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|Titolo:||Investigation of the endogenous Na+-pump inhibitor in essential hypertension and blood volume expansion|
|Autori interni:||DELVA, Pietro|
|Data di pubblicazione:||1984|
|Rivista:||JOURNAL OF HYPERTENSION SUPPLEMENT|
|Abstract:||The digitalis-like activities of plasma extracts from 108 patients and normal subjects were measured by their ability to compete with ouabain for binding to the digitalis sites of the Na+-pump. High levels were found in 18 of 54 untreated patients with moderate hypertension, 10 of 14 patients with end-stage renal failure and six patients with active acromegaly. These levels returned to control values after dialysis in the patients with renal insufficiency and high levels of the inhibitor, and after successful surgery and cobalt therapy in seven acromegalic patients. An increase in circulating Na+, K+-ATPase inhibitor was also found in rats after chronic sodium loading. These results indicate that levels of the circulating compound with digitalis-like properties do not result from high blood pressure but, rather, are related to blood volume and Na+ balance.|
|Appare nelle tipologie:||01.01 Articolo in Rivista|
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