Guinea pig infected with Mycobacterium tuberculosis via oral consumption

Guinea pig represents a highly suitable animal model for study of Mycobacterium tuberculosis(Mtb)infection, as it demonstrates similarities to Mtb pulmonary infection in humans. It is known that guinea pigs can be efficiently infected by the respiratory or subcutaneous exposure to Mtb. However, info...

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Main Authors: Jianfeng Gao, Ming Guo, Li Teng, Rong Bao, Qiaoyang Xian, Xin Wang, Wenzhe Ho
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Journal of Applied Animal Research
Subjects:
Online Access:http://dx.doi.org/10.1080/09712119.2018.1505622
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author Jianfeng Gao
Ming Guo
Li Teng
Rong Bao
Qiaoyang Xian
Xin Wang
Wenzhe Ho
author_facet Jianfeng Gao
Ming Guo
Li Teng
Rong Bao
Qiaoyang Xian
Xin Wang
Wenzhe Ho
author_sort Jianfeng Gao
collection DOAJ
description Guinea pig represents a highly suitable animal model for study of Mycobacterium tuberculosis(Mtb)infection, as it demonstrates similarities to Mtb pulmonary infection in humans. It is known that guinea pigs can be efficiently infected by the respiratory or subcutaneous exposure to Mtb. However, information on Mtb infection through oral route is almost absent in the literature. Here, we examined whether guinea pigs can be infected by drinking Mtb containing water. Our findings confirmed that the guinea pigs could be infected with Mtb via drinking virulent water. The infected guinea pigs developed uniform oval-craterform ulcers at the 30th day after infection. Bacterial cultures showed Mtb growth in the lungs and spleens from the guinea pigs infected with high dose of Mtb. In addition, the infected animals had histopathological granulomatous lesions in lungs, spleens and mesenteric lymph nodes. We provide the compelling evidence that the guinea pigs could be infected by drinking Mtb containing water. The clinical and pathological observations in the infected animals were similar to those found in guinea pigs infected via the respiratory or subcutaneous routes.
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spelling doaj.art-f0917b47eb50429888f84bc1ad9341f02022-12-21T18:51:30ZengTaylor & Francis GroupJournal of Applied Animal Research0971-21190974-18442018-01-014611323132810.1080/09712119.2018.15056221505622Guinea pig infected with Mycobacterium tuberculosis via oral consumptionJianfeng Gao0Ming Guo1Li Teng2Rong Bao3Qiaoyang Xian4Xin Wang5Wenzhe Ho6Wuhan UniversityWuhan UniversityWuhan Medical Care Center for Women and ChildrenWuhan UniversityWuhan UniversityWuhan UniversityWuhan UniversityGuinea pig represents a highly suitable animal model for study of Mycobacterium tuberculosis(Mtb)infection, as it demonstrates similarities to Mtb pulmonary infection in humans. It is known that guinea pigs can be efficiently infected by the respiratory or subcutaneous exposure to Mtb. However, information on Mtb infection through oral route is almost absent in the literature. Here, we examined whether guinea pigs can be infected by drinking Mtb containing water. Our findings confirmed that the guinea pigs could be infected with Mtb via drinking virulent water. The infected guinea pigs developed uniform oval-craterform ulcers at the 30th day after infection. Bacterial cultures showed Mtb growth in the lungs and spleens from the guinea pigs infected with high dose of Mtb. In addition, the infected animals had histopathological granulomatous lesions in lungs, spleens and mesenteric lymph nodes. We provide the compelling evidence that the guinea pigs could be infected by drinking Mtb containing water. The clinical and pathological observations in the infected animals were similar to those found in guinea pigs infected via the respiratory or subcutaneous routes.http://dx.doi.org/10.1080/09712119.2018.1505622Mycobacterium tuberculosisGuinea pigoral consumptionexperimental infection
spellingShingle Jianfeng Gao
Ming Guo
Li Teng
Rong Bao
Qiaoyang Xian
Xin Wang
Wenzhe Ho
Guinea pig infected with Mycobacterium tuberculosis via oral consumption
Journal of Applied Animal Research
Mycobacterium tuberculosis
Guinea pig
oral consumption
experimental infection
title Guinea pig infected with Mycobacterium tuberculosis via oral consumption
title_full Guinea pig infected with Mycobacterium tuberculosis via oral consumption
title_fullStr Guinea pig infected with Mycobacterium tuberculosis via oral consumption
title_full_unstemmed Guinea pig infected with Mycobacterium tuberculosis via oral consumption
title_short Guinea pig infected with Mycobacterium tuberculosis via oral consumption
title_sort guinea pig infected with mycobacterium tuberculosis via oral consumption
topic Mycobacterium tuberculosis
Guinea pig
oral consumption
experimental infection
url http://dx.doi.org/10.1080/09712119.2018.1505622
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