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Tuska-Szalay B, Gilbert J, Takács N, Boldogh SA, Fáy J, Sterczer Á, Psáder R, Kontschán J, Izsó Á, Hornok S. Molecular-phylogenetic investigation of trichomonads in dogs and cats reveals a novel Tritrichomonas species. Parasit Vectors 2024; 17:271. [PMID: 38926778 DOI: 10.1186/s13071-024-06343-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 06/01/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Trichomonosis is a common infection in small animals, mostly manifesting in gastrointestinal symptoms such as diarrhea. Although oral trichomonads are also known, the species found colonizing the large intestine are more frequently detected protozoa. METHODS In the present study, four wildcats, 94 domestic cats, and 25 dogs, originating from 18 different locations in Hungary, were investigated for the presence of oral and large intestinal trichomonads based on the 18S rRNA gene and ITS2. RESULTS All oral swabs were negative by polymerase chain reaction (PCR). However, Tritrichomonas foetus was detected in a high proportion among tested domestic cats (13.8%) and dogs (16%), and Pentatrichomonas hominis only in two domestic cats. In addition, a novel Tritrichomonas genotype was identified in one cat, probably representing a new species that was shown to be phylogenetically most closely related to Tritrichomonas casperi described recently from mice. All positive dogs and half of the positive cats showed symptoms, and among cats, the most frequent breed was the Ragdoll. CONCLUSIONS With molecular methods, this study evaluated the prevalence of oral and intestinal trichomonads in clinical samples of dogs and cats from Hungary, providing the first evidence of T. foetus in dogs of this region. In contrast to literature data, P. hominis was more prevalent in cats than in dogs. Finally, a hitherto unknown large intestinal Tritrichomonas species (closely related to T. casperi) was shown to be present in a cat, raising two possibilities. First, this novel genotype might have been a rodent-associated pseudoparasite in the relevant cat. Otherwise, the cat was actually infected, thus suggesting the role of a predator-prey link in the evolution of this trichomonad.
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Affiliation(s)
- Barbara Tuska-Szalay
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary.
| | - Julia Gilbert
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
| | - Nóra Takács
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
- HUN-REN-UVMB Climate Change, New Blood-Sucking Parasites and Vector-Borne Pathogens Research Group, Budapest, Hungary
| | - Sándor A Boldogh
- Department of Nature Conservation, Aggtelek National Park Directorate, Jósvafő, Hungary
| | - József Fáy
- Petcity Animal Clinic, Kecskemét, Hungary
| | - Ágnes Sterczer
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Roland Psáder
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Jenő Kontschán
- Plant Protection Institute, Centre for Agricultural Research, HUN-REN, Budapest, Hungary
- Department of Plant Sciences, Albert Kázmér Faculty of Mosonmagyaróvár, Széchenyi István University, Mosonmagyaróvár, Hungary
| | - Ádám Izsó
- Department of Park Rangers, Aggtelek National Park, Jósvafő, Hungary
| | - Sándor Hornok
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
- HUN-REN-UVMB Climate Change, New Blood-Sucking Parasites and Vector-Borne Pathogens Research Group, Budapest, Hungary
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2
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Chen DQ, Wang QY, Li QQ, Luo XY, Wu XH, Wang JP, Gao SC, Liu XC, Li W. The First Report of Tritrichomonas Foetus and Tetratrichomonas Buttreyi in Raccoon Dogs (Nyctereutes Procyonoides) in China. Acta Parasitol 2024:10.1007/s11686-024-00858-3. [PMID: 38888726 DOI: 10.1007/s11686-024-00858-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/21/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND In recent years, the trichomonosis in raccoon dogs in China had occurred frequently. Pentatrichomonas hominis had been described in raccoon dogs in China in some previous studies. PURPOSE TO REVEAL: whether raccoon dogs can be infected by other trichomonad species besides P. hominis, and clarify the prevalence and species distribution of trichomonad in raccoon dogs. METHODS Herein, the 389 fecal samples were collected from farm-raised raccoon dogs in Hebei Province, all the samples were detected using the microscopic examination and several fecal samples containing trichomonad-like organisms were processed, cultured, stained, and photographed. Meanwhile, all the samples were screened by the species-specific nested PCR based on the small subunit rRNA (SSU rRNA) gene of P. hominis,Tritrichomonas foetus and Tetratrichomonas buttreyi, respectively, and all positive secondary PCR amplications obtained in this study were sequenced, aligned and analysed. RESULTS 62 fecal samples (15.9%,62/389) were trichomonad-positive under light microscopy, and the trichomonad-like cells were clearly observed in the culture contents. The PCR results showed that 100 samples were trichomonad-positive, including 45 P. hominis-positive samples (11.6%,45/389), 32 T. foetus-positive samples (8.2%,32/389), and 33 T. buttreyi-positive samples (8.5%,33/389), respectively. Double mixed infections were observed in 10 samples. The prevalence of T. foetus and P. hominis were both significantly higher in raccoon dogs with diarrhea (13.9%, and 25.0%) than that in raccoon dogs without diarrhea (7.6%, and 9.3%) (p < 0.05).All samples confirmed as trichomonad-positive under microscopy were also found to be trichomonad-positive by PCR analysis. The sequencing and phylogenetic analysis demonstrated the sequences obtained in this study belonged to P. hominis, T. foetus and T. buttreyi SSU rRNA, respectively. Among them, the T. buttreyi SSU rRNA sequences obtained in this study harbored the new sequence polymorphisms. Based on preliminary morphological and molecular analyses, raccoon dogs are considered as the new host of T. foetus and T. buttreyi. CONCLUSION This is the first report about the identifcation and prevalence of T. foetus and T. buttreyi in raccoon dogs in China, and the results increase our knowledge about the host range and prevalence of trichomonad species.
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Affiliation(s)
- Dong-Qian Chen
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Qiu-Yue Wang
- Key Laboratory of Preventive Veterinary Medicine in Hebei Province, Hebei Normal University of Science and Technology, Qinhuangdao, 066000, China
| | - Qiao-Qiao Li
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Xin-Yu Luo
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Xing-Hua Wu
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Ji-Pu Wang
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Si-Chao Gao
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - Xin-Chao Liu
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China
| | - WenChao Li
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China.
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3
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Zhu Y, Cai H, Yan Z, Shen H, Fang S, Wang D, Liao S, Qi N, Lv M, Lin X, Hu J, Song Y, Chen X, Yin L, Zhang J, Li J, Sun M. Alleviating Pentatrichomonas hominis-induced damage in IPEC-J2 cells: the beneficial influence of porcine-derived lactobacilli. Vet Res Commun 2024:10.1007/s11259-024-10414-z. [PMID: 38771449 DOI: 10.1007/s11259-024-10414-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 05/14/2024] [Indexed: 05/22/2024]
Abstract
Pentatrichomonas hominis is a common intestinal parasitic protozoan that causes abdominal pain and diarrhea, and poses a zoonotic risk. Probiotics, known for enhancing immunity and pathogen resistance, hold promise in combating parasitic infections. This study aimed to evaluate two porcine-derived probiotics, Lactobacillus reuteri LR1 and Lactobacillus plantarum LP1, against P. hominis infections in pigs. Taxonomic identity was confirmed through 16 S rRNA gene sequencing, with L. reuteri LR1 belonging to L. reuteri species and L. plantarum LP1 belonging to L. plantarum species. Both probiotics exhibited robust in vitro growth performance. Co-culturing intestinal porcine epithelial cell line (IPEC-J2) with these probiotics significantly improved cell viability compared with the control group. Pre-incubation probiotics significantly enhanced the mRNA expression of anti-oxidative response genes in IPEC-J2 cells compared with the PHGD group, with L. reuteri LR1 and L. plantarum LP1 significantly up-regulating CuZn-SOD、CAT and Mn-SOD genes expression (p < 0.05). The anti-oxidative stress effect of L. reuteri LR1 was significantly better than that of L. plantarum LP1 (p < 0.05). Furthermore, pre-incubation with the probiotics alleviated the P. hominis-induced inflammatory response. L. reuteri LR1 and L. plantarum LP1 significantly down-regulated IL-6、IL-8 and TNF-α gene expression(p < 0.05) compared with the PHGD group. The probiotics also mitigated P. hominis-induced apoptosis. L. reuteri LR1 and L. plantarum LP1 significantly down-regulated Caspase3 and Bax gene expression (p < 0.05), significantly up-regulated Bcl-2 gene expression (p < 0.05) compared with the PHGD group. Among them, L. plantarum LP1 showed better anti-apoptotic effect. These findings highlight the probiotics for mitigating P. hominis infections in pigs. Their ability to enhance anti-oxidative responses, alleviate inflammation, and inhibit apoptosis holds promise for therapeutic applications. Simultaneously, probiotics can actively contribute to inhibiting trichomonal infections, offering a novel approach for preventing and treating diseases such as P. hominis. Further in vivo studies are required to validate these results and explore their potential in animal and human health.
