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Parasite: Journal de la Société Française de Parasitologie

Yuriy Kvach, Isaure de Buron
A species of acanthocephalan new to science from soleid fishes in the Mediterranean Sea and the Sea of Marmara is described. The new species is characterised by individuals having a club-shaped proboscis armed with 12-13 rows of 6-7 rooted hooks of a single type, a basal cerebral ganglion, and tegumental spines on the anterior two thirds of the body. Males have six cement glands and females show spines around the genital opening. To accommodate this species, a new genus, Harpagorhynchus n. gen., and a new subfamily in Echinorhynchidae, Harpagorhynchinae n...
2019: Parasite: Journal de la Société Française de Parasitologie
Omar Mohamed Amin, Richard Anderson Heckmann, Sara Dallarés, María Constenla, Nguyen Van Ha
Rhadinorhynchus laterospinosus Amin, Heckmann & Ha, 2011 (Rhadinorhynchidae) was described from a single female collected from a trigger fish, Balistes sp. (Balistidae) from the northern Pacific coast of Vietnam in Halong Bay, Gulf of Tonkin. More recent collections of fishes in 2016 and 2017 revealed wider host and geographical distributions. We report this Acanthocephala from nine species of fish representing six families (including the original record from Balistes sp.) along the whole Pacific coast of Vietnam...
2019: Parasite: Journal de la Société Française de Parasitologie
Tudor Rares Olariu, Cindy Press, Jeanne Talucod, Kjerstie Olson, José Gilberto Montoya
We assessed clinical and serologic findings in 25 infants with congenital toxoplasmosis born to mothers treated during pregnancy in the United States. Results indicate a lower prevalence of eye findings and hydrocephalus in the group of infants born to treated mothers (62.5% and 38.5%, respectively) compared to results on the same pathologies reported in our previous cohort of infants born to untreated mothers (92.2% and 67.7%, respectively). The sensitivity of the IgM ISAGA and IgA ELISA in the present study were lower (44% and 60%, respectively) compared to sensitivity of these methods in our previously studied group of infants born to untreated mothers (86...
2019: Parasite: Journal de la Société Française de Parasitologie
Zaki M Al-Hasawi
Studies on host-parasite systems as bioindicators for monitoring trace metal pollution in marine environments are still scarce. Here, 11, 14 and 17 infrapopulations of Gyliauchen volubilis (Trematoda: Digenea), Procamallanus elatensis (Nematoda) and Sclerocollum rubrimaris (Acanthocephala), respectively, were collected from the fish Siganus rivulatus (Siganidae) in the Red Sea, from a chronically polluted small bay at Sharm El-Sheikh, South Sinai, Egypt. Water and sediment samples from the bay, tissue samples (intestines, liver, and muscle) from each fish, and samples from each parasite were taken for heavy metal analyses of cadmium and lead...
2019: Parasite: Journal de la Société Française de Parasitologie
Antoine Huguenin, Jérôme Depaquit, Isabelle Villena, Hubert Ferté
Identification of cercariae was long based on morphological and morphometric features, but these approaches remain difficult to implement and require skills that have now become rare. Molecular tools have become the reference even though they remain relatively time-consuming and expensive. We propose a new approach for the identification of cercariae using MALDI-TOF mass spectrometry. Snails of different genera (Radix, Lymnaea, Stagnicola, Planorbis, and Anisus) were collected in the field to perform emitting tests in the laboratory...
2019: Parasite: Journal de la Société Française de Parasitologie
Jérôme Depaquit, Mohammad Akhoundi, Djamel Haouchine, Stéphane Mantelet, Arezki Izri
Schistosomiasis is one of the most significant parasitic diseases of humans. The hybridization of closely related Schistosoma species has already been documented. However, hybridization between phylogenetically distant species is unusual. In the present study, we characterized the causative agent of schistosomiasis in a 14-year-old patient with hematuria from Côte d'Ivoire, using morphological and molecular approaches. A 24-hour parasitological examination of urine showed the presence of numerous eggs (150 μm long × 62 μm wide) with a lateral spine (25 μm), identified morphologically as Schistosoma mansoni...
2019: Parasite: Journal de la Société Française de Parasitologie
Thouraya Boussoffara, Mohamed Samir Boubaker, Melika Ben Ahmed, Mourad Mokni, Ikram Guizani, Afif Ben Salah, Hechmi Louzir
Lesion features in cutaneous leishmaniasis (CL) depend on the infecting Leishmania species as well as on host immune reponse. In this study, we evaluated the histological and immunological differences between two forms of CL described in Tunisia: zoonotic cutaneous leishmaniasis (ZCL) caused by L. major and sporadic cutaneous leishmaniasis (SCL) caused by L. infantum. Histological analysis showed a mild to moderate infiltrate within ZCL lesions. In contrast, massive infiltration of the dermis was observed within SCL lesions...
2019: Parasite: Journal de la Société Française de Parasitologie
Benjakhun Sangtongpraow, Kosol Charernsom
Quadrastichus mendeli Kim & La Salle, a parasitoid of Leptocybe invasa Fisher & La Salle, is a uniparental species. This study assessed the biological traits of Q. mendeli in the laboratory at a temperature of 27 ± 1 °C. Diets had a highly significant effect on the mean longevity of female Q. mendeli. Feeding honey solution prolonged the mean longevity of the parasitoid to 4.80 days. The estimated 50% survival period was 3 days. The mean potential fecundity in all ages was 8.85 eggs per female...
