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      Phenylacetylglutamine and Hippuric Acid in Uremic and Healthy Subjects

      a,b , b , a

      Nephron

      S. Karger AG

      Hippuric acid, Phenylacetylglutamine, Uremia

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          Abstract

          Phenylacetyglutamine (PAG) and hippuric acid (HA) were determined in protein-free filtrates of plasma and urine from patients with chronic renal failure and healthy subjects, using reverse phase high performance liquid chromatography. Plasma accumulation of the metabolites was detected when the creatinine clearance was below 15 ml/min. Protein-binding studies showed that PAG was not bound to plasma proteins but that HA was partly bound. Concentrations of PAG and free HA in plasma did not correlate with values of serum urea or creatinine. Hemodialysis decreased the plasma concentration of PAG and free HA to about the same extent as that of urea and creatinine. The average renal clearances of PAG and HA were about 1.4 and 5 times higher, respectively, than the creatinine clearance. The daily excretion rates of PAG, HA, urea, and creatinine were similar in non-dialysis patients with a creatinine clearance higher than 15 ml/min and in healthy subjects, whereas patients with a creatinine clearance below 15 ml/min had lower excretion rates of urea, creatinine, and HA. However, the average excretion rate of PAG was in the same range in uremic and healthy subjects. The excretion rate of HA, but not of PAG, correlated with that of urea and creatinine.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1990
          1990
          10 December 2008
          : 55
          : 3
          : 265-271
          Affiliations
          aDepartment of Renal Medicine, Karolinska Institutet, Huddinge University Hospital, and bDepartment of Chemistry I, Karolinska Institutet, Stockholm, Sweden
          Article
          185973 Nephron 1990;55:265–271
          10.1159/000185973
          2370926
          © 1990 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          Page count
          Pages: 7
          Categories
          Original Paper

          Cardiovascular Medicine, Nephrology

          Uremia, Hippuric acid, Phenylacetylglutamine

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