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Abstract
Tritrichomonas foetus is a venereal trichomonad parasite which causes reproductive issues in cattle. No other trichomonads are known to be urogenital pathogens in cattle, but there are several reports of Tetratrichomonas and Pentatrichomonas isolates of unclear origin from the cattle urogenital tract (UGT) in the Americas. This study reports the first case of a non-T. foetus cattle urogenital trichomonad isolate in Europe. Molecular analysis of the internal transcribed spacer (ITS) 1-5.8S ribosomal RNA-ITS 2 and 18S ribosomal RNA loci suggest that the isolate is a Tetratrichomonas species from a lineage containing other previously described bull preputial isolates. We identified close sequence similarity between published urogenital and gastrointestinal Tetratrichomonas spp., and this is reviewed alongside further evidence regarding the gastrointestinal origin of non-T. foetus isolates. Routine screening for T. foetus is based on culture and identification by microscopy, and so considering other trichomonad parasites of the bovine UGT is important to avoid misdiagnosis.
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Carreiro CC, McIntosh D, dos Santos DJ, de Paula Lopes S, de Jesus VLT. Morphological and molecular characterization of a species of Tetratrichomonas present in feces of Brazilian sheep (Ovis aries) and goats (Capra hircus). Parasitol Res 2020; 119:233-242. [DOI: 10.1007/s00436-019-06466-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 09/22/2019] [Indexed: 11/30/2022]
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Petrželková KJ, Smejkalová P, Céza V, Pafčo B, Shutt-Phillips KA, Todd A, Jirků-Pomajbíková K, Benavides J, Modrý D, Čepička I. Sympatric western lowland gorillas, central chimpanzees and humans are infected with different trichomonads. Parasitology 2020; 147:225-30. [PMID: 31559930 DOI: 10.1017/S0031182019001343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We investigated intestinal trichomonads in western lowland gorillas, central chimpanzees and humans cohabiting the forest ecosystem of Dzanga-Sangha Protected Area in Central African Republic, using the internal transcribed spacer (ITS) region and SSU rRNA gene sequences. Trichomonads belonging to the genus Tetratrichomonas were detected in 23% of the faecal samples and in all host species. Different hosts were infected with different genotypes of Tetratrichomonas. In chimpanzees, we detected tetratrichomonads from 'novel lineage 2', which was previously reported mostly in captive and wild chimpanzees. In gorillas, we found two different genotypes of Tetratrichomonas. The ITS region sequences of the more frequent genotype were identical to the sequence found in a faecal sample of a wild western lowland gorilla from Cameroon. Sequences of the second genotype from gorillas were almost identical to sequences previously obtained from an anorexic French woman. We provide the first report of the presence of intestinal tetratrichomonads in asymptomatic, apparently healthy humans. Human tetratrichomonads belonged to the lineage 7, which was previously reported in domestic and wild pigs and a domestic horse. Our findings suggest that the ecology and spatial overlap among hominids in the tropical forest ecosystem has not resulted in exchange of intestinal trichomonads among these hosts.
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Dos Santos CS, de Jesus VLT, McIntosh D, Carreiro CC, Batista LCO, do Bomfim Lopes B, Neves DM, Lopes CWG. Morphological, ultrastructural, and molecular characterization of intestinal tetratrichomonads isolated from non-human primates in southeastern Brazil. Parasitol Res 2017; 116:2479-2488. [PMID: 28702802 DOI: 10.1007/s00436-017-5552-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 06/30/2017] [Indexed: 11/29/2022]
Abstract
Non-human primates are our closest relatives and represent an interesting model for comparative parasitological studies. However, research on this topic particularly in relation to intestinal parasites has been fragmentary and limited mainly to animals held in captivity. Thus, our knowledge of host-parasite relationships in this species-rich group of mammals could be considered rudimentary. The current study combined morphological, ultrastructural, and molecular analyses to characterize isolates of intestinal tetratrichomonads recovered from the feces of three species of South American, non-human primates. Fecal samples were collected from 16 animals, representing 12 distinct species. Parabasalid-like organisms were evident in five samples (31%) of feces: two from Alouatta sara, two from Callithrix penicillata, and one from Sapajus apella. The five samples presented morphologies consistent with the description of Tetratrichomonas sp., with four anterior flagella of unequal length, a well-developed undulating membrane, and a long recurrent flagellum. Sequencing of the ITS1-5.8S rRNA-ITS2 region demonstrated that the isolates from A. sara, and C. penicillata were closely related and highly similar to isolates of Tetratrichomonas brumpti, recovered previously from tortoises (Geochelone sp.). The flagellate recovered from S. apella demonstrated a similar morphology to those of the other isolates, however, sequence analysis showed it to be identical to an isolate of Tetratrichomonas sp. recovered from white-lipped peccaries (Tayassu pecari). The findings of this study extend and enhance our knowledge of parasitism of non-human primates by members of the genus Tetratrichomonas and indicate that the host range of these parasites is broader than previously believed.
