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Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology

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https://read.qxmd.com/read/30785558/molecular-detection-of-mycoplasma-suis-in-extensive-pig-production-systems-in-the-state-of-maranh%C3%A3-o-northeast-brazil
#1
Mickaellen Susanny Dos Santos Martins, Lucas Diniz Silva, Leandro Macêdo Miranda, Cristian Alex Aquino Lima, Renan Bressianini do Amaral, Rosangela Zacarias Machado, Marcos Rogério André, Maria do Socorro Costa Oliveira Braga, Carla Janaina Rebouças Marques do Rosário, Ferdinan Almeida Melo, José Gomes Pereira
Mycoplasma suis is a bacterium that causes hemoplasmosis in pigs. This agent is capable of adhering to the surface of porcine erythrocytes, inducing structural changes on these cells. In Brazil, there are few reports about the disease, its causal agent, and the economic impact of this pathogen on pig production systems and farm sanitation. The present study aimed to investigate the occurrence of M. suis in extensive swine farms located in the counties of Itapecuru Mirim, Santa Rita and Rosario, State of Maranhão, northeast Brazil...
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30785557/antitumoral-effects-of-amblyomma-sculptum-berlese-saliva-in-neuroblastoma-cell-lines-involve-cytoskeletal-deconstruction-and-cell-cycle-arrest
#2
Thatyanne Gradowski do Nascimento, Priscilla Santos Vieira, Sheron Campos Cogo, Marcela Ferreira Dias-Netipanyj, Nilton de França Junior, Diana Aparecida Dias Câmara, Allan Saj Porcacchia, Ronaldo Zucatelli Mendonça, Andréa Novais Moreno-Amaral, Paulo Luiz de Sá Junior, Simone Michaela Simons, Luciana Zischler, Selene Elifio-Esposito
The antitumor properties of ticks salivary gland extracts or recombinant proteins have been reported recently, but little is known about the antitumor properties of the secreted components of saliva. The goal of this study was to investigate the in vitro effect of the saliva of the hard tick Amblyomma sculptum on neuroblastoma cell lines. SK-N-SK, SH-SY5Y, Be(2)-M17, IMR-32, and CHLA-20 cells were susceptible to saliva, with 80% reduction in their viability compared to untreated controls, as demonstrated by the methylene blue assay...
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30785556/dermatitis-in-humans-caused-by-ornithonyssus-bursa-berlese-1888-mesostigmata-macronyssidae-and-new-records-from-brazil
#3
Ricardo Bassini-Silva, Fernando de Castro Jacinavicius, Fabio Akashi Hernandes, Ronald Ochoa, Gary R Bauchan, Ashley P G Dowling, Darci Moraes Barros-Battesti
Ornithonyssus bursa, known as the "tropical fowl mite", is a hematophagous mite of domestic and wild birds, occasionally biting humans. Infestation on humans occurs mainly when the abandoned nests are close to homes, or by manipulation of infested birds by humans. In Brazil, this species occurs in the south and southeast of the country. In the present study we are reporting bites on humans, new localities records, host associations, and molecular information of O. bursa.
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30785555/occurrence-of-zoonotic-enterocytozoon-bieneusi-in-cats-in-brazil
#4
Jamille Batista Faria Prado, Carlos Alberto do Nascimento Ramos, Vagner Ricardo da Silva Fiuza, Veronica Jorge Babo Terra
Enterocytozoon bieneusi is an opportunistic intestinal pathogen that infects humans and a wide variety of animals worldwide. Our aim in this study was to investigate the occurrence of E. bieneusi in a domestic cat population in Campo Grande, Mato Grosso do Sul, Brazil. Sixty fecal samples from diarrheic cats were subjected to polymerase chain reaction (PCR) and the amplicons were sequenced for identification. E. bieneusi was detected in two samples (3.3%), both identified as genotype D. This genotype has already been reported in animals and humans and is considered a zoonotic genotype...
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30785554/microscopic-alterations-in-fasciola-hepatica-from-sheep-treated-with-albendazole
#5
Milena Batista Carneiro, Barbara Rauta Avelar, Anderson Barros Archanjo, Isabella Vilhena Freire Martins, Louisiane de Carvalho Nunes, Fabio Barbour Scott
Currently, albendazole is one of the most commonly used drugs because of its affordability. The objective was to evaluate the histopathology of Fasciola hepatica specimens. For this, the efficacy test was performed on sheep treated with albendazole at the dose recommended for F. hepatica, in which the helminths recovered at necropsy were counted and separated for histology. Spermatogenic cells from parasites recovered from treated and control sheep were examined by microscopy. The fecal egg-count reduction test revealed 97...
