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      Reduction of Postischemic Reperfusion Injury by the Vasoactive Drug Buflomedil

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          Abstract

          The effect of buflomedil on postischemic reperfusion injury was studied in the dorsal skin fold chamber preparation of awake hamsters. Microvascular events were investigated in the striated skin muscle by means of intravital fluorescence microscopy prior to 4 h of pressure-induced ischemia and 30 min, 2 and 24 h after reperfusion. In untreated control animals, ischemia and reperfusion provoked marked leukocyte sticking and macromolecular leakage while functional capillary density was reduced. Treatment with buflomedil (3 mg/kg b.w. in 0.3 ml saline, administered as bolus of 0.1 ml 10 min prior to release of ischemia followed by i.v. infusion of 0.2 ml during the first 20 min of reperfusion) significantly reduced leukocyte sticking and macromolecular leakage, while functional capillary density was effectively preserved. No differences in macro- and microhemodynamic parameters were observed between buflomedil-treated and untreated animals. These findings support the concept that activated leukocytes are involved in the microvascular manifestation of reperfusion injury and indicate that leukocyte sticking and its sequelae can be efficiently prevented by treatment with buflomedil.

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          Author and article information

          Journal
          JVR
          J Vasc Res
          10.1159/issn.1018-1172
          Journal of Vascular Research
          S. Karger AG
          978-3-8055-5491-6
          978-3-318-01136-4
          1018-1172
          1423-0135
          1991
          1991
          23 September 2008
          : 28
          : Suppl 1
          : 8-14
          Affiliations
          Departments of aExperimental Surgery and bCardiac Surgery, University of Heidelberg, and cInstitute for Surgical Research, University of Munich, Klinikum Grosshadern, Munich, FRG
          Article
          158913 Blood Vessels 1991;28:8–14
          10.1159/000158913
          © 1991 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
          Microvascular Motricity and Haemorheology Effects of Buflomedil

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