Fig. 1

Number of CD45⁺CD34⁺CD133⁺ and CD45⁺ cells in COPD. a Number of circulating CD34⁺CD133⁺CD45⁺ progenitor cells in non-COPD and COPD patients expressed as percent of lymphomonocytes; (b) Quantification of CD45⁺ infiltrates in the intima of the pulmonary arteries expressed as a number per mm of endothelium in non-COPD and COPD subjects, * P < 0.05, compared with non-COPD subjects, Mann Whitney test. Values expressed as mean ± SD; (c) Relationship between the number of CD45⁺cells and the number of circulating CD45⁺CD34⁺CD133⁺ cells; Spearman rank correlation test, Non-COPD (n = 13), COPD (n = 24), * P < 0.05