Parasite最新文献_第10页

On the systematics of Phlebotomus betisi and two new related species from Laos with proposal of the new subgenus Lewisius. 老挝贝氏白蛉及两新近缘种的系统分类学研究及新亚属的建立。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 DOI: 10.1051/parasite/2023021

Khamsing Vongphayloth, Fano José Randrianambinintsoa, Khaithong Lakeomany, Nothasine Phommavanh, Nalia Mekarnia, Mohd Shahar Khadri, Matthieu L Kaltenbach, Antoine Huguenin, Jean-Philippe Martinet, Jérôme Depaquit

{"title":"On the systematics of Phlebotomus betisi and two new related species from Laos with proposal of the new subgenus Lewisius.","authors":"Khamsing Vongphayloth, Fano José Randrianambinintsoa, Khaithong Lakeomany, Nothasine Phommavanh, Nalia Mekarnia, Mohd Shahar Khadri, Matthieu L Kaltenbach, Antoine Huguenin, Jean-Philippe Martinet, Jérôme Depaquit","doi":"10.1051/parasite/2023021","DOIUrl":"https://doi.org/10.1051/parasite/2023021","url":null,"abstract":"Phlebotomus betisi was described from Malaysia and classified after its description in the subgenus Larroussius. It was the only species to have a pharyngeal armature composed of dot-like teeth and an annealed spermatheca whose head is carried by a neck in females. Males were characterized by having a style bearing five spines and a simple paramere. The study of sandflies originating from a cave in Laos enabled us to discover and describe two sympatric species close to Ph. betisi Lewis & Wharton, 1963 and new for Science: Ph. breyi Vongphayloth & Depaquit n. sp., and Ph. sinxayarami Vongphayloth & Depaquit n. sp. They were characterized morphologically, morphometrically, geomorphometrically, molecularly, and proteomically (MALDI-TOF). All approaches converged to validate the individualization of these species whose morphological differential characters lay in the two genders by the observation of the interocular suture and by the length of the last two segments of the maxillary palps. In males, the length of the genital filaments discriminates these species. Females are distinguished by the length of the ducts of the spermathecae as well as by the narrow or enlarged shape of the neck bearing their head. Lastly, the particular position of the spines of the gonostyle coupled with molecular phylogeny led us to remove these three species from the subgenus Larroussius Nizulescu, 1931 and to classify them in a new subgenus: Lewisius Depaquit & Vongphayloth n. subg.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"21"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10252460/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9663826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular phylogeny of Psychodopygina (Diptera, Psychodidae) supporting morphological systematics of this group of vectors of New World tegumentary leishmaniasis. 双翅目麻风蝇科麻风蝇的分子系统发育及对该群新发利什曼病媒介的形态学系统支持。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 DOI: 10.1051/parasite/2023018

Sonia Zapata, Eunice A B Galati, Jaime A Chaves, Patricio Artigas, Jean-Charles Gantier, Maria Dolores Bargues, Santiago Mas-Coma, Jérôme Depaquit

{"title":"Molecular phylogeny of Psychodopygina (Diptera, Psychodidae) supporting morphological systematics of this group of vectors of New World tegumentary leishmaniasis.","authors":"Sonia Zapata, Eunice A B Galati, Jaime A Chaves, Patricio Artigas, Jean-Charles Gantier, Maria Dolores Bargues, Santiago Mas-Coma, Jérôme Depaquit","doi":"10.1051/parasite/2023018","DOIUrl":"https://doi.org/10.1051/parasite/2023018","url":null,"abstract":"New World sandflies are vectors of leishmaniasis, bartonellosis, and some arboviruses. A classification based on 88 morphological characters was proposed 27 years ago when the New World phlebotomines were organized into two tribes Hertigiini and Phlebotomini. The latter was structured into four subtribes (Brumptomyiina, Sergentomyiina, Lutzomyiina, and Psychodopygina) and 20 genera. The subtribe Psychodopygina, including most of the American vectors of tegumentary Leishmania comprises seven genera from which no molecular work has been produced to support this classification. Here, we carried out a molecular phylogeny based on combined sequences (1,334 bp) of two genes: partial 28S rDNA and mtDNA cytochrome b from 47 taxa belonging to the Psychodopygina. The Bayesian phylogenetic reconstruction agreed with the classification based on morphological characters, supporting the monophyly of the genera Psychodopygus and Psathyromyia, whereas Nyssomyia and Trichophoromyia seemed to be paraphyletic. The paraphylies of the two latter groups were exclusively caused by the doubtful position of the species Ny. richardwardi. Our molecular analysis provides additional support to adopt the morphologic classification of Psychodopygina.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"18"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10208044/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9876100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiation dose-fractionation in adult Aedes aegypti mosquitoes. 埃及伊蚊成蚊的辐射剂量分级。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 DOI: 10.1051/parasite/2023005

