Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria最新文献_第6页

Feline leishmaniosis: hematological and biochemical analysis. 猫利什曼病:血液学和生化分析。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2023-01-01 DOI: 10.1590/S1984-29612023035

Diogo Tiago da Silva, Maria Luana Alves, Júlio Cesar Pereira Spada, João Augusto Franco Leonel, Geovanna Vioti, Julia Cristina Benassi, Valéria Maria Lara Carregaro, Maria Fernanda Alves-Martin, Wilma Aparecida Starke-Buzetti, Trícia Maria Ferreira de Sousa Oliveira

{"title":"Feline leishmaniosis: hematological and biochemical analysis.","authors":"Diogo Tiago da Silva, Maria Luana Alves, Júlio Cesar Pereira Spada, João Augusto Franco Leonel, Geovanna Vioti, Julia Cristina Benassi, Valéria Maria Lara Carregaro, Maria Fernanda Alves-Martin, Wilma Aparecida Starke-Buzetti, Trícia Maria Ferreira de Sousa Oliveira","doi":"10.1590/S1984-29612023035","DOIUrl":"https://doi.org/10.1590/S1984-29612023035","url":null,"abstract":"One hundred and sixty-six cats from two animal shelters were subjected to enzyme-linked immunosorbent assay (ELISA), indirect immunofluorescence antibody test (IFAT), conventional polymerase chain reaction (cPCR), quantitative PCR (qPCR) and parasitological tests (PA) for the diagnosis of Leishmania spp. Among them, 15% (25/166), 53.6% (89/166), 3.6% (06/166) and 1.8% (03/166) were positive by ELISA, IFAT, both PCRs and PA, respectively. The sequencing of ITS-1 PCR amplicons revealed a 100% match with Leishmania infantum. After the Leishmania spp. survey, 12 cats were selected and divided into two groups for clinical, hematological, and biochemical analysis: six L. infantum positive cats (G1) and six Leishmania spp. negative cats (G2). All the cats were negative for feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV). A statistical analysis indicated significantly low platelet counts and significant hyperproteinemia associated with hypoalbuminemia in positive cats (p<0.05). Our results suggest that in endemic areas, cats with clinical signs of feline leishmaniosis (such as skin lesions, weight loss and/or enlarged lymph nodes) and that exhibit hematological and biochemical changes, such as low platelet counts and hyperproteinemia with hypoalbuminemia, should be tested for Leishmania spp. infection.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"32 2","pages":"e003823"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10321720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9754771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New reports of parasitism by Synhimantus (Dispharynx) nasuta (Rudolphi, 1819) (Nematoda: Acuariidae) in wild birds in Brazil. 巴西野生鸟类中棘球线虫(nematada (Dispharynx) nasuta (Rudolphi, 1819)(线虫纲:棘球线虫科)寄生新报道。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2023-01-01 DOI: 10.1590/S1984-29612023033

Allan de Jesus Mendonça Severino, Alex Júnior Rocha, Fabiano Matos Vieira, Luís Cláudio Muniz-Pereira, Sueli de Souza Lima

{"title":"New reports of parasitism by Synhimantus (Dispharynx) nasuta (Rudolphi, 1819) (Nematoda: Acuariidae) in wild birds in Brazil.","authors":"Allan de Jesus Mendonça Severino, Alex Júnior Rocha, Fabiano Matos Vieira, Luís Cláudio Muniz-Pereira, Sueli de Souza Lima","doi":"10.1590/S1984-29612023033","DOIUrl":"https://doi.org/10.1590/S1984-29612023033","url":null,"abstract":"The aim of this study was to register the first occurrence of Synhimantus (Dispharynx) nasuta (Nematoda: Acuariidae) in some species of wild birds in Brazil. In addition, the aim was to deepen the knowledge about the morphology of this species through analysis using scanning electron microscopy. Nematodes were collected in wild birds of the species Turdus leucomelas, T. rufiventris, Mimus saturninus, Pitangus sulphuratus, Megascops choliba, Tyto furcata, and Falco sparverius. The morphological and morphometric data observed in the nematodes prove that these parasites are S. (D.) nasuta. This study also provides morphological data from light microscopy and scanning electron microscopy (SEM), as well as the morphometry of this nematode in each host species. Therefore, the current study confirms the first record of this nematode in F. sparverius and T. furcata in South America and, at the same time, these findings expand the host range of this parasite species worldwide, through the first records in M. choliba, M. saturninus, T. leucomelas and T. rufiventris.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"32 2","pages":"e002823"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10321718/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9754774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In vitro culture of parasitic stages of Haemonchus contortus. 扭曲血蜱寄生期的离体培养。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2023-01-01 DOI: 10.1590/S1984-29612023005

