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Zhang F, Li J, Zhang S, Chen T, Zhang H. Prevalence and species identification of trematode metacercariae in Qiqihar, Northeast China. Front Microbiol 2024; 15:1464988. [PMID: 39318428 PMCID: PMC11420014 DOI: 10.3389/fmicb.2024.1464988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 08/28/2024] [Indexed: 09/26/2024] Open
Abstract
Fishborne trematode (FBT) is an important group of parasites that are endemic worldwide to a certain extent. However, despite the epidemiological significance, the species and phylogenetic evolution characteristics of FBT metacercariae have not been well studied. In this study, a total of 600 Pseudorasbora parva (P. parva) specimens were collected from Qiqihar, 61.8% (371/600) were found to be infected with trematode metacercariae. A total of three kinds of trematodes metacercariae were obtained, and they were identified as Clonorchis sinensis (C. sinensis), Metorchis orientalis (M. orientalis), and Metorchis taiwanensis (M. taiwanensis) by morphological and phylogenetic analysis with infection rates of 47.7% (286/600), 15.5% (93/600), and 23.7% (142/600), respectively. Meanwhile, a survey of the three trematodes metacercariae showed that the infection rate of C. sinensis metacercariae was the highest in September, up to 66% (66/100), and the lowest in June at 26% (26/100). The infection rate of M. orientalis metacercariae was the highest in October at 26% (26/100) and the lowest in June at 5% (5/100). The infection rate of M. taiwanensis metacercariae was at its peak in November at 36% (36/100) and the lowest in July at 15% (15/100). The co-infection of metacercariae of C. sinensis and M. taiwanensis was the most common and reached a peak in October, and their infection rate was higher in autumn than in summer. The peak of infection intensity of metacercariae for C. sinensis, M. orientalis, and M. taiwanensis were different: C. sinensis was 24/g in September, M. orientalis was 7/g in October, and M. taiwanensis was 10/g in November. From the above results, it was confirmed that three species of trematodes metacercaria played an important role in infection of second intermediate hosts in Qiqihar region. Studying the morphological characteristics and sequencing the ITS2 gene for a phylogenetic tree of them will be useful for future molecular evolution, biology, and ecology of trematode metacercariae.
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Affiliation(s)
- Fengyu Zhang
- Department of Clinical Laboratory, Suining Central Hospital, Suining, China
- School of Medical Technology, Qiqihar Medical University, Qiqihar, China
| | - Jianke Li
- School of Medical Technology, Qiqihar Medical University, Qiqihar, China
| | - Shaocheng Zhang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chengdu Medical College (Nuclear Industry 416 Hospital), Chengdu, China
- School of Clinical Medicine, Chengdu Medical College, Chengdu, China
| | - Ting Chen
- Department of Pathology, Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region, Chengdu, China
| | - Hao Zhang
- School of Medical Technology, Qiqihar Medical University, Qiqihar, China
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Solodovnik DA, Tatonova YV, Besprozvannykh VV. Morpho-Molecular Features and Phylogenetic Relationships of Metorchis butoridi Oschmarin, 1963 (Trematoda: Opisthorchiidae) from East Asia. Animals (Basel) 2023; 14:124. [PMID: 38200855 PMCID: PMC10778362 DOI: 10.3390/ani14010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
Adult trematodes of the genus Metorchis were found in the gallbladders of ducklings that had been experimentally fed freshwater fishes of the genera Rhynchocypris and Rhodeus that were naturally infected by Metorchis metacercariae. Some of the trematodes were identified as Metorchis ussuriensis, whose morphology of developmental stages and molecular data had previously been described in detail. The other trematodes were confirmed as species Metorchis butoridi on the basis of morphological features: subterminal oral sucker, vitelline follicles with interrupted bands, and rosette-shaped testes. An analysis of phylogenetic relationships within Opisthorchiidae using nuclear and mitochondrial markers confirmed that the obtained trematodes were actually from the genus Metorchis. The morphological and molecular features indicated that a number of trematodes found in East Asia and described as Metorchis orientalis belong to M. butoridi. Also, the M. orientalis individuals from Europe are, in fact, representatives of another Metorchis species.
