畜牧兽医学报 ›› 2007, Vol. 38 ›› Issue (2): 206-208.doi:

• 基础兽医 • 上一篇    

Ghrelin在成年皖西白鹅小肠内的免疫组化定位研究

李福宝;方富贵;李梅清;涂健;陶勇;蒋书东;李培英   

  1. 安徽农业大学动物科技学院 230036
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-25 发布日期:2007-02-25

Immunohistochemical localization of ghrelin in the small intestine of adult WanXi white goose

  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-25 Published:2007-02-25

摘要: 目的 研究皖西白鹅小肠内是否有产生Ghrelin的细胞及其分布。 方法 免疫组化SABC法并结合DAB显色技术。 结果 ①Ghrelin免疫阳性细胞主要位于小肠的粘膜层,而粘膜下层和肌层未见ghrelin阳性细胞。这些阳性细胞,胞浆着色,主要有两类,一类为“闭合型”细胞,呈圆形或椭圆形,其顶部不露于腔面, 另一类为“开放型”细胞,呈锥体型,细胞顶部达到腔面。②在十二指肠,“开放型”和“闭合型”两种阳性细胞均可观察到,而在空肠和回肠,主要为“闭合型”阳性细胞。结论 产生Ghrelin的细胞在成年皖西白鹅小肠粘膜层有广泛的分布,揭示Ghrelin可能调节小肠的功能。

Abstract: Objective To study the distribution pattern of ghrelin-producing cells in small intestine of WanXi white geese. Methods The immunohistochemical SABC method and DAB staining technology were used. Results Ghrelin immunopositive cells (ghrelin-ic) were mainly found in the mucosal layer of the small intestine, but not in the submucosa and tunica muscularis. These positive cells, the intensely immunoreactive stain was found in the basal cytoplasm, named ‘‘closed type cells’’, which were rounded or oblong in shape, were not in contact with the lumen. A few ghrelin-ic, which were cone in shape, showed an apical process that contacted the lumen and were the so-called ‘‘open-type cells’’. In the duodenum in particular the two types of ghrelin-ic, ‘‘closed’’ and ‘‘open’’cells, were still observed along villi intestinales. Ghrelin-ic were less numerous in the jejunum and ileum, and were generally of the ‘‘closed’’ type. Conclusion The results suggested that ghrelin-producing cells exist in the mucosal layer of the small intestine of the adult WanXi white goose, ghrelin may regulate the function of the small intestine.