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30785553/frequency-and-factors-associated-with-theileria-equi-babesia-caballi-and-trypanosoma-evansi-in-equids-from-bahia-northeast-brazil
#6
Sonia Carmen Lopo Costa, Jéssica de Souza Freitas, Aísla Nascimento da Silva, Luciana Carvalho Lacerda, Rebeca Dálety Santos Cruz, Fábio Santos Carvalho, Maria Julia Salim Pereira, Alexandre Dias Munhoz
The aim of this study was to determine the frequency and factors associated to Babesia caballi, Theileria equi and Trypanosoma evansi in naturally infected equids from the northeast Brazil. Blood samples from 569 equids (528 horses, 8 mules, and 33 donkeys) were collected and tested for the presence of DNA of each of these protozoan parasites by PCR. Generalized linear models were used to evaluate risk factors associated with the infection. The frequency of T. equi infection was 83.5% (475/569) - 84.3% in horses, and 73...
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30785552/use-of-mini-flotac-and-fill-flotac-for-rapidly-diagnosing-parasitic-infections-in-zoo-mammals
#7
Michele Capasso, Maria Paola Maurelli, Davide Ianniello, Leucio Camara Alves, Alessandra Amadesi, Piero Laricchiuta, Pasqualino Silvestre, Marco Campolo, Giuseppe Cringoli, Laura Rinaldi
Animals reared in restricted environments are highly susceptible to gastrointestinal infection by helminths and protozoa and therefore zoos are characterized as being parasite-rich environments. Successful implementation of control programs of these parasites in zoo environment depends upon precise and rapid diagnosing of gastrointestinal infections. The aim of this study was to demonstrate the role of the Mini-FLOTAC technique in combination with Fill-FLOTAC for rapidly diagnosing parasitic infections in zoo mammals...
February 14, 2019: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30540115/detection-molecular-of-rangelia-vitalii-in-dogs-from-parana-state-southern-brazil
#8
Bianca Ressetti da Silva, Morgana de Fátima Kuteques Ferreira, Gabriela Maffezzolli, Marília de Oliveira Koch, Olair Carlos Beltrame, Isis Indaiara Gonçalves Granjeiro Taques, Amanda Noéli da Silva Campos, Daniel Moura de Aguiar, Rosangela Locatelli Dittrich
Rangelia vitalii infects erythrocytes, leukocytes and endothelial cells of dogs. The present study aimed to report the molecular detection confirmed by sequencing of R. vitalii in the state of Paraná, as well as describe the clinical, hematological and biochemical alterations of the infected dogs. Three sick dogs from the metropolitan area of Curitiba, PR, Brazil, underwent a physical exam, and laboratory tests included hematology, biochemistry, polymerase chain reaction (PCR), and gene sequencing. Clinical signs included apathy, anorexia, and hemorrhage...
December 10, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30540114/neobenedenia-melleni-monogenea-capsalidae-in-ornamental-reef-fish-imported-to-brazil
#9
Pedro Henrique Magalhães Cardoso, Simone de Carvalho Balian, Herbert Sousa Soares, Karen Roberta Tancredo, Maurício Laterça Martins
The capsalid monogenean Neobenedenia melleni is known as a lethal pathogen for captured marine teleost ornamental fish, if left untreated. This study reports the occurrence of N. melleni parasitizing four species of ornamental reef fish imported into Brazil and maintained in quarantine: Arabian angelfish (Pomacanthus asfur ), yellowbar angelfish (Pomacanthus maculosus), regal angelfish (Pygoplites diacanthus), and bluecheek butterflyfish (Chaetodon semilarvatus). Ten days after the beginning of quarantine, some fish showed behavioral alterations, such as irritability, and corneal opacity, which were rapidly diagnosed to be caused by monogenean parasites by body surface scraping...
December 10, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30462824/in-vitro-culture-of-neoechinorhynchus-buttnerae-acanthocephala-neoechinorhynchidae-influence-of-temperature-and-culture-media
#10
Carinne Moreira de Souza Costa, Talissa Beatriz Costa Lima, Matheus Gomes da Cruz, Daniela Volcan Almeida, Maurício Laterça Martins, Gabriela Tomas Jerônimo
Infection by the acantocephalan Neoechinorhynchus buttnerae is considered one of most important concerns for tambaqui fish (Colossoma macropomum ) production. Treatment strategies have been the focus of several in vivo studies; however, few studies have been undertaken on in vitro protocols for parasite maintenance. The aim of the present study was to develop the best in vitro culture condition for N. buttnerae to ensure its survival and adaptation out of the host to allow for the testing of substances to be used to control the parasite...
