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. 1975 Aug;250(1):23–37. doi: 10.1113/jphysiol.1975.sp011041

The mechanism of acute renal ischaemia caused by adrenalectomy in the rat.

W S Peart, A C Pessina
PMCID: PMC1348337  PMID: 1177121

Abstract

1. The acute reduction of renal blood flow following adrenalectomy in the rat, which had previously been shown to be associated with sequestration of blood volume in the splanchnic area, was further investigated. An attempt was made to define the role of the renal sympathetic nerves in causing the blood flow change. 2. The systemic and renal intra-arterial administration of phenoxybenzamine, isoprenaline and propranolol and denervation of the renal pedicle failed to re-establish normal renal function. 3. Infusion of P113 (sarcosyl1 alanine8), an angiotensin blocker, failed to improve renal function. 4. In contrast, volume replacement with high-molecular weight PVP caused a prompt increase of RPF and GFR without altering arterial pressure and central venous pressure. 5. Angiographic studies demonstrated that the calibre of the aorta of adrenalectomized rats was significantly smaller than that of the sham operated and increased after the administration of this plasma volume expander. 6. It was concluded that after adrenalectomy the major arteries readjusted their calibre to the reduced volume of blood in the arterial tree with maintenance of a constant pressure/volume relationship. Their contracted state in the case of the kidney then led to flow reduction.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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