Objective: Numerous studies have provided evidence for a direct functional link between the renin-angiotensin-aldosterone system and the fibrinolytic system. Angiotensin II has been suggested to mediate this interrelationship because this peptide was shown to stimulate plasminogen activator inhibitor-1 (PAI-1) in experimental settings. However, evidence from studies in man regarding effects of Angiotensin II on fibrinolytic function remains controversial.
View Article and Find Full Text PDFDtsch Med Wochenschr
November 2003
Background And Objective: Inflammatory reactions mediated by cytokines play a central role in the development of atherosclerotic vascular changes. Numerous experimental studies have suggested a connection between the renin-angiotensin-aldosterone system and cytokine liberation from endothelium. This study investigated the effect of exogenous angiotensin II on cytokine liberation in healthy subjects.
View Article and Find Full Text PDFBackground: Aldosterone stimulation by angiotensin II may not exclusively be mediated by the angiotensin II type 1 (AT(1)) receptor. We have, therefore, investigated the vascular and adrenal response to angiotensin II infusion without and with pretreatment with the AT(1) receptor antagonist valsartan (160 mg).
Methods: In nine healthy human volunteers, angiotensin II was administered intravenously at doses of 1, 3, and 10 ng/kg/min, each over 45 min.
History And Admission Findings: A 30-year-old woman presented with a cardiac arrest, which spontaneously converted into a regular sinus rhythm. The patient had no prior history of cardiovascular diseases. On admission, the cardiovascular clinical examination of this young female was regular.
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