Research Article

Reticular Basement Membrane Vessels Are Increased in COPD Bronchial Mucosa by Both Factor VIII and Collagen IV Immunostaining and Are Hyperpermeable

Figure 4

Comparison of the number, area, and MVS of vessels in the reticular basement membrane (Rbm). In both COPD and normal groups, Collagen IV staining outlines more vessels of larger caliber, than Factor VIII staining. MVS: mean vascular size (area μm²/No); C4: anti-Collagen IV antibody; F8: anti-Factor VIII antibody.
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