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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Duong TY, Pham LTK, Le XTK, Nguyen NTT, Nor AM, Le TH. Mitophylogeny of Pangasiid Catfishes and its Taxonomic Implications for Pangasiidae and the Suborder Siluroidei. Zool Stud 2023; 62:e48. [PMID: 37965298 PMCID: PMC10641430 DOI: 10.6620/zs.2023.62-48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 07/24/2023] [Indexed: 11/16/2023]
Abstract
Pangasiidae (catfish order: Siluriformes) comprises 30 valid catfish species in four genera: Pangasius, Pangasianodon, Helicophagus, and Pseudolais. Their systematics are frequently revised due to the addition of newly described species. Although Pangasiidae is known to be a monophyletic family, the generic and phylogenetic relationships among the taxa are poorly resolved. This study characterized three newly obtained complete mitogenomes of Mekong River catfishes from Vietnam (Pangasius mekongensis, Pangasius krempfi, and Pangasianodon hypophthalmus), as well as the inter-and intrafamilial relationships of the Pangasiidae and catfish families in Siluroidei. The genomic features of their mitogenomes were similar to those of previously reported pangasiids, including all regulatory elements, extended terminal associated sequences (ETAS), and conserved sequence blocks (CSBs) (CSB-1, CSB-2, CSB-3, and CSBs, A to F) in the control region. A comprehensive phylogeny constructed from datasets of multiple 13 PCG sequences from 117 complete mitogenomes of 32 recognized siluriform families established Pangasiidae as monophyletic and a sister group of Austroglanididae. The [Pangasiidae + Austroglanididae] + (Ictaluridae + Cranoglanididae) + Ariidae] clade is a sister to the "Big Africa" major clade of Siluriformes. Furthermore, both phylogenies constructed from the single barcodes (83 partial cox1 and 80 partial cytB, respectively) clearly indicate genus relationships within Pangasiidae. Pangasianodon was monophyletic and a sister to the (Pangasius + Helicophagus + Pseudolais) group. Within the genus Pangasius, P. mekongensis was placed as a sister taxon to P. pangasius. Pangasius sanitwongsei was found to be related to and grouped with Pangasianodon, but in single-gene phylogenies, it was assigned to the Pangasius + Helicophagus + Pseudolais group. The datasets in this study are useful for studying pangasiid systematics, taxonomy and evolution.
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Affiliation(s)
- Thuy Yen Duong
- College of Aquaculture and Fisheries, Can Tho University, 3/2 street, Can Tho City, Vietnam. E-mail: (Duong)
| | - 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. E-mail: (Le); (Pham); (Kim Le)
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Xuyen Thi Kim Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST). 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam. E-mail: (Le); (Pham); (Kim Le)
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ngoc Tran Thi Nguyen
- College of Aquaculture and Fisheries, Can Tho University, 3/2 street, Can Tho City, Vietnam. E-mail: (Duong)
| | - Azizah Mohd Nor
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia. E-mail: (Nor)
| | - 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. E-mail: (Le); (Pham); (Kim Le)
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Le XTK, Do RT, Doan HTT, Nguyen KT, Pham LTK, Le TH. Phylogenotyping of infectious bursal disease virus in Vietnam according to the newly unified genotypic classification scheme. Arch Virol 2023; 168:201. [PMID: 37402052 DOI: 10.1007/s00705-023-05830-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/02/2023] [Indexed: 07/05/2023]
Abstract
Since 1987, infectious bursal disease virus (IBDV) has circulated and evolved in Vietnam, but little is known about the genotypes present. IBDV samples were collected in 1987, 2001-2006, 2008, 2011, 2015-2019, and 2021 in 18 provinces. We conducted phylogenotyping analysis based on an alignment of 143 VP2-HVR (hypervariable region) sequences from 64 Vietnamese isolates (26 previous and 38 additional sequences and two vaccines, and alignment of 82 VP1 B-marker sequences, including one vaccine and four Vietnamese field strains. The analysis identified three A-genotypes, A1, A3, and A7, and two B-genotypes, B1 and B3, among the Vietnamese IBDV isolates. The lowest average evolutionary distance (8.6%) was seen between the A1 and A3 genotypes, and the highest (21.7%) was between A5 and A7, while there was a distance of 14% between B1 and B3 and 17% between B3 and B2. Unique signature residues were observed for genotypes A2, A3, A5, A6, and A8, which could be used for genotypic discrimination. A timeline statistical summary revealed that the A3-genotype predominated (79.8% presence) in Vietnam from 1987 to 2021 and that it remained the dominant IBDV genotype over the last five years (2016-2021). The current study contributes to a better understanding of the circulating genotypes and evolution of IBDV in Vietnam and worldwide.
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Affiliation(s)
- Xuyen Thi Kim Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Roan Thi Do
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology (GUST), 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
- Graduate University of Science and Technology (GUST), 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
- Graduate University of Science and Technology (GUST), 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
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - 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.
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam.
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Le TH, Nguyen KT, Pham LTK, Doan HTT, Roan DT, Le XTK, Agatsuma T, Blair D. Mitogenomic and nuclear ribosomal transcription unit datasets support the synonymy of Paragonimus iloktsuenensis and P. ohirai (Paragonimidae: Platyhelminthes). Parasitol Res 2023:10.1007/s00436-023-07854-y. [PMID: 37101088 DOI: 10.1007/s00436-023-07854-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/18/2023] [Indexed: 04/28/2023]
Abstract
The complete mitogenome (mtDNA) of nominal Paragonimus iloktsuenensis (Paragonimidae: Trematoda) and the nuclear ribosomal transcription unit (rTU) coding region (rTU*: from 5'-terminus of 18S to 3'-terminus of 28S rRNA gene, excluding the external spacer region) of this species and of P. ohirai were obtained and used to further support the previously suggested synonymy of these taxa in the P. ohirai complex. The complete mitogenome of P. iloktsuenensis was 14,827 bp long (GenBank: ON961029) and nearly identical to that of P. ohirai (14,818 bp; KX765277), with a 99.12% nucleotide identity. The rTU* was 7543 bp and 6932 bp in these two taxa, respectively. All genes and spacers in the rTU were identical in length, with exception of the first internal transcribed spacer, which contained multiple tandem repeat units (6.7 for P. iloktsuenensis and 5.7 for P. ohirai). There was near 100% identity for the rTU genes. The phylogenetic topology inferred from the mtDNA and from individual gene regions (partial cox1 of 387 bp and the ITS-2 of 282 bp - 285 bp) indicated a very close relationship consistent with synonymy of P. iloktsuenensis and P. ohirai. The datasets provided here will be useful for taxonomic reappraisal as well as studies of evolutionary and population genetics of the genus Paragonimus and family Paragonimidae.
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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.
- Graduate University of Science and Technology (GUST), 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
| | - 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
| | - 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
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Do Thi Roan
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Xuyen Thi Kim Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Takeshi Agatsuma
- Department of Environmental Health Sciences, Kochi Medical School, Kohasu, Oko-Cho 185-1, Nankoku, Kochi, 783-8505, Japan
| | - David Blair
- College of Science and Engineering, James Cook University, Townsville, QLD, 4811, Australia.
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Duong T, Nguyen NT, Tran DD, Le TH, Nor SAM. Multiple genetic lineages of anadromous migratory Mekong catfish Pangasius krempfi revealed by mtDNA control region and cytochrome b. Ecol Evol 2023; 13:e9845. [PMID: 36820247 PMCID: PMC9937891 DOI: 10.1002/ece3.9845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/20/2023] Open
Abstract
Population genetic structure of migratory fishes can reflect ecological and evolutionary processes. Pangasius krempfi is a critically important anadromous catfish in the Mekong River, and its migration pathways and genetic structure have attracted much interest. To investigate, we quantified the genetic diversity of this species using the control region (D-loop) and Cytochrome b (Cytb) of the mitochondrial genome. Fish were sampled (n = 91) along the Mekong tributaries from upstream to estuaries and coastal areas in the Mekong Delta and compared to three samples from Pakse (Laos). The D-loop haplotype (0.941 ± 0.014) and nucleotide diversity (0.0083 ± 0.0005) were high in all populations, but that of Cytb was low (0.331 ± 0.059 and 0.00063 ± 0.00011, respectively). No genetic difference was detected between populations, indicating strong gene flow and confirming a long migration distance for this species. Pangasius krempfi was not genetically structured according to geographical populations but was delineated into three haplogroups, suggesting multiple genetic lineages. The presence of haplogroups in each sampling location implies that migration downstream is random but parallel when the fish enter two river tributaries bifurcating from the main Mekong River. Individuals can also migrate along the coast, far from the estuaries, suggesting a longer migration path than previously reported, which is crucial for maintaining diverse genetic origin and migration pathways for P. krempfi.
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Affiliation(s)
- Thuy‐Yen Duong
- College of Aquaculture and FisheriesCan Tho UniversityCan Tho CityVietnam
| | | | - Dac Dinh Tran
- College of Aquaculture and FisheriesCan Tho UniversityCan Tho CityVietnam
| | - Thanh Hoa Le
- Immunology DepartmentInstitute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST)Ho Chi Minh CityVietnam
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST)Ho Chi Minh CityVietnam
| | - Siti Azizah Mohd Nor
- Institute of Marine BiotechnologyUniversiti Malaysia TerengganuTerengganuMalaysia
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Le TH, Nguyen KT, Pham LTK, Doan HTT, Agatsuma T, Blair D. The complete mitogenome of the Asian lung fluke Paragonimus skrjabini miyazakii and its implications for the family Paragonimidae (Trematoda: Platyhelminthes). Parasitology 2022; 149:1709-1719. [PMID: 36101009 PMCID: PMC11010541 DOI: 10.1017/s0031182022001184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/05/2022] [Accepted: 08/15/2022] [Indexed: 12/14/2022]
Abstract
The complete circular mitogenome of Paragonimus skrjabini miyazakii (Platyhelminthes: Paragonimidae) from Japan, obtained by PacBio long-read sequencing, was 17 591 bp and contained 12 protein-coding genes (PCGs), 2 mitoribosomal RNA and 22 transfer RNA genes. The atp8 gene was absent, and there was a 40 bp overlap between nad4L and nad4. The long non-coding region (4.3 kb) included distinct types of long and short repeat units. The pattern of base usage for PCGs and the mtDNA coding region overall in Asian and American Paragonimus species (P. s. miyazakii, P. heterotremus, P. ohirai and P. kellicotti) and the Indian form of P. westermani was T > G > A > C. On the other hand, East-Asian P. westermani used T > G > C > A. Five Asian and American Paragonimus species and P. westermani had TTT/Phe, TTG/Leu and GTT/Val as the most frequently used codons, whereas the least-used codons were different in each species and between regional forms of P. westermani. The phylogenetic tree reconstructed from a concatenated alignment of amino acids of 12 PCGs from 36 strains/26 species/5 families of trematodes confirmed that the Paragonimidae is monophyletic, with 100% nodal support. Paragonimus skrjabini miyazakii was resolved as a sister to P. heterotremus. The P. westermani clade was clearly separate from remaining congeners. The latter clade was comprised of 2 subclades, one of the East-Asian and the other of the Indian Type 1 samples. Additional mitogenomes in the Paragonimidae are needed for genomic characterization and are useful for diagnostics, identification and genetic/ phylogenetic/ epidemiological/ evolutionary studies of the Paragonimidae.
