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Parasite: Journal de la Société Française de Parasitologie

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https://www.readbyqxmd.com/read/30526821/seroprevalence-of-toxoplasma-gondii-infection-and-variables-associated-with-seropositivity-in-donkeys-in-eastern-china
#1
Qing-Feng Meng, Dan Li, Gui-Zhe Yao, Yang Zou, Wei Cong, Xiao-Feng Shan
Donkeys (Equus asinus) are widely distributed throughout China; they are used for their meat, as food, and certain donkey-derived items are also important for traditional Chinese medicinal purposes. However, only limited information is available on Toxoplasma gondii infection in donkeys in China, especially the eastern region, which is one of the largest production areas. Thus, the present study was conducted to detect specific anti-T. gondii antibodies using a commercially available indirect hemagglutination test (IHA) kit and to evaluate the risk factors that are associated with seroprevalence in the Shandong province of eastern China...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30526820/ultrastructure-of-mature-spermatozoa-of-three-bucephalidae-prosorhynchus-longisaccatus-rhipidocotyle-khalili-and-bucephalus-margaritae-and-phylogenetic-implications
#2
Papa Ibnou Ndiaye, Bernard Marchand, Cheikh Tidiane Bâ, Jean-Lou Justine, Rodney A Bray, Yann Quilichini
We describe here the mature spermatozoa of three species of bucephalids, namely Bucephalus margaritae, Rhipidocotyle khalili and Prosorhynchus longisaccatus. This study provides the first ultrastructural data on the genera Bucephalus and Rhipidocotyle and enabled us to confirm the model of the mature spermatozoon in the Bucephalinae. The spermatozoon exhibits two axonemes with the 9 + "1" pattern of the Trepaxonemata, one of which is very short, lateral expansion, external ornamentation of the plasma membrane located in the anterior extremity of the spermatozoon and associated with cortical microtubules, spine-like bodies, a mitochondrion, and a nucleus...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30526819/six-new-dactylogyrid-species-platyhelminthes-monogenea-from-the-gills-of-cichlids-teleostei-cichliformes-from-the-lower-congo-basin
#3
Michiel W P Jorissen, Antoine Pariselle, Tine Huyse, Emmanuel J Vreven, Jos Snoeks, Eva Decru, Thomas Kusters, Soleil Wamuini Lunkayilakio, Fidel Muterezi Bukinga, Tom Artois, Maarten P M Vanhove
The Lower Congo Basin is characterized by a mangrove-lined estuary at its mouth and, further upstream, by many hydrogeographical barriers such as rapids and narrow gorges. Five localities in the mangroves and four from (upstream) left bank tributaries or pools were sampled. On the gills of Coptodon tholloni, Coptodon rendalli, Hemichromis elongatus, Hemichromis stellifer and Tylochromis praecox, 17 species of parasites (Dactylogyridae & Gyrodactylidae, Monogenea) were found, eight of which are new to science...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30516132/treatment-of-canine-sarcoptic-mange-with-afoxolaner-nexgard-%C3%A2-and-afoxolaner-plus-milbemycin-oxime-nexgard-spectra-%C3%A2-chewable-tablets-efficacy-under-field-conditions-in-portugal-and-germany
#4
Verena Hampel, Martin Knaus, Jürgen Schäfer, Frederic Beugnet, Steffen Rehbein
The efficacy of NexGard® and NexGard Spectra® against sarcoptic mange in dogs was evaluated in a clinical field study. Skin scrapings from dogs presenting signs suggestive of sarcoptic mange were examined to confirm infestation. A total of 106 dogs were screened at eight sites in Portugal and Germany. In all, 80 dogs that had demonstrated ≥5 live Sarcoptes mites in five skin scrapings were enrolled, scored for specific clinical signs (pruritus; papules and crusts; alopecia), and allocated at random to receive either NexGard® or NexGard Spectra® twice, one month apart per label instructions...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30516131/recombinant-%C3%AE-and-%C3%AE-tubulin-from-echinococcus-granulosus-expression-purification-and-polymerization
#5
Congshan Liu, Jiaqing Yao, Jianhai Yin, Jian Xue, Haobing Zhang
Echinococcosis, which causes a high disease burden and is of great public health significance, is caused by the larval stage of Echinococcus species. It has been suggested that tubulin is the target of benzimidazoles, the only drugs for the treatment of echinococcosis. This study evaluated the characteristics of tubulins from Echinococcus granulosus. The full-length cDNAs of E. granulosus α- and β-tubulin isoforms were cloned by reverse transcription PCR from protoscolex RNA. Then, these two tubulin isoforms (α9 and β4 ) were recombinantly expressed as insoluble inclusion bodies in Escherichia coli...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30516130/identification-and-partial-characterization-of-a-novel-serpin-from-eudiplozoon-nipponicum-monogenea-polyopisthocotylea
