数字农科院2.0

Prevalence Study of Trichomonas gallinae in Domestic Pigeons in Northeastern Beijing and Experimental Model of Trichomoniasis in White King Squabs Measuring In Situ Apoptosis and Immune Factors in Crop and Esophagus

文献类型： 外文期刊

作者： Aixin Ni;Yunlei Li;Adamu Mani Isa;Panlin Wang;Lei Shi;Jing Fan;Pingzhuang Ge;Linlin Jiang;Yanyan Sun;Hui Ma;Jilan Chen

作者机构：

关键词： apoptosis;immune-related factors;infection;pigeon;Trichomonas gallinae

期刊名称： Animals

ISSN： 2076-2615

年卷期： 2024 年 14 卷 13 期

页码：

收录情况： SCIE（2024版）

摘要： Trichomonas gallinae (T. gallinae) is a flagellated protozoan and the causative agent of trichomoniasis, or canker, in birds. In the current study, the prevalence of T. gallinae was firstly investigated in five breeds. According to the results of the prevalence study, White King pigeons were selected as the experimental animals. A total of 135 White King squabs at one day of age were randomly divided into two groups and raised in separate isolators. The challenged group (N = 100) was challenged intranasally with 5 × 106 parasites/mL of the T. gallinae strain, and the control group (N = 35) was intranasally administered medium of equivalent volume. At 1, 2, 3 and 5 days post infection (DPIs), the crops and esophagi were collected for RNA extraction and formaldehyde fixation. The results showed that prevalence of T. gallinae in the five breeds ranged from 27.13% (White Carneau) to 43.14% (White King). After the challenge, mild microscopic lesions were observed in both tissues. Apoptosis rates were higher in the challenged group than in the control group at 2 and 5 DPIs in the crop and at 1, 2 and 7 DPIs in the esophagus. For both tissues, relative expression of IL-1β increased dramatically at the beginning and decreased at 5 DPIs, and TGF-β increased stably in the challenged group.

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