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Affiliation(s)
- Daria Andreevna Solodovnik
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Pr-t 100-Letiya Vladivostoka 159a, 690022 Vladivostok, Russia; (Y.V.T.); (V.V.B.)
| | - Yulia Viktorovna Tatonova
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Pr-t 100-Letiya Vladivostoka 159a, 690022 Vladivostok, Russia; (Y.V.T.); (V.V.B.)
- Institute of Life Sciences and Biomedicine, FEFU Campus, Far Eastern Federal University, 10 Ajax Bay, Russky Island, 690922 Vladivostok, Russia
| | - Vladimir Vladimirovich Besprozvannykh
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Pr-t 100-Letiya Vladivostoka 159a, 690022 Vladivostok, Russia; (Y.V.T.); (V.V.B.)
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Guilder J, Copp GH, Thrush MA, Stinton N, Murphy D, Murray J, Tidbury HJ. Threats to UK freshwaters under climate change: Commonly traded aquatic ornamental species and their potential pathogens and parasites. NEOBIOTA 2022. [DOI: 10.3897/neobiota.76.80215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aquatic ornamental industry, whilst providing socio-economic benefits, is a known introduction pathway for non-native species, which if invasive, can cause direct impacts to native species and ecosystems and also drive disease emergence by extending the geographic range of associated parasites and pathogens and by facilitating host-switching, spillover and spill-back. Although current UK temperatures are typically below those necessary for the survival and establishment of commonly-traded tropical, and some sub-tropical, non-native ornamental species, the higher water temperatures predicted under climate-change scenarios are likely to increase the probability of survival and establishment. Our study aimed primarily to identify which of the commonly-traded non-native ornamental aquatic species (fish and invertebrates), and their pathogens and parasites, are likely to benefit in terms of survival and establishment in UK waters under predicted future climate conditions. Out of 233 ornamental species identified as traded in the UK, 24 were screened, via literature search, for potential parasites and pathogens (PPPs) due to their increased risk of survival and establishment under climate change. We found a total of 155 PPPs, the majority of which were platyhelminths, viruses and bacteria. While many of the identified PPPs were already known to occur in UK waters, PPPs currently absent from UK waters and with zoonotic potential were also identified. Results are discussed in the context of understanding potential impact, in addition to provision of evidence to inform risk assessment and mitigation approaches.
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Wang Y, Wang X, Gong P, Yu Y, Zhang N, Ren Y, Ma Y, Zhao Z, Zhang X, Li X, Li J. Prevalence of fish-borne zoonotic trematode infection in Jilin Province, China. Int J Parasitol Parasites Wildl 2022; 18:52-60. [PMID: 35492575 PMCID: PMC9048158 DOI: 10.1016/j.ijppaw.2022.04.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 01/25/2023]
Abstract
Fish-borne zoonotic trematodes (FZTs) are the most serious food-borne parasites in Asia and have become a burden to public health and a new challenge in food safety. In Jilin Province, China, the prevalence of FZTs in intermediate and definitive hosts has not been extensively explored. In the present study, we investigated the prevalence of FZTs in Jilin Province, China. From July to November 2020, a total of 132 freshwater snails (the first intermediate host of FZTs), 4122 wild freshwater fishes (the second intermediate host of FZTs) and 143 fecal samples from canines, ducks and swine (the definitive host of FZTs) were collected from the Yitong River basin of Jilin Province. FZT species were identified by morphological observation combined with internal transcribed spacer (ITS) sequence analysis. The prevalence of FZTs was then calculated. The results showed that the prevailing species of FZTs in Jilin Province, China, were Clonorchis sinensis, Metorchis orientalis and Echinochasmus japonicus. The total prevalence of FZTs was 29.74% (1226/4122) in fish, the total infection rates were 2.27% (3/132) in snails, 75.00% (21/28) in canines and 37.18% (29/78) in ducks. The coinfection rates of the two trematodes were 13.39% (552/4122) in fish, 35.71% (10/28) in canines and 7.69% (6/78) in ducks. The coinfection rate of the three flukes was 2.60% (107/4122) in fish. Nine of the 12 fish species examined were infected with FZT metacercariae. sinensis, M. orientalis and E. japonicus were reported in Jilin province of China. The prevalence of FZTs in freshwater fish were 29.74% (1226/4122). Four fish species were identified as new second intermediate hosts of E. japonicus.