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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
- Graduate University of Science and Technology (GUST), 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
| | - 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
| | - 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
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Takeshi Agatsuma
- Department of Environmental Health Sciences, Kochi Medical School, Kohasu, Oko-cho 185-1, Nankoku, Kochi, 783-8505, Japan
| | - David Blair
- College of Marine and Environmental Sciences, James Cook University, Townsville, Queensland 4811, Australia
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Doan HTT, Do RT, Thao PTP, Le XTK, Nguyen KT, Hien NTT, Duc LM, Pham LTK, Le TH. Molecular genotypic analysis of porcine circovirus type 2 reveals the predominance of PCV2d in Vietnam (2018-2020) and the association between PCV2h, the recombinant forms, and Vietnamese vaccines. Arch Virol 2022; 167:2011-2026. [PMID: 35794492 DOI: 10.1007/s00705-022-05517-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 05/16/2022] [Indexed: 12/14/2022]
Abstract
We conducted nucleotide and amino acid sequence alignment and phylogenetic analysis of porcine circovirus ORF2 (Cap protein) from 17 PCV2-positive clinical samples from nine different northern Vietnamese provinces (Mar 2018-Nov 2020), four local vaccines, and 77 reference strains. We identified one PCV2a (1/17 = 5.9%), five PCV2b (5/17 = 29.9%), and 11 PCV2d (11/17 = 64.7%) isolates, while only PCV2d was detected in 2020. Timeline analysis indicated an increasing predominance of PCV2d nationwide (2018-2020). With strong nodal support (98% for nucleotides and 74% for amino acids), the phylogenetic tree topology revealed a distinct PCV2h clade including recombinant/intermediate strains and local vaccines. The Cap protein sequences from 11 PCV2d field strains had the 2d-genotype-typical motif 86SNPLSV91 in loop CD, the motif TGID in loop GH-HI, and the motif 230PLNPK234 in loop CT. The PCV2h isolates (and vaccines) had the 86SNPLSV91, SAID, and 230L(N/H)PK234 motifs. Selection pressure analysis indicated positive selection at seven sites: A68N in immunoreactive region (IRR)-A; 119G and 130V in IRR-B; and 167L, T190(A/S), 194D and 202F in IRR-C. We identified PCV2h as the genotype of the recombinant strains, which resulted from intergenotype recombination of PCV2a, PCV2b, and PCV2d. The current data provide new information about the diversity, distribution, and dominance of the PCV2 genotype in Vietnam.
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Affiliation(s)
- 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. .,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.
| | - Roan Thi Do
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Pham Thi Phuong Thao
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Xuyen Thi Kim Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), 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.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Thu Hien
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Luu Minh Duc
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), 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.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - 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. .,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.
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Pham LTK, Saijuntha W, Lawton SP, Le TH. Mitophylogenomics of the zoonotic fluke Echinostoma malayanum confirms it as a member of the genus Artyfechinostomum Lane, 1915 and illustrates the complexity of Echinostomatidae systematics. Parasitol Res 2022; 121:899-913. [PMID: 35142926 DOI: 10.1007/s00436-022-07449-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 12/04/2021] [Accepted: 01/25/2022] [Indexed: 10/19/2022]
Abstract
The complete mitochondrial genome (mitogenome or mtDNA) of the trematode Echinostoma malayanum Leiper, 1911 was fully determined and annotated. The circular mtDNA molecule comprised 12 protein-coding genes (PCGs) (cox1 - 3, cob, nad1 - 6, nad4L, atp6), two mitoribosomal RNAs (MRGs) (16S or rrnL and 12S or rrnS), and 22 transfer RNAs (tRNAs or trn), and a non-coding region (NCR) rich in long and short tandem repeats (5.5 LRUs/336 bp/each and 7.5 SRUs/207 bp/each). The atp8 gene is absent and the 3' end of nad4L overlaps the 5' end of nad4 by 40 bp. Special DHU-arm missing tRNAs for Serine were found for both tRNASer1(AGN) and tRNASer2(UCN). Codons of TTT (for phenylalanine), TTG (for leucine), and GTT (for valine) were the most, and CGC (for Arginine) was the least frequently used. A similar usage pattern was seen in base composition, AT and GC skewness for PCGs, MRGs, and mtDNA* (coding cox3 to nad5) in E. malayanum and Echinostomatidae. The nucleotide use is characterized by (T > G > A > C) for PCGs/mtDNA*, and by (T > G ≈ A > C) for MRGs. E. malayanum exhibited the lowest genetic distance (0.53%) to Artyfechinostomum sufrartyfex, relatively high to the Echinostoma congeners (13.20-13.99%), higher to Hypoderaeum conoideum (16.18%), and the highest to interfamilial Echinochasmidae (26.62%); Cyclocoelidae (30.24%); and Himasthlidae (25.36%). Topology indicated the monophyletic position between E. malayanum/A. sufrartyfex and the group of Echinostoma caproni, Echinostoma paraensei, Echinostoma miyagawai, and Echinostoma revolutum, rendering Hypoderaeum conoideum and unidentified Echinostoma species paraphyletic. The strictly closed genomic/taxonomic/phylogenetic features (including base composition, skewness, codon usage/bias, genetic distance, and topo-position) reinforced Echinostoma malayanum to retake its generic validity within the Artyfechinostomum genus.
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Affiliation(s)
- 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), Hanoi, Vietnam
| | - Weerachai Saijuntha
- Walai Rukhavej Botanical Research Institute (WRBRI), Biodiversity and Conservation Research Unit, Mahasarakham University, Kham Riang, 44150, Mahasarakham, Thailand
| | - Scott P Lawton
- Department of Veterinary and Animal Sciences, Northern Faculty, Scotland's Rural College, An Lóchran, 10 Inverness Campus, Inverness, IV2 5NA, UK
| | - 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. .,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
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9
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Doan HTT, Le XTK, Do RT, Nguyen KT, Le TH. Canine parvovirus type 2c in Vietnam continues to produce distinct descendants with new mutations restricted to Vietnamese variants. Arch Virol 2021; 166:1741-1749. [PMID: 33860842 DOI: 10.1007/s00705-021-05059-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 02/15/2021] [Indexed: 11/27/2022]
Abstract
Viral protein 2 (VP2) of canine parvovirus (CPV) exhibits a high degree of genetic and antigenic diversity. We analyzed 88 Vietnamese CPV-VP2 sequences (1755 bp), 34 from this study and 54 from previous studies, and discovered a new sublineage, "new var.", within the lineage CPV-2c-"new", characterized by the mutation 5G/447M, which is restricted to the Vietnamese isolates. These new mutants appear to have emerged in recent years, accounting for 65.5% of the total. With strong nodal support (98%), the distinct Vietnamese 2c-"new-var." sublineage (5G/426E/447M) was found to be separate from the 2c-"new" sublineage (5G/426E/447I) within the 2c-(Asia)/Asia-2c lineage. Amino acid changes in epitopes of VP2 might have led to the generation of subvariants and affected the antigenicity, immunogenicity, or virulence of the virus, resulting in vaccine failure worldwide.
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Affiliation(s)
- 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. .,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
| | - Xuyen Thi Kim Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Roan Thi Do
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, 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.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - 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. .,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
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10
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Le TH, Phan AL, Ty NM, Zhou D, Qiu J, Dan HK. Influences of copper-potassium ion exchange process on the optical bandgaps and spectroscopic properties of Cr 3+/Yb 3+ co-doped in lanthanum aluminosilicate glasses. RSC Adv 2021; 11:8917-8926. [PMID: 35423410 PMCID: PMC8695246 DOI: 10.1039/d0ra10831f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/17/2021] [Indexed: 11/21/2022] Open
Abstract
In this study, lanthanum aluminosilicate glasses with compositions of 45SiO2-20Al2O3-12.5LaF3-10BaF2-9K2O-1Cr2O3-2.5Yb2O3 (SALBK) were prepared using the conventional melting method and copper-potassium ion exchange process. Influences of the ion exchange process between copper and potassium on the visible, upconversion, and near-infrared luminescence spectra of Cr3+/Yb3+ co-doped under excitations of 343, 490, and 980 nm LD were investigated. The EDS analysis of SALBK glasses was measured to confirm the presence of atoms in the glasses. The values of direct and indirect bandgaps of Cr3+/Yb3+ co-doped SALBK glasses were calculated and analyzed. Besides, the energy exchange processes between Cu+, Cu2+ ions, and Cr3+, Yb3+ ions were also proposed and discussed.
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Affiliation(s)
- T H Le
- Department of Physics and Technology, Thai Nguyen University of Sciences Thai Nguyen Vietnam
| | - Anh-Luan Phan
- Institute of Fundamental and Applied Sciences, Duy Tan University Ho Chi Minh City 700000 Vietnam
- Faculty of Natural Sciences, Duy Tan University Da Nang City 550000 Vietnam
| | - Nguyen Minh Ty
- Faculty of Natural Sciences, Thu Dau Mot University Thu Dau Mot 590000 Vietnam
| | - Dacheng Zhou
- Key Laboratory of Advanced Materials of Yunnan Province, School of Materials Science and Engineering, Kunming University of Science and Technology Kunming 650093 China
| | - Jianbei Qiu
- Key Laboratory of Advanced Materials of Yunnan Province, School of Materials Science and Engineering, Kunming University of Science and Technology Kunming 650093 China
| | - Ho Kim Dan
- Ceramics and Biomaterials Research Group, Advanced Institute of Materials Science, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University Ho Chi Minh City Vietnam
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11
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Le TH, Lipatova AV, Volskaya MA, Tikhonova OA, Chumakov PM. [The State of The Jak/Stat Pathway Affects the Sensitivity of TumorCells to Oncolytic Enteroviruses]. Mol Biol (Mosk) 2020; 54:634-642. [PMID: 32799226 DOI: 10.31857/s0026898420040102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/10/2020] [Accepted: 02/19/2020] [Indexed: 11/24/2022]
Abstract
A test of the sensitivity of seven colon cancer cell lines to a panel of 12 nonpathogenic human enteroviruses revealed significant differences in the ability of tumor cells to become infected and replicate different viral strains. Among the factors that can affect the sensitivity of cells to viruses are differences in the state of the mechanisms of antiviral protection, associated with a reaction to type I interferons. Using the two colon cancer cell lines CaCo2 and LIM1215 as a model, significant differences were revealed in the ability of cells to defend themselves against virus infection after 16 hours of treatment with 1000 units/mL of interferon-alpha. To study the effect of the state of the interferon response system, represented by the Jak/STAT signaling pathway, on the sensitivity of cells to different strains of enteroviruses, HEK293T cell lines were used. These are capable of supporting replication of each of the tested enteroviruses, as well as maintaining the ability to protect against viral infection after the treatment with interferon. Using the CRISPR/Cas9 system, HEK293T sublines with knockouts of the IFNAR1 and STAT2 genes were obtained. The sensitivity of control and knockout cells to infection with five strains of enteroviruses and the vesicular stomatitis virus was analyzed. It was noted that knockout of the IFNAR1 and STAT2 genes resulted in an increased sensitivity to all tested viruses. In knockout cells, the levels of reproduction of the vaccine derived of poliovirus type 1, Echoviruses 7 and 30, and Coxsackie viruses B5 and A7 were also significantly increased in comparison with the control HEK293T cells. Thus, deficiencies in the Jak/STAT signaling pathway in tumor cells lead to an overall increase in the sensitivity to oncolytic viruses.
