Wynik wyszukiwania w bazie Polska Bibliografia Lekarska GBL

Zapytanie: RYBUS-KALINOWSKA
Liczba odnalezionych rekordów: 1



Przejście do opcji zmiany formatu | Wyświetlenie wyników w wersji do druku
1/1

Tytuł oryginału: Influence of SKF 91488, histamine n-methyltransferase inhibitor, on the central cardiovascular regulation during controlled, stepwise hemorrhagic hypotension in rats.
Autorzy: Jochem Jerzy, Żwirska-Korczala Krystyna, Rybus-Kalinowska Barbara, Jagodzińska Julia, Korzonek-Szlacheta Ilona
Źródło: Pol. J. Pharmacol. 2002: 54 (3) s.237-244, il., tab., bibliogr. 31 poz.
Sygnatura GBL: 313,156

Hasła klasyfikacyjne GBL:
  • kardiologia

    Typ dokumentu:
  • praca doświadczalna
  • tytuł obcojęzyczny

    Wskaźnik treści:
  • zwierzęta
  • szczury
  • płeć męska

    Streszczenie angielskie: The histamine system influences various activities of the central nervous system, including cardiovascular regulation. Histamine administered intracerebroventricularly (icv) in anesthetized rats produces the increase in mean arterial pressure (MAP) and xdheart rate (HR), however, in contrast to normotensive animals, histamine-induced rises in MAP an dHR in critically hypotensive animals are significantly higher. Similarly to exogenous histamine, inhibition of the central histamine N-methyltransfer (HNMT) activity (the enzyme catabolizing histamine in the central nervous system) resulting in the increase in endogenous histamine concentration, also leads to the pressor effect in normotensive rats. The present study was designed to determine the role of endogenous centarl histamine in cardiovascular regulation in a rat model of blood volume-blood pressure controlled hemorrhagic hypotension. In normotensive animals, HNMT inhibitor SKF 91488 produced dose-dependent (20-100 ćg icv) pressor effect accompanied by tachycardia, similarly as exogenous histamine (0.5-5 ćg icv) did. The subpressor dose of SKF 91488 (10 ćg) evoked the increased in blood volumes necessary to induce hypotension of 40 and 20 mmHg and the action was accompanied by the rise in histamine concentrations in the hypothalamus (5.18 ń 0.45 vs 4.23 ń 0.41 nmol/g; p 0.5) and medulla oblongata (0.41 ń 0.05 vs 0.30 ń 0.06 nmol/g; p 0.05), with no changes in the cortical histamine concentrations (0.84 ń 0.18 vs 0.75 ń 0.17 nmol/g), compared to the conrol icv saline-treated group...

    stosując format: