Endoteliner Svensk MeSH
Endothelin-3 caused transient forearm vasodilatation at this dose, whereas endothelin-1 showed only a nonsignificant trend toward causing early vasodilatation. 2011-01-26 Endothelin-1 (ET-1) is the most potent endogenous vasoconstrictor and is strongly implicated in the pathogenesis of hypertension and endothelial dysfunction. 3,85,86 ET-1 is produced by endothelial cells in response to stimuli, including VEGF, and its secretion is inhibited by NO, PGI 2, ANP, and epidermal growth factor (EGF). 85,87,88 ET-1 mediates its effects through ET A R and ET B R, both of which are G … Endothelin is a newly described polypeptide derived from endothelial cells. The effects of porcine endothelin on the pulmonary vascular bed and systemic vascular bed were investigated in the anesth 1. The mechanism underlying the vasoconstriction induced by endothelin‐1 (ET‐1) was investigated by measuring the intracellular concentration of Ca2+ ([Ca2+]i), isometric force and phosphorylation of the myosin light chain (MLC) in endothelium‐denuded unskinned and beta‐escin‐treated skinned smooth muscle from resistance vessels of the rabbit mesentery.
Research output: Contribution to journal › Article Administration of endothelin-1 to animals in vivo increases renin, aldosterone, and epinephrine concentrations; here, renin concentration seems to rise because of endothelin-1 induced renal vasoconstriction (Kennedy et al., 1993). Endothelin type A (ETA) and type B (ETB) receptors on vascular smooth muscle cells are up-regulated in organ culture and the enhanced vasoconstriction mimics the changes that occur in cardiovascular disease. The effect of organ culture on endothelial dilatory endothelin ETB receptors is not known. Endothelin B receptor-mediated vasoconstriction induced by endothelin A receptor antagonist Yi Zhang, Yi Zhang a a Cardiology Unit, The Queen Elizabeth Hospital, Function of the endothelin(B) receptor in cardiovascular physiology and pathophysiology.
Several factors increase ET-1 re It is conceivable that the increase in ET-1 efflux induced by BQ-123 mediated the observed vasoconstriction and that the total absence of vasoconstriction despite ET-1 release with bosentan is an indication that the increased ET-1 exerted its effects via the ET B receptors alone.
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192-194. Research output: Contribution to journal › Article Human endothelin ETA receptor antisense oligodeoxynucleotides inhibit endothelin-1 evoked vasoconstriction Adner, Mikael LU; Erlinge, David LU; Salford, Leif LU; Yee, Frances; Wahlestedt, Claes and Edvinsson, Lars LU () In European Journal of Pharmacology 261 (3). p.281-284.
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However, the control experiments using a pure endothelin‐independent vasodilator, i.e.
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On the other hand, immunoreactivity to the vasoconstrictor, endothelin, has been demonstrated throughout the endothelial cell layer of human coronary arteries
Neuropeptide Y treatment induced retinal vasoconstriction and causes Enhanced Endothelin-1 Mediated Vasoconstriction of the Ophthalmic Artery May
and ENDOTHELIN-3. All three peptides contain 21 amino acids, but vary in amino acid composition. The three peptides produce vasoconstrictor and pressor
Vascular hindrance, a calculation of blood pressure divided by blood flow and viscosity, was raised by about 20%, suggesting marked vasoconstriction of
Endothelin-1 is a potent vasoconstrictor mediating its effects via two receptor preferentially situated on smooth muscle cells, mediating vasoconstriction and…
av JC McGrath · 2009 · Citerat av 1 — RC et al. (2009). Increased endothelin-1 reactivity and endothelial vasoconstriction and increases in endothelial cell Ca2+ in hamster cremaster arterioles.
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Research output: Contribution to journal › Article Human endothelin ETA receptor antisense oligodeoxynucleotides inhibit endothelin-1 evoked vasoconstriction Adner, Mikael LU; Erlinge, David LU; Salford, Leif LU; Yee, Frances; Wahlestedt, Claes and Edvinsson, Lars LU () In European Journal of Pharmacology 261 (3). p.281-284. Mark; Abstract Antisense oligodeoxynucleotides to endothelin ETA receptor mRNA were used to characterize vascular smooth Rosiglitazone Attenuated Endothelin-1-Induced Vasoconstriction of Pulmonary Arteries in the Rat Model of Pulmonary Arterial Hypertension via Differential Regulation of ET-1 Receptors. Yahan Liu, 1 Xiao Yu Tian, 2 Yu Huang, 2 and Nanping Wang 1,3. 1 Institute of Cardiovascular Science, Endothelin is a hormone that has been implicated in many populations with elevated CVD risk as it is a potent vasoconstrictor which also can reduce NO bioavailability.
VSM Ca2+was measured with fura-2 AM. ET-1 was added to the superfusion
Cardiovascular Effects of Endothelin The distribution of endothelial and smooth muscle receptors helps to explain the phenomenon that systemic administration of ET-1 causes transient vasodilation (initial endothelial ET B activation) and hypotension, followed by prolong vasoconstriction and hypertension (smooth muscle ET A and ET B activation).
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4 Normal endothelial function mainly depends on the capacity of endothelial cells to produce NO, which is vasoprotective by inhibiting cytokine expression, smooth muscle cell migration, leukocyte adhesion, and platelet aggregation, as well as improving vasodilatory function. 5 TZDs improve endothelial dysfunction.
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Summary Medical Physiology lecture, tutorial work - Vascular
NPY evoked contractions of small coronary arteries with a similar potency to that of endothelin, although to a significantly lower degree. The endothelium is crucially involved in the maintenance of vascular homeostasis. 4 Normal endothelial function mainly depends on the capacity of endothelial cells to produce NO, which is vasoprotective by inhibiting cytokine expression, smooth muscle cell migration, leukocyte adhesion, and platelet aggregation, as well as improving vasodilatory function. 5 TZDs improve endothelial dysfunction.