Qi Shan-Shan, Wang Wen-Hui, Gao Qiang, Xu Xiao-Hong, He Wan-Hong, Zhaxi Ying-Pai, Tai Li-Feng
Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, 730070, China.
Trop Anim Health Prod. 2011 Aug;43(6):1219-23. doi: 10.1007/s11250-011-9829-x. Epub 2011 Apr 3.
The distribution, size, and appearance of Peyer's patches vary according to species. In order to determine the anatomical characteristics of Peyer's patches in small intestine of Bactrian camel, and age-related changes in the number of Peyer's patches, 40 Bactrian camels of the following four age groups were studied: young (0.5-2 years), pubertal (3-5 years), middle-aged (6-16 years), and old (17-20 years). The exact number of Peyer's patches was recorded, and the appearance of Peyer's patches was described in detail. The results indicated that Peyer's patches of Bactrian camels not only have a particular anatomical location and distinct appearance but also change with age. They were distributed in the whole small intestine and there were four distinct types of Peyer's patches: nodular, faviform, cup-shaped, and cystic form Peyer's patches. However, the nodular and cystic form Peyer's patches are specific to Bactrian camel, which have not been found in other animals including Dromedary camel. In addition, the distribution density of Peyer's patches in ileum was the maximum, then was jejunum and duodenum. Further statistical analysis showed that the number of Peyer's patches was altered with age. The number peaked in 5-year-old camels and declined subsequently with age. However, there was little change in the size of Peyer's patches in different age groups; no age-related macroscopic variations in the shape or size of the Peyer's patches were found. Results obtained from this study provide the basic information to further study on the gastrointestinal mucosal immunity of Bactrian camel.
派伊尔氏淋巴集结的分布、大小和外观因物种而异。为了确定双峰驼小肠中派伊尔氏淋巴集结的解剖特征以及派伊尔氏淋巴集结数量的年龄相关变化，对以下四个年龄组的40峰双峰驼进行了研究：幼年（0.5 - 2岁）、青春期（3 - 5岁）、中年（6 - 16岁）和老年（17 - 20岁）。记录了派伊尔氏淋巴集结的确切数量，并详细描述了派伊尔氏淋巴集结的外观。结果表明，双峰驼的派伊尔氏淋巴集结不仅具有特定的解剖位置和独特的外观，而且会随年龄变化。它们分布于整个小肠，有四种不同类型的派伊尔氏淋巴集结：结节状、蜂窝状、杯状和囊状派伊尔氏淋巴集结。然而，结节状和囊状派伊尔氏淋巴集结是双峰驼特有的，在包括单峰驼在内的其他动物中未发现。此外，派伊尔氏淋巴集结在回肠中的分布密度最大，其次是空肠和十二指肠。进一步的统计分析表明，派伊尔氏淋巴集结的数量随年龄而变化。数量在5岁的骆驼中达到峰值，随后随年龄下降。然而，不同年龄组的派伊尔氏淋巴集结大小变化不大；未发现派伊尔氏淋巴集结的形状或大小与年龄相关的宏观差异。本研究获得的结果为进一步研究双峰驼的胃肠道黏膜免疫提供了基础信息。
