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Western blot analysis of several junctional proteins and cytokeratin (CK)-8 in rat (white bars), pig (light grey bars), and human (dark grey bars) intestines after different periods of cold storage. Samples (15 µg) from the three species from the same time-point were run simultaneously (n = 3–4). Results (mean ± standard error) were normalized to glyceraldehyde-3-phosphate dehydrogenase and presented as semiquantitative results (optical density, OD); * p < 0.05.