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Affiliation(s)
- Yuru Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Yanhui Yu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Yanyan Ren
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Yeting Ma
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Zhiteng Zhao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xin Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Jianhua Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
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Parasites of Selected Freshwater Snails in the Eastern Murray Darling Basin, Australia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127236. [PMID: 35742485 PMCID: PMC9223292 DOI: 10.3390/ijerph19127236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 02/04/2023]
Abstract
Aquatic snails serve an important role in the ecosystem. They also play an essential role in the life cycle of many parasites as hosts and may pose risks to animal and human health. In Australia, the role of snails in the transmission of parasites of livestock is well studied. However, despite the country’s unique biodiversity and wildlife, little is known about the role of snails in the transmission and survival of parasites in other ecosystems, including aquatic and aquaculture systems. This study aimed to determine the occurrence of parasites in freshwater snails in the eastern Murray Darling Basin. A total of 275 snails were collected from various localities, including aquaculture fishery ponds and natural creeks during the summer and autumn months in the southern hemisphere. Three different species of freshwater snails, all common to the area, were found, including Bullastra lessoni (n = 11), Isidorella hainesii (n = 157), and Haitia acuta (n = 107), of which 9.1%, 1.3%, and 4.7%, respectively, were found to be harboring various developmental stages of Trematoda. No other parasite was found in the examined snails. Parasites were identified as Choanocotyle hobbsi, Plagiorchis sp. and Petasiger sp. based on the sequences of their ITS2, 18S, and 28S ribosomal DNA region. Herein, we report a native parasite Choanocotyle hobbsi in an introduced snail, Haitia acuta, from both natural and aquaculture ponds. As there are no genetic sequences for adult specimens of Petasiger spp. and Plagiorchis spp. collected in Australia for comparison, whether the specimens collected in this study are the larval stage of one of the previously described species or are a new, undescribed species cannot yet be determined. Our results also suggest snails collected from aquaculture ponds may be infected with considerably more parasites.
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Oh CS, Seo M, Lee HJ, Kim MJ, Lim DS, Shin DH. Genetic Analysis of Ancient Clonorchis sinensis Eggs Attained from Goryeong Mummy of Joseon Dynasty Period. J Parasitol 2022; 108:70-78. [DOI: 10.1645/21-49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Chang Seok Oh
- Department of Mortuary Science, College of Bio-convergence, Eulji University, 553, Sanseong-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13135, Korea
| | - Min Seo
- Department of Parasitology, Dankook University College of Medicine, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31116, Korea
| | - Hye Jin Lee
- Ministry of National Defense Agency for KIA Recovery & Identification, 250, Hyeonchung-ro, Dongjak-gu, Seoul 06984, Korea
| | - Myeung Ju Kim
- Department of Anatomy, Dankook University College of Medicine, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31116, Korea
| | - Do-Seon Lim
- Department of Dental Hygiene, College of Health Science, Eulji University, 553, Sanseong-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13135, Korea
| | - Dong Hoon Shin
- Department of Anatomy and Cell Biology, Seoul National University College of Medicine, 103, Daehak-ro, Chongno-gu, Seoul 03080, Korea
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Gao JF, Lv QB, Mao RF, Sun YY, Chen YY, Qiu YY, Chang QC, Wang CR. Integrative Transcriptomics and Proteomics Analyses to Reveal the Developmental Regulation of Metorchis orientalis: A Neglected Trematode With Potential Carcinogenic Implications. Front Cell Infect Microbiol 2021; 11:783662. [PMID: 34926326 PMCID: PMC8674872 DOI: 10.3389/fcimb.2021.783662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/16/2021] [Indexed: 11/24/2022] Open
Abstract