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Affiliation(s)
- T H Le
- Engelhardt Institute of Molecular Biology Russian Academy of Sciences, Moscow, 119991 Russia.,Moscow Institute of Physics and Technology, Dolgoprudny, Moscow oblast, 141701 Russia
| | - A V Lipatova
- Engelhardt Institute of Molecular Biology Russian Academy of Sciences, Moscow, 119991 Russia
| | - M A Volskaya
- Engelhardt Institute of Molecular Biology Russian Academy of Sciences, Moscow, 119991 Russia
| | - O A Tikhonova
- Engelhardt Institute of Molecular Biology Russian Academy of Sciences, Moscow, 119991 Russia
| | - P M Chumakov
- Engelhardt Institute of Molecular Biology Russian Academy of Sciences, Moscow, 119991 Russia.,Chumakov Federal Scientific Center for Research and Development of Immunobiological Products, Russian Academy of Sciences, Moscow, 108819 Russia.,
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12
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De NV, Le TH, Agramunt VH, Mas-Coma S. Early Postnatal and Preschool-Age Infection by Fasciola spp.: Report of Five Cases from Vietnam and Worldwide Review. Am J Trop Med Hyg 2020; 103:1578-1589. [PMID: 32618259 DOI: 10.4269/ajtmh.20-0139] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Fascioliasis is reported in five Vietnamese children aged 4 years or younger. A 10-month-old girl child and a 12-month-old boy child are the youngest patients ever diagnosed. Eggs in stools suggested an infection occurred at 5-6 months and 7-8 months of age, respectively. DNA sequencing and egg size indicated this to be the first report of a verified Fasciola gigantica infection in so small children. No specific diagnosis could be obtained in two 3-year-old children detected in the acute phase. A big and gravid ectopic F. gigantica-like worm was surgically found in a 4-year-old boy presenting with peritonitis. A worldwide review showed only 38 past cases in preschool children. They included 3, 7, 12, and 16 cases of 1, 2, 3, and 4 years, respectively, with a faster infection increase in males from 2 years onward. Reports were from all continents, except Oceania, including severe complications and death. The causal agent, when specifically diagnosed, was always Fasciola hepatica. Analyses include detection in hospital, surveys, and family outbreaks; infection sources; disease phases; parasite burden; ectopic cases; symptom onset; eosinophilia; biochemical markers; and clinical complications. C-reactive protein, creatinine, and γ-glutamyl transferase are the most useful biomarkers. A serological test and a coprological analysis are recommended for so small children, in which typical symptoms may be overlooked. Treatment problems were described with many drugs, except triclabendazole. Triclabendazole should be considered the drug of choice for such small children. The possibility of a very early infection by Fasciola spp. should be henceforth considered.
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Affiliation(s)
- Nguyen Van De
- Department of Parasitology, Hanoi Medical University, Hanoi, Vietnam
| | - Thanh Hoa Le
- Department of Immunology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Veronica H Agramunt
- Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Valencia, Spain
| | - Santiago Mas-Coma
- Departamento de Parasitología, Facultad de Farmacia, Universidad de Valencia, Valencia, Spain
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13
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Rosa BA, Choi YJ, McNulty SN, Jung H, Martin J, Agatsuma T, Sugiyama H, Le TH, Doanh PN, Maleewong W, Blair D, Brindley PJ, Fischer PU, Mitreva M. Comparative genomics and transcriptomics of 4 Paragonimus species provide insights into lung fluke parasitism and pathogenesis. Gigascience 2020; 9:giaa073. [PMID: 32687148 PMCID: PMC7370270 DOI: 10.1093/gigascience/giaa073] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/19/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Paragonimus spp. (lung flukes) are among the most injurious foodborne helminths, infecting ∼23 million people and subjecting ∼292 million to infection risk. Paragonimiasis is acquired from infected undercooked crustaceans and primarily affects the lungs but often causes lesions elsewhere including the brain. The disease is easily mistaken for tuberculosis owing to similar pulmonary symptoms, and accordingly, diagnostics are in demand. RESULTS We assembled, annotated, and compared draft genomes of 4 prevalent and distinct Paragonimus species: Paragonimus miyazakii, Paragonimus westermani, Paragonimus kellicotti, and Paragonimus heterotremus. Genomes ranged from 697 to 923 Mb, included 12,072-12,853 genes, and were 71.6-90.1% complete according to BUSCO. Orthologous group analysis spanning 21 species (lung, liver, and blood flukes, additional platyhelminths, and hosts) provided insights into lung fluke biology. We identified 256 lung fluke-specific and conserved orthologous groups with consistent transcriptional adult-stage Paragonimus expression profiles and enriched for iron acquisition, immune modulation, and other parasite functions. Previously identified Paragonimus diagnostic antigens were matched to genes, providing an opportunity to optimize and ensure pan-Paragonimus reactivity for diagnostic assays. CONCLUSIONS This report provides advances in molecular understanding of Paragonimus and underpins future studies into the biology, evolution, and pathogenesis of Paragonimus and related foodborne flukes. We anticipate that these novel genomic and transcriptomic resources will be invaluable for future lung fluke research.
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Affiliation(s)
- Bruce A Rosa
- Department of Internal Medicine, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - Young-Jun Choi
- Department of Internal Medicine, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - Samantha N McNulty
- The McDonnell Genome Institute at Washington University, School of Medicine, 4444 Forest Park Ave, St. Louis, MO 63108, USA
| | - Hyeim Jung
- Department of Internal Medicine, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - John Martin
- Department of Internal Medicine, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - Takeshi Agatsuma
- Department of Environmental Health Sciences, Kochi Medical School, Kohasu, Oko-cho 185-1, Nankoku, Kochi, 783-8505, Japan
| | - Hiromu Sugiyama
- Laboratory of Helminthology, Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Thanh Hoa Le
- Department of Immunology, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cay Giay, Ha Noi 10307, Vietnam
| | - Pham Ngoc Doanh
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cay Giay, Ha Noi 10307, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cay Giay, Ha Noi 10307, Vietnam
| | - Wanchai Maleewong
- Research and Diagnostic Center for Emerging Infectious Diseases, Khon Kaen University, 123 Moo 16 Mittraphap Rd., Nai-Muang, Muang District, Khon Kaen 40002, Thailand
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, 123 Moo 16 Mittraphap Rd., Nai-Muang, Muang District, Khon Kaen 40002, Thailand
| | - David Blair
- College of Marine and Environmental Sciences, James Cook University, 1 James Cook Drive, Townsville, Queensland 4811, Australia
| | - Paul J Brindley
- Departments of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, and Pathology School of Medicine & Health Sciences, George Washington University, Ross Hall 2300 Eye Street, NW, Washington, DC 20037, USA
| | - Peter U Fischer
- Department of Internal Medicine, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - Makedonka Mitreva
- Department of Internal Medicine, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
- The McDonnell Genome Institute at Washington University, School of Medicine, 4444 Forest Park Ave, St. Louis, MO 63108, USA
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14
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Dai F, Hong SJ, Pak JH, Le TH, Choi SH, Na BK, Sohn WM. High Prevalence of Clonorchis sinensis and Other Zoonotic Trematode Metacercariae in Fish from a Local Market in Yen Bai Province, Northern Vietnam. Korean J Parasitol 2020; 58:333-338. [PMID: 32615748 PMCID: PMC7338896 DOI: 10.3347/kjp.2020.58.3.333] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/24/2020] [Accepted: 05/20/2020] [Indexed: 12/29/2022]
Abstract
A small survey was performed to investigate the recent infection status of Clonorchis sinensis and other zoonotic trematode metacercariae in freshwater fish from a local market of Yen Bai city, Yen Bai province, northern Vietnam. A total of 118 fish in 7 species were examined by the artificial digestion method on March 2016. The metacercariae of 4 species of zoonotic trematodes, i.e., C. sinensis, Haplorchis pumilio, Haplorchis taichui, and Centrocestus formosanus, were detected. The metacercariae of C. sinensis were found in 62 (69.7%) out of 89 fish (5 species), and their intensity of infection was very high, 81.2 per fish infected. Prevalences of 3 intestinal flukes, H. pumilio, H. taichui and C. formosanus, were 75.0%, 47.6%, and 31.7% in positive fish species, respectively, with the metacercarial intensities of 15.5, 10.3, and 2.2 per fish infected. From the above results, it has been confirmed that various species of freshwater fish continue to play the role of the infection source of C. sinensis and other zoonotic trematodes in Yen Bai city, Yen Bai province, northern Vietnam. It is of particular note that the prevalence and intensity of C. sinensis metacercariae are much higher than those reported in previous studies in fish in northern Vietnam.
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Affiliation(s)
- Fuhong Dai
- Department of Environmental Medical Biology, Chung-Ang University College of Medicine, Seoul 06974, Korea.,Department of Parasitology, School of Biology and Basic Medical Sciences, Medical College, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Sung-Jong Hong
- Department of Environmental Medical Biology, Chung-Ang University College of Medicine, Seoul 06974, Korea
| | - Jhang Ho Pak
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Korea
| | - Thanh Hoa Le
- Department of Immunology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Seung-Ho Choi
- Society of Korean Naturalist, Institute of Ecology and Conservation, Yangpyeong 12563, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
| | - Woon-Mok Sohn
- Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine, Jinju 52727, Korea
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Hoang HTT, Nguyen CH, Nguyen NTT, Pham AD, Nguyen HTT, Le TH, Tran HX, Chu HH, Nguyen NT. Immunization with the H5N1 Recombinant Vaccine Candidate Induces High Protection in Chickens against Vietnamese Highly Pathogenic Avian Influenza Virus Strains. Vaccines (Basel) 2020; 8:vaccines8020159. [PMID: 32252383 PMCID: PMC7348806 DOI: 10.3390/vaccines8020159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 11/25/2022] Open
Abstract
Vietnam is one of the countries most affected worldwide by the highly pathogenic avian influenza (HPAI) virus, which caused enormous economic loss and posed threats to public health. Over nearly two decades, with the antigenic changes in the diversified H5Ny viruses, the limited protective efficacy of the available vaccines was encountered. Therefore, it is necessary to approach a technology platform for the country to accelerate vaccine production that enables quick response to new influenza subtypes. This study utilized a powerful reverse genetics technique to successfully generate a recombinant H5N1 vaccine strain (designated as IBT-RG02) containing two surface proteins (haemagglutinin (HA) and neuraminidase (NA)) from the HPAI H5N1 (A/duck/Vietnam/HT2/2014(H5N1)) of the dominant clade 2.3.2.1c in Vietnam during 2012–2014. Importantly, the IBT-RG02 vaccine candidate has elicited high antibody titres in chickens (geometric mean titre (GMT) of 6.42 and 6.92, log2 on day 14 and day 28 p.i., respectively). To test the efficacy, immunized chickens were challenged with the circulating virulent strains. As results, there was a high protection rate of 91.6% chickens against the virulent A/DK/VN/Bacninh/NCVD-17A384/2017 of the same clade and a cross-protection of 83.3% against A/duck/TG/NAVET(3)/2013 virus of clade 1.1. Our promising results showed that we can independently master the reverse genetics technology for generation of highly immunogenic vaccine candidates, and henceforth, it is a timely manner to reformulate avian influenza virus vaccines against variable H5 clade HPAI viruses in Vietnam.
