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Parasite: Journal de la Société Française de Parasitologie

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https://www.readbyqxmd.com/read/29034874/pathogenesis-of-plasmodium-berghei-anka-infection-in-the-gerbil-meriones-unguiculatus-as-an-experimental-model-for-severe-malaria
#1
Quazim Olawale Junaid, Loke Tim Khaw, Rohela Mahmud, Kien Chai Ong, Yee Ling Lau, Prajakta Uttam Borade, Jonathan Wee Kent Liew, Sinnadurai Sivanandam, Kum Thong Wong, Indra Vythilingam
BACKGROUND: As the quest to eradicate malaria continues, there remains a need to gain further understanding of the disease, particularly with regard to pathogenesis. This is facilitated, apart from in vitro and clinical studies, mainly via in vivo mouse model studies. However, there are few studies that have used gerbils (Meriones unguiculatus) as animal models. Thus, this study is aimed at characterizing the effects of Plasmodium berghei ANKA (PbA) infection in gerbils, as well as the underlying pathogenesis...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/29027520/further-evidence-associating-igg1-but-not-igg2-with-susceptibility-to-canine-visceral-leishmaniasis-caused-by-leishmania-l-infantum-chagasi-infection
#2
Luciana Vieira do R Lima, Liliane Almeida Carneiro, Marliane Batista Campos, Thiago Vasconcelos Dos Santos, Patrícia Karla Ramos, Márcia Dalastra Laurenti, Claudio Eduardo C Teixeira, Fernando T Silveira
We present here a cross-sectional study analyzing the IgG1 and IgG2 immune responses to natural canine Leishmania (L.) infantum chagasi-infection and their relationships with delayed-type hypersensitivity (DTH) in 50 mongrel dogs with previous positive serodiagnoses (IFAT-IgG) (56% with subclinical status [= apparently healthy] and 44% clinically sick), living in endemic areas for visceral leishmaniasis in the Brazilian Amazon. IgG1 and IgG2 responses were measured using commercial polyclonal antibodies in ELISA, while DTH was elicited by intradermal skin test using cultured promastigotes L...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28971798/cloning-and-characterization-of-an-echinococcus-granulosus-ecdysteroid-hormone-nuclear-receptor-hr3-like-gene
#3
Mei Yang, Jun Li, Jun Wu, Hui Wang, Baoping Guo, Chuanchuan Wu, Xi Shou, Ning Yang, Zhuangzhi Zhang, Donald P McManus, Fuchun Zhang, Wenbao Zhang
Cystic echinococcosis is an important parasitic zoonosis caused by the dog tapeworm Echinococcus granulosus. Little is known about adult worm development at the molecular level. Transcription analysis showed that the E. granulosus hormone receptor 3-like (EgHR3) gene was expressed in protoscoleces and adult worms, indicating its role in early adult development. In this study, we cloned and characterized EgHR3 showing that its cDNA contains an open reading frame (ORF) of 1890 bp encoding a 629 amino acid protein, which has a DNA-binding domain (DBD) and a ligand-binding domain (LBD)...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28971797/epidemiological-survey-of-ticks-and-tick-borne-pathogens-in-pet-dogs-in-south-eastern-china
#4
Jianwei Zhang, Qingbiao Liu, Demou Wang, Wanmeng Li, Frédéric Beugnet, Jinlin Zhou
To understand the epidemiology of tick infestation and tick-borne diseases in pet dogs in south-eastern China and to develop a reference for their prevention and treatment, we collected 1550 ticks parasitizing 562 dogs in 122 veterinary clinics from 20 cities of south-eastern China. Dogs were tested for common tick-borne pathogens; collected ticks were identified and processed for the detection of tick-borne pathogens. The use of an in vitro ELISA diagnostic kit for antibody detection (SNAP®4Dx® Plus) on dog sera found the infection rates with Borrelia burgdorferi sensu lato, Ehrlichia canis, and Anaplasma spp...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28959938/genotypic-profiles-of-leishmania-viannia-braziliensis-strains-from-cutaneous-leishmaniasis-patients-and-their-relationship-with-the-response-to-meglumine-antimoniate-treatment-a-pilot-study
#5
Thalita Gagini, Armando de Oliveira Schubach, Maria de Fatima Madeira, Cláudia Maria Valete-Rosalino, Maria Inês Fernandes Pimentel, Raquel da Silva Pacheco