Metorchis orientalis is a neglected zoonotic parasite of the gallbladder and bile duct of poultry, mammals, and humans. It has been widely reported in Asian, including China, Japanese, and Korea, where it is a potential threat to public health. Despite its significance as an animal and human pathogen, there are few published transcriptomic and proteomics data available. Transcriptome Illumina RNA sequencing and label-free protein quantification were performed to compare the gene and protein expression of adult and metacercariae-stage M. orientalis, resulting in 100,234 unigenes and 3,530 proteins. Of these, 13,823 differentially expressed genes and 1,445 differentially expressed proteins were identified in adult versus metacercariae. In total, 570 genes were differentially expressed consistent with the mRNA and protein level in the adult versus metacercariae stage. Differential gene transcription analyses revealed 34,228 genes to be expressed in both stages, whereas 66,006 genes showed stage-specific expression. Compared with adults, the metacercariae stage was highly transcriptional. GO and KEGG analyses based on transcriptome and proteome revealed numerous up-regulated genes in adult M. orientalis related to microtubule-based processes, microtubule motor activity, and nucleocytoplasmic transport. The up-regulated genes in metacercariae M. orientalis were mainly related to transmembrane receptor protein serine/threonine kinase activity, transmembrane receptor protein serine/threonine kinase signaling pathway. Transcriptome and proteome comparative analyses showed numerous up-regulated genes in adult stage were mainly enriched in actin filament capping, spectrin, and glucose metabolic process, while up-regulated genes in metacercariae stage were mainly related to cilium assembly, cilium movement, and motile cilium. These results highlight changes in protein and gene functions during the development of metacercariae into adults, and provided evidence for the mechanisms involved in morphological and metabolic changes at both the protein and gene levels. Interestingly, many genes had been proved associated with liver fibrosis and carcinogenic factors were identified highly expressed in adult M. orientalis, which suggests that M. orientalis is a neglected trematode with potential carcinogenic implications. These data provide attractive targets for the development of therapeutic or diagnostic interventions for controlling M. orientalis.
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Affiliation(s)
- Jun-Feng Gao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Qing-Bo Lv
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Rui-Feng Mao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yun-Yi Sun
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Ying-Yu Chen
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yang-Yuan Qiu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Qiao-Cheng Chang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Chun-Ren Wang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
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Duan Y, Al-Jubury A, Kania PW, Buchmann K. Trematode diversity reflecting the community structure of Danish freshwater systems: molecular clues. Parasit Vectors 2021; 14:43. [PMID: 33436070 PMCID: PMC7805065 DOI: 10.1186/s13071-020-04536-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
Background Digenean trematodes are parasitic platyhelminths that use several hosts in their life cycles and are thereby embedded in various ecosystems affected by local environmental conditions. Their presence in a habitat will reflect the presence of different host species and, as such, they can serve as ecological indicators. Only limited information on the occurrence of trematodes and their link to other trophic levels in the Danish freshwater ecosystems is currently available.Therefore, the main aim of the present study was to increase our knowledge in this field. Methods Snails were sampled from 21 freshwater lakes in Denmark, following which shedding procedures were performed, cercariae were recoved and the released parasites were identified using molecular tools (PCR and sequencing). Results A total of 5657 snail hosts belonging to ten species were identified, revealing a highly diverse parasite fauna comprising 22 trematode species. The overall trematode prevalence was 12.6%, but large variations occurred between host species. The snail host Lymnaea stagnalis showed the highest prevalence and also exhibited the highest diversity, accounting for 47.6% of the species richness. Conclusions This survey contributes updated information on parasite–host relations and compatibility and may assist in describing the ecological structure of the investigated Danish freshwater ecosystems. ![]()
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Affiliation(s)
- Yajiao Duan
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Via Stigbøjlen 7, 1870, Frederiksberg C, Copenhagen, Denmark.
