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Ebrahimipour M, Afgar A, Barati M, Mohammadi MA, Harandi MF. Evaluation of the antigenic epitopes of EgAgB/1 and EgAgB/4 subunit antigens in G1 and G6 genotypes of Echinococcus granulosus using bioinformatics. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Sadjjadi SM, Ebrahimipour M, Sadjjadi FS. Comparison between Echinococcus granulosus sensu stricto (G1) and E. canadensis (G6) mitochondrial genes (cox1 and nad1) and their related protein models using experimental and bioinformatics analysis. Comput Biol Chem 2019; 79:103-109. [PMID: 30769268 DOI: 10.1016/j.compbiolchem.2019.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 02/02/2019] [Accepted: 02/03/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Cystic echinococcosis (CE) as a zoonotic parasitic disease, remains a health challenge in many parts of the world. There are different species of Echinococcus granulosus sensu lato with different pathogenicity and host preferences.Different procedures have been applied for characterization of Echinococcus taxa in which two mitochondrial genes, cox1 and nad1 have been used more common. They have been able to differentiate E. granulosus sensu stricto and E. canadensis species in different hosts. The affinity of E. granulosus sensu stricto and E. canadensis species for localizing different organs seems to be different. To what such affinity and related pathogenicity could be related, is not known, so far. Bioinformatics analysis may be helpful to interpret such difference by investigating the genes and their related protein models between different species infecting human and animals. The current work was designed to study the differences between E. granulosus s.s. and E. canadensis species mitochondrial genes (cox1 and nad1) and related protein models of CE cysts by experimental and bioinformatics analysis. MATERIALS AND METHODS Different human and animal CE cysts were collected and their DNA was extracted and sequenced based on their cox1 and nad1 genes. In order to determine the E. granulosus s.s. and E. canadensis species of the samples, BLAST analysis was performed on sequenced genes. Three sequences were selected for analysis and were deposited in GenBank. Moreover, the sequence number of KT988116.1 which belonged to E. canadensis from our already deposited in GenBank was also selected. Alignment and phylogenetic analysis were performed on the sequences using BioEdit and MEGA7 software. The raw sequences of translated proteins belonged to the mentioned genes were obtained from Protein database in NCBI. The secondary structure was determined by PSIPRED Protein Sequence Analysis Workbench. The tertiary models of COX1 and NAD1 proteins in both genotypes were constructed using Modeler 9.12 software and their physicochemical features were computed using ProtParam tool in ExPASY server. RESULTS BLAST analysis on sequenced genes showed that the samples belonged to E. granulosus s.s. and E. canadensis species. These sequences were deposited in GenBank with accession numbers: JN579173.1, KF437811.1, and KY924632.1. The results showed that proteins of COX1 of E. granulosus s.s., COX1of E. canadensis, NAD1of E. granulosus s.s. and NAD1of E. canadensis species, consisted of 135, 122, 120 and 124 amino acids, respectively. The aligned sequences of translated proteins belonged to COX1 and NAD1 enzymes in E. granulosus s.s. and E. canadensis species were different; such that alignment COX1 sequence between E. granulosus s.s. and E. canadensis species showed that amino acids were different in 6 positions. This difference for NAD1 sequences were different in 19 positions. The secondary structure determined by PSIPRED showed differences in coil, strand and helix chains in COX1 and NAD1 proteins in E. granulosus s.s. and E. canadensis species. Comparison between three-dimensional structures (3D) of COX1 protein model in E. granulosus s.s. and E. canadensis species demonstrated an additional helix with two conserved iron binding sites in the COX1 protein of E. granulosus s.s. species. CONCLUSION E. granulosus s.s. and E. canadensis species differences are reflected in two important proteins: COX1 and NAD1. These differences are demonstrable in the 3D structure of proteins of both strains. So, the present study is adding to our understanding of the difference in molecular sequences between the E. granulosus s.s. (G1) and E. canadensis (G6) which may be used for interpreting the difference between the pathogenicity and localization affinity in these two important helminthic zoonosis.