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Affiliation(s)
- Hang Thi Thu Hoang
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
- Graduate University of Science and Technology (GUST), VAST, Hanoi 100000, Vietnam
| | - Chi Hung Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | - Ngan Thi Thuy Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | - An Dang Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | | | - Thanh Hoa Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | - Hanh Xuan Tran
- National Veterinary Joint Stock Company (NAVETCO), 29 Nguyen Dinh Chieu, Dist 1, Ho Chi Minh City 700000, Vietnam;
| | - Ha Hoang Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
- Graduate University of Science and Technology (GUST), VAST, Hanoi 100000, Vietnam
| | - Nam Trung Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
- Graduate University of Science and Technology (GUST), VAST, Hanoi 100000, Vietnam
- Correspondence: ; Tel.: +84-24-37910065
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Rajapakse RPVJ, Pham KLT, Karunathilake KJK, Lawton SP, Le TH. Characterization and phylogenetic properties of the complete mitochondrial genome of Fascioloides jacksoni (syn. Fasciola jacksoni) support the suggested intergeneric change from Fasciola to Fascioloides (Platyhelminthes: Trematoda: Plagiorchiida). Infect Genet Evol 2020; 82:104281. [PMID: 32165245 DOI: 10.1016/j.meegid.2020.104281] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/06/2020] [Accepted: 03/08/2020] [Indexed: 11/27/2022]
Abstract
Fascioloides jacksoni (syn. Fasciola jacksoni, Cobbold, 1869) (Platyhelminthes: Echinostomatoidea), is a liver fluke that causes severe morbidity and mortality of Asian elephants (Elephas maximus maximus). Understandings on molecular diagnosis, epidemiology, genetics and evolution of this flatworm are limited. In this study, we present the complete mitochondrial DNA (mt) sequence of 14,952 bp obtained from an individual fluke and comparative characterization of mitogenomic features with fasciolids, primarily, Fascioloides magna and other taxa in the superfamily Echinostomatoidea. Taxonomic relationship within and between Echinostomatoidea, Opisthorchioidea and Paramphistomoidea in the order Plagiorchiida, are also taxonomically considered. The complete circular mt molecule of Fas. jacksoni contained 12 protein-coding, two ribosomal RNA, 22 transfer RNA genes, and a non-coding region (NCR) rich in tandem repeat units. As common in digenean trematodes, Fas. jacksoni has the usual gene order, the absence of atp8 and the overlapped region by 40 bp between nad4L and nad4 genes. The NCR located between tRNAGlu (trnE) and cox3 contained nine nearly identical tandem repeat units (TRs of 113 bp each). Special DHU-arm missing tRNAs for Serine were found for both, tRNAS1(AGN) and tRNAS2(UCN). Base composition indicated that cox1 of Fas. jacksoni showed the lowest (11.8% to Fas. magna, 12.9 - 13.6% to Fasciola spp. and 18.1% to Fasciolopsis buski) and nad6 the highest divergence rate (19.2%, 23.8-26.5% and 27.2% to each fasciolid group), respectively. A clear bias in nucleotide composition, as of 61.68%, 62.88% and 61.54%, with a negative AT-skew of the corresponding values (-0.523, -0.225 and - 0.426) for PCGs, MRGs and mtDNA for Fas. jacksoni and likewise data for the fasciolids. Phylogenetic analysis confirmed the sister branch of Fas. jacksoni and Fas. magna with the nodal support of 100%, clearly separated from the taxonomically recognized Fasciola spp. With the previous studies, mitogenomic data presented in this study are strongly supportive for Fasciola jacksoni reappraisal as Fascioloides jacksoni in the Fascioloides genus.
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Affiliation(s)
- R P V J Rajapakse
- Department of Veterinary Pathobiology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Sri Lanka
| | - Khanh Linh Thi Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Viet Nam
| | - K J Kumari Karunathilake
- Department of Veterinary Pathobiology, Faculty of Veterinary Medicine and Animal Science, University of Peradeniya, Peradeniya, Sri Lanka
| | - Scott P Lawton
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, Surrey KT1 2EE, UK
| | - Thanh Hoa Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Viet Nam.
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Choi YJ, Fontenla S, Fischer PU, Le TH, Costábile A, Blair D, Brindley PJ, Tort JF, Cabada MM, Mitreva M. Adaptive Radiation of the Flukes of the Family Fasciolidae Inferred from Genome-Wide Comparisons of Key Species. Mol Biol Evol 2020; 37:84-99. [PMID: 31501870 DOI: 10.1093/molbev/msz204] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Liver and intestinal flukes of the family Fasciolidae cause zoonotic food-borne infections that impact both agriculture and human health throughout the world. Their evolutionary history and the genetic basis underlying their phenotypic and ecological diversity are not well understood. To close that knowledge gap, we compared the whole genomes of Fasciola hepatica, Fasciola gigantica, and Fasciolopsis buski and determined that the split between Fasciolopsis and Fasciola took place ∼90 Ma in the late Cretaceous period, and that between 65 and 50 Ma an intermediate host switch and a shift from intestinal to hepatic habitats occurred in the Fasciola lineage. The rapid climatic and ecological changes occurring during this period may have contributed to the adaptive radiation of these flukes. Expansion of cathepsins, fatty-acid-binding proteins, protein disulfide-isomerases, and molecular chaperones in the genus Fasciola highlights the significance of excretory-secretory proteins in these liver-dwelling flukes. Fasciola hepatica and Fasciola gigantica diverged ∼5 Ma near the Miocene-Pliocene boundary that coincides with reduced faunal exchange between Africa and Eurasia. Severe decrease in the effective population size ∼10 ka in Fasciola is consistent with a founder effect associated with its recent global spread through ruminant domestication. G-protein-coupled receptors may have key roles in adaptation of physiology and behavior to new ecological niches. This study has provided novel insights about the genome evolution of these important pathogens, has generated genomic resources to enable development of improved interventions and diagnosis, and has laid a solid foundation for genomic epidemiology to trace drug resistance and to aid surveillance.
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Affiliation(s)
- Young-Jun Choi
- McDonnell Genome Institute at Washington University in St. Louis, St. Louis, MO
| | - Santiago Fontenla
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Peter U Fischer
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Thanh Hoa Le
- Immunology Department, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Alicia Costábile
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - David Blair
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia
| | - Paul J Brindley
- Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, School of Medicine & Health Sciences, George Washington University, Washington, DC
| | - Jose F Tort
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Miguel M Cabada
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of Texas Medical Branch, Galveston, TX
| | - Makedonka Mitreva
- McDonnell Genome Institute at Washington University in St. Louis, St. Louis, MO.,Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO
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Le TH, Nguyen KT, Nguyen NTB, Doan HTT, Agatsuma T, Blair D. The complete mitochondrial genome of Paragonimus ohirai (Paragonimidae: Trematoda: Platyhelminthes) and its comparison with P. westermani congeners and other trematodes. PeerJ 2019; 7:e7031. [PMID: 31259095 PMCID: PMC6589331 DOI: 10.7717/peerj.7031] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/27/2019] [Indexed: 11/20/2022] Open
Abstract
We present the complete mitochondrial genome of Paragonimus ohirai Miyazaki, 1939 and compare its features with those of previously reported mitochondrial genomes of the pathogenic lung-fluke, Paragonimus westermani, and other members of the genus. The circular mitochondrial DNA molecule of the single fully sequenced individual of P. ohirai was 14,818 bp in length, containing 12 protein-coding, two ribosomal RNA and 22 transfer RNA genes. As is common among trematodes, an atp8 gene was absent from the mitogenome of P. ohirai and the 5' end of nad4 overlapped with the 3' end of nad4L by 40 bp. Paragonimusohirai and four forms/strains of P. westermani from South Korea and India, exhibited remarkably different base compositions and hence codon usage in protein-coding genes. In the fully sequenced P. ohirai individual, the non-coding region started with two long identical repeats (292 bp each), separated by tRNAGlu . These were followed by an array of six short tandem repeats (STR), 117 bp each. Numbers of the short tandem repeats varied among P. ohirai individuals. A phylogenetic tree inferred from concatenated mitochondrial protein sequences of 50 strains encompassing 42 species of trematodes belonging to 14 families identified a monophyletic Paragonimidae in the class Trematoda. Characterization of additional mitogenomes in the genus Paragonimus will be useful for biomedical studies and development of molecular tools and mitochondrial markers for diagnostic, identification, hybridization and phylogenetic/epidemiological/evolutionary studies.
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Affiliation(s)
- Thanh Hoa Le
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Khue Thi Nguyen
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nga Thi Bich Nguyen
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Huong Thi Thanh Doan
- Immunology Department, Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Takeshi Agatsuma
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Oko, Nankoku City, Kochi, Japan
| | - David Blair
- College of Science and Engineering, James Cook University, Townsville, Australia
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Chien NTH, Nguyen TL, Bui KL, Nguyen TV, Le TH. Anaplasma marginale and A. platys Characterized from Dairy and Indigenous Cattle and Dogs in Northern Vietnam. Korean J Parasitol 2019; 57:43-47. [PMID: 30840799 PMCID: PMC6409224 DOI: 10.3347/kjp.2019.57.1.43] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 11/11/2018] [Accepted: 01/28/2019] [Indexed: 01/19/2023]
Abstract
Anaplasma marginale and A. platys were detected and characterized (16S rDNA sequence analysis) from dairy and indigenous cattle, and the latter in domestic dogs in Vietnam. A phylogenetic tree was inferred from 26 representative strains/species of Anaplasma spp. including 10 new sequences from Vietnam. Seven of our Vietnamese sequences fell into the clade of A. marginale and 3 into A. platys, with strong nodal support of 99 and 90%, respectively. Low genetic distances (0.2–0.4%) within each species supported the identification. Anaplasma platys is able to infect humans. Our discovery of this species in cattle and domestic dogs raises considerable concern about zoonotic transmission in Vietnam. Further systematic investigations are needed to gain data for Anaplasma spp. and members of Anaplasmataceae in animal hosts, vectors and humans across Vietnam.
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Affiliation(s)
- Nguyen Thi Hong Chien
- Veterinary Parasitology Department, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Thi Lan Nguyen
- Veterinary Pathology Department, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Khanh Linh Bui
- Veterinary Parasitology Department, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Tho Van Nguyen
- Veterinary Parasitology Department, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Thanh Hoa Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam.,Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
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Nguyen TBN, De NV, Nguyen TKL, Quang HH, Doan HTT, Agatsuma T, Le TH. Distribution Status of Hybrid Types in Large Liver Flukes, Fasciola Species (Digenea: Fasciolidae), from Ruminants and Humans in Vietnam. Korean J Parasitol 2018; 56:453-461. [PMID: 30419731 PMCID: PMC6243193 DOI: 10.3347/kjp.2018.56.5.453] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 09/02/2018] [Accepted: 10/17/2018] [Indexed: 11/23/2022]
Abstract
The aim of this study is to delineate ‘admixed hybrid’ and ‘introgressive’ Fasciola genotypes present in the Fasciola population in Vietnam. Adult liver flukes collected from ruminants in 18 Provinces were morphologically sorted out by naked eyes for small (S), medium (M) and large (L) body shapes; and human samples (n=14) from patients. Nuclear ribosomal (rDNA) ITS1 and ITS2, and mitochondrial (mtDNA) nad1 markers were used for determination of their genetic status. Total 4,725 worm samples of ruminants were tentatively classified by their size: 6% (n=284) small (S)-, 13% (n=614) medium (M)-, and 81% (n=3,827) large (L)-forms. All the representative (n=120, as 40 each group) and 14 human specimens, possessed maternal mtDNA of only F. gigantica and none of F. hepatica. Paternally, all (100%) of the L-(n=40) and 77.5% (n=31) of the M-flukes had single F. gigantica rDNA indicating ‘pure’ F. gigantica. A majority (90%, n=36) of the S- and 15% (n=6) of the M-worms had single F. hepatica rDNA, indicating their introgressive; the rest (10%, n=4) of the S- and 7.5% (n=3) of the M-flukes had mixture of both F. gigantica and F. hepatica rDNAs, confirming their admixed hybrid genetic status. Fourteen human samples revealed 9 (64%) of pure F. gigantica, 3 (22%) of introgressive and 2 (14%) of admixed hybrid Fasciola spp. By the present study, it was confirmed that the small worms, which are morphologically identical with F. hepatica, are admixed and/or introgressive hybrids of Fasciola spp., and able to be the pathogens of human fascioliasis.
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Affiliation(s)
- Thi Bich Nga Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST) 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van De
- Hanoi Medical University, 1. Ton That Tung street, Dong Da, Hanoi, Vietnam
| | | | - Huynh Hong Quang
- Institute for Malariology, Parasitology and Entomology in Quy Nhon, Nguyen Thai Hoc, Quy Nhon, Vietnam
| | - Huong Thi Thanh Doan
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST) 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Takeshi Agatsuma
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Oko, Nankoku City, Kochi, Japan
| | - Thanh Hoa Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST) 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
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Le XTK, Doan HTT, Le TH. Molecular analysis of Newcastle disease virus isolates reveals a novel XIId subgenotype in Vietnam. Arch Virol 2018; 163:3125-3130. [PMID: 30054746 DOI: 10.1007/s00705-018-3961-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/31/2018] [Indexed: 11/28/2022]
Abstract
Eight Vietnamese Newcastle disease virus field isolates from 2008-2015 and 3 vaccine specimens were genotyped based on their full F gene sequences and compared to 80 reference strains representing all 18 genotypes. Three isolates formed a novel subgenotype XIId, identified for the first time in Vietnam; while the others clustered as follows: four in subgenotypes VIId and VIIh; two in Genotype I; and two in Genotype II. Evolutionary distance calculations confirmed the Vietnamese XIId isolates were distinct from XIIa and XIIb by 0.062-0.070; and from other genotypes by 0.089-0.245. This data demonstrated that a novel XIId subgenotype emerged in Vietnam indicating considerable genetic diversity, thus highlighting the need to implement antigenic matching during vaccination against NDVs.
