Table 4.
Acute mobilization of endothelial cellular populations after a symptom-limited cardiopulmonary exercise testing of two different severity groups according to reduced or mid-ranged ejection fraction
| Endothelial cellular populations |
Group 1 of n = 37, EF < 40% |
Group 2 of n = 12, EF ≥ 40% |
P value between groups | ||
| Before CPET | After CPET | Before CPET | After CPET | ||
| CD34+/CD45-/CD133+ | 42 (22-75) | 90 (37-106)e | 63 (40-76) | 90 (65-103)b | 0.888 |
| CD34+/CD45-/CD133+/VEGFR2 | 2 (1-3) | 5 (3-8)e | 2 (1-4) | 8(4-8)b | 0.507 |
| CD34+/CD133+/VEGFR2 | 11 (7-17) | 14 (10-23)b | 15 (9-20) | 13 (9-22) | 0.473 |
| CD34+/CD45-/CD133- | 200 (152-279) | 427 (260-626)e | 227 (135-372) | 336 (214-624)b | 0.702 |
| CD34+/CD45-/CD133-/VEGFR2 | 1 (1-2) | 3 (2-6)e | 1 (1-2) | 3 (2-5)b | 0.828 |
Differences within each severity group.
b
P < 0.01.
e
P < 0.001. CPET: Cardiopulmonary exercise testing; EF: Ejection fraction.