#6
Pavel Roudnický, Jiří Vorel, Jana Ilgová, Michal Benovics, Adam Norek, Lucie Jedličková, Libor Mikeš, David Potěšil, Zbyněk Zdráhal, Jan Dvořák, Milan Gelnar, Martin Kašný
BACKGROUND: Serpins are a superfamily of serine peptidase inhibitors that participate in the regulation of many physiological and cell peptidase-mediated processes in all organisms (e.g. in blood clotting, complement activation, fibrinolysis, inflammation, and programmed cell death). It was postulated that in the blood-feeding members of the monogenean family Diplozoidae, serpins could play an important role in the prevention of thrombus formation, activation of complement, inflammation in the host, and/or in the endogenous regulation of protein degradation...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30474601/molecular-characterization-and-protective-efficacy-of-the-microneme-2-protein-from-eimeria-tenella
#7
Ming Yan, Xiaoxia Cui, Qiping Zhao, Shunhai Zhu, Bing Huang, Lu Wang, Huanzhi Zhao, Guiling Liu, Zhihang Li, Hongyu Han, Hui Dong
Microneme proteins play an important role in the adherence of apicomplexan parasites to host cells during the invasion process. In this study, the microneme 2 protein from the protozoan parasite Eimeria tenella (EtMIC2) was cloned, characterized, and its protective efficacy as a DNA vaccine investigated. The EtMIC2 gene, which codes for a 35.07 kDa protein in E. tenella sporulated oocysts, was cloned and recombinant EtMIC2 protein (rEtMIC2) was produced in an Escherichia coli expression system. Immunostaining with an anti-rEtMIC2 antibody showed that the EtMIC2 protein mainly localized in the anterior region and membrane of sporozoites, in the cytoplasm of first- and second-generation merozoites, and was strongly expressed during first-stage schizogony...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30474600/molecular-characterization-of-trypanosoma-cruzi-samples-derived-from-triatoma-vitticeps-and-panstrongylus-geniculatus-of-the-atlantic-rainforest-southeast-brazil
#8
Maria Augusta Dario, Tassiane Emanuelle Servare Andrade, Claudiney Biral Dos Santos, Blima Fux, Adeilton Alves Brandão, Aloísio Falqueto
BACKGROUND: In rural areas of Espírito Santo state, southeast Brazil, triatomine species attracted by light frequently invade residences. The aim of this study was to investigate the Trypanosoma cruzi discrete typing units (DTUs) harbored by these triatomines. METHODS: Triatomine's intestinal contents were examined, inoculated in mice, and the positive samples were cultivated. Flagellates obtained from infected mice hemoculture were submitted to DNA extraction using a salting-out method and to TcSC5D gene amplification...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30474599/a-new-species-of-peniculus-copepoda-siphonostomatoida-parasitizing-mesopelagic-myctophid-fish-first-discovery-of-colonization-of-the-genus-in-deep-water
#9
Susumu Ohtsuka, Jun Nishikawa, Geoffrey A Boxshall
Peniculus hokutoae n. sp. is described on the basis of an ovigerous adult female parasitizing the caudal fin of the myctophid fish Symbolophorus evermanni (Gilbert, 1905), collected from Suruga Bay, Japan. This is the first record of parasitism by this genus on mesopelagic myctophid fish. The new species is easily distinguished from other congeners in: (1) the presence of a conical process anterior to the rostrum; (2) the secondary elongation of the first pedigerous somite; (3) the incorporation of the third and fourth pedigerous somites into the trunk; (4) the unilobate maxillule bearing two unequal apical setae; (5) the lack of any processes on the first segment of the maxilla...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30474598/echinococcus-granulosus-sensu-stricto-silencing-of-thioredoxin-peroxidase-impairs-the-differentiation-of-protoscoleces-into-metacestodes
#10
Hui Wang, Jun Li, Chuanshan Zhang, Baoping Guo, Qin Wei, Liang Li, Ning Yang, Donald Peter McManus, Xiaoli Gao, Wenbao Zhang, Hao Wen
