The possibility of using echocardiography in small laboratory animals for acute pharmacological tests

Abstract

Resume. The purpose of this investigation is to study the adequacy of the echocardiography method in small laboratory animals for performing acute pharmacological tests. In experiments on white mongrel male rats, a nonselective ß-adrenoreceptor agonist isoproterenol (20 μg /kg, i.v.) reduces the end-systolic and end-diastolic dimensions and volumes of the heart left ventricle, measured by echocardiography, and increases the shortening and ejection fractions, i.e. has a positive inotropic effect. Cardioselective ß1-adrenoblocker metoprolol (1 mg / kg, i.v.), on the contrary, increases the left ventricle sizes and reduces the shortening and ejection fractions, i.e. has a negative inotropic effect. Thus, the method of echocardiography in small laboratory animals can be used to conduct acute pharmacological tests.

Keywords

• эхокардиография
• крысы
• острые фармакологические тесты
• изопротеренол
• метопролол
• echocardiography
• rats
• acute pharmacological tests
• isoproterenol
• metoprolol