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Tight junction protein levels in healthy mice. Immunoblot analysis of tight protein levels for occludin (A), zonula occludens-1 (ZO-1) (B) and claudin-1 (C) are shown for the ileum and colon in C57BL/6J and BALB/cJ mice. The protein levels were normalized to β-actin. Statistics: mean ± SEM, N = 16–24 per group.
