Fig. 9

Alveolar macrophage Ki67 expression. This figure shows immunohistochemical detection of Ki67 in lung resection specimens of COPD, S and NS. Representative images of n = 9 COPD, n = 9 S and n = 6 NS. Positively labelling cells were visualised using DAB. Immunoreactive cells (brown nuclei) are indicated with an arrow. 8a) Ki67 labelled lung resection specimen 8b) negative control 8c) tonsilar tissue (positive control). Images taken using an X40 objective lens