Determination of platelet number

GN Gyrid Nygaard
LH Lars Herfindal
KA Kathrine S. Asrud
RB Ronja Bjørnstad
RK Reidun K. Kopperud
EO Eystein Oveland
FB Frode S. Berven
LM Lene Myhren
EH Erling A. Hoivik
TL Turid Helen Felli Lunde
MB Marit Bakke
SD Stein O. Døskeland
FS Frode Selheim
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Blood (10 μl) from the facial vein of live mice was drawn into ACD coated syringes and then fixed in 0.2% PFA. The fixed whole blood was incubated over night (O/N) with CD41 antibody before platelets were identified by both CD41 positivity and forward- and side- scatter by flow cytometry (FACSCalibur). The platelet populations were gated and data collected for 1 minute. The flow rate of the FACSCalibur combined with the dilution factor of the whole blood in fixative was used to calculate the number of platelets/ml.

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