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Description
  • Na devadesáti normotenzních laboratorních potkanech kmene Wistar samčího pohlaví byly testovány ve čtyřech rozdílných dávkách změny srdeční frekvence dvou nově syntetizovaných potenciálních ultrakrátce působících antagonistů beta adrenergních receptorů. Změna srdeční frekvence byla testovány na modelu isoprenalinem indukované tachykardie. Jejich efekt byl srovnáván s účinkem esmololu. Ve druhé části práce jsme provedli orientační elektrofyziologické měření vlivu testovaných látek na iontové membránové proudy izolovaných komorových kardiomyocytů in vitro. Obě látky vykazují ve všech testovaných koncentracích signifikantní bradykardický efekt vůči placebu, ale liší se v rychlosti nástupu účinku. Obě nově syntetizované látky, vyvolávající blokádu sodíkového depolarizačního proudu I Na a draslíkových proudů (I to, I K1, I K, end). (cs)
  • Changes in the heart rate induced by four different doses of two newly synthesized potential ultrashort-action antagonists of beta adrenergic receptors were tested in 90 male laboratory Wistar rats. The isoprenaline-induced tachykardia model was used. Their effects were compared with those of esmolol. In the second part of the study, approximate electro-physiological measurements were made in vitro to assess the influence of the compounds tested on ion membrane currents in isolated ventricular cardiomycytes. Both compounds demonstrated significant bradycardic effects in all concentrations tested compared with the control group, but they differed in the time of the onset of their action. Both newly synthesized compounds induced blockade of the fast sodium current (I Na) and potassium currents (I to, I K1 I K,end).
  • Changes in the heart rate induced by four different doses of two newly synthesized potential ultrashort-action antagonists of beta adrenergic receptors were tested in 90 male laboratory Wistar rats. The isoprenaline-induced tachykardia model was used. Their effects were compared with those of esmolol. In the second part of the study, approximate electro-physiological measurements were made in vitro to assess the influence of the compounds tested on ion membrane currents in isolated ventricular cardiomycytes. Both compounds demonstrated significant bradycardic effects in all concentrations tested compared with the control group, but they differed in the time of the onset of their action. Both newly synthesized compounds induced blockade of the fast sodium current (I Na) and potassium currents (I to, I K1 I K,end). (en)
Title
  • Ultrashort bradycardic effect of newly synthesized compounds.
  • Ultrakrátký bradykardický účinek nově syntetizovaných sloučenin (cs)
  • Ultrashort bradycardic effect of newly synthesized compounds. (en)
skos:prefLabel
  • Ultrashort bradycardic effect of newly synthesized compounds.
  • Ultrakrátký bradykardický účinek nově syntetizovaných sloučenin (cs)
  • Ultrashort bradycardic effect of newly synthesized compounds. (en)
skos:notation
  • RIV/62157124:16170/07:00000632!RIV08-GA0-16170___
http://linked.open.../vavai/riv/strany
  • 183-196
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA305/06/0863), P(GP203/03/D182), S
http://linked.open...iv/cisloPeriodika
  • N
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 456488
http://linked.open...ai/riv/idVysledku
  • RIV/62157124:16170/07:00000632
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • ester-functional group; membrane currents; esmolol (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [C64AC460D00C]
http://linked.open...i/riv/nazevZdroje
  • Acta veterinaria Brno
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • N
http://linked.open...iv/tvurceVysledku
  • Bébarová, Markéta
  • Mokrý, Petr
  • Nečas, Jiří
  • Strnadová, Věra
  • Opatřilová, Radka
  • Bartošová, Ladislava
  • Beránková, Kateřina
  • Bartošíková, Lenka
  • Brunclík, Vít
  • Frydrych, Marek
  • Kolevská, Jana
  • Krčmář, Josef
  • Florian, Tomáš
  • Vaculová, Gabriela
issn
  • 0001-7213
number of pages
http://localhost/t...ganizacniJednotka
  • 16170
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