ENDOGENOUS ANGIOTENSIN STIMULATION OF VASOPRESSIN (AVP) IN THE NEWBORN LAMB
نویسندگان
چکیده
منابع مشابه
Ontogeny of blood pressure and the renin-angiotensin-aldosterone system. Sequential studies in the newborn lamb.
To test the hypothesis that the rise in arterial pressure occurring with maturation is due to an increase in the vascular responsiveness to angiotensin II, sequential cumulative doses of angiotensin II were infused intravenously into chronically catheterized newborn lambs maintained on a constant, weight-adjusted sodium intake from birth to 8 weeks of age. Basal mean arterial pressure correlate...
متن کاملOntogeny of Blood Pressure and the Renin - Angiotensin - Aldosterone System Sequential Studies in the Newborn Lamb
To test the hypothesis that the rise in arterial pressure occurring with maturation is due to an increase in the vascular responsiveness to angiotensin II, sequential cumulative doses of angiotenmn II were infused intravenously into chronically catheterized newborn lambs maintained on a constant, weight-adjusted sodium intake from birth to 8 weeks of age. Basal mean arterial pressure correlated...
متن کاملImportance of plasma angiotensin concentrations in a comparative study of responses to angiotensin in the maturing newborn lamb.
Plasma angiotensin concentrations were measured in a longitudinal study of the vascular, renal, and adrenal responses to infusions of angiotensin II (AII) in the maturing newborn lamb. Basal plasma concentrations of angiotensin increased with age and correlated with the rising arterial pressure that occurred with maturation. However, age was a stronger determinant of arterial pressure than was ...
متن کاملSeptal arginine vasopressin (AVP) receptor regulation in rats depleted of septal AVP following long-term castration.
Arginine vasopressin (AVP) causes severe motor disturbances, including barrel rotations and myotonic/myoclonic convulsions, following repeated injections into either a lateral cerebral ventricle or the ventral septal area (VSA) of the rat brain. Because the AVP content of the rat septal area has been shown to be virtually eliminated following long-term castration, and because removal of a recep...
متن کاملDecreased vascular and increased adrenal and renal sensitivity to angiotensin II in the newborn lamb.
The effects of two doses of angiotensin II (0.025 micrograms/kg per min and 0.25 micrograms/kg per min) on plasma renin activity (PRA), aldosterone concentration, creatinine clearance, and sodium and potassium excretion were studied in two groups of 2- to 3-week-old lambs. The 0.025 micrograms/kg per min dose of angiotensin II also was studied in six adult ewes. In response to the angiotensin I...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1977
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-197704000-00374