A suspension of fine carbon particles was added to cord blood of healthy premature and full-term infants, and the mixture was incubated for 3 h, after which the uptake of carbon particles by blood leukocytes was examined. The results were compared with those from the blood of adults. A gradient of phagocytic activity was observed. The most active uptake of carbon was by the leukocytes of premature infants, the least active by leukocytes of adults. In cord blood and blood of adults, phagocytic activity was evident in both monocytes and neutrophils..In addition, two types of what have been termed ‘lymphocytoid’ phagocytes were seen. These resemble lymphocytes in their morphology. One type possesses basophilic cytoplasm, and has been found only in premature cord blood. The presence of lymphocytoid phagocytes affords a further indication of the differences between the circulating lymphocyte population in the prenatal and perinatal period as compared with the adult.

Keywords:
Monocytes, Neutrophils, Lymphocytoid cells, Phagocytes, Cord blood
This content is only available via PDF.
© 1975 S. Karger AG, Basel
1975
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.