Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)

Blastocystis sp., a parasitic eukaryote, widely colonizes the intestines of humans and a large number of animals, including rodents and lagomorphs. More than 30 million bamboo rats (Rhizomys sinensis) are farmed in China as a source of meat for human consumption. However, there have been no publishe...

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Main Authors: Song Junke, Yang Xin, Ma Xun, Wu Xuemei, Wang Yuxin, Li Zhili, Liu Guohua, Zhao Guanghui
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:Parasite
Subjects:
Online Access:https://www.parasite-journal.org/articles/parasite/full_html/2021/01/parasite210074/parasite210074.html
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author Song Junke
Yang Xin
Ma Xun
Wu Xuemei
Wang Yuxin
Li Zhili
Liu Guohua
Zhao Guanghui
author_facet Song Junke
Yang Xin
Ma Xun
Wu Xuemei
Wang Yuxin
Li Zhili
Liu Guohua
Zhao Guanghui
author_sort Song Junke
collection DOAJ
description Blastocystis sp., a parasitic eukaryote, widely colonizes the intestines of humans and a large number of animals, including rodents and lagomorphs. More than 30 million bamboo rats (Rhizomys sinensis) are farmed in China as a source of meat for human consumption. However, there have been no published articles on Blastocystis infection in Chinese bamboo rats prior to the present study. Herein, 480 fresh faecal samples were collected from R. sinensis on six farms located in four cities (Wugang, Chenzhou, Huaihua and Jishou) in Hunan Province, south-central China, and were examined for Blastocystis infection using polymerase chain reaction (PCR) targeting the small subunit ribosomal RNA (SSU rRNA) gene. The total prevalence of Blastocystis in R. sinensis was 4.58% (22/480), and significant differences in prevalence were detected among four age groups (<6 months, 6–12 months, 12–24 months and >24 months), with the highest prevalence (7.81%) in rats aged 6–12 months but with no positive samples in rats over 24 months. All farms, except for one in Jishou, were positive for Blastocystis infection, with the prevalence ranging from 1.80% to 7.27%. Sequence and phylogenetic analyses revealed two potentially zoonotic subtypes (namely ST4 and ST5) in these rodents, with ST4 predominant in all except one farm in Huaihua. Seven and five sequence types were identified within ST4 and ST5, respectively. This is the first report of Blastocystis infection in Chinese bamboo rats and the findings suggest the potential of R. sinensis to transmit Blastocystis to humans.
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spelling doaj.art-5c6ea535731a4eb1a4e68d39ce122e722023-12-02T09:42:14ZengEDP SciencesParasite1776-10422021-01-01288110.1051/parasite/2021081parasite210074Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)Song Junke0Yang Xin1Ma Xun2Wu Xuemei3Wang Yuxin4Li Zhili5Liu Guohua6Zhao Guanghui7College of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Life Science and Engineering, Foshan UniversityCollege of Veterinary Medicine, Hunan Agricultural UniversityCollege of Veterinary Medicine, Northwest A&F UniversityBlastocystis sp., a parasitic eukaryote, widely colonizes the intestines of humans and a large number of animals, including rodents and lagomorphs. More than 30 million bamboo rats (Rhizomys sinensis) are farmed in China as a source of meat for human consumption. However, there have been no published articles on Blastocystis infection in Chinese bamboo rats prior to the present study. Herein, 480 fresh faecal samples were collected from R. sinensis on six farms located in four cities (Wugang, Chenzhou, Huaihua and Jishou) in Hunan Province, south-central China, and were examined for Blastocystis infection using polymerase chain reaction (PCR) targeting the small subunit ribosomal RNA (SSU rRNA) gene. The total prevalence of Blastocystis in R. sinensis was 4.58% (22/480), and significant differences in prevalence were detected among four age groups (<6 months, 6–12 months, 12–24 months and >24 months), with the highest prevalence (7.81%) in rats aged 6–12 months but with no positive samples in rats over 24 months. All farms, except for one in Jishou, were positive for Blastocystis infection, with the prevalence ranging from 1.80% to 7.27%. Sequence and phylogenetic analyses revealed two potentially zoonotic subtypes (namely ST4 and ST5) in these rodents, with ST4 predominant in all except one farm in Huaihua. Seven and five sequence types were identified within ST4 and ST5, respectively. This is the first report of Blastocystis infection in Chinese bamboo rats and the findings suggest the potential of R. sinensis to transmit Blastocystis to humans.https://www.parasite-journal.org/articles/parasite/full_html/2021/01/parasite210074/parasite210074.htmlblastocystis sp.prevalencesubtypingrhizomys sinensishunan province
spellingShingle Song Junke
Yang Xin
Ma Xun
Wu Xuemei
Wang Yuxin
Li Zhili
Liu Guohua
Zhao Guanghui
Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)
Parasite
blastocystis sp.
prevalence
subtyping
rhizomys sinensis
hunan province
title Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)
title_full Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)
title_fullStr Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)
title_full_unstemmed Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)
title_short Molecular characterization of Blastocystis sp. in Chinese bamboo rats (Rhizomys sinensis)
title_sort molecular characterization of blastocystis sp in chinese bamboo rats rhizomys sinensis
topic blastocystis sp.
prevalence
subtyping
rhizomys sinensis
hunan province
url https://www.parasite-journal.org/articles/parasite/full_html/2021/01/parasite210074/parasite210074.html
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