منابع مشابه
Extraction and measurement of circulating angiotensins I and II.
We describe a method for simultaneous extraction of angiotensins I and II from human blood. Blood was diluted with 10 volumes of isotonic saline containing ammonium ethylenediaminetetraacetate, and the angiotensin peptides were extracted by cation-exchange chromatography. The dilution effectively inhibits in vitro production of angiotensin I, conversion of angiotensin I to angiotensin II, and d...
متن کاملImmunohistochemical evidence that angiotensins I and II are formed by intracellular mechanism in juxtaglomerular cells.
The existence of angiotensin II (AII) immunoreactivity in juxtaglomerular (JG) cells of rat kidney, which has been demonstrated previously by immunohistochemical studies, can be explained either as the product of intracellular synthesis or by the internalization of receptor-bound AII originating in plasma. To resolve these two alternative mechanisms, attempts were made to identify AI in JG cell...
متن کاملRenal interstitial fluid concentrations of angiotensins I and II in anesthetized rats.
Previous studies have indicated that angiotensin II (Ang II) concentrations in renal interstitial fluid are much higher than plasma levels. In the present study, we performed experiments to explore renal interstitial fluid concentrations of Ang I and Ang II further and to determine whether these levels are altered by acute arterial infusion of an ACE inhibitor (enalaprilat) or by volume expansi...
متن کاملSpurious lung perfusion ventilation defect on planar ventilation-perfusion scan detected by SPECT imaging
Pulmonary embolism (PE) is a preventable cause of morbidity and mortality which needs prompt recognition. Ventilation-perfusion (V/Q) scan is a well-established diagnostic test for evaluation of suspected PE. We report a 32-year-old woman with history of rheumatologic disease and acute dyspnea, who was referred for V/Q scintigraphy. The planar images revealed multiple mismatched defects through...
متن کاملPerfusion Lung
Study objectives: Scintigraphic prediction of the residual pulmonary function following a lobectomy is not widely employed; its accuracy is poorly known. This study aims at determining the accuracy and the clinical value of the scintigraphic prediction of postlobectomy residual function. Patients and interventions: In this study, 41 patients with bronchial carcinoma underwent a perfusion lung s...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1971
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.28.5.559