Fig. 6

Activities of matrix metalloproteinases (MMP): a Tissue MMP activity: Neither I/R injury nor RIPC change the activity of MMP-2 in tissue samples (a1), whereas the gelatinase activity of a putative 130 kDa “Lipocalin/MMP-9” complex is by trend increased after I/R injury (a2). b Serum MMP activity: No differences in MMP-2 serum activity are detected between the groups (b1). However, intestinal I/R-injury results in a slightly increased serum gelatinase activity of the putative 130 kDa “Lipocalin/MMP-9” complex and RIPC significantly reduces the activity of this complex in all study groups (b2). Images show representative bands from 3 out of 5 or 10 experiments. Columns show the mean of 5–10 independent experiments. Bars denote SD. ***P < 0.001. a.u. arbitrary units