Hanano Yamada, Hamidou Maïga, Carina Kraupa, Nanwintoum Séverin Bimbilé Somda, Wadaka Mamai, Thomas Wallner, Jeremy Bouyer

{"title":"Radiation dose-fractionation in adult Aedes aegypti mosquitoes.","authors":"Hanano Yamada, Hamidou Maïga, Carina Kraupa, Nanwintoum Séverin Bimbilé Somda, Wadaka Mamai, Thomas Wallner, Jeremy Bouyer","doi":"10.1051/parasite/2023005","DOIUrl":"https://doi.org/10.1051/parasite/2023005","url":null,"abstract":"Balancing process efficiency and adult sterile male biological quality is one of the challenges in the success of the sterile insect technique (SIT) against insect pest populations. For the SIT against mosquitoes, many stress factors need to be taken into consideration when producing sterile males that require high biological quality to remain competitive once released in the field. Pressures of mass rearing, sex sorting, irradiation treatments, packing, transport and release including handling procedures for each step, add to the overall stress budget of the sterile male post-release. Optimizing the irradiation step to achieve maximum sterility while keeping off-target somatic damage to a minimum can significantly improve male mating competitiveness. It is therefore worth examining various protocols that have been found to be effective in other insect species, such as dose fractionation. A fully sterilizing dose of 70 Gy was administered to Aedes aegypti males as one acute dose or fractionated into either two equal doses of 35 Gy, or one low dose of 10 Gy followed by a second dose of 60 Gy. The two doses were separated by either 1- or 2-day intervals. Longevity, flight ability, and mating competitiveness tests were performed to identify beneficial effects of the various treatments. Positive effects of fractionating dose were seen in terms of male longevity and mating competitiveness. Although applying split doses generally improved male quality parameters, the benefits may not outweigh the added labor in SIT programmes for the management of mosquito vectors.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"5"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9912927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10738038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Nearctic Dactylogyrus species (Platyhelminthes, Monogenea) parasitizing cypriniform fishes in the context of morphology and phylogeny, with descriptions of seven new species. 寄生于鲤形鱼类的新北极Dactylogyrus种(platyhelmintes, Monogenea)的形态和系统发育，附7个新种的描述。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 DOI: 10.1051/parasite/2023032

