Inforzato de Lima M A, Sasso W da S
Acta Histochem. 1985;76(2):145-50. doi: 10.1016/s0065-1281(85)80051-9.
A histochemical investigation was carried out to detect glycoproteins in the lining and glandular epithelia of 4 regions of the stomach of Columba livia: proventriculus, intermediate region between proventriculus and gizzard, gizzard, intermediate region between gizzard and duodenum. It was noticed the presence of neutral and sulphoglycoproteins, with a clear predominance of the latter in the lining epithelia and in the simple tubular glands of the mucosa of these regions, except for the gizzard. Absence of glycoproteins was noticed in the oxynticopeptic cells of the branched tubular glands of the proventriculus. Neutral glycoproteins and traces of sulphoglycoproteins were present in the lining epithelia of the folds of its central cavity and of its exit duct. Lining the above mentioned structures, the correspondent of the gizzard, inclusively there was a pellicle of sialoglycoproteins.
对家鸽胃的4个区域（腺胃、腺胃与肌胃之间的中间区域、肌胃、肌胃与十二指肠之间的中间区域）的内衬和腺上皮中的糖蛋白进行了组织化学研究。结果发现存在中性和硫酸糖蛋白，除肌胃外，在这些区域黏膜的内衬上皮和简单管状腺中，后者明显占主导。在腺胃分支管状腺的泌酸细胞中未发现糖蛋白。在其中央腔和出口导管褶皱的内衬上皮中存在中性糖蛋白和微量硫酸糖蛋白。在上述结构（相当于肌胃）的内衬上，包括有一层唾液酸糖蛋白薄膜。