November 14, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30462823/hemotropic-mycoplasmas-in-naturally-infected-cats-in-northeastern-brazil
#11
Alexandre Dias Munhoz, Izabela Garcia Pinto Coelho Simões, Ana Paula Fernandes Calazans, Ludimila Santos Macedo, Rebeca Dálety Santos Cruz, Luciana Carvalho Lacerda, Roueda Abou Said, Marcos Rogério André
This study aimed to determine the prevalence, factors associated, laboratory findings (with and without coinfection by retroviruses) among naturally infected cats by hemoplasmas in northeastern Brazil. For convenience, 200 domesticated and healthy cats were selected. Blood samples were taken to perform complete blood counts, serum biochemical, immunochromatography tests and nPCR for FIV and FeLV, and PCR for hemoplasma recognition. An interview was conducted to determine the factors associated with hemoplasmas...
November 14, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30462822/molecular-detection-of-vector-borne-pathogens-in-anemic-and-thrombocytopenic-dogs-in-southern-brazil
#12
Anna Cláudia Baumel Mongruel, Priscila Ikeda, Keyla Carstens Marques de Sousa, Jyan Lucas Benevenute, Margarete Kimie Falbo, Rosangela Zacarias Machado, Adriano de Oliveira Torres Carrasco, Marcos Rogério André, Meire Christina Seki
Arthropod-borne pathogens are medically important because of their ability to cause diseases in their hosts. The purpose of this study was to detect the occurrence of Ehrlichia spp., piroplasmids and Hepatozoon spp. in dogs with anemia and thrombocytopenia in southern Brazil. EDTA-whole blood was collected from 75 domestic dogs presenting anemia or/and thrombocytopenia from Guarapuava, state of Paraná, Brazil. DNA samples were subjected to conventional PCR assays for Ehrlichia spp. (dsb), piroplasmids (18S rRNA) and Hepatozoon spp...
November 14, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30462821/histopathological-findings-of-fasciola-hepatica-infection-in-non-native-european-hare-lepus-europaeus-in-southern-chile
#13
Pablo Oyarzún-Ruiz, Cristina Alvelo, Frank Vera, Manuel Moroni
Fasciola hepatica is a parasite introduced in America from Europe, being considered of concern for public health and animal production, especially in countries with endemic areas as occur in Chile. In this country, the research has been focused mainly in domestic ruminants, with native and introduced wildlife being largely ignored. Thus, the aim of this study was to report the infection by Fasciola hepatica in an introduced mammal, the European hare, which is distributed along a vast area of the country. One in 42 hares hunted showed histological lesions compatible with F...
November 14, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30462820/occurrence-of-ehrlichia-canis-and-hepatozoon-canis-and-probable-exposure-to-rickettsia-amblyommatis-in-dogs-and-cats-in-natal-rn
#14
Marcos Gomes Lopes, Felipe da Silva Krawczak, Julia Teresa Ribeiro de Lima, Gislene Fatima da Silva Rocha Fournier, Igor da Cunha Lima Acosta, Diego Garcia Ramirez, Arlei Marcili, Marcelo Bahia Labruna, Solange Maria Gennari
Occurrence of infection or exposure to Ehrlichia canis, Hepatozoon canis and Rickettsia spp. was detected in feral cats living in two fragments from Atlantic rainforest, in Natal, RN, Brazil, and in dogs living around the parks. While serum samples were collected from 155 animals (53 cats living in the parks; 29 dogs living in human homes around the parks; and 73 dogs living at an animal control center - ACC), spleen samples were collected from 20 dogs that were euthanized at ACC. Serum samples were analyzed to Rickettsia spp...
