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[Experimental medicine]
Lyudmila Rogova; Natalya Shesternina;
Purpose of study was to determine the specific number and expression activity of gelatinase B-positive cells in the ulcerous defect, and the magnesium levels in the concentrated red cells obtained from various locations in rats with experimental acetate gastric ulcer. The experiment was performed on 18 white Wistar rats. The study of the specific number and gelatinase B expression activity was done through immunohistochemistry (Novocastra, NCL–ММР9, for the paraffin blocks, working dilution 1:40); the content of magnesium in red blood cells through the reaction with titan yellow. The study allows concluding that in the site of experimental ulcerous defect there is an increase in the number and the expression activity оf gelatinase B-positive cells in the surface epithelium, with even a higher degree of increase in the gastric LPS (cellular component) against lowered magnesium levels in the concentrated red cells.
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Keywords: experimental acetate gastric ulcer, gelatinase B, magnesium