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Expression of NLRP3, caspase‐1 and gasdermin D‐N‐terminal (GSDMD‐N) in synovial tissues from patients with osteoarthritis (OA) or rheumatoid arthritis (RA). (A) Sections were stained with antibodies against the indicated proteins. Scale bar, 100 μm. (B) Sections were stained with an antibody against the macrophage marker CD68 and another antibody against a pyroptosis‐related marker. Nuclei were counterstained with DAPI. Scale bar, 50 μm.