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Affiliation(s)
- Xuyen Thi Kim Le
- Immunology Department, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Huong Thi Thanh Doan
- Immunology Department, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam
| | - Thanh Hoa Le
- Immunology Department, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd., Cau Giay, Hanoi, Vietnam.
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Dao TTH, Nguyen TTG, Gabriël S, Bui KL, Dorny P, Le TH. Updated molecular phylogenetic data for Opisthorchis spp. (Trematoda: Opisthorchioidea) from ducks in Vietnam. Parasit Vectors 2017; 10:575. [PMID: 29157282 PMCID: PMC5697094 DOI: 10.1186/s13071-017-2514-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/31/2017] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND An opisthorchiid liver fluke was recently reported from ducks (Anas platyrhynchos) in Binh Dinh Province of Central Vietnam, and referred to as "Opisthorchis viverrini-like". This species uses common cyprinoid fishes as second intermediate hosts as does Opisthorchis viverrini, with which it is sympatric in this province. In this study, we refer to the liver fluke from ducks as "Opisthorchis sp. BD2013", and provide new sequence data from the mitochondrial (mt) genome and the nuclear ribosomal transcription unit. A phylogenetic analysis was conducted to clarify the basal taxonomic position of this species from ducks within the genus Opisthorchis (Digenea: Opisthorchiidae). METHODS Adults and eggs of liver flukes were collected from ducks, metacercariae from fishes (Puntius brevis, Rasbora aurotaenia, Esomus metallicus) and cercariae from snails (Bithynia funiculata) in different localities in Binh Dinh Province. From four developmental life stage samples (adults, eggs, metacercariae and cercariae), the complete cytochrome b (cob), nicotinamide dehydrogenase subunit 1 (nad1) and cytochrome c oxidase subunit 1 (cox1) genes, and near-complete 18S and partial 28S ribosomal DNA (rDNA) sequences were obtained by PCR-coupled sequencing. The alignments of nucleotide sequences of concatenated cob + nad1 + cox1, and of concatenated 18S + 28S were separately subjected to phylogenetic analyses. Homologous sequences from other trematode species were included in each alignment. RESULTS Phylogenetic trees were inferred from concatenated (cob + nad1 + cox1) nucleotide sequences and combined 18S + 28S nucleotide sequences of five Opisthorchis sp. BD2013 samples and additional reference taxa. Both trees demonstrated the anticipated clustering of taxa within the superfamily Opisthorchioidea, the paraphyly of the genus Opisthorchis and the sister-species relationship of Opisthorchis sp. BD2013 with O. viverrini. CONCLUSIONS While it is likely that Opisthorchis sp. BD2013 is distinct from O. viverrini, it is clearly a sister taxon of O. viverrini within the limited number of Opisthorchis species for which appropriate sequence data are available. The new sequences provided here will assist the diagnosis and the taxonomic clarification of the opisthorchiid species.
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Affiliation(s)
- Thanh Thi Ha Dao
- National Institute of Veterinary Research, 86. Truong Chinh Street, Dong Da District, Hanoi, Vietnam
- Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, B2000 Antwerp, Belgium
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, 133 Salisburylaan, B9820, Merelbeke, Belgium
| | - Thanh Thi Giang Nguyen
- National Institute of Veterinary Research, 86. Truong Chinh Street, Dong Da District, Hanoi, Vietnam
- Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, B2000 Antwerp, Belgium
| | - Sarah Gabriël
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, 133 Salisburylaan, B-9820 Merelbeke, Belgium
| | - Khanh Linh Bui
- Department of Parasitology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Hanoi, Vietnam
| | - Pierre Dorny
- Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, B2000 Antwerp, Belgium
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, 133 Salisburylaan, B9820, Merelbeke, Belgium
| | - Thanh Hoa Le
- Department of Immunology, Institute of Biotechnology and Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
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Le TH, Nguyen KT, Nguyen NTB, Doan HTT, Dung DT, Blair D. The ribosomal transcription units of Haplorchis pumilio and H. taichui and the use of 28S rDNA sequences for phylogenetic identification of common heterophyids in Vietnam. Parasit Vectors 2017; 10:17. [PMID: 28069063 PMCID: PMC5223338 DOI: 10.1186/s13071-017-1968-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 01/04/2017] [Indexed: 11/10/2022] Open
Abstract
Background Heterophyidiasis is now a major public health threat in many tropical countries. Species in the trematode family Heterophyidae infecting humans include Centrocestus formosanus, Haplorchis pumilio, H. taichui, H. yokogawai, Procerovum varium and Stellantchasmus falcatus. For molecular phylogenetic and systematic studies on trematodes, we need more prospective markers for taxonomic identification and classification. This study provides near-complete ribosomal transcription units (rTU) from Haplorchis pumilio and H. taichui and demonstrates the use of 28S rDNA sequences for identification and phylogenetic analysis. Results The near-complete ribosomal transcription units (rTU), consisting of 18S, ITS1, 5.8S, ITS2 and 28S rRNA genes and spacers, from H. pumilio and H. taichui from human hosts in Vietnam, were determined and annotated. Sequence analysis revealed tandem repetitive elements in ITS1 in H. pumilio and in ITS2 in H. taichui. A phylogenetic tree inferred from 28S rDNA sequences of 40 trematode strains/species, including 14 Vietnamese heterophyid individuals, clearly confirmed the status of each of the Vietnamese species: Centrocestus formosanus, Haplorchis pumilio, H. taichui, H. yokogawai, Procerovum varium and Stellantchasmus falcatus. However, the family Heterophyidae was clearly not monophyletic, with some genera apparently allied with other families within the superfamily Opisthorchioidea (i.e. Cryptogonimidae and Opisthorchiidae). These families and their constituent genera require substantial re-evaluation using a combination of morphological and molecular data. Our new molecular data will assist in such studies. Conclusions The 28S rDNA sequences are conserved among individuals within a species but varied between genera. Based on analysis of 40 28S rDNA sequences representing 19 species in the superfamily Opisthorchioidea and an outgroup taxon (Alaria alata, family Diplostomidae), six common human pathogenic heterophyids were identified and clearly resolved. The phylogenetic tree inferred from these sequences again confirmed anomalies in molecular placement of some members of the family Heterophyidae and demonstrates the need for reappraisal of the entire superfamily Opisthorchioidea. The new sequences provided here supplement those already available in public databases and add to the array of molecular tools that can be used for the diagnosis of heterophyid species in human and animal infections.
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Affiliation(s)
- Thanh Hoa Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd,, Cau Giay, Hanoi, Vietnam.
| | - Khue Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd,, Cau Giay, Hanoi, Vietnam
| | - Nga Thi Bich Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd,, Cau Giay, Hanoi, Vietnam
| | - Huong Thi Thanh Doan
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd,, Cau Giay, Hanoi, Vietnam
| | - Do Trung Dung
- Department of Parasitology, National Institute of Malariology, Parasitology and Entomology, Luong The Vinh Rd,, Thanh Xuan, Hanoi, Vietnam
| | - David Blair
- College of Science and Engineering, James Cook University, Townsville, Australia
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Le TH, Nguyen NTB, Nguyen KT, Doan HTT, Dung DT, Blair D. A complete mitochondrial genome from Echinochasmus japonicus supports the elevation of Echinochasminae Odhner, 1910 to family rank (Trematoda: Platyhelminthes). Infection, Genetics and Evolution 2016; 45:369-377. [DOI: 10.1016/j.meegid.2016.09.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/28/2016] [Accepted: 09/30/2016] [Indexed: 10/20/2022]
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Yilmaz E, Fritzenwanker M, Pantchev N, Lendner M, Wongkamchai S, Otranto D, Kroidl I, Dennebaum M, Le TH, Anh Le T, Ramünke S, Schaper R, von Samson-Himmelstjerna G, Poppert S, Krücken J. The Mitochondrial Genomes of the Zoonotic Canine Filarial Parasites Dirofilaria (Nochtiella) repens and Candidatus Dirofilaria (Nochtiella) hongkongensis Provide Evidence for Presence of Cryptic Species. PLoS Negl Trop Dis 2016; 10:e0005028. [PMID: 27727270 PMCID: PMC5058507 DOI: 10.1371/journal.pntd.0005028] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/09/2016] [Indexed: 11/18/2022] Open
Abstract
Background Cutaneous dirofilariosis is a canine mosquito-borne zoonosis that can cause larva migrans disease in humans. Dirofilaria repens is considered an emerging pathogen occurring with high prevalence in Mediterranean areas and many parts of tropical Asia. In Hong Kong, a second species, Candidatus Dirofilaria hongkongensis, has been reported. The present study aimed to compare mitochondrial genomes from these parasites and to obtain population genetic information. Methods and Findings Complete mitochondrial genomes were obtained by PCR and Sanger sequencing or ILLUMINA sequencing for four worms. Cytochrome oxidase subunit 1 sequences identified three as D. repens (all from Europe) and one as C. D. hongkongensis (from India). Mitochondrial genomes have the same organization as in other spirurid nematodes but a higher preference for thymine in the coding strand. Phylogenetic analysis was in contradiction to current taxonomy of the Onchocercidae but in agreement with a recent multi-locus phylogenetic analysis using both mitochondrial and nuclear markers. D. repens and C. D. hongkongensis sequences clustered together and were the common sister group to Dirofilaria immitis. Analysis of a 2.5 kb mitochondrial genome fragment from macrofilaria or canine blood samples from Europe (42), Thailand (2), India (1) and Vietnam (1) revealed only small genetic differences in the D. repens samples including all European and the Vietnam sample. The Indian C. D. hongkongensis and the two Thai samples formed separate clusters and differences were comparatively large. Conclusion Genetic differences between Dirofilaria spp. causing cutaneous disease can be considerable whereas D. repens itself was genetically quite homogenous. C. D. hongkongensis was identified for the first time from the Indian subcontinent. The full mitochondrial genome sequence strengthens the hypothesis that it represents an independent species and the Thai samples might represent another cryptic species, Candidatus Dirofilaria sp. ‘Thailand II’, or a quite divergent population of C. D. hongkongensis. The mitochondrial genomes of the zoonotic parasite species Dirofilaria repens and Candidatus Dirofilaria hongkongensis were characterized and compared to the genomes of other filariae. The resulting phylogeny is largely in agreement with recent molecular data. C. D. hongkongensis was placed as a sister group to D. repens and both as a common sister to D. immitis. The large genetic difference between D. repens and C. D. hongkongensis further supports the hypothesis that both are distinct valid species. Two canine samples from Thailand that were diagnosed as D. repens are either from a C. D. hongkongensis population that is quite divergent from the Indian population or might represent another currently unrecognized species in the genus.
