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Representative images of LXRα and LXRβ expression in alveolar epithelium and alveolar macrophages. The distribution of LXRα (A, C, and E) and LXRβ (B, D, and F) in the alveolar wall (red arrow in B) and in alveolar macrophages (red arrow in D) present in lung sections of NS (A-B), S (C-D) and COPD patients (E-F). Positive LXRα stain indicated by black arrow.
