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  • 1
    ISSN: 1432-1440
    Keywords: Blutdruck ; Angiotensin II ; Propranolol ; Spontan hypertensive Ratten ; Gehirn ; Blood pressure ; Angiotensin II ; Propranolol ; Spontaneously hypertensive rats ; Brain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The blood pressure responses following infusions of angiotensin II (ANG II) into the brain ventricles (i.v.t.) have been tested in spontaneously hypertensive (SH) rats and in normotensive Wistar Kyoto (WK) rats. The mean arterial blood pressure increases were significantly higher in SH rats than in WK rats. Propranolol treatment reduced blood pressure increases to i.v.t. ANG II in WK, but not in SH rats. The higher sensitivity to i.v.t. ANG II in SH rats supports a role of central ANG II in the maintenance of high blood pressure in SH rats.
    Notes: Zusammenfassung Angiotensin II (ANG II) wurde spontan hypertensiven (SH) Ratten und normotensiven Wistar Kyoto (WK) Ratten in den lateralen Hirnventrikel (i.v.t.) infundiert. Der mittlere arterielle Blutdruck stieg bei den SH Ratten signifikant höher an als bei den normotensiven WK Ratten. Propranolol-Vorbehandlung reduzierte die Blutdruckanstiege nach i.v.t. ANG II Infusionen bei WK Ratten, nicht aber bei SH Ratten. Die höhere ANG II Empfindlichkeit der SH Raten bestätigt frühere Ergebnisse, die darauf hinweisen, daß zentrales ANG III an der Aufrechterhaltung des hohen Blutdruckes von SH Ratten beteiligt sein kann.
    Type of Medium: Electronic Resource
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