Eva Řehulková, Mária Seifertová, Kateřina Francová, Andrea Šimková

{"title":"Nearctic Dactylogyrus species (Platyhelminthes, Monogenea) parasitizing cypriniform fishes in the context of morphology and phylogeny, with descriptions of seven new species.","authors":"Eva Řehulková, Mária Seifertová, Kateřina Francová, Andrea Šimková","doi":"10.1051/parasite/2023032","DOIUrl":"https://doi.org/10.1051/parasite/2023032","url":null,"abstract":"Ribosomal DNA sequences are currently available for 32 morphologically recognized species of Dactylogyrus parasitizing Nearctic cypriniforms, but only 16 of them are assigned to nominal species. Herein, morphological data on 28 of the 32 species are provided, together with comments on their phylogenetic relationships in the context of the morphology of taxonomically important structures. Seven new species of Dactylogyrus are described from five species of leuciscids and one species of catostomids, as follows: D. aduncus n. sp. from Campostoma spadiceum, D. cloutmani n. sp. from Luxilus chrysocephalus isolepis, D. cornifrons n. sp. from Cyprinella venusta, D. fimbratus n. sp. from Rhinichthys cataractae, D. mcallisteri n. sp. from Semotilus atromaculatus, and D. chieni n. sp. and D. haneki n. sp. from Hypentelium nigricans. Four previously described species of Dactylogyrus, D. atromaculatus from S. atromaculatus, D. eos from C. neogaeus, D. parvicirrus from Notemigonus crysoleucas and D. perlus from L. c. isolepis, are redescribed and/or figured. As for the remaining 17 species, only the male copulatory organs (MCOs) taken from the respective hologenophores are illustrated. On the basis of phylogenetic analyses, two main clades of Nearctic Dactylogyrus were recognized and supported by the different morphology of the MCO. The first one included 22 strictly Nearctic species sharing the same MCO type with Dactylogyrus spp. parasitizing cyprinids likely of Asian origin. The second clade encompassed Dactylogyrus spp. with diverse MCO morphology and was placed in the sister position to Dactylogyrus spp. parasitizing European leuciscids and North-West African cyprinids.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"30"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10433842/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10044142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence and distribution of subtypes of Blastocystis in Asiatic brush-tailed porcupines (Atherurus macrourus), bamboo rats (Rhizomys pruinosus), and masked palm civets (Paguma larvata) farmed in Hainan, China. 在中国海南养殖的亚洲刷尾豪猪（Atherurus macurus）、竹鼠（Rhizomys prinosus）和蒙面果子狸（Paguma larvata）中芽囊原虫亚型的患病率和分布。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 Epub Date: 2023-11-02 DOI: 10.1051/parasite/2023048

Wei Zhao, Yun Zhang, Jiaqi Li, Guangxu Ren, Yu Qiang, Yuan Wang, Xiuyi Lai, Sheng Lei, Rui Liu, Yuankun Chen, Huicong Huang, Wenting Li, Gang Lu, Feng Tan

{"title":"Prevalence and distribution of subtypes of Blastocystis in Asiatic brush-tailed porcupines (Atherurus macrourus), bamboo rats (Rhizomys pruinosus), and masked palm civets (Paguma larvata) farmed in Hainan, China.","authors":"Wei Zhao, Yun Zhang, Jiaqi Li, Guangxu Ren, Yu Qiang, Yuan Wang, Xiuyi Lai, Sheng Lei, Rui Liu, Yuankun Chen, Huicong Huang, Wenting Li, Gang Lu, Feng Tan","doi":"10.1051/parasite/2023048","DOIUrl":"10.1051/parasite/2023048","url":null,"abstract":"Blastocystis sp. is an important gastrointestinal parasite with global distribution, prevalent in humans, farmed animals, and wildlife. Therefore, this study aimed to investigate the prevalence and genetic diversity of Blastocystis sp. in Asiatic brush-tailed porcupines (Atherurus macrourus), bamboo rats (Rhizomys pruinosus), and masked palm civets (Paguma larvata) in Hainan Province, China. A total of 900 fecal samples were collected from three farmed animal species including 257 porcupines, 360 rats, and 283 civets. Genomic DNA was extracted from each fecal sample and Blastocystis sp. was detected by PCR at the small subunit ribosomal RNA (SSU rRNA) gene. A phylogenetic tree was constructed using the maximum likelihood method. Blastocystis sp. was detected in 47 (5.2%) fecal samples: 12 (4.7%) Asiatic brush-tailed porcupines, 8 (2.2%) bamboo rats, and 27 (9.5%) masked palm civets. Three known Blastocystis sp. subtypes, including ST1, ST4, ST5, and one unnamed subtype (unST), were found in one, 19, 26, and one animal, respectively. Subtypes ST4 and unST were detected in porcupines, ST4 in rats, and ST1 and ST5 in civets. Our results suggest that the three farmed animal species reported in this study could serve as reservoirs for potentially zoonotic Blastocystis sp. subtypes and transmit this parasite to humans, other farmed animals, and wildlife.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"45"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10624160/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71425826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seroepidemiology of toxoplasmosis in pregnant women and detection of infection acquired during pregnancy in Cotonou, Benin. 贝宁科托努孕妇弓形虫病的血清流行病学和妊娠期感染的检测。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 Epub Date: 2023-10-19 DOI: 10.1051/parasite/2023040