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Affiliation(s)
- Esra Yilmaz
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Moritz Fritzenwanker
- Institute of Medical Microbiology, Justus-Liebig-University, Giessen, Germany; German Center for Infection Research (DZIF), Partner site Giessen-Marburg-Langen, Campus Giessen, Giessen, Germany
| | | | - Mathias Lendner
- Institut für Parasitologie, Universität Leipzig, Leipzig, Germany
| | - Sirichit Wongkamchai
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Domenico Otranto
- Department of Veterinary Medicine, University of Bari, Bari, Italy
| | - Inge Kroidl
- Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU); German Center for Infection Research (DZIF), Partner site Munich, Germany
| | - Martin Dennebaum
- Section Clinical Tropical Medicine, Department of Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | - Thanh Hoa Le
- Immunology Department, Institute of Biotechnology, Ha Noi, Viet Nam
| | - Tran Anh Le
- Department of Parasitology, Viet Nam Veterinary Medical University, Ha Noi, Viet Nam
| | - Sabrina Ramünke
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | | | | | - Sven Poppert
- University Medical Center, Hamburg-Eppendorf, Germany
| | - Jürgen Krücken
- Institute for Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
- * E-mail:
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Doan HTT, Le XTK, Do RT, Hoang CTM, Nguyen KT, Le TH. Molecular genotyping of duck hepatitis A viruses (DHAV) in Vietnam. J Infect Dev Ctries 2016; 10:988-995. [PMID: 27694732 DOI: 10.3855/jidc.7239] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/31/2015] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION The aim of this study was to identify the genetic characteristics and molecular genotyping of duck hepatitis A virus (DHAV) isolated in Vietnam during 2009-2013. METHODOLOGY Thirty duckling livers from outbreaks between 2009 and 2013 in seven provinces were collected and identified by polymerase chain reaction (PCR). Then, VP1 genes of eleven positive samples and two attenuated vaccine strains were sequenced and analyzed. RESULTS Genotypic and phylogenetic analyses indicated that the 13 Vietnamese isolates were classified into two genotypes, DHAV-1 and DHAV-3. The rate of identity and homology was 91%-100% between the 10 Vietnamese and 26 global strains of DHAV-3, and 92%-100% between 3 Vietnamese and 16 strains of DHAV-1. Between the DHAV-3 and DHAV-1 strains, the divergence reached 30%. At the C-terminal of VP1 for the different strains, a hypervariable region was observed, and notably, six of the Vietnamese DHAV-3 strains in this study showed four consistent differences (at positions T184M, Q200H, K207N, and K214R) within this group that were distinct from all other DHAV-3 strains. CONCLUSIONS This is the first report of molecular characterization of DHAVs in Vietnam. At least two genotypes were identified, DHAV-1 and DHAV-3, with diversified clades within and between genotypes. DHAV-3 seemed to be dominant in Vietnam.
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Affiliation(s)
- Huong Thi Thanh Doan
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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Im YH, Uslu R, Lee KS, Nagarkar R, Sohn J, Sevinc A, Altundag K, Chang YC, Abdel-Razeq H, Im SA, Jeong J, Park HY, Arpornwirat W, Bastick P, Le TH, Ocak Arikan O, Xue HL, Canatar A, Valenti R, Kim SB. Abstract P4-13-09: Clinical effectiveness of everolimus and exemestane in advanced breast cancer patients from Asia and Africa: First efficacy and updated safety results from the phase IIIb EVEREXES study. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p4-13-09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
BOLERO-2 phase III trial established the efficacy of everolimus (EVE) plus exemestane (EXE) for the treatment of postmenopausal patients with hormone receptor (HR)-positive, HER2-negative, advanced breast cancer (aBC). However, in this study only a minority (<10%) of patients were recruited from African and Asia Pacific countries. Considering the potential effects of ethnic and cultural differences on treatment effectiveness, it remains compelling to confirm the safety and efficacy profile of EVE+EXE in these populations.
Methods
EVEREXES is an open-label phase IIIb, single arm, multi-center trial, which from March 2013 to October 2014 enrolled 232 post-menopausal, HR-positive and HER2-negative, aBC patients previously treated with aromatase inhibitors, across 13 countries in Asia Pacific, Middle East, North and South Africa, with a significant majority of patients being of Asian ethnicity (196, 84.5%). Its primary objective was to investigate the safety and tolerability profile of EVE+EXE. Secondary objectives were the evaluation of efficacy (assessed by PFS, ORR, and CBR based on RECIST 1.1 criteria) and change in ECOG performance status.
Results
At data cut off of 31st of January 2015, at a median follow up of 11.7 months, median PFS for the ITT population was 9.5 months [9.2-11.6 months], based on local assessment, with the observation of 1 (0.4%) CR and 35 (15.4%) PR. Regarding safety and tolerability, a majority (81.1%) of grade (G) 1/2 adverse events (AEs) was reported. In particular, the following pattern was observed in terms of % of patients who developed G1/G2/G3 mTOR-inhibition induced AEs: stomatitis (36.1, 13.7, 10.6), rash (21.6/6.2/0), fatigue (10.6, 4.4, 2.2), hyperglycemia (6.2, 11.5, 7.0), weight decrease (7.5, 7, 0.9), pneumonitis (5.7, 7, 0.9). No Grade 4 AEs related to EVE+EXE treatment were observed, with exception of one case of non infectious pneumonitis (0.4%). Median dose intensity of everolimus was 9.2 mg/day.
Conclusions
Efficacy and safety results from EVEREXES trial further confirm the role of EVE+EXE for the treatment of HR+/Her2- advanced BC patients in Eastern countries. Results were consistent with data previously reported in BOLERO-2 trial.
Citation Format: Im Y-H, Uslu R, Lee KS, Nagarkar R, Sohn J, Sevinc A, Altundag K, Chang Y-C, Abdel-Razeq H, Im S-A, Jeong J, Park HY, Arpornwirat W, Bastick P, Le TH, Ocak Arikan O, Xue HL, Canatar A, Valenti R, Kim S-B. Clinical effectiveness of everolimus and exemestane in advanced breast cancer patients from Asia and Africa: First efficacy and updated safety results from the phase IIIb EVEREXES study. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P4-13-09.
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Affiliation(s)
- Y-H Im
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - R Uslu
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - KS Lee
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - R Nagarkar
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Sohn
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - A Sevinc
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - K Altundag
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Y-C Chang
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H Abdel-Razeq
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-A Im
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Jeong
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - HY Park
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - W Arpornwirat
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - P Bastick
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - TH Le
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - O Ocak Arikan
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - HL Xue
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - A Canatar
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - R Valenti
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - S-B Kim
- Samsung Medical Center, Seoul, Korea; Ege University Medical Faculty, Izmir, Turkey; National Cancer Center, Gyeonggi-do, Korea; Curie Manavata Cancer Centre, Nashik, India; Severance Hospital, Yonsei University Health System, Soul, Korea; Gaziantep University Gaziantep Oncology Hospital, Gaziantep, Turkey; Hacettepe University Medical Faculty, Ankara, Turkey; Mackay Memorial Hospital, Taipei, Taiwan; King Hussein Cancer Center, Amman, Jordan; Seoul National University Hospital, Seoul, Korea; Gangnam Severance Hospital, Yonsei University Health System, Seoul, Korea; Kyungpook National University Medical Center, Daegu, Korea; National Cancer Institute, Bangkok, Thailand; Sutherland Hospital, Caringbah, Australia; Cho Ray Hospital, Ho Chí Minh, Viet Nam; Novartis Pharma AG, Basel, Switzerland; 1Novartis Asia Pacific Pharmaceuticals Pte. Ltd, Singapore, Singapore; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Le TH, Madsen P, Lundeheim N, Nilsson K, Norberg E. Genetic association between leg conformation in young pigs and sow longevity. J Anim Breed Genet 2015; 133:283-90. [PMID: 26578175 DOI: 10.1111/jbg.12193] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 04/21/2015] [Accepted: 10/06/2015] [Indexed: 12/01/2022]
Abstract
Longevity is important in pig production with respect to both economic and ethical aspects. Direct selection for longevity might be ineffective because 'true' longevity can only be recorded when a sow has been culled or died. Thus, indirect selection for longevity using information from other traits that can be recorded early in life and are genetically correlated with longevity might be an alternative. Leg conformation has been included in many breeding schemes for a number of years. However, proving that leg conformation traits are good early indicators for longevity still remains. Our aim was to study genetic associations between leg conformation traits of young (5 months; 100 kg) Swedish Yorkshire pigs in nucleus herds and longevity traits of sows in nucleus and multiplier herds. Data included 97 533 animals with information on conformation (Movement and Overall score) recorded at performance testing and 26 962 sows with information on longevity. The longevity traits were as follows: stayability from 1st to 2nd parity, lifetime number of litters and lifetime number of born alive piglets. Genetic analyses were performed with both linear models using REML and linear-threshold models using Bayesian methods. Heritabilities estimated using the Bayesian method were higher than those estimated using REML, ranging from 0.10 to 0.24 and 0.07 to 0.20, respectively. All estimated genetic correlations between conformation and longevity traits were significant and favourable. Heritabilities and genetic correlations between conformation and longevity indicate that selection on leg conformation should improve sow longevity.
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Affiliation(s)
- T H Le
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden.,Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - P Madsen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | - N Lundeheim
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - K Nilsson
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - E Norberg
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
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Le TH, Anh NTL, Nguyen KT, Nguyen NTB, Thuy DTT, Gasser RB. Toxocara malaysiensis infection in domestic cats in Vietnam--An emerging zoonotic issue? Infect Genet Evol 2015; 37:94-8. [PMID: 26584512 DOI: 10.1016/j.meegid.2015.11.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 11/05/2015] [Accepted: 11/12/2015] [Indexed: 11/28/2022]
Abstract
Toxocara canis of canids is a parasitic nematode (ascaridoid) that infects humans and other hosts, causing different forms of toxocariasis. This species of Toxocara appears to be the most important cause of human disease, likely followed by Toxocara cati from felids. Although some studies from Malaysia and China have shown that cats can harbor another congener, T. malaysiensis, no information is available about this parasite for other countries. Moreover, the zoonotic potential of this parasite is unknown at this point. In the present study, we conducted the first investigation of domestic dogs and cats for Toxocara in Vietnam using molecular tools. Toxocara malaysiensis was identified as a common ascaridoid of domestic cats (in the absence of T. cati), and T. canis was commonly found in dogs. Together with findings from previous studies, the present results emphasize the need to explore the significance and zoonotic potential of T. malaysiensis in Vietnam and other countries where this parasite is endemic and prevalent in cats.
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Affiliation(s)
- Thanh Hoa Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam.
| | - Nguyen Thi Lan Anh
- Department of Parasitology, National Institute of Veterinary Research, 86 Truong Chinh, Hanoi, Vietnam
| | - Khue Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Nga Thi Bich Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18. Hoang Quoc Viet Rd, Cau Giay, Hanoi, Vietnam
| | - Do Thi Thu Thuy
- Department of Parasitology, National Institute of Veterinary Research, 86 Truong Chinh, Hanoi, Vietnam
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria, Australia
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Le TA, Vi TT, Nguyen KL, Le TH. A Rare Human Case of Dirofilaria repens Infection in the Subcutaneous Posterior Thorax with Molecular Identification. Korean J Parasitol 2015; 53:329-33. [PMID: 26174827 PMCID: PMC4510683 DOI: 10.3347/kjp.2015.53.3.329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 03/17/2015] [Revised: 05/09/2015] [Accepted: 05/23/2015] [Indexed: 11/23/2022]
Abstract
The emergence of Dirofilarial infections in Asia including Vietnam is a clinically significant threat to the community. We here report a rare case of subcutaneous Dirofilaria repens infection on the posterior thoracic wall in a young woman presenting a painful, itchy, and palpable nodule. The adult worm was identified by mitochondrial cox1 and nuclear ITS-2 sequence determination. The diagnosis was additionally confirmed by 16S rRNA sequencing of the endosymbiont Wolbachia pipientis commonly co-existing with D. repens. This is a rare case of subcutaneous human infection on the posterior thoracic region caused by D. repens.
