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Figure 5 Opening state of tight junctions (TJs) observed by transmission electronic microscopy (TEM). All specimens were prepared according to standard protocols. Seventy two hours after (B) stress or (C) BrX‐537A injection (2 mg/kg intraperitoneally), TEM showed opening of TJs (>20 nm, indicated by the black arrows); below the black arrows, other dilatations do not correspond to TJs.
