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Panich W, Jaruboonyakorn P, Raksaman A, Tejangkura T, Chontananarth T. Development and utilization of a visual loop-mediated isothermal amplification coupled with a lateral flow dipstick (LAMP-LFD) assay for rapid detection of Echinostomatidae metacercaria in edible snail samples. Int J Food Microbiol 2024; 418:110732. [PMID: 38728973 DOI: 10.1016/j.ijfoodmicro.2024.110732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024]
Abstract
Trematodes belonging to the family Echinostomatidae are food-borne parasites which cause echinostomiasis in animals and humans. This is a global public health issue, particularly in East and Southeast Asia. A method to detect the infective stage of Echinostomatidae species is required to prevent transmission to humans. In this study, a loop-mediated isothermal amplification coupled with a lateral flow dipstick (LAMP-LFD) assay was developed for visual detection of the metacercarial stage in edible snails of the genus Filopaludina from local markets in Thailand. The LAMP-LFD method can be performed within 70 min at a consistent temperature of 66 °C, and the results can be interpreted with the naked eye. The detection limits of the assay using Echinostoma mekongi, E. macrorchis, E. miyagawai and Hypoderaeum conoideum genomic DNA were equal between the four species at 50 pg/μL. A specificity evaluation demonstrated that the LAMP-LFD assay had no cross-reaction with another parasite (Thapariella species) or with the snail host species (Filopaludina martensi martensi, F. sumatrensis speciosa, and F. s. polygramma). Clinical test assessments were compared to microscopic examination in 110 edible snail samples. The clinical sensitivity and specificity of the tests were 84.62 % and 100 %, respectively, with a strong level of agreement based on the kappa statistic and the results of both methods were not significantly different (p > 0.05) per McNemar's test. The test successfully developed in this study may be useful for the detection of the metacercarial stage in edible snails for epidemiological investigations, control, surveillance, and to prevent future echinostomiasis health issues.
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Affiliation(s)
- Wasin Panich
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Phonkawin Jaruboonyakorn
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Awika Raksaman
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Thanawan Tejangkura
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Thapana Chontananarth
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand.
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Ray M, Trinidad M, Francis N, Shamsi S. Characterization of Echinostoma spp. (Trematoda: Echinostomatidae Looss, 1899) infecting ducks in south-eastern Australia. Int J Food Microbiol 2024; 421:110754. [PMID: 38917490 DOI: 10.1016/j.ijfoodmicro.2024.110754] [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: 03/10/2024] [Revised: 05/07/2024] [Accepted: 05/19/2024] [Indexed: 06/27/2024]
Abstract
Waterbirds, are one of the popular game animals and are of significant relevance to parasite spread due to their ability to fly and migrate great distances in relatively short periods of time. In Australia, however, the knowledge of parasites infecting native waterbirds is lacking with some of the last reports occurring over 50 years ago. The study aimed to characterise Echinostoma spp. infecting wild native Australian ducks found in the southern regions of the Murray Darling Basin (MDB). Ducks (n = 98) were collected from southern New South Wales within the MDB catchment. Three different species of native ducks were found including Anas superciliosa (n = 37), Anas gracilis (n = 47) and Chenonetta jubata (n = 14), of which 4.3 %, 2.7 % and 7.1 %, respectively, were found to be infected with adult stages Echinostoma spp. Examination of the parasites revealed the presence of two morphotypes. The 18S, 28S and ITS rRNA as well as the mitochondrial nad1 genes were sequenced for representative isolates of the two morphotypes. These sequences were then compared with existing sequences of Echinostoma spp. available in the GenBank. Phylogenetic analysis based on the ITS region indicated that the two morphotypes were genetically distinct. Although there are comparable sequences of Echinostoma spp. in Australia these morphotypes appear to be genetically distinct. Based on their distinct morphology and genetics we suggest that these two morphotypes are previously undescribed in Australia. This study sheds light on the presence of Echinostoma parasites in native Australian waterbirds and highlights the need for further research to better understand the diversity and prevalence of these parasites in the region.
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Affiliation(s)
- Madeleine Ray
- Gulbali Institute, School of Agriculture, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga 2678, Australia.
| | - Michael Trinidad
- Gulbali Institute, School of Agriculture, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga 2678, Australia
| | - Nidhish Francis
- Gulbali Institute, School of Agriculture, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga 2678, Australia
| | - Shokoofeh Shamsi
- Gulbali Institute, School of Agriculture, Environmental and Veterinary Sciences, Charles Sturt University, Wagga Wagga 2678, Australia
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Toledo R, Cociancic P, Fiallos E, Esteban JG, Muñoz-Antoli C. Immunology and pathology of echinostomes and other intestinal trematodes. ADVANCES IN PARASITOLOGY 2024; 124:1-55. [PMID: 38754926 DOI: 10.1016/bs.apar.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Intestinal trematodes constitute a major group of helminths that parasitize humans and animals with relevant morbidity and mortality. Despite the importance of the intestinal trematodes in medical and veterinary sciences, immunology and pathology of these helminth infections have been neglected for years. Apart from the work focused on the members of the family Echnistomatidae, there are only very isolated and sporadic studies on the representatives of other families of digeneans, which makes a compilation of all these studies necessary. In the present review, the most salient literature on the immunology and pathology of intestinal trematodes in their definitive hosts in examined. Emphasis will be placed on members of the echinostomatidae family, since it is the group in which the most work has been carried out. However, we also review the information on selected species of the families Brachylaimidae, Diplostomidae, Gymnophallidae, and Heterophyidae. For most of these families, coverage is considered under the following headings: (i) Background; (ii) Pathology of the infection; (iii) Immunology of the infection; and (iv) Human infections.
