Figure 1

Endothelial proliferation increased following allergic airway inflammation. The number of proliferating endothelial cells in small and mid-sized blood vessels increased following allergen challenge. Proliferation was detected using the proliferation-marker Ki67. A base line proliferation was present also in controls, however the number was very low and when correlated to the length of the basement membrane (BM), the values closed in on zero. The data are given as mean ± SEM and compared against control using the Wilcoxon Signed-ranks test, * indicates p < 0.05.