Richard Amagbégnon, Celia Dechavanne, Magalie Dambrun, Urielle Yehouénou, Noé Akondé, Florence Migot-Nabias, Aretas Babatoundé Nounnagnon Tonouhéwa, Azra Hamidović, Nadine Fievet, Angéline Tonato-Bagnan, Aurore Ogouyemi-Hounto, Maroufou Jules Alao, Marie-Laure Dardé, Aurélien Mercier, Dorothée Kindé-Gazard

{"title":"Seroepidemiology of toxoplasmosis in pregnant women and detection of infection acquired during pregnancy in Cotonou, Benin.","authors":"Richard Amagbégnon, Celia Dechavanne, Magalie Dambrun, Urielle Yehouénou, Noé Akondé, Florence Migot-Nabias, Aretas Babatoundé Nounnagnon Tonouhéwa, Azra Hamidović, Nadine Fievet, Angéline Tonato-Bagnan, Aurore Ogouyemi-Hounto, Maroufou Jules Alao, Marie-Laure Dardé, Aurélien Mercier, Dorothée Kindé-Gazard","doi":"10.1051/parasite/2023040","DOIUrl":"10.1051/parasite/2023040","url":null,"abstract":"Assessing the prevalence of toxoplasmosis in pregnant women and the associated risk factors is the first step in defining policy for the prevention of congenital toxoplasmosis in a given population. An epidemiological study was conducted during prenatal consultations at the CHU-MEL of Cotonou (Benin) between September 2018 and April 2021 and recruited 549 pregnant women to determine the seroprevalence and potential factors associated with Toxoplasma gondii infection. Toxoplasma gondii IgG/IgM antibodies were detected using an enzyme-linked fluorescence assay (ELFA) technique, an IgG avidity test and an IgG/IgM comparative Western blot to diagnose the maternal toxoplasmosis serological status, the possibility of an infection acquired during pregnancy and congenital infection, respectively. Concomitantly, the participants answered a questionnaire investigating potential risk factors. Toxoplasmosis seroprevalence was estimated at 44.4% (95% CI 40.3-48.6) and the factors significantly associated with T. gondii seropositivity were: age over 30 years, multigravid women and contact with cats. The possibility of an infection acquired during the periconceptional period or the first trimester of pregnancy concerned six women [1.1% (95% CI 0.5-2.0)]. However, due to the low rate of serological controls in seronegative women, a significant proportion of women first tested during the 3rd trimester of pregnancy, and an insufficient sample size, the incidence of primary infection during pregnancy could not be determined. No cases of congenital transmission occurred in the newborns from the suspected cases of primary infection.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"43"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10586240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49680768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chromosome analysis and the occurrence of B chromosomes in fish parasite Acanthocephalus anguillae (Palaeacanthocephala: Echinorhynchida). 鱼类寄生虫棘头鱼的染色体分析和B染色体的发生（棘头鱼：棘头鱼）。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 Epub Date: 2023-10-23 DOI: 10.1051/parasite/2023045

Martina Orosová, Anna Marková, Magda Zrzavá, František Marec, Mikuláš Oros

{"title":"Chromosome analysis and the occurrence of B chromosomes in fish parasite Acanthocephalus anguillae (Palaeacanthocephala: Echinorhynchida).","authors":"Martina Orosová, Anna Marková, Magda Zrzavá, František Marec, Mikuláš Oros","doi":"10.1051/parasite/2023045","DOIUrl":"10.1051/parasite/2023045","url":null,"abstract":"The cytogenetics of Acanthocephala is a neglected area in the study of this group of endoparasites. Chromosome number and/or karyotypes are known for only 12 of the 1,270 described species, and molecular cytogenetic data are limited to rDNA mapping in two species. The standard karyological technique and mapping of 18S rRNA and H3 histone genes on the chromosomes of Acanthocephalus anguillae individuals from three populations, one of which originated from the unfavorable environmental conditions of the Zemplínska Šírava reservoir in eastern Slovakia, were applied for the first time. All specimens had 2n = 7/8 (male/female); n = 1m + 1m-sm + 1a + 1a (X). Fluorescence in situ hybridization (FISH) revealed three loci of 18S rDNA on two autosomes and dispersion of H3 histone genes on all autosomes and the X chromosome. In addition to the standard A chromosome set, 34% of specimens from Zemplínska Šírava possessed a small acrocentric B chromosome, which was always found to be univalent, with no pairing observed between the B chromosome and the A complement. The B chromosome had a small amount of heterochromatin in the centromeric and telomeric regions of the chromosomal arms and showed two clusters of H3 genes. It is well known that an environment permanently polluted with chemicals leads to an increased incidence of chromosomal rearrangements. As a possible scenario for the B chromosome origin, we propose chromosomal breaks due to the mutagenic effect of pollutants in the aquatic environment. The results are discussed in comparison with previous chromosome data from Echinorhynchida species.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"44"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10592040/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49691742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revision of the genera of Heligmonellidae (Nematoda, Heligmosomoidea), parasitic in Muridae from New Guinea. Revision of genera of Heligmonellidae (Nematoda, Heligmosomoidea), parasitic in Muridae from New Guinea.