| | - Azmi Al-Jubury
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Via Stigbøjlen 7, 1870, Frederiksberg C, Copenhagen, Denmark
| | - Per Walter Kania
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Via Stigbøjlen 7, 1870, Frederiksberg C, Copenhagen, Denmark
| | - Kurt Buchmann
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Via Stigbøjlen 7, 1870, Frederiksberg C, Copenhagen, Denmark
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The selectivity for the second intermediate host (fish) of Clonorchis sinensis in the Jialing River basin, China—from the perspective of fish ecological viewpoint. Biologia (Bratisl) 2021. [DOI: 10.2478/s11756-020-00502-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wang Y, Li X, Sun Q, Gong P, Zhang N, Zhang X, Wang X, Li G, Li J. First case report of Metorchis orientalis from Black Swan. INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2020; 13:7-12. [PMID: 32775195 PMCID: PMC7398936 DOI: 10.1016/j.ijppaw.2020.07.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 12/03/2022]
Abstract
Metorchis orientalis belongs to the genus Metorchis of Opisthorchiidae, which mainly parasitizes in liver and bile ducts of waterfowl, causing liver dysfunction of the host. It has been reported that M. orientalis also infects humans. As a natural species in Australia and a popular ornamental animal, Black Swan (Cygnus atratus) has been imported into many countries. At present there has been no report of M. orientalis infection in Black Swan. In the present study M. orientalis infection in Black Swan was identified by a combination of different techniques, including morphological observation and molecular analysis. M. orientalis adults were found in the gallbladder and bile duct of a three-year-old female Black Swan, which was further confirmed by internal transcribed spacer (ITS) sequence analysis. In addition, the intermediate and definitive hosts of M. orientalis from the ‘Qing’ lake (a man-made lake in Changchun, China) that Black Swan lived were investigated and the infection route was preliminarily determined. Parafossarulus striatulus functioned as the first intermediate host which contained M. orientalis DNA, and fishes such as Pseudorasbora parva and Rhodeinae served as the second intermediate hosts with M. orientalis metacercariae in the fish flesh. M. orientalis eggs were found in the feces of three other Swans and six ducks that lived in the ‘Qing’ lake. This was the first reported case about M. orientalis infection of Black Swan. Our study described the course of the infection and provided new information about potential carriers and disseminators of M. orientalis. M. orientalis infection was firstly reported in Black Swan in China. P. striatulus served as the first intermediate host, P. parva and Rhodeinae as the second intermediate host. •Swans and ducks served as the definitive hosts.
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Affiliation(s)
- Yuru Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xin Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Qingsong Sun
- Jilin Agricultural Science and Technology University, 77 Hanlin Road, Jilin, 132101, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Guojiang Li
- Jilin Agricultural Science and Technology University, 77 Hanlin Road, Jilin, 132101, China
| | - Jianhua Li
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xian Road, Changchun, 130062, China.,Jilin Agricultural Science and Technology University, 77 Hanlin Road, Jilin, 132101, China
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Labony SS, Alim MA, Hasan MM, Hossain MS, Islam A, Alam MZ, Tsuji N, Anisuzzaman. Fish-borne trematode infections in wild fishes in Bangladesh. Pathog Glob Health 2020; 114:91-98. [PMID: 32054421 DOI: 10.1080/20477724.2020.1727217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Fish-borne liver and intestinal flukes are helminth pathogens that have a negative impact on public health worldwide. We herein investigated the status of infection by the metacercariae (MC) of fish-borne trematodes (FBTs) in randomly selected freshwater wild fishes. Five species of fishes were collected and digested artificially using digestion fluid to recover MC. All fish species, namely, ticto barb (Puntius ticto) (14/16, 87.5%), banded gourami (Colisa fasciata) (8/12, 66.7%), freshwater garfish (Xenentodon cancila) (9/14, 64.3%), flying barb (Esomus danricus) (5/12, 41.7%), and reba carp (Cirrhinus reba) (7/11, 63.7%), were infected with FBTs. The overall infection rate was 66.2% and the mean intensity was 748.3 ± 2947.5 MC/100 g of fishes. The loads of MC in ticto barb, reba carp, freshwater garfish, banded gourami, and flying barb per 100 g of fishes were 1978.8 ± 5053.7, 268.3 ± 440.7, 140 ± 105.4, 134.3 ± 109.2, and 117.6 ± 102.3, respectively. The infection rate was significantly higher (P < 0.05) in the body (55.4%) than in the head (40%) of fishes. Morphological and morphometrical analyzes identified the MC of Clonorchis spp., Opisthorchis spp., Metorchis spp., Metagonimus spp., and Echinostoma spp. Collectively, the present results suggest that wild freshwater fishes are important intermediate hosts for FBTs, and play a critical role in the transmission cycle of these parasites in Bangladesh. The results also indicate that people of the country are at risk of these infections.
