Sequential renal hemodynamics in experimental benign and malignant hypertension.
To examine the sequential renal hemodynamic changes in experimental renovascular hypertension, the uninephrectomized dog was studied immediately after renal artery constriction, throughout chronic benign hypertension, and during malignant hypertension. Intrarenal resistance fell immediately after renal artery constriction, but rose above control within hours. Intrarenal infusion of teprotide resulted in vasodilatation during the first 3 days but failed to do so during the chronic phase of benign hypertension. During the transition from benign to malignant hypertension, angiotensin II-dependent renal vasoconstriction developed associated with natriuresis, plasma volume contraction and a vicious cycle of hyperreninemia and severe vascular damage.
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Related Subject Headings
- Renin
- Kidney
- Hypertension, Renovascular
- Hypertension, Renal
- Hypertension, Malignant
- Hemodynamics
- Dogs
- Cardiovascular System & Hematology
- Animals
- Angiotensin II
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Renin
- Kidney
- Hypertension, Renovascular
- Hypertension, Renal
- Hypertension, Malignant
- Hemodynamics
- Dogs
- Cardiovascular System & Hematology
- Animals
- Angiotensin II