Effect of endothelin-3 on blood pressure in conscious spontaneously hypertensive [SHR] and DOCA-salt hypertensive rats. 1994

A Januszewicz, and S Loń, and M Lapiński, and A Styś
Department of Hypertension and Angiology, Warsaw Academy of Medicine, Poland.

The aim of the study was to investigate blood pressure responses and changes in heart rate after bolus administration of endothelin-3 [ET-3] in conscious, freely moving SHR and WKY rats and DOCA-salt hypertensive and normotensive Wistar rats. The effect of ET-3 on blood pressure and heart rats was investigated for four doses equal to 250 ng, 500 ng, 1000 ng and 2000 ng of ET-3. Our study shows that in experimental models of hypertension changes in blood pressure were predominantly characterized by the pronounced hypotensive phase with no significant raises in blood pressure. In normotensive animals cardiovascular responses to ET-3 were biphasic, with initial depressor phase followed by long-lasting, significant pressor effect.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D008297 Male Males
D011918 Rats, Inbred SHR A strain of Rattus norvegicus with elevated blood pressure used as a model for studying hypertension and stroke. Rats, Spontaneously Hypertensive,Rats, SHR,Inbred SHR Rat,Inbred SHR Rats,Rat, Inbred SHR,Rat, SHR,Rat, Spontaneously Hypertensive,SHR Rat,SHR Rat, Inbred,SHR Rats,SHR Rats, Inbred,Spontaneously Hypertensive Rat,Spontaneously Hypertensive Rats
D011921 Rats, Inbred WKY A strain of Rattus norvegicus used as a normotensive control for the spontaneous hypertensive rats (SHR). Rats, Wistar Kyoto,Wistar Kyoto Rat,Rats, WKY,Inbred WKY Rat,Inbred WKY Rats,Kyoto Rat, Wistar,Rat, Inbred WKY,Rat, WKY,Rat, Wistar Kyoto,WKY Rat,WKY Rat, Inbred,WKY Rats,WKY Rats, Inbred,Wistar Kyoto Rats
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D003900 Desoxycorticosterone A steroid metabolite that is the 11-deoxy derivative of CORTICOSTERONE and the 21-hydroxy derivative of PROGESTERONE 21-Hydroxyprogesterone,Cortexone,Deoxycorticosterone,Desoxycortone,11-Decorticosterone,21-Hydroxy-4-pregnene-3,20-dione,11 Decorticosterone,21 Hydroxy 4 pregnene 3,20 dione,21 Hydroxyprogesterone
D006339 Heart Rate The number of times the HEART VENTRICLES contract per unit of time, usually per minute. Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D016232 Endothelins 21-Amino-acid peptides produced by vascular endothelial cells and functioning as potent vasoconstrictors. The endothelin family consists of three members, ENDOTHELIN-1; ENDOTHELIN-2; and ENDOTHELIN-3. All three peptides contain 21 amino acids, but vary in amino acid composition. The three peptides produce vasoconstrictor and pressor responses in various parts of the body. However, the quantitative profiles of the pharmacological activities are considerably different among the three isopeptides. Endothelium-Derived Vasoconstrictor Factors,Endothelin,Vasoconstrictor Factors, Endothelium-Derived

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