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Grants
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2022020202 Science and technology project of Yunfu
- 2023QZ-NK05, 2022GZ07 Opening Project of State Key Laboratory of Swine and Poultry Breeding In-dustry
- 2023QZ-NK05, 2022GZ07 Opening Project of State Key Laboratory of Swine and Poultry Breeding In-dustry
- 2023QZ-NK05, 2022GZ07 Opening Project of State Key Laboratory of Swine and Poultry Breeding In-dustry
- 2023QZ-NK05, 2022GZ07 Opening Project of State Key Laboratory of Swine and Poultry Breeding In-dustry
- 2023QZ-NK05, 2022GZ07 Opening Project of State Key Laboratory of Swine and Poultry Breeding In-dustry
- 2023B04J0137, 2023A04J0789 Science and technology project of Guangzhou
- 2023B04J0137, 2023A04J0789 Science and technology project of Guangzhou
- 2023B04J0137, 2023A04J0789 Science and technology project of Guangzhou
- 2023B04J0137, 2023A04J0789 Science and technology project of Guangzhou
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 202110TD, 202122TD, R2020PY-JC001, R2019YJ-YB3010, R2020PY-JG013, R2020QD-048, R2021PY-QY007, R2023PY-JG018 Special fund for scientific innovation strategy-construction of high level Academy of Agriculture Science
- 2023SDZG02 The open competition program of top ten critical priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan of Guangdong Province
- 2023SDZG02 The open competition program of top ten critical priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan of Guangdong Province
- 2023SDZG02 The open competition program of top ten critical priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan of Guangdong Province
- 2023SDZG02 The open competition program of top ten critical priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan of Guangdong Province
- 2023SDZG02 The open competition program of top ten critical priorities of Agricultural Science and Technology Innovation for the 14th Five-Year Plan of Guangdong Province
- 2023B0202150001 Key Realm R&D Program of Guangdong Province
- 2023B0202150001 Key Realm R&D Program of Guangdong Province
- 2023B0202150001 Key Realm R&D Program of Guangdong Province
- 2023B0202150001 Key Realm R&D Program of Guangdong Province
- 2021B1212050021 Science and Technology Plan Projects of Guangdong Province
- 2021B1212050021 Science and Technology Plan Projects of Guangdong Province
- 2021B1212050021 Science and Technology Plan Projects of Guangdong Province
- 2021B1515120006 Guangdong Basic and Applied Basic Research Foundation
- 2021B1515120006 Guangdong Basic and Applied Basic Research Foundation
- XTXM202202 The Project of Collaborative Innovation Center of GDAAS
- XTXM202202 The Project of Collaborative Innovation Center of GDAAS
- XTXM202202 The Project of Collaborative Innovation Center of GDAAS
- 2022KJ119 Guangdong Provincial special fund for modern Agriculture Industry Tech-nology Innovation teams
- 2022KJ119 Guangdong Provincial special fund for modern Agriculture Industry Tech-nology Innovation teams
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Affiliation(s)
- Yibin Zhu
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Haiming Cai
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Zhuanqiang Yan
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd, Xinxing, 527400, Guangdong, China
| | - Hanqin Shen
- Guangdong Jingjie Inspection and Testing Co., Ltd, Xinxing, 527400, Guangdong, China
| | - Siyun Fang
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd, Xinxing, 527400, Guangdong, China
| | - Dingai Wang
- Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd, Xinxing, 527400, Guangdong, China
| | - Shenquan Liao
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Nanshan Qi
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Minna Lv
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Xuhui Lin
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Junjing Hu
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Yongle Song
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Xiangjie Chen
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Lijun Yin
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Jianfei Zhang
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Juan Li
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
| | - Mingfei Sun
