Aging in the Circadian Time Structure of Blood Cell Titers in the Rat

  • Harvey V. SamisJr.
Part of the Advances in experimental medicine and biology book series (AEMB, volume 108)


Leukocyte counts vary over the 24-hour day. Studies of the polymorphonuclear cell, lymphocytes, eosinophilia and monocyte levels in humans have revealed a significant rhythm over the 24-hour cycle.


Leukocyte Count Time Structure Significant Rhythm Blood Leukocyte Count Cosiner Analysis 
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  1. Halberg, F., Tong, Y.L. and Johnson, E.A. Circadian systems phase — An aspect of temporal morphology; procedures and illustrative examples. In: The Cellular Aspects of Biorhythms, H. von Mayersbach, ed. Springer-Verlag, Berlin, pp 20–48, 1967.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1978

Authors and Affiliations

  • Harvey V. SamisJr.
    • 1
  1. 1.Medical Research Service Veterans Administration CenterBay PinesUSA

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