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Affiliation(s)
- Tran Anh Le
- Department of Parasitology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Thuat Thang Vi
- Department of Pathology, Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
| | - Khac Luc Nguyen
- Department of Parasitology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Thanh Hoa Le
- Immunology Department, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Do TD, Park C, Choi K, Jeong J, Nguyen TT, Nguyen DQ, Le TH, Chae C. Comparison of experimental infection with northern and southern Vietnamese strains of highly pathogenic porcine reproductive and respiratory syndrome virus. J Comp Pathol 2015; 152:227-37. [PMID: 25678425 DOI: 10.1016/j.jcpa.2014.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 08/18/2014] [Revised: 10/15/2014] [Accepted: 12/08/2014] [Indexed: 11/18/2022]
Abstract
The aim of this study was to compare the virulence of northern and southern Vietnamese strains of highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) as assessed by the level of viral replication, gross and microscopical lung lesions and virus distribution in experimentally infected pigs. The northern and southern Vietnamese HP-PRRSV strains share 96.7% (non-structural protein 2) and 99.3% (open reading frame 5) nucleotide identity. On experimental challenge, approximately 50% of pigs infected with northern Vietnamese HP-PRRSV died, while death was not observed in any pigs infected with southern Vietnamese HP-PRRSV. Mean viral titres (expressed as log(10)TCID(50)/ml) were significantly (P <0.05) higher in sera and lungs from pigs infected with the northern Vietnamese HP-PRRSV than from those infected with the southern Vietnamese strain at multiple time points. Lung lesion scores and PRRSV antigen within pulmonary and lymphoid lesions were significantly (P <0.05) higher in pigs infected with northern Vietnamese HP-PRRSV than in those receiving southern Vietnamese HP-PRRSV at multiple time points. PRRSV antigens were observed in cardiac myocytes, gastric and renal tubular epithelial cells and astrocytes and microglia of white matter in the brain from pigs infected with the northern Vietnamese HP-PRRSV strain only. Thus, genetic similarity did not predict the degree of virulence of these strains. Northern Vietnamese HP-PRRSV was more virulent and had extended tissue tropism when compared with southern Vietnamese HP-PRRSV.
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Affiliation(s)
- T D Do
- Seoul National University, Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; Faculty of Animal Husbandry and Veterinary Medicine, Nonglam University, Thu Duc District, Ho Chi Minh City, Vietnam
| | - C Park
- Seoul National University, Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - K Choi
- Seoul National University, Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - J Jeong
- Seoul National University, Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - T T Nguyen
- Faculty of Animal Husbandry and Veterinary Medicine, Nonglam University, Thu Duc District, Ho Chi Minh City, Vietnam
| | - D Q Nguyen
- Faculty of Animal Husbandry and Veterinary Medicine, Nonglam University, Thu Duc District, Ho Chi Minh City, Vietnam
| | - T H Le
- Faculty of Animal Husbandry and Veterinary Medicine, Nonglam University, Thu Duc District, Ho Chi Minh City, Vietnam
| | - C Chae
- Seoul National University, Department of Veterinary Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
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Le TH, Nguyen NTB. Evolutionary dynamics of highly pathogenic avian influenza A/H5N1 HA clades and vaccine implementation in Vietnam. Clin Exp Vaccine Res 2014; 3:117-27. [PMID: 25003084 PMCID: PMC4083063 DOI: 10.7774/cevr.2014.3.2.117] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 05/02/2014] [Accepted: 05/11/2014] [Indexed: 01/05/2023] Open
Abstract
Based on hemagglutinin (HA) and neuraminidase (NA), influenza A virus is divided into 18 different HA (H1 to H18) and 11 NA types (N1 to N11), opening the possibility for reassortment between the HA and NA genes to generate new HxNy subtypes (where x could be any HA and y is any NA, possibly). In recent four years, since 2010, highly pathogenic avian influenza (HPAI) viruses of H5N1 subtype (HPAI A/H5N1) have become highly enzootic and dynamically evolved to form multiple H5 HA clades, particularly in China, Vietnam, Indonesia, Egypt, Cambodia, and Bangladesh. So far, after more than 10 years emerged in Vietnam (since late 2003), HPAI A/H5N1 is still posing a potential risk of causing outbreaks in poultry, with high frequency of annual endemics. Intragenic variation (referred to as antigenic drift) in HA (e.g., H5) has given rise to form numerous clades, typically marking the major timelines of the evolutionary status and vaccine application in each period. The dominance of genetically and antigenically diversified clade 2.3.2.1 (of subgroups a, b, c), clade 1.1 (1.1.1/1.1.2) and re-emergence of clade 7.1/7.2 at present, has urged Vietnam to the need for dynamically applied antigenicity-matching vaccines, i.e., the plan of importing Re-6 vaccine for use in 2014, in parallel use of Re-1/Re-5 since 2006. In this review, we summarize evolutionary features of HPAI A/H5N1 viruses and clade formation during recent 10 years (2004-2014). Dynamic of vaccine implementation in Vienam is also remarked.
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Affiliation(s)
- Thanh Hoa Le
- Department of Immunology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nga Thi Bich Nguyen
- Department of Immunology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Van De N, Le TH, Lien PTH, Eom KS. Current status of taeniasis and cysticercosis in Vietnam. Korean J Parasitol 2014; 52:125-9. [PMID: 24850954 PMCID: PMC4028448 DOI: 10.3347/kjp.2014.52.2.125] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [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: 09/06/2013] [Revised: 09/27/2013] [Accepted: 10/27/2013] [Indexed: 11/23/2022]
Abstract
Several reports on taeniasis and cysticercosis in Vietnam show that they are distributed in over 50 of 63 provinces. In some endemic areas, the prevalence of taeniasis was 0.2-12.0% and that of cysticercosis was 1.0-7.2%. The major symptoms of taeniasis included fidgeted anus, proglottids moving out of the anus, and proglottids in the feces. Clinical manifestations of cysticercosis in humans included subcutaneous nodules, epileptic seizures, severe headach, impaired vision, and memory loss. The species identification of Taenia in Vietnam included Taenia asiatica, Taenia saginata, and Taenia solium based on combined morphology and molecular methods. Only T. solium caused cysticercosis in humans. Praziquantel was chosen for treatment of taeniasis and albendazole for treatment of cysticercosis. The infection rate of cysticercus cellulosae in pigs was 0.04% at Hanoi slaughterhouses, 0.03-0.31% at provincial slaughterhouses in the north, and 0.9% in provincial slaughterhouses in the southern region of Vietnam. The infection rate of cysticercus bovis in cattle was 0.03-2.17% at Hanoi slaughterhouses. Risk factors investigated with regard to transmission of Taenia suggested that consumption of raw meat (eating raw meat 4.5-74.3%), inadequate or absent meat inspection and control, poor sanitation in some endemic areas, and use of untreated human waste as a fertilizer for crops may play important roles in Vietnam, although this remains to be validated.
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Affiliation(s)
- Nguyen Van De
- Department of Parasitology, Hanoi Medical University, Vietnam
| | - Thanh Hoa Le
- Department of Immunology, Institute of Bio-Technology, Vietnam
| | | | - Keeseon S Eom
- Department of Immunology, Institute of Bio-Technology, Vietnam
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Cai XQ, Yu HQ, Ruan ZX, Yang LL, Bai JS, Qiu DY, Jian ZH, Xiao YQ, Yang JY, Le TH, Zhu XQ. Rapid detection and simultaneous genotyping of Cronobacter spp. (formerly Enterobacter sakazakii) in powdered infant formula using real-time PCR and high resolution melting (HRM) analysis. PLoS One 2013; 8:e67082. [PMID: 23825624 PMCID: PMC3692429 DOI: 10.1371/journal.pone.0067082] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 05/15/2013] [Indexed: 12/02/2022] Open
Abstract
Cronobacter spp. is an emerging pathogen that causes meningitis, sepsis, bacteremia, and necrotizing enterocolitis in neonates and children. The present study developed an assay integrating real-time PCR and high resolution melting (HRM) analysis targeting the OmpA gene for the specific detection and rapid identification of Cronobacter spp. (formerly Enterobacter sakazakii) in powdered infant formula. Eleven Cronobacter field isolates and 25 reference strains were examined using one pair of primers, having the accuracy of 100% in reference to conventional methods. The assay was proved to be highly sensitive with a detection limit of 102 CFU/ml without pre-enrichment, and highly concordant (100%) when compared with ISO-IDF 22964 in 89 actual samples. The method performed for Cronobacter spp. detection was less than 24 h, drastically shortened, compared to several days using standard culturing method, it is probe-free and reduces a risk of PCR carryover. Moreover, all Cronobacter strains examined in this study were genotyped into two species according to their HRM profiles. The established method should provide a molecular tool for direct detection and simultaneous genotyping of Cronobacter spp. in powdered infant formula.
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Affiliation(s)
- Xian-Quan Cai
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People’s Republic of China
- Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, People’s Republic of China
| | - Hai-Qiong Yu
- Technical Center, Guangdong Entry-Exit Inspection and Quarantine Bureau, Guangzhou, Guangdong Province, People’s Republic of China
| | - Zhou-Xi Ruan
- Animal & Plant Inspection and Quarantine Technical Center, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen, Guangdong Province, People’s Republic of China
| | - Lei-Liang Yang
- Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, People’s Republic of China
| | - Jian-Shan Bai
- Guangzhou Airport Entry-Exit Inspection and Quarantine Bureau, Guangzhou, Guangdong Province, People’s Republic of China
| | - De-Yi Qiu
- Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, People’s Republic of China
| | - Zhi-Hua Jian
- Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, People’s Republic of China
| | - Yi-Qian Xiao
- Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, People’s Republic of China
| | - Jie-Yang Yang
- Technical Center, Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan, Guangdong Province, People’s Republic of China
| | - Thanh Hoa Le
- Immunology Department, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People’s Republic of China
- * E-mail:
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Islam MT, Le TH, Rahman MM, Islam MA. Molecular characterization of two Bangladeshi infectious bursal disease virus isolates using the hypervariable sequence of VP2 as a genetic marker. J Vet Sci 2013; 13:405-12. [PMID: 23271182 PMCID: PMC3539126 DOI: 10.4142/jvs.2012.13.4.405] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Two Bangladeshi infectious bursal disease virus (IBDV) isolates collected in 2007, termed GB1 and GB3, were subjected to comparative sequencing and phylogenetic analyses. Sequence analysis of a 474-bp hypervariable region in the VP2 gene revealed that among four major amino acid substitutions observed in the strains, two were unique to GB1 and GB3 (Ser217Leu and Ala270Thr) while one substitution was only found in GB1 (Asn299Ser). Among IBDVs from Bangladesh including GB1 and GB3, the rate of identity and homology was around 97~99%. The amino acid sequences of GB1 and GB3 differ from those of previous Bangladeshi IBDV isolates and contain amino acid substitutions Pro222Ala and Asn299Ser (in GB3 only). Phylogenetic analysis revealed that GB1 and GB3 are grouped with other very virulent IBDVs of European and American origin in contrast to two previously isolated Bangladeshi IBDV strains (GenBank accession Nos. AF362776 and AF260317), which belong to the Asian group. It was concluded that GB1 and GB3 belong to a very virulent group of IBDVs. However, amino acid sequences of GB1 and GB3 differ from those of the other Bangladeshi IBDVs by one or two amino acids encoded in the hypervariable region of the VP2 gene.
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Affiliation(s)
- Md Taohidul Islam
- Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.