BACKGROUND: Forty-four strains isolated from a cohort of cutaneous leishmaniasis (CL) patients who did or did not respond to one course of treatment with meglumine antimoniate were investigated to explore genetic polymorphisms in parasite kinetoplast DNA minicircles. Leishmania (Viannia) braziliensis strains isolated from responder (R) and non-responder (NR) patients who acquired infection in Rio de Janeiro or in other Brazilian states were studied using low-stringency single-specific primer polymerase chain reaction (LSSP-PCR) to identify genetic polymorphisms...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28825400/ecology-of-phlebotomine-sandflies-and-putative-reservoir-hosts-of-leishmaniasis-in-a-border-area-in-northeastern-mexico-implications-for-the-risk-of-transmission-of-leishmania-mexicana-in-mexico-and-the-usa
#6
Jorge J Rodríguez-Rojas, Ángel Rodríguez-Moreno, Miriam Berzunza-Cruz, Gabriel Gutiérrez-Granados, Ingeborg Becker, Victor Sánchez-Cordero, Christopher R Stephens, Ildefonso Fernández-Salas, Eduardo A Rebollar-Téllez
Leishmaniases are a group of important diseases transmitted to humans through the bite of sandfly vectors. Several forms of leishmaniases are endemic in Mexico and especially in the Southeast region. In the Northeastern region, however, there have only been isolated reports of cases and scanty records of sandfly vectors. The main objective of this study was to analyze the diversity of sandflies and potential reservoir hosts of Leishmania spp. in the states of Nuevo León and Tamaulipas. Species richness and abundances of sandflies and rodents were recorded...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28792887/the-genetic-basis-for-the-selection-of-dairy-goats-with-enhanced-resistance-to-gastrointestinal-nematodes
#7
Felix Heckendorn, Anna Bieber, Steffen Werne, Anastasios Saratsis, Veronika Maurer, Chris Stricker
Gastrointestinal nematodes (GIN) severely affect small ruminant production worldwide. Increasing problems of anthelmintic resistance have given strong impetus to the search for alternative strategies to control GIN. Selection of animals with an enhanced resistance to GIN has been shown to be successful in sheep. In goats, the corresponding information is comparatively poor. Therefore, the present study was designed to provide reliable data on heritabilities of and genetic correlations between phenotypic traits linked to GIN and milk yield in two major dairy goat breeds (Alpine and Saanen)...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28770713/detection-and-multilocus-genotyping-of-giardia-duodenalis-in-dogs-in-sichuan-province-china
#8
Yue Zhang, Zhijun Zhong, Lei Deng, Maoqing Wang, Wei Li, Chao Gong, Hualin Fu, Suizhong Cao, Xianpeng Shi, Kongju Wu, Guangneng Peng
Giardia duodenalis (also known as G. intestinalis) is a flagellated protozoan that parasitizes the small intestine and is a common causal agent of zoonotic infections in humans and animals. To assess the genetic diversity and zoonotic transmission potential of G. duodenalis in stray dogs, 159 fecal specimens were collected from dogs in Chengdu, Yaan, and Leshan in Sichuan province, China. Of the 159 fecal samples from stray dogs, 18 (11.3%) were G. duodenalis-positive based on nested PCR amplification of the beta giardin (bg) gene, and the occurrence varied from 1...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28766501/sarcocystis-spp-in-domestic-sheep-in-kunming-city-china-prevalence-morphology-and-molecular-characteristics
#9
Jun-Jie Hu, Si Huang, Tao Wen, Gerald W Esch, Yu Liang, Hong-Liang Li
Sheep (Ovis aries) are intermediate hosts for at least six named species of Sarcocystis: S. tenella, S. arieticanis, S. gigantea, S. medusiformis, S. mihoensis, and S. microps. Here, only two species, S. tenella and S. arieticanis, were found in 79 of 86 sheep (91.9%) in Kunming, China, based on their morphological characteristics. Four genetic markers, i.e., 18S rRNA gene, 28S rRNA gene, mitochondrial cox1 gene, and ITS-1 region, were sequenced and characterized for the two species of Sarcocystis. Sequences of the three former markers for S...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28748783/detection-of-echinococcus-multilocularis-and-other-foodborne-parasites-in-fox-cat-and-dog-faeces-collected-in-kitchen-gardens-in-a-highly-endemic-area-for-alveolar-echinococcosis
#10
Marie-Lazarine Poulle, Matthieu Bastien, Yolan Richard, Émilie Josse-Dupuis, Dominique Aubert, Isabelle Villena, Jenny Knapp
Echinococcus multilocularis, Toxoplasma gondii and Toxocara spp. are foodborne parasites whose eggs or oocysts are spread in the environment via canid or felid faeces. They can cause infections in humans following the raw consumption of contaminated fruit or vegetables. In this study, their occurrence was investigated by quantitative polymerase chain reaction (qPCR) in 254 carnivore faeces deposited in 94 kitchen gardens of northeastern France that were sampled between two and six times from October 2011 to April 2013...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28737135/a-flotation-sieving-method-to-detect-echinococcus-multilocularis-and-toxocara-spp-eggs-in-soil-by-real-time-pcr
