绍兴麻鸭十二指肠和直肠嗜银细胞的发育

Developmeat of Argyrophil Cells in the Duodenum and Rectum of the Shaoxing Pockmark

用Grimelieus银染法对0、5、10、30、50日龄及一年龄的四十只绍兴麻鸭十二指肠和直肠的嗜银细胞进行形态学观察和出现率统计,结果表明:1.十二指肠和直肠的嗜银细胞数多随日龄增长而增加,其绝对生长高峰期,十二指肠绒毛在10～39日龄:直肠绒毛、十二指肠腺和直肠腺在5～10日龄.其形态多为梭形或卵圆,形属“开放型”细胞.2.棕色、黑棕色和黑色的嗜银细胞在肠腺及绒毛上的分布无规律.3.绒毛上发现嗜银颗粒到达纹状缘并贴于纹状缘的嗜银细胞,肠腺内见有嗜银细胞的胞质突起沿基膜伸延,绒毛及肠腺内均见到嗜银细胞突起穿过基膜到达固有层并在此处与嗜银颗粒相连续的图像,提示绍兴麻鸭嗜银细胞还可能有旁分泌和“腔分泌”作用.

This paper deals with the morphological changes and frequency of the argyrophil cells, as stained with Grimelieus' silverimpregnation method, in the duodenum and rectum of 40 Shaoxing pockmarks at 0, 5, 10, 30, 53 days after hatching and in the adult period. The results showed that the number of the argyrophil cells in the duodenum and rectum increased with the increase of age. The absolute growth peak of the duodenal villi ranged from 13 to 30 days old, and that of the rectal villi and of glands of the duodenum and rectum ranged from a to 10 days old. Most of the cells were oval or shuttle-shaped, belonging to the 'open-type' cell. No definite regularity was found in the distribution of the brown, dark-brown and black argyrophil cells in the intestinal crypts and villi. In the striated borders of the villi there existed the argyrophil particles attaching to the argyrophil cells The argyrophil cells with cytoplasmic processes were observed in the intestinal glands. And the processes were found crossing the basement membrane, touching the lamina propria and connecting with the black argyrophil particles that were either in large masses or scattering. It is suggested that the argyrophil cells possess the paratrine and lumensecteting effects in addition to their endocrine function.