Simone Cristina Méo Niciura, Alessandro Pelegrine Minho, Jennifer McIntyre, Magda Vieira Benavides, Cintia Hiromi Okino, Sergio Novita Esteves, Ana Carolina de Souza Chagas, Alessandro Francisco Talamini do Amarante

{"title":"In vitro culture of parasitic stages of Haemonchus contortus.","authors":"Simone Cristina Méo Niciura, Alessandro Pelegrine Minho, Jennifer McIntyre, Magda Vieira Benavides, Cintia Hiromi Okino, Sergio Novita Esteves, Ana Carolina de Souza Chagas, Alessandro Francisco Talamini do Amarante","doi":"10.1590/S1984-29612023005","DOIUrl":"https://doi.org/10.1590/S1984-29612023005","url":null,"abstract":"Haemonchus contortus is a constraint to sheep production. Seeking to reduce the use of hosts and produce parasitic stages in large-scale, a 42-day in vitro culture protocol of H. contortus third-stage larvae was optimized using Dulbecco's modified Eagle's medium (DMEM). In cell-free culture, larvae were maintained at 39.6°C, in acidic media (pH 6.1) for 3 or 6 days with Δ4-dafachronic acid followed by DMEM pH 7.4 supplemented or not with Fildes' reagent. In DMEM pH 7.4 at 37°C, supplementation with Caco-2 cells was compared to Fildes. On Day 14, fourth-stage larvae (L4) development rates in acidic media supplemented (86.8-88.4%) or not (74.4-77.8%) with Fildes and in Caco-2 cell co-culture (92.6%) were similar, and superior to DMEM pH 7.4 with Fildes (0.0%). On Day 21, Caco-2 cell co-culture resulted in higher larvae differentiation (25.0%) and lower degeneration (13.9%) compared to acidic media (1.5-8.1% and 48.6-69.9%, respectively). This is the first report of prolonged in vitro culture of H. contortus larvae using commercial media in co-culture with Caco-2 cells. Although no progression to the adult stage, Caco-2 cell co-culture resulted in morphological differentiation of H. contortus L4 and larval viability for up to 28 days.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"32 1","pages":"e010122"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10544536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Prevalence of endoparasites by microscopic analysis in free-range chickens in a Brazilian semiarid region. 巴西半干旱地区散养鸡体内寄生虫的显微分析。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-12-12 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022063

Juliana Trajano da Silva, Felipe Boniedj Ventura Alvares, Clarisse Silva de Menezes Oliveira, Luana Carneiro de Sousa, Brendo Andrade Lima, Thais Ferreira Feitosa, Arthur Willian de Lima Brasil, Vinícius Longo Ribeiro Vilela