- Key Laboratory of Livestock Disease Prevention of Guangdong Province, Key Laboratory of Avian Influenza and Other Major Poultry Diseases Prevention and Control, Ministry of Agriculture and Rural Affairs, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
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ZHANG H, ZHANG N, GONG P, CHENG S, WANG X, LI X, HOU Z, LIU C, BI T, WANG B, CHENG Y, LI J, ZHANG X. Prevalence and molecular characterization of
Pentatrichomonas hominis
in Siberian tigers
(Panthera tigris altaica)
in northeast China. Integr Zool 2022; 17:543-549. [PMID: 35064641 PMCID: PMC9541480 DOI: 10.1111/1749-4877.12629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Hongbo ZHANG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Nan ZHANG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Pengtao GONG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Shuqin CHENG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Xiaocen WANG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Xin LI
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Zhijun HOU
- College of Wildlife and Protected Area Northeast Forestry University Harbin 150040 China
| | - Chang LIU
- Changchun Animal and Plant Park Changchun 130022 China
| | - Tianqi BI
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Bobo WANG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Yidan CHENG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Jianhua LI
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
| | - Xichen ZHANG
- Key Laboratory of Zoonosis Research by Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine Jilin University Changchun 130062 China
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5
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Mahittikorn A, Udonsom R, Koompapong K, Chiabchalard R, Sutthikornchai C, Sreepian PM, Mori H, Popruk S. Molecular identification of Pentatrichomonas hominis in animals in central and western Thailand. BMC Vet Res 2021; 17:203. [PMID: 34078384 PMCID: PMC8173913 DOI: 10.1186/s12917-021-02904-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pentatrichomonas hominis inhabits the digestive tracts of several vertebrates, such as humans, monkeys, pigs, dogs, cats and rats. This protozoan was originally considered a commensal of the digestive tract but has subsequently been identified as a potential zoonotic parasite and a causative agent of diarrhoea. Molecular techniques are considered more sensitive and specific to detect P. hominis. This study aimed to determine the presence and genetic diversity of P. hominis in animals in Thailand. A total of 403 faecal samples were collected from 119 cats, 55 dogs, 73 goats, 35 monkeys, 55 cattle and 66 pigs, and the presence of P. hominis was determined using the nested polymerase chain reaction method. Sequence analysis of small-subunit ribosomal RNA genes was used to determine the genotype of the organism. RESULTS Twenty-six samples (26/403, 6.45%) were positive for P. hominis. The highest prevalence was found in cats (21/119; 17.65%), followed by cattle (3/55; 5.45%) and dogs (2/55; 3.64%). Seven out of 26 nucleotides demonstrated 100% sequence identity with existing sequences; additionally, 16 novel sequence patterns were identified. All nucleotide sequences of P. hominis-positive samples were shown in the same branch with the previously described P. hominis sequences found in humans, dogs and goat. CONCLUSION This is the first study on P. hominis infections in animals in Thailand. Our findings revealed that the prevalence of P. hominis was significantly higher in cats than in cattle and dogs. Cats were the main reservoir host; however, P. hominis can infect several kinds of animals. Therefore, the proper waste management of animals is necessary to reduce and prevent infection in the community.
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Affiliation(s)
- Aongart Mahittikorn
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Ruenruetai Udonsom
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Khuanchai Koompapong
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Rachatawan Chiabchalard
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Chantira Sutthikornchai
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand
| | | | - Hirotake Mori
- Department of General Medicine, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Supaluk Popruk
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Ratchawithi Road, Ratchathewi, Bangkok, 10400, Thailand.
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