Transglutaminase changes in intestinal mucosa after experimental small bowel resection in the rat. 1992

G D'Argenio, and C Ciacci, and I Sorrentini, and R Ventriglia, and S Spagnuolo, and D Mattera, and M C Mellone, and P Iovino, and G Mazzacca
Gastroenterology Unit, II School of Medicine and Surgery, University of Naples, Italy.

The low serum transglutaminase found in various intestinal disorders (celiac disease and IBD) suggested to us to study the serum and mucosal transglutaminase behaviour in an experimental model of small intestine resection in rats to reduce cellular mass and induce enterocyte hyperproliferation in the proximal part left in continuity. Transglutaminase activity in the intestinal mucosa was significantly higher in resected rats than in control and sham operated animals from days 4 (121 +/- 10 v basal 94 +/- 3 mU/g protein, p < 0.01) to 10 (165 +/- 37 mU/g protein, p < 0.05) after surgery; no significant difference was observed at days 12 and 15 (110 +/- 15 and 105 +/- 23 respectively). Both serum alkaline phosphatase activity (partly produced in enterocytes) and serum transglutaminase were significantly lower in resected rats at each time-point beginning at day 6 (208 +/- 34 v 557 +/- 125 UI and 1.55 +/- 0.11 v 3.78 +/- 0.70 mU/ml, p < 0.001 respectively). These data suggest an involvement of transglutaminase in enterocyte proliferation and confirm the association between reduced intestinal mass and low levels of the enzyme in serum.

UI MeSH Term Description Entries
D007413 Intestinal Mucosa Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI. Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D007421 Intestine, Small The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM. Small Intestine,Intestines, Small,Small Intestines
D008297 Male Males
D011503 Transglutaminases Transglutaminases catalyze cross-linking of proteins at a GLUTAMINE in one chain with LYSINE in another chain. They include keratinocyte transglutaminase (TGM1 or TGK), tissue transglutaminase (TGM2 or TGC), plasma transglutaminase involved with coagulation (FACTOR XIII and FACTOR XIIIa), hair follicle transglutaminase, and prostate transglutaminase. Although structures differ, they share an active site (YGQCW) and strict CALCIUM dependence. Glutaminyl-Peptide Gamma-Glutamyltransferases,Protein-Glutamine gamma-Glutamyltransferases,Transglutaminase,Gamma-Glutamyltransferases, Glutaminyl-Peptide,Glutaminyl Peptide Gamma Glutamyltransferases,Protein Glutamine gamma Glutamyltransferases,gamma-Glutamyltransferases, Protein-Glutamine
D002455 Cell Division The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION. M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D000469 Alkaline Phosphatase An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.1.
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013393 Sucrase Digestive enzyme secreted in the INTESTINES. It catalyzes hydrolysis of SUCROSE to FRUCTOSE and GLUCOSE. Mutansucrase,Sucrose alpha-D-Glucohydrolase,Sucrose alpha D Glucohydrolase,alpha-D-Glucohydrolase, Sucrose
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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