{"title":"Prevalence of endoparasites by microscopic analysis in free-range chickens in a Brazilian semiarid region.","authors":"Juliana Trajano da Silva, Felipe Boniedj Ventura Alvares, Clarisse Silva de Menezes Oliveira, Luana Carneiro de Sousa, Brendo Andrade Lima, Thais Ferreira Feitosa, Arthur Willian de Lima Brasil, Vinícius Longo Ribeiro Vilela","doi":"10.1590/S1984-29612022063","DOIUrl":"10.1590/S1984-29612022063","url":null,"abstract":"The aim of this study was to evaluate the prevalence and diversity of endoparasitic fauna and the risk factors associated with parasite infections in free-range chickens in the state of Paraíba, northeastern Brazil. Ten municipalities were visited and, in each of them, ten farms, to collect animal feces and apply epidemiological questionnaires. Feces from 417 poultry were used to perform EPG (eggs per gram) and OoPG (oocysts per gram) tests. Prevalences of 40.52% (169/417) and 39.08% (163/417) were observed for nematodes and coccidia, respectively. In 17% (71/417), mixed infections by nematodes and coccidia were observed. Nematodes of Heterakoidea superfamily were present in 100% of the positive samples (169/169), followed by Trichuris spp. (57.3%; 97/169). All the protozoan oocysts observed belonged to the genus Eimeria (100%; 163/163). The variable of presence of drooping wings was considered to be a factor associated with infection by coccidia (odds ratio = 5.412; confidence interval: 1.179-24.848; p = 0.030). It was concluded that there is high prevalence of nematodes and coccidia in free-range chickens in the state of Paraíba, Brazil. Better sanitary management measures, with greater hygiene of facilities, together with chemical control of parasites, can improve productivity by reducing the rate of gastrointestinal parasites.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e010722"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901881/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9087961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-term persistence of anti-Rickettsia rickettsii antibodies in capybaras, with passive transfer to offspring. 水豚体内抗立克次体抗体的长期持久性，并被动转移给后代。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-09-26 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022052

Lina de Campos Binder, Alejandro Ramírez-Hernández, Maria Carolina de Azevedo Serpa, Adriano Pinter, Celso Eduardo Souza, Marcelo Bahia Labruna

{"title":"Long-term persistence of anti-Rickettsia rickettsii antibodies in capybaras, with passive transfer to offspring.","authors":"Lina de Campos Binder, Alejandro Ramírez-Hernández, Maria Carolina de Azevedo Serpa, Adriano Pinter, Celso Eduardo Souza, Marcelo Bahia Labruna","doi":"10.1590/S1984-29612022052","DOIUrl":"10.1590/S1984-29612022052","url":null,"abstract":"The bacterium Rickettsia rickettsii is the etiological agent of Brazilian spotted fever (BSF), and its most important vector to humans in Brazil is the tick Amblyomma sculptum. Capybaras are the main hosts of A. sculptum in many BSF-endemic areas and are considered valuable sentinels for BSF surveillance. This study aimed to assess the persistence of anti-R. rickettsii antibodies for long periods in capybaras and their passive transfer to offspring. For this purpose, three adult capybaras previously exposed to multiple infections with R. rickettsii were followed up until 3.1 years after their last exposure. During the study, one female delivered five cubs, of which three survived. Blood samples were collected monthly from adults and infants, and serum samples were titrated by indirect immunofluorescence assay (IFA) to determine endpoint titers of anti-R. rickettsii antibodies. All three adults remained seroreactive to R. rickettsii with high endpoint titers until the end of the study. All infants were seroreactive to R. rickettsii after birth and remained seroreactive for one to four months. This study showed that exposure of capybaras to R. rickettsii-infected A. sculptum ticks elicits a persistent antibody response. In addition, there was evidence of passive transfer of R. rickettsii-reactive antibodies to offspring.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":" ","pages":"e009922"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12136383/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40380080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Q fever and coxiellosis in Brazil: an underestimated disease? A brief review. 巴西的Q热和柯埃尔病：一种被低估的疾病？简单回顾一下。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-09-26 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022051

Eline Almeida Rodrigues de Souza, Marcos Rogério André, Marcelo Bahia Labruna, Mauricio Claudio Horta

引用次数: 0

Serological evidence of exposure to Bartonella sp. in dogs with suspected vector-borne diseases, toxoplasmosis and neosporosis. 怀疑患有媒介传播疾病、弓形虫病和新孢子病的犬暴露于巴尔通体的血清学证据。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-09-19 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022050

Luiz Ricardo Gonçalves, Márcia Mariza Gomes Jusi Merino, Carla Roberta Freschi, Simone de Jesus Fernandes, Marcos Rogério André, Rosangela Zacarias Machado

