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Cell Counting

Current Protocols in Cytometry, 1997
AbstractThis unit presents protocols for counting cells using either a hemacytometer or electronically using a Coulter counter. Cell counting with a hemacytometer permits effective discrimination of live from dead cells using trypan blue exclusion. In addition, the procedure is less subject to errors arising from cell clumping or size heterogeneity ...
M C, Phelan, G, Lawler
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Counting stem cells: methodological constraints

Nature Methods, 2012
The number of stem cells contributing to hematopoiesis has been a matter of debate. Many studies use retroviral tagging of stem cells to measure clonal contribution. Here we argue that methodological factors can impact such clonal analyses. Whereas early studies had low resolution, leading to underestimation, recent methods may result in an ...
Bystrykh, Leonid V   +4 more
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Platelet Count Is Positively Correlated with White Cell Count and Red Cell Count

Pathophysiology of Haemostasis and Thrombosis, 1987
Platelet count is positively correlated with the white cell count in healthy males aged 20–68 years (p < 0.002) and in healthy medical students of both sexes aged 18–22 years (p < 0.0001). Platelet count is also positively correlated with red cell count in healthy males (p < 0.02).
P C, Milner, S, Johl, J F, Martin
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White Blood Cell Count and Differential Count

Emergency Medicine Clinics of North America, 1986
Current methods for performing the white blood cell count and differential count along with recent technologic advances are discussed. Sources of error and variation in these tests are presented. The use of the white blood cell count and the differential count in a variety clinical situations is reviewed.
H A, Werman, C G, Brown
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Interrelationship between platelet count, red cell count, white cell count and weight in men

Clinical & Laboratory Haematology, 2008
In 83 healthy normotensive males aged 20-55 years the platelet count is positively correlated with the red cell count (r = 0.371; P = 0.0006), the white cell count (r = 0.358; P = 0.0009), and with weight (r = 0.252; P = 0.0269). The red cell count is also positively related with the white cell count (r = 0.242; P = 0.0278) and with weight (r = 0.326 ...
R W, Siebers   +3 more
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Cell Counts in Urine

Archives of Internal Medicine, 1959
Addis1,2established the fact 30 years ago, with use of a counting chamber, that both white and red cells normally occur in urine. He found top values of 2,000,000 white cells and 400,000 red cells in the 12-hour night urine specimens of 74 apparently healthy medical students.
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How T Cells Count

Science, 1996
The rules by which the T cells of the immune system are activated by foreign peptides have seemed inconsistent and counterintuitive. In this week's issue, Viola et al . ( p. 104 ) report that the T cells actually count how many T cell receptors are engaged.
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