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Affiliation(s)
- Sharmin S Labony
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - M Abdul Alim
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Muhammad Mehedi Hasan
- Department of Fisheries Technology, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Md Shahadat Hossain
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Ausraful Islam
- Program for Emerging Infections, Infectious Diseases Division, icddr,b, Dhaka, Bangladesh
| | - Mohammad Zahangir Alam
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Naotoshi Tsuji
- Department of Parasitology and Tropical Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Anisuzzaman
- Department of Parasitology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Qiu YY, Gao Y, Li Y, Ma XX, Lv QB, Hu Y, Qiu HY, Chang QC, Wang CR. Comparative analyses of complete ribosomal DNA sequences of Clonorchis sinensis and Metorchis orientalis: IGS sequences may provide a novel genetic marker for intraspecific variation. INFECTION GENETICS AND EVOLUTION 2019; 78:104125. [PMID: 31770595 DOI: 10.1016/j.meegid.2019.104125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/07/2019] [Accepted: 11/21/2019] [Indexed: 11/17/2022]
Abstract
Both Clonorchis sinensis and Metorchis orientalis are the fish-borne zoonotic trematodes, and have a wide distribution of southeastern Asia, especially in China. Due to the similar morphology, life cycle, and parasitic positions are difficult to differentiate between both metacercariae. In the present study, the complete rDNA sequences of five C. sinensis and five M. orientalis were obtained and compared for the first time. And the IGS rDNA sequences were tested as a genetic marker. The results showed complete rDNA lengths of C. sinensis were range from 8049 bp to 8391 bp, including 1991 bp, 1116 bp, 3854 bp, and 1088-1430 bp belonging to 18S, ITS, 28S and IGS, respectively. And the complete rDNA lengths of M. orientalis were range from 7881 bp to 9355 bp, including 1991 bp, 1077 bp, 3856 bp, and 957-2431 bp belonging to 18S, ITS, 28S and IGS, respectively. Comparative analyses reveal length difference main in IGS, which has higher intraspecific and interspecific variations than other ribosomal regions. Forty four repeat (forward and inverted) sequences were found in the complete rDNAs of C. sinensis and M. orientalis. The phylogenetic analyses showed that the sequences of ITS1, ITS2, 18S and 28S could be used as different level genetic markers. In IGS phylogenetic tree, Opisthorchiidae, Paramphistomidae, Dicrocoeliidae, and Schistosomatidae formed monophyletic groups, and the same length sequences were clustered together in the same species. These findings of the present study provide the new molecular data for studying the complete rDNA of C. sinensis and M. orientalis, and indicate IGS sequences may used as a novel genetic marker for studying intraspecific variation in trematodes.
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Affiliation(s)
- Yang-Yuan Qiu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Yuan Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, PR China
| | - Ye Li
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Xiao-Xiao Ma
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Qing-Bo Lv
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Yang Hu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Hong-Yu Qiu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Qiao-Cheng Chang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Chun-Ren Wang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China.