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Affiliation(s)
- Seyed Mahmoud Sadjjadi
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mohammad Ebrahimipour
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Sadat Sadjjadi
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Evaluation of Echinococcus granulosus recombinant EgAgB8/1, EgAgB8/2 and EPC1 antigens in the diagnosis of cystic echinococcosis in buffaloes. Vet Parasitol 2018; 252:29-34. [PMID: 29559147 DOI: 10.1016/j.vetpar.2018.01.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/21/2018] [Accepted: 01/23/2018] [Indexed: 11/23/2022]
Abstract
Three recombinant proteins of Echinococcus granulosus including two antigen B sub-units EgAgB8/1 and EgAgB8/2 and Echinococcus protoscolex calcium binding protein 1 (EPC1) were expressed in prokaryotic expression vectors. The diagnostic potential of these three recombinant proteins was evaluated in the detection of cystic echinococcosis in buffaloes in IgG-ELISA. The EgAgB8/1 and EgAgB8/2 recombinant proteins reacted fairly with the hydatid infected buffaloes with sensitivity of 75.0% and 78.6%, respectively and specificity of 75.8% while EPC1 recombinant protein showed higher sensitivity (89.3%) but lower specificity (51.5%). Cross-reactivity of these three antigens was assayed with buffalo sera naturally infected with Explanatum explanatum, Paramphistomum epiclitum, Gastrothylax spp., Fasciola gigantica and Sarcocystis spp. EgAgB8/1 and EPC1 antigens cross-reacted with all these sera while EgAgB8/2 showed no cross-reaction with Sarcocystis spp. and reacted with some of the E. explanatum infected buffalo sera. This study explores the potential of three hydatid antigens viz. EgAgB8/1, EgAgB8/2 and EPC1 for their diagnostic potential in buffaloes positive for cystic echinococcosis.
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Ji Z, Liu H, Fang L, Yu Y, Zhou Z. Use of immunoproteomics to identify immunogenic proteins in a rat model of acute respiratory distress syndrome. Mol Med Rep 2017; 16:7625-7632. [PMID: 28944852 DOI: 10.3892/mmr.2017.7557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/17/2017] [Indexed: 11/06/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a common and life‑threatening clinical syndrome, and seeking biomarkers of ARDS has been an area of continuing research. The present study hypothesized that alterations to certain immunogenic substances occur in injured lungs and are able to specifically bind with corresponding proteins in the blood, and that these proteins may be readily detected. To investigate this hypothesis, a rat model of ARDS was established by cecal ligation and puncture surgery, and an immunoproteomics approach, using serum as the primary antibody in a western blot analysis, was used with the aim of identifying immunogenic proteins in the injured lungs. Ingenuity Pathway Analysis (IPA) was used for bioinformatics analysis, and mass spectrometric analysis was used to identify a total of 38 differentially expressed immunogenic proteins. Bioinformatics analysis revealed that the top canonical pathways in which the identified proteins may be involved were gluconeogenesis I, glycolysis I, choline degradation I, NADH repair and heme degradation. IPA Biomarker Filter analysis with the terms 'acute respiratory distress syndrome/acute lung injury' was used to screen 13 proteins as candidate biomarkers. These proteins were described as antigens, and suggested that paired antibodies may be detected in the plasma of patients at high risk of ARDS. Analysis of these identified proteins may provide novel insights into the potential pathological mechanisms of ARDS.
