Isoprenaline Impairs Contractile Function of Ventricular Myocardium in Common Frog (Rana temporaria)
- Авторлар: Kibler N.1, Nuzhny V.1, Shmakov D.1
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Мекемелер:
- Institute of Physiology, Komi Research Center, Ural Division of Russian Academy of Science
- Шығарылым: Том 165, № 5 (2018)
- Беттер: 606-609
- Бөлім: Article
- URL: https://journals.rcsi.science/0007-4888/article/view/240592
- DOI: https://doi.org/10.1007/s10517-018-4223-6
- ID: 240592
Дәйексөз келтіру
Аннотация
The contractile function of the heart was studied in adult frogs Rana temporaria under the influence of a toxic dose of isoprenaline under conditions of natural sinoatrial rhythm and during heart pacing. The dynamics of ventricular pressure was recorded with a Prucka MacLab 2000 instrument via a catheter introduced into the ventricle through the ventricular wall. Reduced (p<0.05) parameters of the pump function (HR, maximum ventricular systolic pressure, isovolumic indices dP/dtmax and dP/dtmin) and lengthening of QRS complex and QT interval on ECG attested to impairment of contractile function and electrical processes after exposure to isoprenaline. Electrical stimulation of the right atrium improved myocardial contractility and ECG parameters after the administration of isoprenaline.
Авторлар туралы
N. Kibler
Institute of Physiology, Komi Research Center, Ural Division of Russian Academy of Science
Хат алмасуға жауапты Автор.
Email: natanadya@mail.ru
Ресей, Syktyvkar, Komi Republic
V. Nuzhny
Institute of Physiology, Komi Research Center, Ural Division of Russian Academy of Science
Email: natanadya@mail.ru
Ресей, Syktyvkar, Komi Republic
D. Shmakov
Institute of Physiology, Komi Research Center, Ural Division of Russian Academy of Science
Email: natanadya@mail.ru
Ресей, Syktyvkar, Komi Republic