Figure 2.CS-induced COPD and streptozotocin-induced diabetes damaged the lungs of rats. Hematoxylin and eosin staining of bronchioles from control, COPD, diabetic and COPD diabetic rats. →: Bronchiole with smooth muscle hyperplasia, globe cell metaplasia and inflammatory cell infiltration; ★: Hyperplastic parenchyma with inflammatory cell infiltration.