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Affiliation(s)
- Rafael Toledo
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Valencia, Spain.
| | - Paola Cociancic
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Valencia, Spain
| | - Emma Fiallos
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Valencia, Spain
| | - J Guillermo Esteban
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Valencia, Spain
| | - Carla Muñoz-Antoli
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Valencia, Spain
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Le TH, Pham LTK, Van Quyen D, Nguyen KT, Doan HTT, Saijuntha W, Blair D. The ribosomal transcription units of five echinostomes and their taxonomic implications for the suborder Echinostomata (Trematoda: Platyhelminthes). Parasitol Res 2024; 123:103. [PMID: 38236312 DOI: 10.1007/s00436-023-08110-z] [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: 10/27/2023] [Accepted: 12/28/2023] [Indexed: 01/19/2024]
Abstract
Five newly obtained nuclear ribosomal transcription unit (rTU) sequences from Echinostomatidae and Echinochasmidae are presented. The inter- and intrafamilial relationships of these and other families in the suborder Echinostomata are also analyzed. The sequences obtained are the complete rTU of Artyfechinostomum malayanum (9,499 bp), the near-complete rTU of Hypoderaeum conoideum (8,076 bp), and the coding regions (from 5'-terminus of 18S to 3'-terminus of 28S rRNA gene) in Echinostoma revolutum (6,856 bp), Echinostoma miyagawai (6,854 bp), and Echinochasmus japonicus (7,150 bp). Except for the longer first internal transcribed spacer (ITS1) in Echinochasmus japonicus, all genes and spacers were almost identical in length. Comprehensive maximum-likelihood phylogenies were constructed using the PhyML software package. The datasets were either the concatenated 28S + 18S rDNA sequences (5.7-5.8 kb) from 60 complete rTUs of 19 families or complete 28S sequences only (about 3.8-3.9 kb) from 70 strains or species of 22 families. The phylogenetic trees confirmed Echinostomatoidea as monophyletic. Furthermore, a detailed phylogeny constructed from alignments of 169 28S D1-D3 rDNA sequences (1.1-1.3 kb) from 98 species of 50 genera of 10 families, including 154 echinostomatoid sequences (85 species/42 genera), clearly indicated known generic relationships within Echinostomatidae and Echinochasmidae and relationships of families within Echinostomata and several other suborders. Within Echinostomatidae, Echinostoma, Artyfechinostomum, and Hypoderaeum appeared as monophyletic, while Echinochasmus (Echinochasmidae) was polyphyletic. The Echinochasmidae are a sister group to the Psilostomidae. The datasets provided here will be useful for taxonomic reappraisal as well as studies of evolutionary and population genetics in the superfamily Echinostomatoidea, the sole superfamily in the suborder Echinostomata.
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Affiliation(s)
- Thanh Hoa Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam.
| | - Linh Thi Khanh Pham
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Dong Van Quyen
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
- Molecular Microbiology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Khue Thi Nguyen
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Huong Thi Thanh Doan
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | | | - David Blair
- College of Science and Engineering, James Cook University, Townsville, Queensland, 4811, Australia
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Pathak CR, Luitel H, Utaaker KS, Khanal P. One-health approach on the future application of snails: a focus on snail-transmitted parasitic diseases. Parasitol Res 2023; 123:28. [PMID: 38082123 PMCID: PMC10713800 DOI: 10.1007/s00436-023-08021-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023]
Abstract
Snails are fascinating molluscs with unique morphological and physiological adaptive features to cope with various environments. They have traditionally been utilized as food and feed sources in many regions of the world. The future exploitation of alternative nutrient sources, like snails, is likely to increase further. Snails, however, also serve as an intermediate host for several zoonotic parasites. A category of parasitic infections, known as snail-transmitted parasitic diseases (STPDs), is harmful to humans and animals and is mainly driven by various trematodes, cestodes, and nematodes. The environment plays a crucial role in transmitting these parasites, as suitable habitats and conditions can facilitate their growth and proliferation in snails. In light of diverse environmental settings and biologically categorized snail species, this review evaluates the dynamics of significant STPDs of zoological importance. Additionally, possible diagnostic approaches for the prevention of STPDs are highlighted. One-health measures must be considered when employing snails as an alternative food or feed source to ensure the safety of snail-based products and prevent any adverse effects on humans, animals, and the environment.
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Affiliation(s)
- Chet Raj Pathak
- Faculty of Animal Science, Veterinary Science and Fisheries, Agriculture and Forestry University, Rampur, Nepal.
