PMID: 429204Jan 22, 1979Paper

Histochemical reactions of gastrointestinal mucosubstances with orcein, high iron diamine and Alcian blue after prior oxidation of tissue sections

Histochemistry
P Sipponen

Abstract

The histochemical orcein reaction (orc) for mucosubstances in tissue samples from the human gastrointestinal tract was compared with PAS, high iron diamine (HID) and Alcian blue reactions at pH 1.0 or 2.5 (AB 1 and AB 2.5). Orc, HID and AB 1 reactions were performed also with prior oxidation of the tissue sections with potassium permanganate or performic acid (ox-orc, ox-HID and ox-AB reactions, respectively). Orc reaction stained mucosubstances similarly to HID and AB 1; only the brush border and goblet cells in the colon were stained. The reactions of the mucosubstances obtained with ox-orc differed from those with PAS, HID, AB 1 or AB 2.5 but were similar to those with ox-HID or ox-AB; the mucosubstances in the brush border and the goblet cells in the colon and small bowel and in the foveolar epithelium of the stomach were strongly stained. Pyloric and cardiac glands were stained faintly with ox-orc but not with ox-HID or ox-AB. Brunner's glands were negative with ox-orc, ox-HID and ox-AB reactions. It was assumed that the orc reaction stains, like HID or AB 1, sulphate groups in epithelial mucosubstances, and that sulphonic acid residues, resulting from oxidation of disulphide groups in the protein core of mucus glycoprotei...Continue Reading

References

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Citations

Jun 1, 1983·The Histochemical Journal·S Shousha, T R Mitchell
Sep 1, 1981·Journal of Clinical Pathology·S Shousha, G M Boxer
Mar 1, 1984·Histopathology·A J Chaplin, P Kemp
Oct 1, 1986·International Journal of Colorectal Disease·W V Bogomoletz

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