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13
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Zhu GL, Tang YY, Limpanont Y, Wu ZD, Li J, Lv ZY. Zoonotic parasites carried by invasive alien species in China. Infect Dis Poverty 2019; 8:2. [PMID: 30621776 PMCID: PMC6325848 DOI: 10.1186/s40249-018-0512-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/18/2018] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The invasive alien species may lead to great environmental and economic crisis due to its strong capability of occupying the biological niche of native species and altering the ecosystem of the invaded area. However, its potential to serve as the vectors of some specific zoonotic pathogens, especially parasites, has been neglected. Thus, the damage that it may cause has been hugely underestimated in this aspect, which is actually an important public health problem. This paper aims to discuss the current status of zoonotic parasites carried by invasive alien species in China. MAIN BODY This review summarizes the reported zoonotic parasites carried by invasive alien species in China based on the Database of Invasive Alien Species in China. We summarize their prevalence, threat to human health, related reported cases, and the roles of invasive alien species in the life cycle of these parasites, and the invasion history of some invasive alien species. Furthermore, we sum up the current state of prevention and control of invasive alien species in China, and discuss about the urgency and several feasible strategies for the prevention and control of these zoonoses under the background of booming international communications and inevitable globalization. CONCLUSIONS Information of the zoonotic parasites carried by invasive alien species neither in China or worldwide, especially related case reports, is limited due to a long-time neglection and lack of monitoring. The underestimation of their damage requires more attention to the monitoring and control and compulsory measures should be taken to control the invasive alien species carrying zoonotic parasites.
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Affiliation(s)
- Guang-Li Zhu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080 China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, 510080 China
- Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080 China
| | - Yi-Yang Tang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080 China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, 510080 China
- Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080 China
| | - Yanin Limpanont
- Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400 Thailand
| | - Zhong-Dao Wu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080 China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, 510080 China
- Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080 China
| | - Jian Li
- Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000 Guangdong China
| | - Zhi-Yue Lv
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080 China
- Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000 Guangdong China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, 510080 China
- Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, 510080 China
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14
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Gao JF, Gao Y, Qiu JH, Chang QC, Zhang Y, Fang M, Wang CR. De novo assembly and functional annotations of the transcriptome of Metorchis orientalis (trematoda: Opisthorchiidae). Exp Parasitol 2017; 184:90-96. [PMID: 29225048 DOI: 10.1016/j.exppara.2017.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/25/2017] [Accepted: 12/03/2017] [Indexed: 01/15/2023]
Abstract
Metorchis orientalis is a neglected zoonotic parasite, living in the gallbladder and bile duct of poultry and some mammals as well as humans. In spite of its economic and medical importance, the information known about the transcriptome and genome of M. orientalis is limited. In this study, we performed de novo sequencing, transcriptome assembly and functional annotations of the adult M. orientalis, obtained about 77.4 million high-quality clean reads, among which the length of the transcript contigs ranged from 100 to 11,249 nt with mean length of 373 nt and N50 length of 919 nt. We then assembled 31,943 unigenes, of which 20,009 (62.6%) were annotated by BLASTn and BLASTx searches against the available database. Among these unigenes, 19,795 (62.0%), 3407 (10.7%), 10,620 (33.2%) of them had significant similarity in the NR, NT and Swiss-Prot databases, respectively; 5744 (18.0%) and 4678 (14.6%) unigenes were assigned to GO and COG, respectively; and 9099 (28.5%) unigenes were identified and mapped onto 256 pathways in the KEGG Pathway database. Furthermore, we found that 98 (1.08%) unigenes were related to bile secretion and 5 (0.05%) to primary bile acid biosynthesis pathways category. The characterization of these transcriptomic data has implications for the better understanding of the biology of M. orientalis, and will facilitate the development of intervention agents for this and other pathogenic flukes of human and animal health significance.
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Affiliation(s)
- Jun-Feng Gao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China; Department of Parasitology, Heilongjiang Institute of Veterinary Science, Qiqihar, Heilongjiang Province, PR China
| | - Yuan Gao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Jian-Hua Qiu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Qiao-Cheng Chang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Yan Zhang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China
| | - Ming Fang
- College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China.
| | - Chun-Ren Wang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China; College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, PR China.
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