Go to JCI Insight
  • About
  • Editors
  • Consulting Editors
  • For authors
  • Publication ethics
  • Publication alerts by email
  • Advertising
  • Job board
  • Contact
  • Clinical Research and Public Health
  • Current issue
  • Past issues
  • By specialty
    • COVID-19
    • Cardiology
    • Gastroenterology
    • Immunology
    • Metabolism
    • Nephrology
    • Neuroscience
    • Oncology
    • Pulmonology
    • Vascular biology
    • All ...
  • Videos
    • Conversations with Giants in Medicine
    • Video Abstracts
  • Reviews
    • View all reviews ...
    • Complement Biology and Therapeutics (May 2025)
    • Evolving insights into MASLD and MASH pathogenesis and treatment (Apr 2025)
    • Microbiome in Health and Disease (Feb 2025)
    • Substance Use Disorders (Oct 2024)
    • Clonal Hematopoiesis (Oct 2024)
    • Sex Differences in Medicine (Sep 2024)
    • Vascular Malformations (Apr 2024)
    • View all review series ...
  • Viewpoint
  • Collections
    • In-Press Preview
    • Clinical Research and Public Health
    • Research Letters
    • Letters to the Editor
    • Editorials
    • Commentaries
    • Editor's notes
    • Reviews
    • Viewpoints
    • 100th anniversary
    • Top read articles

  • Current issue
  • Past issues
  • Specialties
  • Reviews
  • Review series
  • Conversations with Giants in Medicine
  • Video Abstracts
  • In-Press Preview
  • Clinical Research and Public Health
  • Research Letters
  • Letters to the Editor
  • Editorials
  • Commentaries
  • Editor's notes
  • Reviews
  • Viewpoints
  • 100th anniversary
  • Top read articles
  • About
  • Editors
  • Consulting Editors
  • For authors
  • Publication ethics
  • Publication alerts by email
  • Advertising
  • Job board
  • Contact
Top
  • View PDF
  • Download citation information
  • Send a comment
  • Terms of use
  • Standard abbreviations
  • Need help? Email the journal
  • Top
  • Abstract
  • Version history
  • Article usage
  • Citations to this article (56)

Advertisement

Research Article Free access | 10.1172/JCI105741

Megakaryocyte quantitation

Lawrence A. Harker

Department of Medicine, University of Washington School of Medicine, Seattle, Washington

Find articles by Harker, L. in: JCI | PubMed | Google Scholar

Published March 1, 1968 - More info

Published in Volume 47, Issue 3 on March 1, 1968
J Clin Invest. 1968;47(3):452–457. https://doi.org/10.1172/JCI105741.
© 1968 The American Society for Clinical Investigation
Published March 1, 1968 - Version history
View PDF
Abstract

A method is described for the quantitation of megakaryocytes. In this technic bone marrow sections obtained at the time of maximal marrow uptake of previously injected plasma bound 59Fe are counted for radioactivity as well as the number of megakaryocytes and nucleated red cells. We calculated the total megakaryocytes by relating the ratio of megakaryocyte: radioactivity with the total marrow 59Fe activity at the time of sampling. A multiple counting correction factor which is related to cell diameter and section thickness is required for quantitation of cell numbers from section material. The normal megakaryocyte number for the rat is 11.0 × 106/kg, and 6.1 × 106/kg for man.

Images.

Browse pages

Click on an image below to see the page. View PDF of the complete article

icon of scanned page 452
page 452
icon of scanned page 453
page 453
icon of scanned page 454
page 454
icon of scanned page 455
page 455
icon of scanned page 456
page 456
icon of scanned page 457
page 457
Version history
  • Version 1 (March 1, 1968): No description

Article tools

  • View PDF
  • Download citation information
  • Send a comment
  • Terms of use
  • Standard abbreviations
  • Need help? Email the journal

Metrics

  • Article usage
  • Citations to this article (56)

Go to

  • Top
  • Abstract
  • Version history
Advertisement
Advertisement

Copyright © 2025 American Society for Clinical Investigation
ISSN: 0021-9738 (print), 1558-8238 (online)

Sign up for email alerts