Perphenazine-induced block of sodium and transient outward potassium current: experimental and simulation study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F08%3A00314950" target="_blank" >RIV/61388998:_____/08:00314950 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Perphenazine-induced block of sodium and transient outward potassium current: experimental and simulation study
Original language description
The effect of a neuroleptic drug perphenazine on sodium current INa and transient outward potassium current Ito was studied in rat ventricular myocytes at room temperature. Perphenazine reversibly blocked INa (reducing its amplitude; IC50 = 1.24 +/- 0.10?mol/l, nH =0.99 +/- 0.08) and Ito (accelerating its apparent inactivation with a slight decrease of its amplitude; IC50 = 38.2 +/- 3.5 ?mol/l, nH = 0.75 +/- 0.07, evaluated from the changes of time integral). Both INa- and Ito-block was use- and frequency-dependent (20%-increase of INablock and 10%-increase of Ito-block under 0.3 and 10 ?mol/l perphenazine, respectively, at the stimulation frequency of 3.3 Hz applied after a 15-s rest). The results of quantitative modelling suggest that perphenazine interacts with INa-channels in inactivated states, and with Ito-channels in both open and open-inactivated states.
Czech name
Blokáda sodíkového a přechodného draslíkového proudu perfenazinem: experimentální a simulační studie
Czech description
Práce prezentuje výsledky experimentálních měření účinků psychofarmaka perfenazinu na rychlý sodíkový proud (INa) a přechodný draslíkový proud (Ito) u komorových buněk potkana. Mechanizmus blokády obou proudů je vyšetřován prostřednictvím matematických modelů.
Classification
Type
D - Article in proceedings
CEP classification
BO - Biophysics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Analysis of Biomedical Signals and Images
ISBN
978-80-214-3612-1
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
Vutium Press
Place of publication
Brno
Event location
Brno
Event date
Jun 29, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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