Using a competitive protein-binding method plasma testosterone levels were measured simultaneously in peripheral and spermatic vein blood in 20 sub-fertile men with varicocele (mean value 1.02 ± SD 0.35 µg/100 ml plasma in spermatic and 0.42 ± SD 0.16 µg/100 ml plasma in peripheral vein blood). It was impossible to obtain control values in normal men without varicocele without sacrificing the spermatic vein, values reported by other authors cannot be compared directly because of considerable methodical differences. Nevertheless, impairment of spermatogenesis in varicocele because of a high, local testosterone concentration as a result of the hemodynamic disturbance seems unlikely, as the measured plasma testosterone levels are very low. Determination of these levels in eight adult bulls gave values in good accordance with results reported in the literature.

Keywords:
Peripheral plasma testosterone levels in young men, Plasma testosterone levels in the bull, Plasma testosterone assay by competitive protein binding
This content is only available via PDF.
© 1973 S. Karger AG, Basel
1973
Copyright / Drug Dosage / Disclaimer
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.
You do not currently have access to this content.