Document Detail


Effect of captopril on blood pressure, renal function, the electrolyte balance and the renin-angiotensin system in Bartter's syndrome.
MedLine Citation:
PMID:  6341865     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
3 patients with Bartter's syndrome were studied under metabolic ward conditions before and during administration of captopril 25 mg t.i.d. The drug induced an immediate and sustained reduction of blood pressure (by 14 and 18% after 1 h and 3 days, respectively) with no change in heart rate. During treatment renal plasma flow increased by 29%, but the glomerular filtration rate was unchanged. Renal vascular resistance decreased by 41%. There was an increase in urinary sodium excretion with a corresponding reduction of body weight. The potassium balance was not affected. The concentration of angiotensin II became normal but the plasma renin concentration rose tenfold. Plasma renin substrate, initially rather low, was further reduced. The blood pressure responsiveness to angiotensin II increased without being completely normalized. An abnormal production of vasodilating prostaglandins is thought to be an important feature of Bartter's syndrome. Our findings, notably the marked renal vasodilatation, may reflect the effect of these prostaglandins when unopposed by an increased angiotensin II production.
Authors:
M Aurell; A Rudin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Nephron     Volume:  33     ISSN:  0028-2766     ISO Abbreviation:  Nephron     Publication Date:  1983  
Date Detail:
Created Date:  1983-06-23     Completed Date:  1983-06-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0331777     Medline TA:  Nephron     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  274-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Bartter Syndrome / drug therapy*,  metabolism,  physiopathology
Blood Pressure*
Body Weight
Captopril / therapeutic use*
Female
Humans
Hyperaldosteronism / drug therapy*
Kidney* / physiopathology
Male
Potassium / metabolism
Proline / analogs & derivatives*
Renin-Angiotensin System*
Sodium / metabolism
Chemical
Reg. No./Substance:
147-85-3/Proline; 62571-86-2/Captopril; 7440-09-7/Potassium; 7440-23-5/Sodium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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