Morphometric analysis of the small intestinal epithelium in the indomethacin-treated mouse.

RR Ettarh, KE Carr - Journal of anatomy, 1996 - ncbi.nlm.nih.gov
RR Ettarh, KE Carr
Journal of anatomy, 1996ncbi.nlm.nih.gov
To obtain a clearer understanding of the changes which are induced in the small intestine of
the mouse by an ulcerogenic dose of indomethacin, a quantitative analysis of the
nonulcerated small intestinal mucosa was performed in mice that were given 2 injections of
indomethacin at a dose of 85 mg/kg body weight. At 20 h after the administration of the drug,
values were obtained for epithelial volume, whole crypt number, and for the number of
profiles of columnar, Paneth, entero-endocrine and goblet cells and cryptal mitotic figures in …
Abstract
To obtain a clearer understanding of the changes which are induced in the small intestine of the mouse by an ulcerogenic dose of indomethacin, a quantitative analysis of the nonulcerated small intestinal mucosa was performed in mice that were given 2 injections of indomethacin at a dose of 85 mg/kg body weight. At 20 h after the administration of the drug, values were obtained for epithelial volume, whole crypt number, and for the number of profiles of columnar, Paneth, entero-endocrine and goblet cells and cryptal mitotic figures in the small intestine. Comparison of the values obtained from indomethacin-treated mice with those from control mice showed that there were fewer whole crypts and a reduced epithelial volume in the jejunum and ileum in indomethacin-treated mice. The numbers of columnar and Paneth cell profiles and of mitotic figures were significantly greater in the jejunal and ileal crypts in indomethacin-treated mice than in controls. These findings suggest that the administration of high-dose indomethacin in the mouse leads to crypt losses and increased mitotic activity in the nonulcerated parts of the small intestine.
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