• Thromboxane A2 is also a known vasoconstrictor and is especially important during tissue injury and inflammation. (wikipedia.org)
  • In addition to these functions, it modulates vascular tone by synthesizing and releasing a number of vasoactive factors that may have vasodilatory effects, such as nitric oxide (NO), prostacyclin (PGI 2 ), and endothelium-derived hyperpolarizing factor, and vasoconstrictor effects, such as thromboxane A 2 and endothelin-1 (ET-1) [ 8 ] . (encyclopedia.pub)
  • Thromboxane A2 (TXA2) is a type of thromboxane that is produced by activated platelets during hemostasis and has prothrombotic properties: it stimulates activation of new platelets as well as increases platelet aggregation. (wikipedia.org)
  • This is achieved by activating the thromboxane receptor, which results in platelet-shape change, inside-out activation of integrins, and degranulation. (wikipedia.org)
  • La selecci n y el cuidado del donador antes de la procuraci n de los rganos juegan un papel primordial en los resultados en el receptor. (medigraphic.com)
  • En este art culo revisamos aspectos hist ricos y avances recientes en el manejo de estos pacientes incluyendo indicaciones y contraindicaciones, evaluaci n y cuidado del donador y del receptor, t cnica quir rgica y manejo peri- y posoperatorio. (medigraphic.com)
  • TXA2 is very unstable in aqueous solution, since it is hydrated within about 30 seconds to the biologically inactive thromboxane B2. (wikipedia.org)
  • In human studies, 11-dehydrothromboxane B2 levels are used to indirectly measure TXA2 production. (wikipedia.org)
  • Thus, we have investigated the effect of ethanol on paracrine substances, such as thromboxane and prostacyclin, that act as vasoregulators within the intrauterine tissues. (nih.gov)
  • The thromboxane:prostacyclin ratio also tended to increase with both 60- and 240-min ethanol exposure, but a statistically significant increase was seen only at a few time points. (nih.gov)
  • Thromboxane synthase inhibitors inhibit the final enzyme ( thromboxane synthase ) in the synthesis of thromboxane. (wikimili.com)
  • Some of these mediators such as histamine, neutral proteases including tryptase, chymase and cathepsin-D, as well as arachidonic acid products such as leukotrienes, PAF and thromboxane have important cardiovascular actions. (medscape.com)
  • The various mechanisms believed to be responsible are pulmonary arterial vasoconstriction and elevated pulmonary artery pressure, resulting in circulatory shear forces and a consequent permeability leak and antidiuresis possibly mediated by increased antidiuretic hormones, which contribute to fluid retention. (medscape.com)
  • Thromboxane A2-induced contraction of rat caudal arterial smooth muscle involves activation of Ca2+ entry and Ca2+sensitization: Rho-associated kinase-mediated phosphorylation of MYPT1 at Thr-855 but not Thr-697" (PDF). (wikipedia.org)
  • The coronary arterial plasma withdrawn before stenting induced 21ýý5% and the aspirate plasma after stenting induced 95ýý8% of maximum KCl-induced vasoconstriction. (nih.gov)
  • Thromboxane inhibitors are broadly classified as either those that inhibit the synthesis of thromboxane, or those that inhibit the target effect of it. (wikimili.com)
  • TXA2 is very unstable in aqueous solution, since it is hydrated within about 30 seconds to the biologically inactive thromboxane B2. (wikipedia.org)
  • In human studies, 11-dehydrothromboxane B2 levels are used to indirectly measure TXA2 production. (wikipedia.org)
  • Serotonin, thromboxane B(2), and TNFýý release into aspirate plasma increased by 1.9ýý0.2 ýýmol/L, 25.6ýý3.1 pg/mL, and 19.7ýý6.1 pg/mL, respectively, during stenting. (nih.gov)
  • Thromboxane is named for its role in blood clot formation ( thrombosis ). (wikimili.com)
  • People with asthma tend to have increased thromboxane production, and analogs of thromboxane act as bronchoconstrictors in patients with asthma. (wikimili.com)
  • In the 60-min ethanol exposure, an increase in thromboxane was observed both during and following exposure to ethanol. (nih.gov)
  • The increase in the thromboxane milieu observed with ethanol exposure may lead, at least in part, to the IUGR which is frequently associated with FAS. (nih.gov)