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Affiliation(s)
- Caroline Spitz Dos Santos
- Programa de Pós-Graduação em Ciências Veterinárias, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil.
| | - Vera Lúcia Teixeira de Jesus
- Departamento de Avaliação e Reprodução Animal, Instituto de Zootecnia, UFRRJ, BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil
| | - Douglas McIntosh
- Departamento de Parasitologia Animal, IV, UFRRJ, BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil
| | - Caroline Cunha Carreiro
- Programa de Pós-Graduação em Ciências Veterinárias, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil
| | - Lilian Cristina Oliveira Batista
- Programa de Pós-Graduação em Ciências Veterinárias, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil
| | - Bruno do Bomfim Lopes
- Programa de Pós-Graduação em Ciência, Tecnologia e Inovação Agropecuária, Anexo 1, Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 Km 7, Seropédica, RJ, 23897-970, Brazil
| | - Daniel Marchesi Neves
- Horto Florestal Mário Xavier, Centro de Triagem de Animais Silvestres, Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis/IBAMA/Ministério do Meio Ambiente e Recursos Renováveis, Seropédica, RJ, 23835-400, Brazil
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Li WC, Wang K, Zhang W, Wu J, Gu YF, Zhang XC. Prevalence and Molecular Characterization of Intestinal Trichomonads in Pet Dogs in East China. Korean J Parasitol 2016; 54:703-710. [PMID: 28095654 PMCID: PMC5266359 DOI: 10.3347/kjp.2016.54.6.703] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/28/2016] [Accepted: 09/27/2016] [Indexed: 11/23/2022]
Abstract
The trichomonad species Tritrichomonas foetus and Pentatrichomonas hominis were recently detected in the feces of dogs with diarrhea. However, little information is available on the prevalence and pathogenicity of these parasites in the canine population. Therefore, the aim of this study was to determine the prevalence and molecular characterization of trichomonads infecting pet dogs in Anhui and Zhejiang provinces, east China. In total, 315 pet dogs, with or without diarrhea, from 7 pet hospitals were included in this epidemiological survey. Microscopy and PCR detected P. hominis in 19.7% (62/315) and 31.4% (99/315) of fecal samples, respectively. T. foetus infection was detected in 0% (0/315) of samples with microscopy and in 0.6% (2/315) with PCR. The prevalence of P. hominis was significantly higher in young dogs (≤12 months) than in adult dogs (>12 months), and was significantly higher in diarrheic dogs (50.6%) than in non-diarrheic dogs (24.3%; P<0.05). Infection with T. foetus did not correlate with any risk factors evaluated in this study. A sequence analysis of the P. hominis PCR products showed minor allelic variations between our sequences and those of P. hominis strains from other hosts in different parts of the world. Type CC1 was the most common strain in dogs in east China. The internal transcribed spacer 1 (ITS1)-5.8S rRNA gene sequences from the 2 T. foetus isolates detected in this study displayed 100% identity and were homologous to the sequences of other strains isolated from domestic cats in other countries.
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Affiliation(s)
- Wen-Chao Li
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Kai Wang
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Wei Zhang
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Jingjing Wu
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - You-Fang Gu
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, P. R. China
| | - Xi-Chen Zhang
- College of Veterinary Medicine, Jilin University, Changchun, 130062, P. R. China
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Li W, Li W, Gong P, Zhang C, Yang J, Zhang X, Li J. The prevalence of intestinal trichomonads in Chinese pigs. Vet Parasitol 2015; 211:12-5. [PMID: 25981103 DOI: 10.1016/j.vetpar.2015.04.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 04/21/2015] [Accepted: 04/26/2015] [Indexed: 11/19/2022]
Abstract
Intestinal infection of pigs with trichomonads, (Tritrichomonas suis, Tetratrichomonas buttreyi, and Pentatrichomonas hominis) has been reported in many countries, such as the Philippines, Belgium, and the Czech Republic. However, the prevalence of trichomonads infection of swine in China has not yet been investigated. In this study, we used small subunit ribosomal RNA genes to detect the prevalence of T. suis, T. buttreyi and P. hominis among 158 fecal specimens from healthy pigs. Infection rates were 12.03%(19/158), 14.57% (23/158), and 24.05% (38/158) for T. suis, T. buttreyi and P. hominis, respectively. Molecular evolutionary analysis showed minor allelic variation in T. buttreyi from China compared to T. buttreyi isolated from other hosts in different parts of the world.
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Affiliation(s)
- Weizhi Li
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, China
| | - Wei Li
- College of Veterinary Medicine, Northeast Agricultural University, 59 Mucai Street, Harbin, 150030, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, China
| | - Chengcai Zhang
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, China
| | - Ju Yang
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, China.
| | - Jianhua Li
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, China.
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