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(A) Staining for SM22 is absent in control glomeruli, but is detected in the blood vessels. (B) SM22 staining is detected in the glomerulus at day 3 of PHN, in a podocyte distribution. (C) SM22 staining is markedly increased at day 6 of PHN in podocytes. Staining was absent when the primary antibody was omitted (not shown).