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Affiliation(s)
- Zongshu Ji
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Haiyan Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Linsen Fang
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Youxin Yu
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Zheng Zhou
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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Rice Bean - A Multipurpose, Underutilized, Potential Nutritive Fodder Legume - A Review. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2017. [DOI: 10.22207/jpam.11.1.57] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Fathi S, Jalousian F, Hosseini SH, Parsa H, Kordafshari S. A Study of Cross-Reactivity Between Recombinant EPC1 Antigen of Echinococcus granulosus in Serum from Patients with Confirmed Cystic Echinococcosis Infection and Other Parasitic Infections. Am J Trop Med Hyg 2016; 94:1313-7. [PMID: 27091868 DOI: 10.4269/ajtmh.15-0680] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 03/07/2016] [Indexed: 12/16/2022] Open
Abstract
A standardized test for the serodiagnosis of cystic echinococcosis (CE) remains an important challenge because of the problems in specificity and sensitivity of the available commercial kits and lack of proper evaluation of antigen. Using appropriate sources of antigenic material is crucial in improvement of the serological methods such as enzyme-linked immunosorbent assay (ELISA). This study was conducted to evaluate the performance of protein named Echinococcus protoscolex calcium binding protein EPC1 for the detection of antibodies in sera from patients with CE. Expressed and purified recombinant protein EPC1 (rEPC1) was used as antigen in ELISA method. Characterization of the rEPC1 antigen was evaluated using the serum of 25 patients with both surgical and imaging confirmed CE and 25 healthy donors as negative controls. Also, a panel of sera including chronic toxoplasmosis (IgG positive), strongyloidosis, fascioliasis, toxocariasis, and kala azar were used and patients with related parasites were confirmed by medical laboratories or clinically by research centers using microscopy or specific ELISA. rEPC1 showed relatively promising performance in total IgG ELISA for the detection of antibodies in sera from the negative controls, and the cut off value 0.4 units of optical density at 490 nm was calculated for ELISA. In this study, sensitivity of 100%, specificity of 93.7, positive predictive value of 92.6%, and negative predictive value of 100% were calculated for rEPC1. On the other hand, commercial ELISA kit based on the native antigen B of Echinococcus granulosus had sensitivity of 96.2% and specificity of 96.8%. No significant difference was found for sensitivity or specificity between the rEPC1 and commercial kit. However, rEPC1 may be a valuable antigen for diagnosis of human CE.
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Affiliation(s)
- Saeid Fathi
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Department of Surgery, Velayat Hospital, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Fatemeh Jalousian
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Department of Surgery, Velayat Hospital, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Seyed Hossein Hosseini
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Department of Surgery, Velayat Hospital, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Hossein Parsa
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Department of Surgery, Velayat Hospital, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Somayeh Kordafshari
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Department of Surgery, Velayat Hospital, Qazvin University of Medical Sciences, Qazvin, Iran
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Almeida AM, Bassols A, Bendixen E, Bhide M, Ceciliani F, Cristobal S, Eckersall PD, Hollung K, Lisacek F, Mazzucchelli G, McLaughlin M, Miller I, Nally JE, Plowman J, Renaut J, Rodrigues P, Roncada P, Staric J, Turk R. Animal board invited review: advances in proteomics for animal and food sciences. Animal 2015; 9:1-17. [PMID: 25359324 PMCID: PMC4301196 DOI: 10.1017/s1751731114002602] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 09/27/2014] [Indexed: 01/15/2023] Open
Abstract
Animal production and health (APH) is an important sector in the world economy, representing a large proportion of the budget of all member states in the European Union and in other continents. APH is a highly competitive sector with a strong emphasis on innovation and, albeit with country to country variations, on scientific research. Proteomics (the study of all proteins present in a given tissue or fluid - i.e. the proteome) has an enormous potential when applied to APH. Nevertheless, for a variety of reasons and in contrast to disciplines such as plant sciences or human biomedicine, such potential is only now being tapped. To counter such limited usage, 6 years ago we created a consortium dedicated to the applications of Proteomics to APH, specifically in the form of a Cooperation in Science and Technology (COST) Action, termed FA1002--Proteomics in Farm Animals: www.cost-faproteomics.org. In 4 years, the consortium quickly enlarged to a total of 31 countries in Europe, as well as Israel, Argentina, Australia and New Zealand. This article has a triple purpose. First, we aim to provide clear examples on the applications and benefits of the use of proteomics in all aspects related to APH. Second, we provide insights and possibilities on the new trends and objectives for APH proteomics applications and technologies for the years to come. Finally, we provide an overview and balance of the major activities and accomplishments of the COST Action on Farm Animal Proteomics. These include activities such as the organization of seminars, workshops and major scientific conferences, organization of summer schools, financing Short-Term Scientific Missions (STSMs) and the generation of scientific literature. Overall, the Action has attained all of the proposed objectives and has made considerable difference by putting proteomics on the global map for animal and veterinary researchers in general and by contributing significantly to reduce the East-West and North-South gaps existing in the European farm animal research. Future activities of significance in the field of scientific research, involving members of the action, as well as others, will likely be established in the future.
