1989
DOI: 10.1111/j.1440-1681.1989.tb01539.x
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Evidence That Increases in Circulating Catecholamines of Adrenal Origin Are Not Involved in Pressor Response to Bilateral Carotid Occlusion in Anaesthetized Dogs

Abstract: 1. We studied whether or not circulating catecholamines of adrenal origin play a major role in cardiovascular responses evoked by bilateral carotid artery occlusion (3 min) in anaesthetized dogs. 2. In the control group, the following parameters increased significantly (P less than 0.05) during bilateral carotid occlusion: aortic systolic pressure, heart rate, net adrenal catecholamine output, net renal noradrenaline output, and plasma catecholamine concentrations in aortic blood. Similar responses were obtain… Show more

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Cited by 3 publications
(2 citation statements)
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“…In support of this hypothesis, Bereiter [24] found adrenal blood flow to be correlated with MAP after partial cervical spinal cord transection in cats, and Jasper et al [ 17] reported that blood flow to the adrenal capsule, cortex and medulla was correlated with MAP after hypo tensive hemorrhage in anesthetized dogs. Other studies, however, found no relationship between total adrenal blood flow and changes in MAP produced by insulin [25], endotoxin shock [26], carotid artery occlusion [27], hypo xia [28], splanchnic stimulation [27,29,30], or both normotensive and hypotensive hemorrhage [31]. Considered as a whole, our data support a correlation between changes in MAP and adrenal blood flow.…”
Section: Adrenal Blood Flow and Ca Secretionsupporting
confidence: 75%
“…In support of this hypothesis, Bereiter [24] found adrenal blood flow to be correlated with MAP after partial cervical spinal cord transection in cats, and Jasper et al [ 17] reported that blood flow to the adrenal capsule, cortex and medulla was correlated with MAP after hypo tensive hemorrhage in anesthetized dogs. Other studies, however, found no relationship between total adrenal blood flow and changes in MAP produced by insulin [25], endotoxin shock [26], carotid artery occlusion [27], hypo xia [28], splanchnic stimulation [27,29,30], or both normotensive and hypotensive hemorrhage [31]. Considered as a whole, our data support a correlation between changes in MAP and adrenal blood flow.…”
Section: Adrenal Blood Flow and Ca Secretionsupporting
confidence: 75%
“…An increased release of vasopressin as a direct response to 2VO has been repeatedly demonstrated (Clark and Silva, 1967;Dreifuss et al, 1976), but the chronic hormonal changes have not been investigated. Likewise, the plasma concentrations of catecholamines and angiotensin, assessed in dogs, proved to be elevated during the acute phase of 2VO (Brassard and Yamaguchi, 1989;Hodge et al, 1966), but less is known about the chronic hormonal fluctuations in permanent 2VO. Finally, even though acute changes in the plasma concentration of corticosterone have not been recorded, our experiments demonstrated that 2VO persisting for 3 months caused a significant increase in the circulating corticosterone level in a stressful situation (Farkas et al, 2002b).…”
Section: Plasma Hormone Concentrationmentioning
confidence: 99%