Table 3.
Acute mobilization of endothelial cellular populations after a symptom-limited cardiopulmonary exercise testing of different severity groups according to the median value of ventilation/carbon dioxide output slope
| Endothelial cellular populations |
Group 1 of n = 27, VE/VCO2 slope < 32.5 |
Group 2 of n = 22, VE/VCO2 slope ≥ 32.5 |
P value between groups | ||
| Before CPET | After CPET | Before CPET | After CPET | ||
| CD34+/CD45-/CD133+ | 62 (41-81) | 95 (81-118)e | 31 (18-66) | 70 (33-99)e | 0.711 |
| CD34+/CD45-/CD133+/VEGFR2 | 1 (1-3) | 5 (3-8)e | 2 (1-4) | 5 (3-8)e | 0.311 |
| CD34+/CD133+/VEGFR2 | 10 (7-16) | 13 (10-18) | 12 (8-18) | 16 (9-29)b | 0.134 |
| CD34+/CD45-/CD133- | 222 (147-287) | 419 (267-576)e | 198 (152-376) | 382 (249-794)e | 0.540 |
| CD34+/CD45-/CD133-/VEGFR2 | 1 (1-2) | 3 (2-5)e | 1 (1-2) | 4 (3-6)e | 0.464 |
Differences within each severity group.
b
P < 0.01.
e
P < 0.001. CPET: Cardiopulmonary exercise testing.