{"title":"Serological evidence of exposure to Bartonella sp. in dogs with suspected vector-borne diseases, toxoplasmosis and neosporosis.","authors":"Luiz Ricardo Gonçalves, Márcia Mariza Gomes Jusi Merino, Carla Roberta Freschi, Simone de Jesus Fernandes, Marcos Rogério André, Rosangela Zacarias Machado","doi":"10.1590/S1984-29612022050","DOIUrl":"10.1590/S1984-29612022050","url":null,"abstract":"Bartonellosis is a vector-borne zoonotic disease with worldwide distribution that infect a broad spectrum of mammalian species. Despite the recent studies carried out in Brazil, information regarding Bartonella in dogs are scarce. Therefore, we performed a retrospective study to investigate the exposure to Bartonella sp. in dogs by indirect immunofluorescence assay (IFA). Three hundred and thirty-five archived serum samples from dogs previously tested for vector-borne pathogens, Toxoplasma gondii, and Neospora caninum were screened for the presence of IgG antibodies to Bartonella sp. All dogs originated from the Metropolitan region of Ribeirão Preto, northeast of the State of São Paulo. Twenty-eight samples (8.3%) were positive for Bartonella sp. at the cut-off of 64. Among the 28 seropositive samples for Bartonella sp., 16 (57.1%) were also seropositive for Ehrlichia canis, 12 (42.8%) for Babesia vogeli, five (17.8%) for T. gondii and three (10.7%) for L. infantum and N. caninum. Our results demonstrated that dogs sampled were exposed to Bartonella sp. Since all the animals sampled in the present study were from private owners, our findings demonstrate that these people may also be exposed to Bartonella sp. Further studies designed to assess whether the infection by other arthropod-borne pathogens such as B. vogeli and E. canis are risk factors for Bartonella infection are needed.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 3","pages":"e010422"},"PeriodicalIF":0.0,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12136370/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33469812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection of Sarcocystis spp. and Toxoplasma gondii in swine and detection of DNA of these protozoa in tissues and sausages. 猪肉囊虫和刚地弓形虫的检测及组织和香肠中这两种原虫的DNA检测。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-09-02 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022049

Bruna Dias Espindola, Fagner D'ambroso Fernandes, Isac Junior Roman, Gisele Vaz Aguirre Samoel, Roberto Antônio Delgado Barcelos, Alisson Rodrigues Döhler, Sônia de Ávila Botton, Fernanda Silveira Flores Vogel, Luis Antonio Sangioni

{"title":"Detection of Sarcocystis spp. and Toxoplasma gondii in swine and detection of DNA of these protozoa in tissues and sausages.","authors":"Bruna Dias Espindola, Fagner D'ambroso Fernandes, Isac Junior Roman, Gisele Vaz Aguirre Samoel, Roberto Antônio Delgado Barcelos, Alisson Rodrigues Döhler, Sônia de Ávila Botton, Fernanda Silveira Flores Vogel, Luis Antonio Sangioni","doi":"10.1590/S1984-29612022049","DOIUrl":"10.1590/S1984-29612022049","url":null,"abstract":"The seroprevalence of Sarcocystis spp. and Toxoplasma gondii was researched in swine raised in Santa Maria, RS, Brazil. Serum samples from 84 pigs from 31 farms were tested using indirect immunofluorescence assay (IFA) for both agents. Additionally, 53 samples of pork sausages and tissues destined for human consumption, including: salami, sausage, black pudding, heart, tongue, brain, and rib muscle, were submitted to PCR to detect DNA for each agent. The frequency of anti-Sarcocystis spp. antibodies was 36.9% (31/84), with titers ranging from 32 to 1024, and 25% (21/84) for anti-T. gondii antibodies, with titers ranging from 64 to 2048. Sarcocystis spp. and T. gondii DNA were detected in 67.9% (36/53) and 13.2% (7/53) of samples, respectively. The presence of antibodies and the detection of DNA from Sarcocystis spp., and T. gondii suggests that the pigs were infected and may serve as an important reservoir for both parasites. The infection by these protozoa in the swine population is relevant to public health due to their zoonotic potential.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 3","pages":"e009322"},"PeriodicalIF":0.0,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12136372/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33449179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of Huffmanela (Nematoda: Trichosomoididae) parasitizing Colomesus psittacus (Tetraodontiformes) from Marajó Island, Pará State, Brazil. 巴西帕尔<e:1>州Marajó岛寄生蚤一新种（线虫纲：毛线虫科）。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-08-22 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022045

