Specially grown cells may restore vision after corneal dysfunction
Conclusion: Testosterone induces endothelium and sex-dependent relaxation on sheep coronary artery in vitro.
The effects of testosterone on isolated sheep coronary artery/Izole koyun koroner arterinde testosteronun etkileri
However, advances over the past 30 years have revealed that the endothelium acts more like an organ that lines the whole of the circulatory system from the "heart to the smallest capillaries," and whose cells carry out many unique biological functions.
Vitamin D-3 could 'reverse' damage to heart
The authors of the study suggest that vitamin D3 may be of clinical importance in the restoration of dysfunctional cardiac endothelium after heart attack, capillary endothelium after brain ischemia (stroke), hypovolemia, vasculopathy, diabetes and atherosclerosis.
Heal cardiovascular damage with Vitamin D3
Differences in corneal thickness and corneal endothelium related to duration in Diabetes.
Comparison of corneal morphological characteristics between diabetic and non diabetic population
Due to the existence of interspecies variations in endothelial parameters, knowledge of normal data on the endothelium in each species is necessary.
Corneal endothelial cell density and morphology in rabbits' eyes using contact specular microscopy/Densidade celular e morfologia das celulas do endotelio da cornea de coelhos obtidas com microscopia especular
6] M phenylephrine (see first set of experiments), aortic rings with intact endothelium were preincubated for 30 min with one (or two) of various compounds in order to explore the mechanisms involved in the vasorelaxant effect produced by clobenzorex.
Possible mechanisms involved in the vasorelaxant effect produced by clobenzorex in aortic segments of rats
Microvascular endothelium injury and dysfunction can cause tissue edema, ischemia, and hypoxia, finally resulting in organ function failure.
Sepsis and Intestinal Microvascular Endothelial Dysfunction
Much attention should be paid to the corneal endothelium.
Polymegathism, pleomorphism, and endothelial cell count after selective laser trabeculoplasty

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