9 resultados
Hypoxia is contributed in various pathophysiological conditions including obesity, cardiovascular diseases, and cancer. In cancer, hypoxia is a salient phenomenon and has been correlated with tumor progression, metastasis, and provoke resistance to therapies in cancer patients, which exert with
The effect of hypoxia was investigated in human (HPA) and rat (RPA) pulmonary arteries. Hypoxia-induced contraction was 95 +/- 8.7% and 9.3 +/- 4.8% of the control response to K(+)-rich (80 mM) solution in HPA and RPA, respectively (n = 10). When RPA strips were precontracted with phorbol 12,13
OBJECTIVE
To determine the contribution of decreased calcium responsiveness of fetal coronary arteries to decreased contractile responses to potassium and the thromboxane A(2) analogue U46619 in these arteries after exposure to chronic hypoxemia.
METHODS
Concentration-response curves to Ca(2+) in
Chronic hypoxia has a profound effect on uterine artery adaptation to pregnancy. The present studies tested the hypothesis that pregnant kinase C (PKC) differentially regulates alpha(1)-adrenoceptor-mediated contractions and Ca(2+) sensitivity in the uterine arteries of nonpregnant and pregnant
Escin, hydroxyethylrutoside (HR), and Daflon have been shown to be safe and effective for the treatment of chronic venous insufficiency (CVI). They seem to work differently than compression therapy, suggesting that they would usefully augment this therapy. All three phlebotonics attenuate the drop
The saponin fraction of Aesculus chinensis Bunge fruits (SFAC) could inhibit the invasion and migration of MDA-MB-231 cells. Among which, escin Ia showed more potent inhibition of the invasion than other five main saponin constituents. It selectively reduced the expression of LOXL2 mRNA and promoted
This review discusses historical and recent pharmacological and clinical data on the anti-edematous, anti-inflammatory, and venotonic properties of escin (Reparil®). Escin, the active component of Aesculus hippocastanum, or horse chestnut, is available as orally absorbable dragées
To demonstrate a Ca(2+)-independent component of hypoxic vasorelaxation and to investigate its mechanism, we utilized permeabilized porcine coronary arteries, in which [Ca(2+)] could be clamped. Arteries permeabilized with beta-escin developed maximum force in response to free Ca(2+) (6.6 microm),
The aim of the study was to investigate the role of protein kinase C (PKC) in changes in myofilament Ca(2+)-sensitivity of vascular smooth muscle cells (SMC) in rats at different vasospastic states: hypoxic pulmonary vasoconstriction, genetically determined hypertension, and hypertension resulted