Cystic echinococcosis (CE) is a cosmopolitan parasitic disease caused by infection with the larval stage of Echinococcus granulosus sensu lato. Thioredoxin peroxidase (TPx) may play an essential role in the antioxidant defence system of E. granulosus s.l. as neither catalase nor glutathione peroxidase activities have been detected in the parasite. However, it is not known whether TPx affects the survival and growth of E. granulosus s.l. during development. In this study, three fragments of siRNA specific for EgTPx (siRNA-1/2/3) were designed and transfected into protoscoleces of E...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30474597/redescription-of-the-siamese-shield-leech-placobdelloides-siamensis-with-new-host-species-and-geographic-range
#11
Krittiya Chiangkul, Poramad Trivalairat, Watchariya Purivirojkul
The Siamese shield leech Placobdelloides siamensis (Oka, 1917) Sawyer, 1986 (Euhirudinea: Glossiphoniidae) was collected from five new host species, Southeastern Asian Box Turtle (Cuora amboinensis), Yellow-headed Temple Turtle (Heosemys annandalii), Malayan Snail-eating Turtle (Malayemys macrocephala), Mekong Snail-eating Turtle (M. subtrijuga), and Khorat Snail-eating Turtle (M. khoratensis) and was found for the first time in Udon Thani, Thailand. Examination of live leeches provided, for the first time, data on coloration and the combination of parental care behavior, both carrying cocoons and attaching cocoons to the substrate...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30457552/metazoan-parasite-communities-of-two-deep-sea-elasmobranchs-the-southern-lanternshark-etmopterus-granulosus-and-the-largenose-catshark-apristurus-nasutus-in-the-southeastern-pacific-ocean
#12
Juan F Espínola-Novelo, Rubén Escribano, Marcelo E Oliva
Two deep-sea shark species were obtained as by-catch of the local fishery of the Patagonian toothfish, Dissostichus eleginoides, at depths ranging from 1000 to 2200 m off central and northern Chile. A total of 19 parasite taxa were found in 133 specimens of the southern lanternshark, Etmopterus granulosus, (n = 120) and largenose catshark, Apristurus nasutus, (n = 13). Fourteen taxa (four Monogenea, one Digenea, four Cestoda, one Nematoda, two Copepoda, one Annelida and one Thecostraca) were found in E...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30444487/new-species-of-paracolpenteron-n-gen-and-ancyrocephalus-monogenea-dactylogyridae-inhabiting-the-urinary-bladder-and-gills-of-the-maya-needlefish-strongylura-hubbsi-beloniformes-belonidae-from-chiapas-mexico
#13
Edgar F Mendoza-Franco, Juan M Caspeta-Mandujano, Carlos Ramírez-Martínez
Parasitological examination of the maya needlefish Strongylura hubbsi Collette (Belonidae) from the Rio Lacantún basin in the Montes Azules Biosphere Reserve, Chiapas, Mexico showed that specimens were parasitized by two monogenean species in two different sites: Paracolpenteron hubbsii n. gen., n. sp in the urinary bladder and Ancyrocephalus chiapanensis n. sp in the gill lamellae. Paracolpenteron hubbsii differs from other dactylogyrid species without a haptoral anchor/bar complex infecting the urinary systems, gills and nasal cavities by the general morphology of hooks, a dextral vaginal opening, a tubular male copulatory organ comprising a base from which a coiled shaft arises in counterclockwise direction, and an unarticulated Y-shaped accessory piece...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30444486/effectiveness-of-the-new-integrated-strategy-to-control-the-transmission-of-schistosoma-japonicum-in-china-a-systematic-review-and-meta-analysis
#14
Chunyan Qian, Yuefeng Zhang, Xinyan Zhang, Chao Yuan, Zhichao Gao, Hong Yuan, Jiang Zhong
Since 2004, the national schistosomiasis control strategy in China has shifted from the morbidity control strategy (conventional strategy) to an integrated strategy (new strategy). We investigated the effectiveness of the new strategy and compared it against the conventional strategy. We retrieved from electronic databases the literature regarding the new strategy published from 2000 to 2017. The effect of the new or conventional strategy on infection by Schistosoma japonicum of humans and snails (Oncomelania hupensis) was evaluated with pooled log relative risk (logRR)...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30251952/first-report-on-the-sero-epidemiology-of-toxoplasma-gondii-infection-in-german-roe-deer-capreolus-capreolus
#15
Mike Heddergott, Peter Steinbach, Daniel Pohl, Alain C Frantz
While the roe deer (Capreolus capeolus) is the most important game species in Germany and its venison is popular, there is limited knowledge about the prevalence of Toxoplasma gondii in this animal population in the country, and in wild ungulates in Germany generally. Between 2013 and 2015, we collected 295 blood samples from roe deer belonging to a central German population. Sera were analysed using a modified agglutination test (MAT, cut-off 1:20), and antibodies were detected in 86 of the 295 samples (29%)...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30234482/three-new-species-of-cucullanus-nematoda-cucullanidae-from-marine-fishes-off-new-caledonia-with-a-key-to-species-of-cucullanus-from-anguilliformes