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Affiliation(s)
- A. M. Almeida
- Instituto de Investigação Científica Tropical, CVZ – Centro de Veterinária e Zootecnia, Av. Univ. Técnica, 1300-477 Lisboa, Portugal
- CIISA – Centro Interdisciplinar de Investigação em Sanidade Animal, 1300-477 Lisboa, Portugal
- ITQB – Instituto de Tecnologia Química e Biológica da UNL, 2780-157 Oeiras, Portugal
- IBET – Instituto de Biologia Experimental e Tecnológica, 2780-157 Oeiras, Portugal
| | - A. Bassols
- Departament de Bioquímica i Biologia Molecular, Facultat de Veterinària, Universitat Autònoma de Barcelona,08193 Cerdanyola del Vallès, Spain
| | - E. Bendixen
- Institute of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - M. Bhide
- Laboratory of Biomedical Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenskeho-73 Kosice, Slovakia
| | - F. Ceciliani
- Department of Veterinary Science and Public Health, Università di Milano, Via Celoria 10, 20133 Milano, Italy
| | - S. Cristobal
- Department of Clinical and Experimental Medicine, Division of Cell Biology, Faculty of Health Science, Linköping University, SE-581 85 Linköping, Sweden
- IKERBASQUE, Basque Foundation for Science, Department of Physiology, Faculty of Medicine and Dentistry, University of Basque Country,48940 Leioa, Bizkaia, Spain
| | - P. D. Eckersall
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Garscube Estate, Glasgow G61 1QH, UK
| | - K. Hollung
- Nofima AS, PO Box 210, NO-1431 Aas, Norway
| | - F. Lisacek
- Swiss Institute of Bioinformatics, CMU – Rue Michel-Servet 1, 1211 Geneva 4, Switzerland
| | - G. Mazzucchelli
- Mass Spectrometry Laboratory, GIGA-Research, Department of Chemistry, University of Liège, 4000 Liège, Belgium
| | - M. McLaughlin
- Division of Veterinary Bioscience, School of Veterinary Medicine, University of Glasgow, Garscube Estate, Glasgow G61 1QH, UK
| | - I. Miller
- Institute of Medical Biochemistry, University of Veterinary Medicine, Veterinaerplatz 1, A-1210 Vienna, Austria
| | - J. E. Nally
- National Animal Disease Center, Bacterial Diseases of Livestock Research Unit, Agricultural Research Service, United States Department of Agriculture, Ames, IA 50010, USA
| | - J. Plowman
- Food & Bio-Based Products, AgResearch, Lincoln Research Centre, Christchurch 8140, New Zealand
| | - J. Renaut
- Department of Environment and Agrobiotechnologies, Centre de Recherche Public – Gabriel Lippmann, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - P. Rodrigues
- CCMAR – Centre of Marine Sciences of Algarve, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - P. Roncada
- Department of Veterinary Science and Public Health, Istituto Sperimentale Italiano L. Spallanzani Milano, University of Milano, 20133 Milano, Italy
| | - J. Staric
- Clinic for Ruminants with Ambulatory Clinic, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - R. Turk
- Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
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Ito A, Dorjsuren T, Davaasuren A, Yanagida T, Sako Y, Nakaya K, Nakao M, Bat-Ochir OE, Ayushkhuu T, Bazarragchaa N, Gonchigsengee N, Li T, Agvaandaram G, Davaajav A, Boldbaatar C, Chuluunbaatar G. Cystic echinococcoses in Mongolia: molecular identification, serology and risk factors. PLoS Negl Trop Dis 2014; 8:e2937. [PMID: 24945801 PMCID: PMC4063745 DOI: 10.1371/journal.pntd.0002937] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 04/27/2014] [Indexed: 12/28/2022] Open
Abstract