#11
Gérald Umhang, Matthieu Bastien, Camille Renault, Marine Faisse, Christophe Caillot, Jean-Marc Boucher, Vanessa Hormaz, Marie-Lazarine Poulle, Franck Boué
Soil can be a source of human infection by many zoonotic helminth species including Echinococcus multilocularis and Toxocara spp. The prevention of alveolar echinococcosis could be greatly improved through the identification of at-risk areas. Yet very few data are available about the detection of E. multilocularis in soil, while more studies have been reported for Toxocara spp. Identification of soil contamination by E. multilocularis eggs requires the use of specific methods. This study describes the development of a method for the detection of E...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28730993/seroepidemiology-of-sarcocystis-neurona-and-neospora-hughesi-infections-in-domestic-donkeys-equus-asinus-in-durango-mexico
#12
Cosme Alvarado-Esquivel, Daniel K Howe, Michelle R Yeargan, Domingo Alvarado-Esquivel, José Alfredo Zamarripa-Barboza, Jitender P Dubey
There is currently no information regarding Sarcocystis neurona and Neospora hughesi infections in donkeys in Mexico. Here, we determined the presence of antibodies against S. neurona and N. hughesi in donkeys in the northern Mexican state of Durango. Serum samples of 239 domestic donkeys (Equus asinus) were assayed for S. neurona and N. hughesi antibodies using home-made enzyme-linked immunoassays; six (2.5%) of the 239 donkeys tested seropositive for S. neurona. The seroprevalence of S. neurona infection was comparable among donkeys regardless of their origin, health status, or sex...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28730992/an-illustrated-guide-for-characters-and-terminology-used-in-descriptions-of-phlebotominae-diptera-psychodidae
#13
Eunice A B Galati, Fredy Galvis-Ovallos, Phillip Lawyer, Nicole Léger, Jérôme Depaquit
Phlebotomine (Diptera, Psychodidae, Phlebotominae) taxonomy has been studied extensively, primarily due to the role of these flies as vectors of various parasites, including species of Leishmania, Bartonella and arboviruses that cause diseases in humans and other vertebrates. We present some topics discussed at a round-table on phlebotomine taxonomy held at the Ninth International Symposium on Phlebotomine Sandflies (ISOPS IX) in Reims, France, in June 2016. To date, approximately one thousand phlebotomine species have been described worldwide, although in varying languages and mostly without standardization of characters and terminology...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28695821/an-outbreak-of-locally-acquired-plasmodium-vivax-malaria-among-migrant-workers-in-oman
#14
Bruno Simon, Fatimata Sow, Said K Al Mukhaini, Seif Al-Abri, Osama A M Ali, Guillaume Bonnot, Anne-Lise Bienvenu, Eskild Petersen, Stéphane Picot
Plasmodium vivax is the most widely distributed human malaria parasite. Outside sub-Saharan Africa, the proportion of P. vivax malaria is rising. A major cause for concern is the re-emergence of Plasmodium vivax in malaria-free areas. Oman, situated in the south-eastern corner of the Arabian Peninsula, has long been an area of vivax malaria transmission but no locally acquired cases were reported in 2004. However, local transmission has been registered in small outbreaks since 2007. In this study, a local outbreak of 54 cases over 50 days in 2014 was analyzed retrospectively and stained blood slides have been obtained for parasite identification and genotyping...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28664841/is-galba-schirazensis-mollusca-gastropoda-an-intermediate-host-of-fasciola-hepatica-trematoda-digenea-in-ecuador
#15
Yannick Caron, Maritza Celi-Erazo, Sylvie Hurtrez-Boussès, Mannon Lounnas, Jean-Pierre Pointier, Claude Saegerman, Bertrand Losson, Washington Benítez-Ortíz
Fasciolosis is a widely distributed disease in livestock in South America but knowledge about the epidemiology and the intermediate hosts is relatively scarce in Ecuador. For three months, lymnaeid snails were sampled (n = 1482) in Pichincha Province at two sites located in a highly endemic area. Snails were identified (based on morphology and ITS-2 sequences) and the infection status was established through microscopic dissection and a multiplex polymerase chain reaction (PCR)-based technique. Techniques based on morphology were not useful to accurately name the collected snail species...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28643630/molecular-phylogeny-of-42-species-of-culicoides-diptera-ceratopogonidae-from-three-continents
