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Remodeling markers. Photomicrographs of extracellular matrix remodeling features in the alveolar walls: collagen fibers I and metalloproteinase inhibitor (TIMP-1). The red arrows indicate the collagen fibers and positive cells for TIMP-1. All images are presented at a magnification of 1,000×, scale bars = 10 µm. The experimental groups are represented as: SAL, OVA, OVA anti-IL-17, OVA-LPS, and OVA-LPS anti-IL-17.
