查看文章

Excretion of orally administrated ⁵¹Cr-EDTA as a marker of small intestinal permeability (a proposed prerequisite for human enteropathy) is increased by corticosteroids and non-steroidal anti-inflammatory drugs (NSAIDs). We have investigated the suitability of the rat as an animal model of small intestinal permeability using orally administered ⁵¹Cr-EDTA. We dosed Sprague-Dawley rats with NSAIDs and corticosterone followed by ⁵¹Cr-EDTA under conditions reported for humans and measured urinary excretion of the marker. In control rats, the urinary excretion of ⁵¹Cr-EDTA exhibited a skewed-to-the-left frequency distribution curve with a median of 2.13% of the dose. No sex-related differences were noticed in the baseline permeability. In male rats, single therapeutically equivalent doses of indomethacin, flurbiprofen, ibuprofen, naproxen, diclofenac, sulindac, nambumetone, and corticosterone …