Fig. 1
a-b Adpl level (a) and HMW form proportion (b) in non-hypoxemic and hypoxemic COPD patients. Adpl level was measured by ELISA and HMW form proportion was determined using a non-denaturing PAGE-SDS followed by a Western blot. Data were represented as boxplots (5th and 95th percentiles). Rank-Sum test: NS. c-d Correlation between lung function parameters and Adpl level (vertical) or HMW form proportion (horizontal), in non-hypoxemic (c) and hypoxemic (d) COPD patients. Pearson correlation coefficients (R) between every parameter and either Adpl level or HMW form proportion were calculated and represented as a point on the graph. The box in the graph represents the critical value for Pearson correlation coefficient to obtain a p < 0.05. Therefore, every point outside the box corresponds to a significant correlation. e Representative blots of Ad form proportions in hypoxemic and non-hypoxemic patients, determined by using non-denaturant PAGE-SDS followed by a Western blot. HMW forms correspond to the higher molecular weight bands. Admer/total Ad ratios were obtained after densitometric analysis