2019: Parasite: Journal de la Société Française de Parasitologie
Zongping Zhao, Qiping Zhao, Shunhai Zhu, Bing Huang, Ling Lv, Ting Chen, Ming Yan, Hongyu Han, Hui Dong
Eimeria tenella is an obligate intracellular parasite that actively invades cecal epithelial cells of chickens. When E. tenella infects a host cell, the host produces a corresponding change to deal with damage caused by this infection. To date, our knowledge on the mechanism of how the host cell responds to E. tenella infection is highly limited at both the molecular and cellular levels. In this study, isobaric tags for relative and absolute quantitation (iTRAQ) coupled with LC-MS/MS was used to screen the differentially expressed proteins (DEPs) in BHK-21 cells infected with E...
2019: Parasite: Journal de la Société Française de Parasitologie
Mariem Rouatbi, Safa Amairia, Yosra Amdouni, Mohamed Anis Boussaadoun, Ouarda Ayadi, Amira Adel Taha Al-Hosary, Mourad Rekik, Rym Ben Abdallah, Karim Aoun, Mohamed Aziz Darghouth, Barbara Wieland, Mohamed Gharbi
Toxoplasmosis is an important zoonosis caused by an obligate intracellular parasitic protozoan, Toxoplasma gondii. The disease is distributed worldwide and can affect all warm-blooded vertebrates, including humans. The present review aimed to collect, compile and summarize the data on the prevalence of T. gondii infection in humans and animals in the five North African countries (Morocco, Algeria, Tunisia, Libya and Egypt). Published data from national and international databases were used. Distribution patterns and risk factors for T...
2019: Parasite: Journal de la Société Française de Parasitologie
Gustave Simo, Sartrien Tagueu Kanté, Joule Madinga, Ginette Kame, Oumarou Farikou, Gillon Ilombe, Anne Geiger, Pascal Lutumba, Flobert Njiokou
During the last 30 years, investigations on the microbiome of different tsetse species have generated substantial data on the bacterial flora of these cyclical vectors of African trypanosomes, with the overarching goal of improving the control of trypanosomiases. It is in this context that the presence of Wolbachia and Sodalis glossinidius was studied in wild populations of Glossina fuscipes quanzensis from the Democratic Republic of Congo. Tsetse flies were captured with pyramidal traps. Of the 700 Glossina f...
2019: Parasite: Journal de la Société Française de Parasitologie
Shuai Zhang, Tingting Zhi, Xiangli Xu, Yingying Zheng, Charles Félix Bilong Bilong, Antoine Pariselle, Tingbao Yang
Tilapias are important aquaculture fishes that have been introduced widely all over the world, often carrying their monogenean parasites with them. An extensive investigation on monogeneans of invasive tilapias was conducted in 19 natural water sources in south China between July 2015 and December 2017. We found nine known species of monogeneans, i.e., Enterogyrus coronatus, E. malmbergi, Cichlidogyrus cirratus, C. halli, C. sclerosus, C. thurstonae, C. tilapiae, Scutogyrus longicornis, Gyrodactylus cichlidarum, and one unknown Gyrodactylus species...
2019: Parasite: Journal de la Société Française de Parasitologie
Jessica N Hofstetter, Fernanda S Nascimento, Subin Park, Shannon Casillas, Barbara L Herwaldt, Michael J Arrowood, Yvonne Qvarnstrom
Cyclospora cayetanensis is a human parasite transmitted via ingestion of contaminated food or water. Cases of C. cayetanensis infection acquired in the United States often go unexplained, partly because of the difficulties associated with epidemiologic investigations of such cases and the lack of genotyping methods. A Multilocus Sequence Typing (MLST) method for C. cayetanensis based on five microsatellite loci amplified by nested PCR was described in 2016. The MLST loci had high variability, but many specimens could not be assigned a type because of poor DNA sequencing quality at one or more loci...
2019: Parasite: Journal de la Société Française de Parasitologie
Elena Shaikevich, Anna Bogacheva, Ludmila Ganushkina
Dirofilariasis is endemic in Russia, as well as in many other European countries. The aim of this study was to assess the ability of mosquitoes to transfer Dirofilaria immitis and Dirofilaria repens in regions with temperate and subtropical climates. The possible impact of the symbiotic bacterium Wolbachia on Dirofilaria transmission was also investigated. 5333 female mosquitoes were collected at 11 points in central European Russia and on the Black Sea coast during the period 2013-2017. Out of 20 mosquito species examined, 14 were infected with D...
2019: Parasite: Journal de la Société Française de Parasitologie
Wilfried Lebon, Jacques Guillot, Maria-Jesús Álvarez, José Antonio Bazaga, Marie-Laure Cortes-Dubly, Pascal Dumont, Marianne Eberhardt, Héctor Gómez, Olivier Pennant, Noémie Siméon, Frederic Beugnet, Lénaïg Halos
In the past decade, canine thelaziosis due to Thelazia callipaeda has been diagnosed in an increasing number of European countries, with endemic areas being identified. A multi-center field trial was conducted in endemic areas in France and Spain to evaluate the efficacy of monthly administrations of the oral milbemycin oxime/afoxolaner combination (NexGard Spectra® ) for the prevention of T. callipaeda infection in at-risk dogs. A total of 79 dogs negative for T. callipaeda and with a clinical history of eyeworm infection in the past two years completed the study...
2019: Parasite: Journal de la Société Française de Parasitologie
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
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
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
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
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
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