J Hematol

Journal of Hematology, ISSN 1927-1212 print, 1927-1220 online, Open Access

Article copyright, the authors; Journal compilation copyright, J Hematol and Elmer Press Inc

Journal website http://www.thejh.org

Original Article

Volume 1, Number 1, February 2012, pages 15-19

Platelet Activation in Stored Platelet Concentrates: Comparison of Two Methods Preparation

Tables

**Table 1.** Cell Counts and pH in Buffy Coat-Derived Platelet Concentrate (BC) and Platelet Rich Plasma-Platelet Concentrates (PRP-PC)
	PRP-PC				BC
Values are mean ± standard deviation; n = 30. ▲ Significant difference between BC and PRP-PC.
Days	0	1	3	5	0	1	3	5
Platelet/unit ×10¹⁰	5.8 ± 1.1	5.7 ± 2.1	5.6 ± 2.1	5.4 ± 3.4	5.9 ± 1	5.9 ± 1.2	5.6 ± 2	5.5 ± 3.4
WBC/unit ×10⁶	44 ± 0.65▲	45 ± 0.71▲	42 ± 0.78▲	42 ± 1▲	28 ± 0.5▲	22 ± 0.86▲	22 ± 0.7▲	21 ± 0.95▲
RBC/unit ×10⁸	27 ± 2.2	27 ± 2.1	25 ± 2.4	24 ± 2.3	26 ± 2.1	24 ± 1.8	24 ± 1.78	23 ± 2.8
pH	6.9 ± 0.12	7 ± 0.13	7.01 ± 0.29	7.02 ± 0.1	6.6 ± 0.12	6.7 ± 0.13	7 ± 0.2	7 ± 0.4

**Table 2.** Platelet Activation Markers are Stored in Buffy Coat-Derived Platelet Concentrate (BC) and Platelet Rich Plasma-Platelet Concentrates (PRP-PC)
	PRP-PC				BC
Values are mean ± standard deviation; n = 30. ▲ Significant difference between BC and PRP-PC.
Days	0	1	3	5	0	1	3	5
CD62P%	13.4 ± 9.7	31 ± 10.2	46 ± 14.7▲	52 ± 16▲	10.1 ± 9.1	27.3 ± 10.9	33.1 ± 11.2▲	40 ± 12▲
Annexin V%	3.31 ± 0.9	6.3 ± 3	13.3± 5.6▲	19 ± 6.4▲	2.31 ± 0.93	4.8 ± 1.6	8.8 ± 2.5▲	11 ± 4.5▲