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 Epub Date: 2023-12-20 DOI: 10.1051/parasite/2023058

Marie-Claude Durette-Desset, María Celina Digiani

{"title":"Revision of the genera of Heligmonellidae (Nematoda, Heligmosomoidea), parasitic in Muridae from New Guinea.","authors":"Marie-Claude Durette-Desset, María Celina Digiani","doi":"10.1051/parasite/2023058","DOIUrl":"10.1051/parasite/2023058","url":null,"abstract":"Up to now, 24 genera of Nematoda belonging to the Nippostrongylinae (Heligmonellidae) have been reported from New Guinean murid rodents. Nine of these genera have been reviewed in previous works. In the present work, another 11 genera are re-examined on morphological characters mainly corresponding to the synlophe and to a lesser degree to the bursa. This re-examination leads us to recognize three valid genera: Melomystrongylus, Pogonomystrongylus and Nugininema. The remaining genera appear to us insufficiently described or seem to involve more than one taxon; we consider them genera inquirenda. These are: Mawsonema, Montistrongylus, Parvinema, Missimstrongylus, Flannerystrongylus, Helgenema and Paramelomystrongylus. The genus Rodentanema does not belong to the Nippostrongylinae but to the Herpetostrongylidae (Heligmosomoidea). In addition to the three genera recognized herein, nine other genera of Nippostrongylinae are present in New Guinea: Equilophos, Hasanuddinia, Hasegawanema, Hughjonestrongylus, Lesleyella, Macrostrongylus, Nippostrongylus, Parasabanema and Sanduanensis. Several species attributed to the genera Bunomystrongylus, Chisholmia, Odilia and Sabanema are insufficiently described and their generic assignment could not be rectified or ratified. Consequently, the presence of these latter genera in New Guinean rodents remains unconfirmed, until more complete descriptions or illustrations are provided.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"63"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10732140/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138796314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tsetse fly ecology and risk of transmission of African trypanosomes related to a protected forest area at a military base in the city of Abidjan, Côte d'Ivoire. Tsetse蝇生态和非洲锥虫传播风险与科特迪瓦阿比让市军事基地的森林保护区有关。

IF 2.3 2区医学

Parasite Pub Date : 2023-01-01 Epub Date: 2023-09-20 DOI: 10.1051/parasite/2023037

Yao Jean Rodrigue Konan, Djakaridja Berté, Bi Tra Dieudonné Ta, Jean-Paul Demoncheaux, Sylvie Sauzet, Stéphanie Watier-Grillot, Koffi Alain De Marie Kouadio, Louis N'dri, Bamoro Coulibaly, Philippe Solano, Sophie Ravel, Adeline Ségard, Dramane Kaba, Thierry De Meeûs, Vincent Djohan, Vincent Jamonneau