- Animal Science, Production and Welfare Division, Faculty of Biosciences and Aquaculture, Nord University, Skolegata 22, 7713, Steinkjer, Norway.
| | - Himal Luitel
- Center for Biotechnology, Agriculture and Forestry University, Rampur, Nepal
| | - Kjersti Selstad Utaaker
- Animal Science, Production and Welfare Division, Faculty of Biosciences and Aquaculture, Nord University, Skolegata 22, 7713, Steinkjer, Norway
| | - Prabhat Khanal
- Animal Science, Production and Welfare Division, Faculty of Biosciences and Aquaculture, Nord University, Skolegata 22, 7713, Steinkjer, Norway.
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Suwancharoen C, Phuangsri C, Siriwechviriya P, Bunsong T, Japa O. Diversity of trematode cercariae among naturally infected lymnaeid snails from Phayao, Thailand. Parasitol Res 2023; 122:2691-2708. [PMID: 37698606 DOI: 10.1007/s00436-023-07971-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/05/2023] [Indexed: 09/13/2023]
Abstract
Lymnaeids are aquatic snails playing an important role in the transmission of many parasitic trematode species of veterinary and medical importance. In this study, we assessed the presence of cercarial flukes in naturally infected lymnaeid snails from Phayao province, Thailand, and determined the species diversity of both the intermediate snail hosts and parasite larvae. A total of 3,185 lymnaeid snails were collected from paddy fields at 31 sites in eight districts of Phayao province between October 2021 and December 2022. Larval fluke infection was assessed using the cercarial shedding method. The collected snails as well as emerging cercariae were identified at the species level via morphological and molecular methods. The sequences of snail internal transcribed spacer region 2 (ITS2) and cercarial 28S ribosomal RNA gene (28S rDNA) and cytochrome C oxidase1 (Cox1) were determined by PCR amplification and sequencing. Three species of lymnaeid snails were detected in this study, including Radix (Lymnaea) rubiginosa (Michelin, 1831), Radix (Lymnaea) swinhoei (Adams, 1866) and Austropeplea viridis (Quoy & Gaimard, 1832), of which R. rubiginosa was the most abundant, followed by A. viridis and R. swinhoei. The overall rate of trematode cercarial infection in the lymnaeid snails was 2.8% (90/3,185); the cercarial infection rate in R. rubiginosa and A. viridis was 3.5% (60/1,735) and 3.1% (30/981), respectively. No larval fluke infection was observed in the studied R. swinhoei (0/469). Nine morphotypes of cercariae were detected at 15 sites from four districts. The emerging cercariae were molecularly identified as Clinostomum sp., Aporocotylidae sp., Apharyngostrigea sp., Trichobilharzia sp., Apatemon sp., Pegosomum sp., Petasiger sp., Echinostoma revolutum and Plagiorchis sp. These findings emphasize the occurrence and diversity of trematode cercariae among naturally infected lymnaeid snails in Phayao province and could contribute to broadening our understanding of the host-parasite relationships between trematodes and their first intermediate hosts as well as developing effective interventions to control trematode parasitic diseases.
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Affiliation(s)
- Chittakun Suwancharoen
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Muang, Phayao, 56000, Thailand
| | - Chorpaka Phuangsri
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Muang, Phayao, 56000, Thailand
| | - Pannawich Siriwechviriya
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Muang, Phayao, 56000, Thailand
| | - Thanakon Bunsong
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Muang, Phayao, 56000, Thailand
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Ornampai Japa
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Muang, Phayao, 56000, Thailand.
- Scientific Instrument and Product Standard Quality Inspection Center, University of Phayao, Phayao, Thailand.
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Robinson MW, Sotillo J. Foodborne trematodes: old foes, new kids on the block and research perspectives for control and understanding host-parasite interactions. Parasitology 2022; 149:1257-1261. [PMID: 35734871 PMCID: PMC11010571 DOI: 10.1017/s0031182022000877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 11/06/2022]
Abstract
Foodborne trematodes (FBTs) have a worldwide distribution (with particular prevalence in south-east Asia) and are believed to infect almost 75 million people, with millions more living at risk of infection. Although mortality due to trematodiasis is low, these infections cause considerable morbidity and some species are associated with the development of cancer in hyperendemic regions. Despite this, FBTs are often side-lined in terms of research funding and have been dubbed neglected tropical diseases by the World Health Organisation. Thus, the aim of this special issue was to provide an update of our understanding of FBT infections, to shine a light on current work in the field and to highlight some research priorities for the future. With contributions from leading researchers, many from endemic regions, we review the major FBT species. In doing so we revisit some old foes, uncover emerging infections and discover how outbreaks are being dealt with as a result of new approaches to parasite control. We also report advances in our understanding of the interactions of FBTs with their mammalian hosts and uncover new interplay between trematodes and host microbiome components. We hope that this article collection will stimulate discussion and further research on the FBTs and help raise them from their neglected status.
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Affiliation(s)
- Mark W. Robinson
- School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, Northern Ireland, UK
| | - Javier Sotillo
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
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