A lethal model of Leptospira infection in hamster nasal mucosa
Leptospirosis is a fatal zoonosis caused by contact between skin or a mucosal surface and contaminated soil or water. Hamsters were infected by intraperitoneal injection fto establish experimental leptospirosis, which is not a natural route of infection. There are no reports of nasal mucosal infecti...
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ftdoajarticles:oai:doaj.org/article:19247d9cd80f40009a3c74eb08a8f6f6 2023-05-15T15:16:45+02:00 A lethal model of Leptospira infection in hamster nasal mucosa Jiaqi Wang Wenlong Zhang Zhao Jin Yue Ding Shilei Zhang Dianjun Wu Yongguo Cao 2022-02-01T00:00:00Z https://doaj.org/article/19247d9cd80f40009a3c74eb08a8f6f6 EN eng Public Library of Science (PLoS) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863242/?tool=EBI https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 https://doaj.org/article/19247d9cd80f40009a3c74eb08a8f6f6 PLoS Neglected Tropical Diseases, Vol 16, Iss 2 (2022) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2022 ftdoajarticles 2022-12-31T15:48:22Z Leptospirosis is a fatal zoonosis caused by contact between skin or a mucosal surface and contaminated soil or water. Hamsters were infected by intraperitoneal injection fto establish experimental leptospirosis, which is not a natural route of infection. There are no reports of nasal mucosal infection in hamsters. In this study, infection of the nasal mucosa was performed to establish a model of natural infection. Both methods of infection can cause lethal models with similar symptoms in the later stages of infection, such as weight loss, blood concentration, increased neutrophils (GRAN), and decreased lymphocytes (LYM) in the blood, severe organ damage and liver function obstruction. The burden of Leptospira in the organs and blood was lower in the mucosal inoculation groups at 1 day after infection. However, mucosal infection induced a higher Leptospira burden in urine than intraperitoneal infection in the late stages of infection. After nasal mucosal infection, antibody levels were higher and lasted longer. These results indicated that the route of nasal mucosal infection is a good choice for studying leptospirosis in hamsters. Author summary The establishment of a leptospirosis experimental model is still key to elucidating the pathogenesis of leptospirosis. Hamsters were infected by intraperitoneal injection to establish experimental leptospirosis, although this is not a natural route of infection. The transmission characteristics of Leptospira and the disease progression in hamsters infected by a natural transmission route (e.g. through mucosal surfaces) had not been explored. In this study, we compared the dynamics of Leptospira infection in hamsters inoculated via the nasal mucosa or by intraperitoneal inoculation, and compared the burden of Leptospira and the level of antibodies produced with disease progression, such as body weight, serology, haematological changes and histopathological changes. Our data suggested that there are significant differences in the dynamics of infection between ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic |
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Directory of Open Access Journals: DOAJ Articles |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Jiaqi Wang Wenlong Zhang Zhao Jin Yue Ding Shilei Zhang Dianjun Wu Yongguo Cao A lethal model of Leptospira infection in hamster nasal mucosa |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Leptospirosis is a fatal zoonosis caused by contact between skin or a mucosal surface and contaminated soil or water. Hamsters were infected by intraperitoneal injection fto establish experimental leptospirosis, which is not a natural route of infection. There are no reports of nasal mucosal infection in hamsters. In this study, infection of the nasal mucosa was performed to establish a model of natural infection. Both methods of infection can cause lethal models with similar symptoms in the later stages of infection, such as weight loss, blood concentration, increased neutrophils (GRAN), and decreased lymphocytes (LYM) in the blood, severe organ damage and liver function obstruction. The burden of Leptospira in the organs and blood was lower in the mucosal inoculation groups at 1 day after infection. However, mucosal infection induced a higher Leptospira burden in urine than intraperitoneal infection in the late stages of infection. After nasal mucosal infection, antibody levels were higher and lasted longer. These results indicated that the route of nasal mucosal infection is a good choice for studying leptospirosis in hamsters. Author summary The establishment of a leptospirosis experimental model is still key to elucidating the pathogenesis of leptospirosis. Hamsters were infected by intraperitoneal injection to establish experimental leptospirosis, although this is not a natural route of infection. The transmission characteristics of Leptospira and the disease progression in hamsters infected by a natural transmission route (e.g. through mucosal surfaces) had not been explored. In this study, we compared the dynamics of Leptospira infection in hamsters inoculated via the nasal mucosa or by intraperitoneal inoculation, and compared the burden of Leptospira and the level of antibodies produced with disease progression, such as body weight, serology, haematological changes and histopathological changes. Our data suggested that there are significant differences in the dynamics of infection between ... |
format |
Article in Journal/Newspaper |
author |
Jiaqi Wang Wenlong Zhang Zhao Jin Yue Ding Shilei Zhang Dianjun Wu Yongguo Cao |
author_facet |
Jiaqi Wang Wenlong Zhang Zhao Jin Yue Ding Shilei Zhang Dianjun Wu Yongguo Cao |
author_sort |
Jiaqi Wang |
title |
A lethal model of Leptospira infection in hamster nasal mucosa |
title_short |
A lethal model of Leptospira infection in hamster nasal mucosa |
title_full |
A lethal model of Leptospira infection in hamster nasal mucosa |
title_fullStr |
A lethal model of Leptospira infection in hamster nasal mucosa |
title_full_unstemmed |
A lethal model of Leptospira infection in hamster nasal mucosa |
title_sort |
lethal model of leptospira infection in hamster nasal mucosa |
publisher |
Public Library of Science (PLoS) |
publishDate |
2022 |
url |
https://doaj.org/article/19247d9cd80f40009a3c74eb08a8f6f6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 16, Iss 2 (2022) |
op_relation |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863242/?tool=EBI https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 https://doaj.org/article/19247d9cd80f40009a3c74eb08a8f6f6 |
_version_ |
1766347049426485248 |