Elaine Lopes de Carvalho, Ricardo Luis Sousa Santana, Gilson Campos Corrêa, José Ledamir Sindeaux Neto, Raul Henrique da Silva Pinheiro, Elane Guerreiro Giese

{"title":"A new species of Huffmanela (Nematoda: Trichosomoididae) parasitizing Colomesus psittacus (Tetraodontiformes) from Marajó Island, Pará State, Brazil.","authors":"Elaine Lopes de Carvalho, Ricardo Luis Sousa Santana, Gilson Campos Corrêa, José Ledamir Sindeaux Neto, Raul Henrique da Silva Pinheiro, Elane Guerreiro Giese","doi":"10.1590/S1984-29612022045","DOIUrl":"10.1590/S1984-29612022045","url":null,"abstract":"The puffer fish Colomesus psittacus, is not commercialized on Marajó Island. They are captured as bycacth and discarded dead in the environment in artisanal fisheries that occur in the estuaries of northern Brazil. In this sense, the objective was to identify the parasites present in the gills and to evaluate the histopathological alterations caused by these nematodes of the genus Huffmanela. Fifty-five fish were analyzed, and thirty-five specimens showed the parasite in the gills. Morphological characteristics suggest that it is a new species of the genus Huffmanela, and the histopathological exams showed an edematous inflammation in the secondary lamella and the presence of eggs of this nematode, which is the first record of this parasite in C. psittacus in Brazil.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":" ","pages":"e006222"},"PeriodicalIF":0.0,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12136378/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40422077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geographic range, distribution patterns and interactions of Monogenea Van Beneden 1858, with species of native host freshwater fishes from Brazil. Van Beneden Monogenea 1858的地理范围、分布模式及其与巴西本地淡水鱼种的相互作用。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-08-22 eCollection Date: 2022-01-01 DOI: 10.1590/S1984-29612022048

Marcos Tavares-Dias, Luís Mauricio Abdon Silva, Marcos Sidney Brito Oliveira

{"title":"Geographic range, distribution patterns and interactions of Monogenea Van Beneden 1858, with species of native host freshwater fishes from Brazil.","authors":"Marcos Tavares-Dias, Luís Mauricio Abdon Silva, Marcos Sidney Brito Oliveira","doi":"10.1590/S1984-29612022048","DOIUrl":"10.1590/S1984-29612022048","url":null,"abstract":"This paper investigated information on monogenean species using 312 scientific papers, to search for infection and geographic distribution patterns in native freshwater fish from Brazil. We used 1,698 samples of 296 fish species of 28 families distributed into Characiformes, Siluriformes, Cichliformes, Gymnotiformes, Perciformes, Mugiliformes, Osteoglossiformes and Clupeiformes, in addition to four hybrid fish. Among the hosts of the different orders and families, the greatest numbers of parasite-host associations were found for species of the families Serrasalmidae, Characidae, Loricariidae, Curimatidae and Anostomidae. The 578 species of monogeneans used in parasite-host interactions were distributed in 86 genera of six five families (Dactylogyridae, Gyrodactylidae, Diplectanidae, Microcotylidae, Ancylodiscoididae and Ancyrocephalidae), but with great predominance of Dactylogyridae species. There was variation in prevalence, intensity and abundance levels of monogeneans species among host fish species, as well as in infection sites that occurred predominantly in external organs. Positive correlations of prevalence, intensity and abundance with body length of hosts were observed. There was geographic distribution pattern of monogeneans limited mostly to two hydrographic basins those being the Amazon River and Paraná River. Just approximately 6% of potential monogeneans have been explored thus far, showing a clear need for further studies on this interesting group of parasites.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":" ","pages":"e005722"},"PeriodicalIF":0.0,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12136379/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40422076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0