BARTÁKOVÁ, Anna, Tibor STRAČINA, Eva OPATŘILOVÁ and Marie NOVÁKOVÁ. Guinea Pig ECG Changes under the Effect of New Drug Candidate TP28b. Online. In Computing in Cardiology 2021. Neuveden: IEEE, 2021, p. 1-4. ISBN 978-1-6654-7916-5. Available from: https://dx.doi.org/10.23919/CinC53138.2021.9662793.
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Basic information
Original name Guinea Pig ECG Changes under the Effect of New Drug Candidate TP28b
Name in Czech Změny EKG u morčete pod vlivem nového farmaka TP28b
Authors BARTÁKOVÁ, Anna (203 Czech Republic, guarantor, belonging to the institution), Tibor STRAČINA (703 Slovakia, belonging to the institution), Eva OPATŘILOVÁ (203 Czech Republic, belonging to the institution) and Marie NOVÁKOVÁ (203 Czech Republic, belonging to the institution).
Edition Neuveden, Computing in Cardiology 2021, p. 1-4, 4 pp. 2021.
Publisher IEEE
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 30105 Physiology
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Publication form electronic version available online
WWW URL
RIV identification code RIV/00216224:14110/21:00122659
Organization unit Faculty of Medicine
ISBN 978-1-6654-7916-5
ISSN 2325-8861
Doi http://dx.doi.org/10.23919/CinC53138.2021.9662793
UT WoS 000821955000100
Keywords (in Czech) EKG; morče; testování látek
Keywords in English ECG; guinea pig; drug testing
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Michal Petr, učo 65024. Changed: 27/6/2024 10:54.
Abstract
Anesthetized guinea pig represents a valuable model for evaluation of arrhythmogenic potential of various drugs. Aim of this study was to evaluate arrhythmogenic potential of the TP28b, a new drug candidate with possible beta-adrenergic action. Guinea pigs were anesthetized by isoflurane and jugular vein was cannulated. ECG was recorded by needle electrodes fixed subcutaneously on the chest. Rectal probe was used for continual monitoring of body temperature. Animals were divided into positive control, negative control and test group. The experiment consisted of stabilization, 3 phases of tested drug or vehiculum administration by continual i.v. infusion and recovery. The ECG was recorded and analysed using LabChart 8 Pro software. The heart rate, PR intervals, QRS duration, and QT intervals were measured. QT was corrected according to Framingham study. Our experimental model proved to be stable during the whole experiment since the HR, PR interval, QRS interval, and QTc do not change in negative control in all phases. Esmolol administration led to HR decrease, PQ interval and QRS duration prolongation, whereas only small variations of QTc were detected. Our model proved to be valuable and suitable for testing of newly synthetized drugs with cardiovascular effects.
Abstract (in Czech)
Anesthetized guinea pig represents a valuable model for evaluation of arrhythmogenic potential of various drugs. Aim of this study was to evaluate arrhythmogenic potential of the TP28b, a new drug candidate with possible beta-adrenergic action. Guinea pigs were anesthetized by isoflurane and jugular vein was cannulated. ECG was recorded by needle electrodes fixed subcutaneously on the chest. Rectal probe was used for continual monitoring of body temperature. Animals were divided into positive control, negative control and test group. The experiment consisted of stabilization, 3 phases of tested drug or vehiculum administration by continual i.v. infusion and recovery. The ECG was recorded and analysed using LabChart 8 Pro software. The heart rate, PR intervals, QRS duration, and QT intervals were measured. QT was corrected according to Framingham study. Our experimental model proved to be stable during the whole experiment since the HR, PR interval, QRS interval, and QTc do not change in negative control in all phases. Esmolol administration led to HR decrease, PQ interval and QRS duration prolongation, whereas only small variations of QTc were detected. Our model proved to be valuable and suitable for testing of newly synthetized drugs with cardiovascular effects.
Links
MUNI/A/1246/2020, interní kód MUName: Kardiovaskulární systém: od iontového kanálu k celotělovému modelu (Acronym: KAVASYKAMO)
Investor: Masaryk University
MUNI/IGA/1098/2020, interní kód MUName: Arrhythmogenic potential of TP-1 in animal model
Investor: Masaryk University
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