{"title":"Tsetse fly ecology and risk of transmission of African trypanosomes related to a protected forest area at a military base in the city of Abidjan, Côte d'Ivoire.","authors":"Yao Jean Rodrigue Konan, Djakaridja Berté, Bi Tra Dieudonné Ta, Jean-Paul Demoncheaux, Sylvie Sauzet, Stéphanie Watier-Grillot, Koffi Alain De Marie Kouadio, Louis N'dri, Bamoro Coulibaly, Philippe Solano, Sophie Ravel, Adeline Ségard, Dramane Kaba, Thierry De Meeûs, Vincent Djohan, Vincent Jamonneau","doi":"10.1051/parasite/2023037","DOIUrl":"10.1051/parasite/2023037","url":null,"abstract":"African trypanosomoses, whose pathogens are transmitted by tsetse flies, are a threat to animal and human health. Tsetse flies observed at the military base of the French Forces in Côte d'Ivoire (FFCI base) were probably involved in the infection and death of military working dogs. Entomological and parasitological surveys were carried out during the rainy and dry seasons using \"Vavoua\" traps to identify tsetse fly species, their distribution, favorable biotopes and food sources, as well as the trypanosomes they harbor. A total of 1185 Glossina palpalis palpalis tsetse flies were caught, corresponding to a high average apparent density of 2.26 tsetse/trap/day. The results showed a heterogeneous distribution of tsetse at the FFCI base, linked to more or less favorable biotopes. No significant variation in tsetse densities was observed according to the season. The overall trypanosomes infection rate according to microscopic observation was 13.5%. Polymerase chain reaction (PCR) analyses confirmed the presence of Trypanosoma vivax and T. congolense forest type, responsible for African animal trypanosomosis. Our findings suggest that there is a risk of introduction and transmission of T. brucei gambiense, responsible for human African trypanosomiasis, on the study site. This risk of transmission of African trypanosomes concerns not only the FFCI base, but also inhabited peripheral areas. Our study confirmed the need for vector control adapted to the eco-epidemiological context of the FFCI base.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"36"},"PeriodicalIF":2.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10510650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41139248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological and molecular characterisation of Tristoma integrum Diesing, 1850 (Monogenea, Capsalidae), including its complete mitogenome. 完整三角蝽，1850(单属，辣椒科)的形态和分子特征，包括其完整的有丝分裂基因组。

IF 2.9 2区医学

Parasite Pub Date : 2023-01-01 DOI: 10.1051/parasite/2023016

Romain Gastineau, Chahinez Bouguerche, Fadila Tazerouti, Jean-Lou Justine

{"title":"Morphological and molecular characterisation of Tristoma integrum Diesing, 1850 (Monogenea, Capsalidae), including its complete mitogenome.","authors":"Romain Gastineau, Chahinez Bouguerche, Fadila Tazerouti, Jean-Lou Justine","doi":"10.1051/parasite/2023016","DOIUrl":"https://doi.org/10.1051/parasite/2023016","url":null,"abstract":"Capsalids are monopisthocotylean monogenean parasites found on the skin and gills of fish. Capsalines (subfamily Capsalinae) are large-sized capsalids, parasitic on highly prized gamefish, and species of Tristoma parasitise only the gills of swordfish (Xiphias gladius). We obtained specimens of Tristoma integrum Diesing, 1850 from swordfish collected off Algeria in the Mediterranean Sea. Here, we describe the specimens, including the key systematics characters of dorsolateral body sclerites. One specimen was used for a next generation sequencing analysis but a part of it, including the sclerites, was mounted on a permanent slide, drawn, and deposited in a curated collection. We characterised the complete mitogenome, the ribosomal cluster (including 18S and 28S) and additional genes such as Elongation factor 1 alpha (EF1α) and Histone 3. We also retrieved molecular information from the host tissue present in the gut of the monogenean and provide the sequence of the complete rRNA cluster of the host, X. gladius. The mitogenome of T. integrum is 13 968 bp in length and codes for 12 protein, 2 rRNA and 22 tRNA. Phylogenies of capsalids were generated from 28S sequences and concatenated mitochondrial protein-coding genes, respectively. In the 28S phylogeny, most subfamilies based on morphology were not found to be monophyletic, but the Capsalinae were monophyletic. In both phylogenies, the closest member to Tristoma spp. was a member of the Capsaloides. In an Appendix, we report the complex nomenclatural history of Tristoma Cuvier, 1817 and its species.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"30 ","pages":"16"},"PeriodicalIF":2.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10187539/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9840068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1