November 14, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30427529/nematode-capilaridae-in-the-tongue-of-cerdocyon-thous-of-free-life-in-brazil
#15
Raul Henrique da Silva Pinheiro, Isabella Bittencourt Pires Chaves, Rogério Antonio Ribeiro Rodrigues, Érika Branco, Ana Rita de Lima, Elane Guerreiro Giese
Studies of helminths in road-killed wild animals are still uncommon but may provide promising results since they can identify the parasites in juvenile and adult hosts and meet the recommendations of current discussions on bioethics that prioritize alternative methods for the use of animals. This study evaluated three Cerdocyon thous individuals that were donated after dying from being run over. Two of them had small nematode adults in the epithelial and connective tissues of the tongue. The diagnosis was based on the presence of eggs, observed in histological sections, and morphological characteristics of the nematodes in the tongue...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30427528/theileria-sp-in-water-buffaloes-from-maranh%C3%A3-o-state-northeastern-brazil
#16
Hugo Luca Abate, Nelson Jessé Rodrigues Dos Santos, Danilo Rodrigues Barros Brito, Jessica Damiana Marinho Valente, Thállitha Samih Wischral Jayme Vieira, João Luis Garcia, Rafael Felipe da Costa Vieira, Odilon Vidotto
Anaplasma marginale and piroplasm species are widespread among Brazilian cattle herds. Both of these tick-borne pathogens hamper livestock production and cause a significant economic impact. Although buffaloes have demonstrated a high level of adaptability, data on tick-borne pathogens are scarcely reported in Brazil. Thus, the aim of this study was to screen water buffaloes from the state of Maranhão for piroplasm and A. marginale occurrence using PCR assays. All samples were negative for A. marginale. One of the 287 (0...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30427527/changes-in-hematological-and-biochemical-parameters-of-tambaqui-colossoma-macropomum-parasitized-by-metazoan-species
#17
Maria Juliete Souza Rocha, Gabriela Tomas Jerônimo, Oscar Tadeu Ferreira da Costa, José Celso de Oliveira Malta, Maurício Laterça Martins, Patricia Oliveira Maciel, Edsandra Campos Chagas
The aim of this study was to evaluate the impacts of metazoan parasites on hematological and biochemical parameters and relative condition factor of tambaqui (Colossoma macropomum ) farmed in northern Brazil. A total of 32 juvenile fish were captured from a commercial fish farm located in the municipality of Rio Preto da Eva, Amazonas state, Brazil. Parasite prevalence was 100% for Anacanthorus spathulatus, Mymarothecium boegeri and Notozothecium janauachensis, 100% for Neoechinorhynchus buttnerae and 53.13% for Dolops geayi...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30427526/cucullanus-marajoara-n-sp-nematoda-cucullanidae-a-parasite-of-colomesus-psittacus-osteichthyes-tetraodontiformes-in-the-maraj%C3%A3-brazil
#18
Raul Henrique da Silva Pinheiro, Ricardo Luis Sousa Santana, Scott Monks, Jeannie Nascimento Dos Santos, Elane Guerreiro Giese
Cucullanus marajoara n. sp. (Cucullanidae) is reported to parasitize Colomesus psittacus (Tetraodontiformes), which is a fish species from the Marajó Archipelago, state of Pará, estuarine region of the Brazilian Amazon. The new species differs from similar species by the presence of a protruding upper lip on the cloacal opening, the distribution of the cloacal papillae: five pre-cloacal papillae pairs and 5 are ventral and located posteriorly to the pre-cloacal sucker and an unpaired papilla is located on the upper cloacal lip and five post-cloacal pairs, and a pair of lateral phasmids located between papillae pairs...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30427525/nematode-resistance-to-five-anthelmintic-classes-in-naturally-infected-sheep-herds-in-northeastern-brazil
#19
Francisca Flávia da Silva, Hermano Manoel Francisco Figueiredo Bezerra, Thais Ferreira Feitosa, Vinícius Longo Ribeiro Vilela
This study aimed to evaluate the occurrence of nematode resistance to anthelmintics on sheep herds from the semi-arid region of Paraíba, Northeastern Brazil. Fecal Egg Count Reduction Test (FECRT) was carried out on 20 properties. In each herd, 30 animals were divided into five groups containing six animals each: group I, treated with albendazole 10%, 4 mg/kg; group II, ivermectin 0.08%, 0.2 mg/kg; group III, closantel 10%, 10 mg/kg; group IV, levamisole hydrochloride 5%, 5 mg/kg; and group V, monepantel 2...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://read.qxmd.com/read/30427524/a-cysteine-protease-from-the-latex-of-ficus-benjamina-has-in-vitro-anthelmintic-activity-against-haemonchus-contortus
#20
Ledia Feitosa Wanderley, Alexandra Martins Dos Santos Soares, Carolina Rocha E Silva, Isaias Moreira de Figueiredo, Andre Teixeira da Silva Ferreira, Jonas Perales, Handerson Ribeiro de Oliveira Mota, Jose Tadeu Abreu Oliveira, Livio Martins Costa Junior
Haemonchus contortus is a gastrointestinal nematode that is responsible for high mortality rates in ruminant herds. The resistance of nematodes to synthetic anthelmintics is widespread and requires a continuous search for new bioactive molecules, such as proteins. The objective of this study was to evaluate the anthelmintic potential of a protease purified from the latex of Ficus benjamina against H. contortus . Fresh latex was collected from plants via small incisions in the green stems, the rubber was removed by centrifugation, and the latex protein extract (LPE) was obtained...
November 8, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
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