College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; Xinyang Agricultural College, Xinyang 464000, Henan, PR China.
Tissue Cell. 2013 Dec;45(6):363-6. doi: 10.1016/j.tice.2013.06.002. Epub 2013 Aug 5.
The aim of the present study was to clarify the distribution and relative frequencies of somatostatin (SST)-producing cells in the stomach and the small intestine of the ostrich by using immunohistochemistry. The results indicated that somatostatin-immunoreactive (SST-IR) cells were distributed in mucosal layers of the proventriculus, duodenum, jejunum and ileum. However, no immunoreactivity was observed in the gizzard. SST-IR cells were found at the lower part of glandular lobule in the proventriculus, which were oval and round generally. SST-IR cells were present in the mucous membrane of entire small intestine of the ostrich. SST-IR cells had round and spherical shapes (closed-type cells), or spindle and pyriform shapes (open-type cells) in the small intestine. SST-positive cells were localized preferentially in the proventriculus of the 60-day-old ostrich. These results indicated that SST might be involved in functional and developmental regulation of gastrointestinal tract of the ostrich.
本研究旨在通过免疫组织化学方法阐明鸵鸟胃和小肠中生长抑素（SST）产生细胞的分布和相对频率。结果表明，生长抑素免疫反应（SST-IR）细胞分布在腺胃、十二指肠、空肠和回肠的黏膜层中。然而，在肌胃中未观察到免疫反应。SST-IR 细胞位于腺胃腺小叶的下部，通常呈椭圆形和圆形。SST-IR 细胞存在于鸵鸟整个小肠的黏膜中。在小肠中，SST-IR 细胞呈圆形和球形（闭合型细胞）或梭形和梨形（开放型细胞）。60 日龄鸵鸟的腺胃中 SST 阳性细胞优先定位。这些结果表明，SST 可能参与了鸵鸟胃肠道的功能和发育调节。
