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Title: Transplantation studies of the role of the kidney in long-term blood pressure reduction following brief ACE inhibitor treatment in young spontaneously hypertensive rats.
Austin Authors: Harrap, Stephen B;Wang, B Z;MacLellan, D G
Affiliation: Department of Medicine, Austin Hospital, Heidelberg, Victoria, Australia
Issue Date: 1-Feb-1994
Publication information: Clinical and Experimental Pharmacology & Physiology; 21(2): 129-31
Abstract: 1. Brief treatment with angiotensin-converting enzyme (ACE) inhibitors in young spontaneously hypertensive rats (SHR) causes a persistent reduction in blood pressure associated with a relatively selective reduction in renal vascular resistance. 2. To study the possible role of the kidney in this long-term hypotensive effect, we transplanted kidneys from untreated SHR into SHR that had been treated with perindopril (3 mg/kg per day) between 6 and 10 weeks of age and also transplanted kidneys from perindopril-pretreated SHR into untreated SHR. After transplantation, the remaining native kidney was removed so that only donor kidneys remained. 3. Untreated SHR that received kidneys from perindopril-pretreated SHR showed an initial fall in blood pressure followed by a rapid increase in pressure, weight loss and early death. 4. The transplantation of kidneys from control SHR into perindopril-pretreated SHR resulted in a rise in blood pressure that obviated the long-term reduction seen normally in these animals. 5. Kidneys from perindopril-pretreated SHR may be susceptible to the high blood pressure in untreated SHR. 6. The blood pressure increase in perindopril-pretreated SHR that accompanies substitution of the native kidneys by kidneys from untreated SHR further supports the hypothesis that the kidney is responsible for the long-term pressure effects following ACE inhibition in young SHR.
Gov't Doc #: 8039265
Type: Journal Article
Subjects: Aging.physiology
Angiotensin-Converting Enzyme Inhibitors.pharmacology
Blood Pressure.drug effects
Kidney Transplantation.physiology
Rats, Inbred SHR
Renal Circulation.drug effects
Vascular Resistance.drug effects
Appears in Collections:Journal articles

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