Granulokinetics in normal dogs

Author:

Raab S. O.1,Athens J. W.1,Haab O. P.1,Boggs D. R.1,Ashenbrucker H.1,Cartwright G. E.1,Wintrobe M. M.1

Affiliation:

1. Department of Medicine, University of Utah College of Medicine, Salt Lake City, Utah

Abstract

Dog granulocytes were labeled in vitro with radioactive diisopropylfluorophosphate (DFP32) and then returned to the circulation of the donor. Granulocytes were separated from whole blood by utilizing hexadimethrine bromide as the sedimenting agent and saponin as a lysing agent. The labeled granulocytes disappeared from the circulation in an exponential fashion with a mean (±1 sd) half-time disappearance of 5.6 ± 0.95 hr. The size of the total blood granulocyte ( TBGP), circulating granulocyte ( CGP), and marginal granulocyte ( MGP) pools, and the granulocyte turnover rate ( GTR) were measured in 31 normal, unanesthetized dogs. The mean values ± 1 sd, expressed as number of cells x107/kg body wt., were as follows: TBGP, 102 ± 34.8; CGP, 54 ± 20.7; MGP, 48 ± 23.4; and GTR, 305 ± 111.5 cells/kg day. The values observed in anesthetized and in unanesthetized, splenectomized dogs were not significantly different from the above values.

Publisher

American Physiological Society

Subject

Physiology (medical)

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