Experimental Physiology
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Quarterly Journal of Experimental Physiology 21.4 pp 371-382
© The Physiological Society 1932
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STUDIES ON THE ARNETH COUNT.—XX. A STUDY OF THE BLOOD CELLS OF PSEUDEMYS ELEGANS WITH SPECIAL REFERENCE TO THE POLYMORPHONUCLEAR LEUCOCYTES

Harry A. Charipper 1 and Daniel Davis 1

1 Washington Square College, New York University

1. A polynuclear count cannot be made in Pseudemys elegans, since multilobed cells are absent.

2. By considering eosinophils with spherical granules as young cells and eosinophils with ellipsoidal or rod-like granules as older cells, a differential eosinophil count, comparable to the polynuclear count, can be made.

3. The eosinophil of Pseudemys elegans reacts to hæmatopoietic stimuli in much the same way as does the neutrophil of the mammal.

4. Injections of thyroxine and nucleic acid in Pseudemys elegans increase the total white cell population by stimulating the granulo-cytopoietic centres, causing an increase in the number of young eosinophils. This effect is analogous to a left-handed deflection in the polynuclear count of amphibians, birds, and mammals.

Submitted on January 13, 1932






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Copyright © 1932 by the The Physiological Society.