#16
Denis Augot, Bruno Mathieu, Leila Hadj-Henni, Véronique Barriel, Sonia Zapata Mena, Sylvia Smolis, Darine Slama, Fano José Randrianambinintsoa, Gabriel Trueba, Matthieu Kaltenbach, Nil Rahola, Jérôme Depaquit
The genus Culicoides includes vectors of important animal diseases such as bluetongue and Schmallenberg virus (BTV and SBV). This genus includes 1300 species classified in 32 subgenera and 38 unclassified species. However, the phylogenetic relationships between different subgenera of Culicoides have never been studied. Phylogenetic analyses of 42 species belonging to 12 subgenera and 8 ungrouped species of genus Culicoides from Ecuador, France, Gabon, Madagascar and Tunisia were carried out using two molecular markers (28S rDNA D1 and D2 domains and COI mtDNA)...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28627357/the-heat-shock-protein-90-of-toxoplasma-gondii-is-essential-for-invasion-of-host-cells-and-tachyzoite-growth
#17
Hongchao Sun, Xunhui Zhuo, Xianfeng Zhao, Yi Yang, Xueqiu Chen, Chaoqun Yao, Aifang Du
Toxoplasma gondii is an obligate intracellular apicomplexan parasite that infects almost all warm-blooded vertebrates. Heat shock proteins (HSP) regulate key signal transduction events in many organisms, and heat shock protein 90 (Hsp90) plays an important role in growth, development, and virulence in several parasitic protozoa. Here, we discovered increased transcription of the Hsp90 gene under conditions for bradyzoite differentiation, i.e. alkaline and heat shock conditions in vitro, suggesting that Hsp90 may be connected with bradyzoite development in T...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28617666/parasitic-diseases-of-camels-in-iran-1931-2017-a-literature-review
#18
Alireza Sazmand, Anja Joachim
Parasitic diseases of camels are major causes of impaired milk and meat production, decreases in performance or even death. Some camel parasites also represent a threat to human health. About 171,500 one-humped camels (Camelus dromedarius) and 100-300 two-humped camels (Camelus bactrianus) live in Iran. Knowledge of the biodiversity of their parasites is still limited. The present review covers all information about camel parasitic diseases in Iran published as dissertations and in both Iranian and international journals from 1931 to February 2017...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28593838/attractiveness-of-black-and-white-modified-shannon-traps-to-phlebotomine-sandflies-diptera-psychodidae-in-the-brazilian-amazon-basin-an-area-of-intense-transmission-of-american-cutaneous-leishmaniasis
#19
Andreia Fernandes Brilhante, Márcia Moreira de Ávila, Jailson Ferreira de Souza, Antônio Ralph Medeiros-Sousa, Priscila Bassan Sábio, Marcia Bicudo de Paula, Rodrigo Espindola Godoy, Leonardo Augusto Kohara Melchior, Vânia Lúcia Brandão Nunes, Cristiane de Oliveira Cardoso, Eunice Aparecida Bianchi Galati
In the Amazon region the phlebotomine fauna is considered one of the most diverse in the world. The use of Shannon traps may provide information on the anthropophily of the species and improve the traps' performance in terms of diversity and quantity of insects collected when white and black colored traps are used together. This study sought to verify the attractiveness of the traps to the phlebotomine species of the Brazilian Amazon basin using Shannon traps under these conditions. The insects were collected using two Shannon traps installed side by side, one white and the other black, in a primary forest area of the municipality of Xapuri, Acre, Brazil...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28593837/rhadinorhynchus-oligospinosus-n-sp-acanthocephala-rhadinorhynchidae-from-mackerels-in-the-pacific-ocean-off-peru-and-related-rhadinorhynchids-in-the-pacific-with-notes-on-metal-analysis
#20
Omar M Amin, Richard A Heckmann
Specimens of a new species of Rhadinorhynchus Lühe, 1911 are described from the chub mackerel Scomber japonicus (Scombridae) and the Chilean Jack mackerel Trachurus murphyi (Carangidae) (possibly a subspecies of Trachurus symmetricus) from the Pacific Ocean off the Peruvian coast at the Port of Chicama, La Libertad. Specimens of Rhadinorhynchus oligospinosus n. sp. are somewhat small having 11-14 rows of alternating proboscis hooks with 20-22 hooks each with posteriormost hooks in a continuous ring. Ventral hooks are robust with prominent roots but dorsal hooks are slender and shorter with discoid roots...
2017: Parasite: Journal de la Société Française de Parasitologie
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