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Affiliation(s)
- Nguyen De
- Hanoi Medical University, Hanoi, Vietnam
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Van De N, Le TH, Murrell KD. Prevalence and Intensity of Fish-Borne Zoonotic Trematodes in Cultured Freshwater Fish from Rural and Urban Areas of Northern Vietnam. J Parasitol 2012; 98:1023-5. [DOI: 10.1645/ge-3112.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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De NV, Le TH, Chai JY. Dirofilaria repens in Vietnam: detection of 10 eye and subcutaneous tissue infection cases identified by morphology and molecular methods. Korean J Parasitol 2012; 50:137-41. [PMID: 22711925 PMCID: PMC3375452 DOI: 10.3347/kjp.2012.50.2.137] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 12/22/2011] [Revised: 03/15/2012] [Accepted: 03/15/2012] [Indexed: 11/24/2022]
Abstract
From 2006 to 2010, hospitals in Hanoi treated 10 human patients for dirofilariasis. The worms were collected from parasitic places, and identification of the species was completed by morphology and molecular methods. Ten parasites were recovered either from the conjunctiva (n=9) or subcutaneous tissue (n=1). The parasites were 4.0-12.5 cm in length and 0.5-0.6 mm in width. Morphological observations suggested all parasites as Dirofilaria repens. Three of the 10 parasites (1 from subcutaneous tissue and 2 from eyes) were used for molecular confirmation of the species identification. A portion of the mitochondrial cox1 (461 bp) was amplified and sequenced. Nucleotide and amino acid homologies were 95% and 99-100%, respectively, when compared with D. repens (Italian origin, GenBank AJ271614; DQ358814). This is the first report of eye dirofilariasis and the second report of subcutaneous tissue dirofilariasis due to D. repens in Vietnam.
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Affiliation(s)
- Nguyen Van De
- Department of Parasitology, Hanoi Medical University, Hanoi, Vietnam.
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De NV, Le TH. Human infections of fish-borne trematodes in Vietnam: Prevalence and molecular specific identification at an endemic commune in Nam Dinh province. Exp Parasitol 2011; 129:355-61. [DOI: 10.1016/j.exppara.2011.09.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 08/24/2011] [Accepted: 09/13/2011] [Indexed: 01/06/2023]
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Le TH, Le TB, Doan THT, Quyen DV, Le KXT, Pham VC, Nagataki M, Nomura H, Ikeue Y, Watanabe Y, Agatsuma T. The Adjuvant Effect of Sophy ¥-Glucan to the Antibody Response in Poultry Immunized by the Avian Influenza A H5N1 and H5N2 Vaccines. J Microbiol Biotechnol 2011. [DOI: 10.4014/jmb.1011.11024] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Nguyen TGT, Le TH, De NV, Doan TT, Dao THT, Vercruysse J, Dorny P. Assessment of a 27-kDa antigen in enzyme-linked immunosorbent assay for the diagnosis of fasciolosis in Vietnamese patients. Trop Med Int Health 2010; 15:462-7. [PMID: 20149166 DOI: 10.1111/j.1365-3156.2010.02468.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Fasciolosis has emerged as an important zoonotic disease in many parts of the world. In recent years, an increasing number of human cases were reported in Vietnam. In this study, the 27-kDa component protein from the excretory/secretory production of adult Fasciola gigantica, purified by high performance liquid chromatography, was assessed in an enzyme-linked immunosorbent assay (ELISA) to detect antibodies against Fasciola spp. for diagnosis of human fasciolosis. The ELISA showed a high sensitivity (100%) and specificity (97.67%) when tested on patients with fasciolosis, other parasitic infections, cholangiocarcinoma and on healthy controls. The assay was applied for diagnosis on 143 patients in the Viet Duc-Hanoi hospital who presented with clinical signs of liver disease and lesions in their livers as shown by imaging techniques. Antibodies were found in 37 (25.9%) of these patients, of whom only 3 shed Fasciola eggs in their stools (2.1%). The excellent response to triclabendazole treatment of 37 sero-positive patients confirmed the diagnosis of fasciolosis. This study demonstrated the diagnostic potential for human fasciolosis of the 27-kDa antigen ELISA. Fasciolosis should be considered in the differential diagnosis of hepatic disease in Vietnam.
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Affiliation(s)
- T G T Nguyen
- National Institute of Veterinary Research, Hanoi, Vietnam
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Le TH, Le KXT, Cuong PV, Cuc NTK, Le TB, Ikeue Y, Watanabe Y, Agatsuma T. Adjuvant effects of Sophy β-glucan on H5N1 and H5N2 vaccination using a mouse model. Trop Med Health 2010. [DOI: 10.2149/tmh.2009-13] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Van Van K, Dalsgaard A, Blair D, Le TH. Haplorchis pumilio and H. taichui in Vietnam discriminated using ITS-2 DNA sequence data from adults and larvae. Exp Parasitol 2009; 123:146-51. [DOI: 10.1016/j.exppara.2009.06.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 06/10/2009] [Accepted: 06/16/2009] [Indexed: 10/20/2022]
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Nguyen TGT, Van De N, Vercruysse J, Dorny P, Le TH. Genotypic characterization and species identification of Fasciola spp. with implications regarding the isolates infecting goats in Vietnam. Exp Parasitol 2009; 123:354-61. [PMID: 19733565 DOI: 10.1016/j.exppara.2009.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Revised: 08/31/2009] [Accepted: 09/01/2009] [Indexed: 10/20/2022]
Abstract
Ribosomal RNA sequences (361 or 362bp) of the second internal transcribed spacer 2 (ITS-2) and a portion of mitochondrial cox1 (423bp) for Fasciola spp. obtained from specimens collected in indigenous and hybrid goats and sheep in Vietnam were characterized for genotypic status and hybridization/introgression. Alignment of 48 ITS-2 sequences (also those from goats and sheep in this study) indicates that F. gigantica and F. hepatica differ typically from each other at seven sites whereas one of these is a distinguishing deletion (T) at the 327th position in F. gigantica relative to F. hepatica. The isolates from the mountainous goats in the North of Vietnam (Yen Bai province) showed the ITS-2 composition relatively identical to that of F. hepatica. The ITS-2 sequences from populations of Fasciola isolates in goats had probably experienced introgression/hybridization as reported previously in other ruminants and humans. All Vietnamese goat-of-origin specimens had high pairwise percentage of mitochondrial cox1 sequences to F. gigantica (97-100%), and very low identity to F. hepatica (91-93%), suggesting their maternal linkage to be traced to F. gigantica. The presence of hybrid and/or introgressed populations of liver flukes bearing genetic material from both F. hepatica and F. gigantica in the goats/sheep in Vietnam, regardless of indigenous or imported hosts, appears to be the first demonstration from a tropical country.
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Sato Y, Le TH, Hiraike R, Yukawa M, Sakai T, Rajapakse RJ, Agatsuma T. Mitochondrial DNA sequence and gene order of the Sri Lankan Schistosoma nasale is affiliated to the African/Indian group. Parasitol Int 2008; 57:460-4. [DOI: 10.1016/j.parint.2008.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2008] [Revised: 05/24/2008] [Accepted: 05/30/2008] [Indexed: 11/25/2022]
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Lotfy WM, Perera VBVP, Loker ES, Brant SV, Rajapakse RPVJ, Laursen JR, Demiaszkiewicz A, DeJong RJ, Le TH. Evolutionary Origins, Diversification, and Biogeography of Liver Flukes (Digenea, Fasciolidae). Am J Trop Med Hyg 2008. [DOI: 10.4269/ajtmh.2008.79.248] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Lotfy WM, Brant SV, DeJong RJ, Le TH, Demiaszkiewicz A, Rajapakse RPVJ, Perera VBVP, Laursen JR, Loker ES. Evolutionary origins, diversification, and biogeography of liver flukes (Digenea, Fasciolidae). Am J Trop Med Hyg 2008; 79:248-55. [PMID: 18689632 PMCID: PMC2577557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Fasciolid flukes are among the largest and best known digenetic trematodes and have considerable historical and veterinary significance. Fasciola hepatica is commonly implicated in causing disease in humans. The origins, patterns of diversification, and biogeography of fasciolids are all poorly known. We have undertaken a molecular phylogenetic study using 28S, internal transcribed spacer 1 and 2 (ITS-1 and ITS-2) of nuclear ribosomal DNA, and mitochondrial nicotinamide dehydrogenase subunit 1 (nad1) that included seven of the nine recognized species in the family. The fasciolids examined comprise a monophyletic group with the most basal species recovered from African elephants. We hypothesize fasciolids migrated from Africa to Eurasia, with secondary colonization of Africa. Fasciolids have been conservative in maintaining relatively large adult body size, but anatomical features of their digestive and reproductive systems are available. These flukes have been opportunistic, with respect to switching to new snail (planorbid to lymnaeid) and mammalian hosts and from intestinal to hepatic habitats within mammals.
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Affiliation(s)
- Wael M Lotfy
- Parasitology Department, Medical Research Institute, Alexandria University, Alexandrina, Egypt
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Yatawara L, Wickramasinghe S, Rajapakse RPVJ, Siyambalagoda RRMLR, Le TH, Watanabe Y, Agatsuma T. Morphological and molecular studies on Sri Lankan Leishmania. Trop Med Health 2008. [DOI: 10.2149/tmh.2008-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Salzler HR, Griffiths R, Ruiz P, Chi L, Frey C, Marchuk DA, Rockman HA, Le TH. Hypertension and albuminuria in chronic kidney disease mapped to a mouse chromosome 11 locus. Kidney Int 2007; 72:1226-32. [PMID: 17851470 PMCID: PMC7185734 DOI: 10.1038/sj.ki.5002519] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Chronic kidney disease (CKD) is a key cause of hypertension and a potent independent risk for cardiovascular disease. Epidemiological studies suggest a strong genetic component determining susceptibility for renal disease and, by inference, the associated cardiovascular risk. With a subtotal nephrectomy model of kidney disease, we found the 129S6 mouse strain to be very susceptible to the development of hypertension, albuminuria, and kidney injury, whereas the C57BL/6 strain is relatively resistant. Accordingly, we set out to map quantitative trait loci conferring susceptibility to hypertension and albuminuria using this model with F2 mice. We found significant linkage of the blood pressure trait to two loci. At D11Mit143, mice homozygous for the 129S6 allele had significantly higher systolic blood pressure than mice heterozygous or homozygous for the C57BL/6 allele. Similarly, at D1Mit308, there was an excellent correlation between genotype and the blood pressure phenotype. The effect of the chromosome 11 locus was verified with a separate cohort of F2 mice. For the albuminuria trait, a significant locus was found at D11Mit143, which overlaps the blood pressure trait locus. Our studies have identified a region spanning approximately 8 cM on mouse chromosome 11 that is associated with susceptibility to hypertension and albuminuria in CKD.
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Affiliation(s)
- HR Salzler
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Medicine, Durham VA Medical Center, Durham, North Carolina, USA
| | - R Griffiths
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Medicine, Durham VA Medical Center, Durham, North Carolina, USA
| | - P Ruiz
- Department of Pathology, University of Miami, Miami, Florida, USA
| | - L Chi
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Medicine, Durham VA Medical Center, Durham, North Carolina, USA
| | - C Frey
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Medicine, Durham VA Medical Center, Durham, North Carolina, USA
| | - DA Marchuk
- Department of Genetics, Duke University Medical Center, Durham, North Carolina, USA
| | - HA Rockman
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | - TH Le
- Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Medicine, Durham VA Medical Center, Durham, North Carolina, USA
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Le TH, De NV, Agatsuma T, Blair D, Vercruysse J, Dorny P, Nguyen TGT, McManus DP. Molecular confirmation that Fasciola gigantica can undertake aberrant migrations in human hosts. J Clin Microbiol 2007; 45:648-50. [PMID: 17135435 PMCID: PMC1829072 DOI: 10.1128/jcm.01151-06] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2006] [Revised: 07/06/2006] [Accepted: 10/09/2006] [Indexed: 11/20/2022] Open
Abstract
Two cases of aberrant migration by the liver fluke Fasciola gigantica in humans are reported. In both cases, subadult worms emerged through the skin. The identity of the worms was confirmed from their DNA sequences. This uncommon human pathogen might be more likely than F. hepatica to undertake aberrant migrations in humans.
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Affiliation(s)
- Thanh Hoa Le
- Department of Immunology, Institute of Biotechnology, Hanoi, Vietnam
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