Table 2.

Effects of plateletpheresis on venous blood samples collected before and after plateletpheresis and on day-0 platelet product (n= 4)

	Pigs		Platelet bag day 0
	Prepheresis	Postpheresis
Total volume (mL)	4919 ± 257	4845 ± 238	331 ± 102
Platelet count (×103/µL)	341 ± 67	208 ± 57a	1259 ± 280a,b
No. of platelets (×1011) per pig or bag	16.9 ± 4.0	10.1 ± 3.1	4.3 ± 1.9a,b
Platelet volume (fl)	9.1 ± 1.4	7.6 ± 0.7	9.6 ± 1.3
Hematocrit (%)	30 ± 1	28 ± 2	1.6 ± 0.4a,b
Hemoglobin (g/dL)	10.1 ± 0.4	9.3 ± 0.7	0.04 ± 0.07a,b
WBC count (×103/µL)	11.8 ± 2.9	10.2 ± 1.2	38.0 ± 11.4a,b
No. of WBC (×1011) per pig or bag	0.6 ± 0.2	0.5 ± 0.08	0.1 ± 0.02a
Neutrophil count (×103/µL)	2.4 ± 0.8	4.4 ± 1.9	0.02 ± 0.03a,b
No. of neutrophils (×1011) per pig or bag	0.1 ± 0.04	0.2 ± 0.09	0.00005 ± 0.00008a,b
Neutrophil percentage (%)	21.4 ± 8.6	45.5 ± 23.7	0.04 ± 0.07b
Lymphocyte count (×103/µL)	8.5 ± 5.3	5.3 ± 3.0	37.4 ± 11a,b
No. of lymphocytes (×1011/µL) per pig or bag	0.4 ± 0.1	0.3 ± 0.2	0.1 ± 0.02a,b
Lymphocyte percentage (%)	71.1 ± 8.7	50.6 ± 23.7	98.5 ± 0.6a,b
Monocyte count (×103/µL)	0.4 ± 0.2	0.2 ± 0.05	0.4 ± 0.2
No. of monocytes (×1011/µL) per pig or bag	0.02 ± 0.008	0.009 ± 0.002	0.001 ± 0.0003a
Monocyte percentage (%)	3.1 ± 0.5	1.8 ± 0.3	2.3 ± 2.8
Eosinophil count (×103/µL)	0.3 ± 0.1	0.08 ± 0.06a	0 ± 0a
No. of eosinophils (×1011) per pig or bag	0.02 ± 0.005	0.004 ± 0.003a	0 ± 0a
Eosinophil percentage (%)	2.8 ± 0.7	0.8 ± 0.5a	0 ± 0a
Basophil count (×103/µL)	0.2 ± 0.07	0.1 ± 0.04	0.2 ± 0.2
No. of basophils (×1011) per pig or bag	0.010 ± 0.003	0.006 ± 0.002	0.0006 ± 0.0004a,b
Eosinophil percentage (%)	1.6 ± 0.2	1.3 ± 0.4	0.6 ± 0.3a
Inorganic calcium (mmol/L)	1.3 ± 0.01	1.0 ± 0.08a	0
Lactate (mmol/L)	1.3 ± 0.6	0.8 ± 0.3	1.5 ± 0.15

Data are presented as mean ± 1 SD.

^aValue is significantly (P < 0.05) different from that before plateletpheresis.

^bValue is significantly (P < 0.05) different from that after plateletpheresis.