Background Cystic echinococcosis (CE) is a globally distributed cestode zoonosis that causes hepatic cysts. Although Echinococcus granulosus sensu stricto (s.s.) is the major causative agent of CE worldwide, recent molecular epidemiological studies have revealed that E. canadensis is common in countries where camels are present. One such country is Mongolia. Methodology/Principal Findings Forty-three human hepatic CE cases that were confirmed histopathologically at the National Center of Pathology (NCP) in Ulaanbaatar (UB) were identified by analysis of mitochondrial cox 1 gene as being caused by either E. canadensis (n = 31, 72.1%) or E. granulosus s.s. (n = 12, 27.9%). The majority of the E. canadensis cases were strain G6/7 (29/31, 93.5%). Twenty three haplotypes were identified. Sixteen of 39 CE cases with data on age, sex and province of residence were citizens of UB (41.0%), with 13 of the 16 cases from UB caused by E. canadensis (G6/7) (81.3%). Among these 13 cases, nine were children (69.2%). All pediatric cases (n = 18) were due to E. canadensis with 17 of the 18 cases (94.4%) due to strain G6/7. Serum samples were available for 31 of the 43 CE cases, with 22 (71.0%) samples positive by ELISA to recombinant Antigen B8/1 (rAgB). Nine of 10 CE cases caused by E. granulosus s.s. (90.0%) and 13 of 20 CE cases by E. canadensis (G6/7) (65.0%) were seropositive. The one CE case caused by E. canadensis (G10) was seronegative. CE cases caused by E. granulosus s.s. showed higher absorbance values (median value 1.131) than those caused by E. canadensis (G6/7) (median value 0.106) (p = 0.0137). Conclusion/Significance The main species/strains in the study population were E. canadenis and E. granulossus s.s. with E. canadensis the predominant species identified in children. The reason why E. canadensis appears to be so common in children is unknown. Cystic echinococcosis (CE) is a parasitic zoonosis with a cosmopolitan distribution. Molecular analysis was carried out on 43 hepatic CE cysts from 43 cases confirmed histopathologically at the NCP, Mongolia. Molecular analysis revealed two species, Echinococcus canadensis and Echinococcus granulosus s.s. Twenty three haplotypes of the cox1 gene were identified. All pediatric cases (n = 18) were by E. canadensis. Sixteen of 39 CE cases with data on age, sex and province of residence were from UB (41.0%), and 13 of these 16 cases were caused by E. canadensis (81.3%). Among the 13 cases from UB, nine were children (69.2%). A total of 31 serum samples from these 43 cases were analyzed for antibody response to rAgB with 22 (71.0%) samples positive by ELISA to rAgB. Thirteen of 20 E. canadensis (G6/7) (65%) and nine of 10 E. granulosus s.s. (90%) were seropositive. CE cases by E. granulosus s.s. showed a higher absorbance value than cases by E. canadensis (p = 0.0137). This is the first study to evaluate age distribution of and antibody responses to rAgB in CE cases caused by the two species in Mongolia. It remains unknown why E. canadensis appears to be more common in pediatric cases.
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Affiliation(s)
- Akira Ito
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- * E-mail:
| | - Temuulen Dorjsuren
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- Department of Medical Biology and Histology, School of Biomedicine, Health Sciences University of Mongolia, Ulaanbaatar, Mongolia
| | - Anu Davaasuren
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- National Center for Communicable Diseases, Ulaanbaatar, Mongolia
| | - Tetsuya Yanagida
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
| | - Yasuhito Sako
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
| | - Kazuhiro Nakaya
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
| | - Minoru Nakao
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
| | | | | | | | | | - Tiaoying Li
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- Institute of Parasitic Diseases, Sichuan Centers for Disease Control and Prevention, Chengdu, China
| | - Gurbadam Agvaandaram
- Department of Medical Biology and Histology, School of Biomedicine, Health Sciences University of Mongolia, Ulaanbaatar, Mongolia
| | - Abmed Davaajav
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- National Center for Communicable Diseases, Ulaanbaatar, Mongolia
| | - Chinchuluun Boldbaatar
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- Institute of Veterinary Medicine, Ulaanbaatar, Mongolia
| | - Gantigmaa Chuluunbaatar
- Department of Parasitology, Asahikawa Medical University, Asahikawa, Japan
- Mongolian Academy of Science, Ulaanbaatar, Mongolia
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