#16
František Moravec, Jean-Lou Justine
Based on light and scanning electron microscopical studies of nematode specimens from the digestive tract of some rarely collected anguilliform and perciform fishes off New Caledonia, three new species of Cucullanus Müller, 1777 (Cucullanidae) are described: C. austropacificus n. sp. from the longfin African conger Conger cinereus (Congridae), C. gymnothoracis n. sp. from the lipspot moray Gymnothorax chilospilus (Muraenidae), and C. incognitus n. sp. from the seabream Dentex fourmanoiri (Sparidae). Cucullanus austropacificus n...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30234481/morphological-and-molecular-characterization-of-onchocerca-fasciata-nematoda-onchocercidae-from-dromedary-camels-camelus-dromedarius-in-iran
#17
Mohammad Mirzaei, Younes Ghahvei, Emilie Lefoulon, Riccardo Paolo Lia, Domenico Otranto, Coralie Martin, Alireza Sazmand
Skin nodules of Onchocerca fasciata Railliet and Henry, 1910 (Spirurida, Onchocercidae) are a common finding in dromedary camels, though with a minimal clinical impact. There is little information about the morphology, molecular make-up and pathological impact of this parasite. Onchocerca fasciata nodules (1.3-2.1 cm in diameter and 509-841 mg in weight) were detected on the neck region in 31.5% of dromedary camels examined in Kerman province, southeastern Iran. Of 38 isolated nodules, only 23 (60.5%) contained viable worms...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30230445/taenia-solium-cysticercosis-in-west-africa-status-update
#18
Jihen Melki, Eugène Koffi, Marcel Boka, André Touré, Man-Koumba Soumahoro, Ronan Jambou
Cysticercosis is caused by the larvae of the cestode Taenia solium. Few data are available on the prevalence of this disease in pigs and humans in West African countries. The aim of this study was to provide an overview of existing data concerning the spread of this parasitosis in the countries of the Economic Community of West African States (ECOWAS) on the basis of the literature published over the last five decades. Systematic searches for publications were carried out on PubMed and Google Scholar, as well as in certain regional and local journals...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30230444/comparison-of-three-commercial-multiplex-pcr-assays-for-the-diagnosis-of-intestinal-protozoa
#19
Brice Autier, Sorya Belaz, Romy Razakandrainibe, Jean-Pierre Gangneux, Florence Robert-Gangneux
Although microscopic examination of stool samples remains the reference method for the diagnosis of intestinal protozoal infections, these techniques are time-consuming and require operators who are experienced and well trained. Molecular biology seems to offer performances at least equivalent in terms of sensitivity and specificity for certain parasites. This study aimed to compare three multiplex PCR assays on 93 prospectively collected positive stools (prospective cohort) and a panel of 12 more Cryptosporidium-positive samples (Cryptosporidium panel)...
2018: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/30207267/the-description-of-two-new-species-of-chloromyxum-from-skates-in-the-argentine-sea-reveals-that-a-limited-geographic-host-distribution-causes-phylogenetic-lineage-separation-of-myxozoans-in-chondrichthyes
#20
Delfina María Paula Cantatore, Manuel Marcial Irigoitia, Astrid Sibylle Holzer, Pavla Bartošová-Sojková, Hana Pecková, Ivan Fiala, Juan Tomás Timi
During a survey on the myxosporean fauna of Rajiformes from the Atlantic coast of Argentina, in waters off Buenos Aires Province (34°-42°S; 53°-62°W), the gall bladders of 217 specimens belonging to seven species of skates, representatives of two families, were examined. As a result, three species of Chloromyxum Mingazzini, 1890, namely C. atlantoraji n. sp., C. zearaji n. sp. and C. riorajum Azevedo, Casal, Garcia, Matos, Teles-Grilo and Matos, 2009 were found infecting three endemic host species, the spotback skate Atlantoraja castelnaui (Arhynchobatidae), the yellownose skate Zearaja chilensis (Rajidae) and the Rio skate Rioraja agassizii (Arhynchobatidae), respectively...
2018: Parasite: Journal de la Société Française de Parasitologie
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