Journal article
Interaction of somatic and cardiopulmonary receptors in control of renal circulation
The American journal of physiology, Vol.237(5), pp.H560-565
11/1979
DOI: 10.1152/ajpheart.1979.237.5.H560
PMID: 495761
Abstract
The purpose of this study was to determine if there is an important interaction between somatic and cardipulmonary receptors in the control of vasomotor outflow to the kidney. This interaction was examined by determining the renal vasoconstrictor responses to afferent electrical stimulation (30 V, 1 ms, 20--40 Hz) of the sectioned sciatic nerve in 8 chloralose-anesthetized dogs with sinoaortic deafferentation. During isovolemia, sciatic stimulation resulted in significant increases in arterial pressure and heart rate, and in renal vasoconstriction. Volume expansion significantly attenuated and vagotomy significantly augmented the renal vasoconstrictor responses to sciatic stimulation. These interventions did not significantly influence the arterial pressure or heart rate responses to sciatic stimulation. In 4 dogs with aortic nerves sectioned and carotid sinuses isolated and perfused at constant pressure (135 mmHg), the renal vasoconstrictor responses to stimulation were attenuated by volume expansion and augmented by vagotomy. These data show that in the absence of the arterial baroreceptors or with intermediate levels of carotid baroreceptor activation, volume expansion and, thus, augementation of discharge of cardiopulmonary receptors (vagal afferents) markedly attenuated the renal vasoconstrictor responses to somatic afferent stimulation.
Details
- Title: Subtitle
- Interaction of somatic and cardiopulmonary receptors in control of renal circulation
- Creators
- Marc D ThamesFrancois M Abboud
- Resource Type
- Journal article
- Publication Details
- The American journal of physiology, Vol.237(5), pp.H560-565
- DOI
- 10.1152/ajpheart.1979.237.5.H560
- PMID
- 495761
- NLM abbreviation
- Am J Physiol
- ISSN
- 0002-9513
- eISSN
- 2163-5773
- Publisher
- United States
- Language
- English
- Date published
- 11/1979
- Academic Unit
- Molecular Physiology and Biophysics; Cardiovascular Medicine; Fraternal Order of Eagles Diabetes Research Center; Internal Medicine
- Record Identifier
- 9984025474102771
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