Table 1 In vitro metabolism of canine platelets stored for 5 days (n = 22)

Platelet count (× 10¹⁰/unit)

7.48 ± 2.39

7.69 ± 2.39

7.42 ± 2.79

MPV (fL)

11.5 ± 1.2

12.5 ± 4.5

13.2 ± 6.6*

PDW (fL)

13.0 ± 7.9

14.0 ± 5.5

15.1 ± 2.0*

pH (22 °C)

7.0 ± 0.4

6.4 ± 0.5*

5.9 ± 0.7**

pO₂ (mmHg)

107.6 ± 32.2

115.9 ± 31.0

140.1 ± 21.8*

pCO₂ (mmHg)

43.7 ± 3.1

25.5 ± 2.5**

9.5 ± 2.5**

Glucose (mmol/L)

25.3 ± 2.3

18.8 ± 4.4**

13.7 ± 5.6**

HCO₃ (mmol/L)

11.9 ± 1.7

3.5 ± 2.8**

0.6 ± 1.2**

Lactate (mmol/L)

0.7 ± 0.3

1.8 ± 0.8*

2.8 ± 1.2**

ATP (μmol/10¹¹platelets)

1.7 ± 0.6

1.2 ± 0.3*

1.0 ± 0.3**

CD61 (%)

91.5 ± 4.8

93.4 ± 4.3

91.8 ± 5.7

CD62P (%)

2.7 ± 1.5

2.6 ± 3.6

2.6 ± 2.2

LDH (U/L)

237.9 ± 159.1

404.7 ± 98.5

630.0 ± 162.1

Annexin V (%)

2.4 ± 2.5

1.6 ± 1.1

3.5 ± 4.2

Caspase (%)

10.2 ± 11.4

6.7 ± 5.9

12.0 ± 13.9

∆Ψm JC-1 (%)

91.8 ± 3.9

84.2 ± 20.5

55.4 ± 37.3**