Results 41 to 50 of about 8,171 (197)

Cellular immune response of Amblyomma sculptum and Amblyomma americanum to entomopathogenic fungi: Implications for biological tick control

Medical and Veterinary Entomology, EarlyView.
Amblyomma sculptum showed a plasmatocyte‐dominant haemocyte profile. Beauveria bassiana increased plasmatocytes and reduced granulocytes, whereas Metarhizium robertsii did not cause significant changes. Amblyomma americanum showed a granulocyte‐dominant haemocyte profile. Beauveria bassiana reduced total haemocytes and granulocytes. B.
Cárita de Souza Ribeiro‐Silva, Valesca Henrique Lima, Salorrane Miranda N. Pinto, Gustavo Felizardo S. Sandes, Victor Hugo Ribeiro Costa, Albert Mulenga, Adela S. Oliva Chavez, Éverton Kort Kamp Fernandes   +7 more
wiley   +2 more sources

Susceptibility of Amblyomma sculptum, Vector of Rickettsia rickettsii, Ticks from a National Park and an Experimental Farm to Different Synthetic Acaricides. [PDF]

Pathogens, 2023
Amblyomma sculptum is a relevant tick species from a One Health perspective, playing an important role as a vector of Rickettsia rickettsii, the main agent of spotted fever rickettsiosis in Brazil. In this study, we evaluated the susceptibility of two A.
Cardoso ERN, Carvalho SF, Dias SA, Santos RA, Tavares MA, Neves LC, Paula WVF, Pádua GT, de Lima NJ, Paludo RLDR, Silva IS, Bittencourt RBM, Dos Santos GC, Nascimento FGJ, de Paula LGF, Dantas-Torres F, Monteiro CMO, Krawczak FDS.   +17 more
europepmc   +2 more sources

Immunoprotection Provided by Salivary and Intestinal Protein-Based Antigens Against the Ixodid Tick Amblyomma sculptum. [PDF]

Vaccines (Basel)
Background/Objectives: Amblyomma sculptum is among the most dangerous ticks in South America, as it is the species most associated with humans and is the main vector of Rickettsia rickettsii.
Natividade UA, Abreu JF, Ribeiro ICT, Pereira Filho AA, Silva AV, Ribeiro HS, Giunchetti RC, Sant'Anna MRV, Gontijo NF, Pereira MH, Araujo RN.   +10 more
europepmc   +2 more sources

Experimental infection of wild boars (Sus scrofa) with Rickettsia rickettsii and evaluation of the transmission potential to Amblyomma sculptum ticks. [PDF]

Parasit Vectors
Brazilian spotted fever is a tick-borne disease caused by the bacterium Rickettsia rickettsii, whose main vector in Brazil is the tick Amblyomma sculptum.
Neves LC, de Campos Binder L, de Freitas Paula WV, de Lima NJ, Cardoso ERN, Santos RA, Bittencourt RBM, Pádua GT, Dos Santos GC, Tavares MA, de Azevedo Serpa MC, Pinter A, de Almeida Felicio AL, Labruna MB, da Silva Krawczak F.   +14 more
europepmc   +2 more sources

Effects of Piper aduncum (Piperales: Piperaceae) Essential Oil and Its Main Component Dillapiole on Detoxifying Enzymes and Acetylcholinesterase Activity of Amblyomma sculptum (Acari: Ixodidae). [PDF]

Int J Mol Sci
Amblyomma sculptum is a species of tick in the family Ixodidae, with equids and capybaras among its preferred hosts. In this study, the acaricidal activity of the essential oil (EO) from Piper aduncum and its main component, Dillapiole, were evaluated ...
Pereira Filho AA, do Vale VF, de Oliveira Monteiro CM, Barrozo MM, Stanton MA, Yamaguchi LF, Kato MJ, Araújo RN.   +7 more
europepmc   +2 more sources

Amblyostatin-1, the first salivary cystatin with host immunomodulatory and anti-inflammatory properties from the Neotropical tick <i>Amblyomma sculptum</i>, vector of Brazilian spotted fever. [PDF]

Front Immunol
Introduction The Neotropical tick Amblyomma sculptum is the primary vector of Rickettsia rickettsii, the causative agent of Brazilian spotted fever, a disease associated with high fatality rates.
Molari WS, Jmel MA, Assis JB, Frazão-Silva A, Bernardi JM, Huamanrayme G, Medina JM, Esteves E, Antão SC, Costa GCA, Tanaka AS, Fogaça AC, Franta Z, Tirloni L, Kotsyfakis M, Sá-Nunes A.   +15 more
europepmc   +2 more sources

Diversity of rickettsiae in ticks (Acari: Ixodidae) collected from wild vertebrates in part of the Amazon, Cerrado, and Pantanal biomes in Brazil

Revista Brasileira de Parasitologia Veterinária, 2023
Ticks parasitizing 102 wild animals in the states of Mato Grosso and Goiás, Brazil were collected between 2015 and 2018. A total of 2338 ticks (865 males, 541 females, 823 nymphs, and 109 larvae) belonging to four genera (Amblyomma, Dermacentor ...
Anny Carolina Prati, Maerle Oliveira Maia, Thiago Fernandes Martins, Thaís Oliveira Morgado, Sandra Helena Ramiro Corrêa, Edson Junior Figueiredo Mendes, Rosa Helena dos Santos Ferraz, Jessica Rhaiza Mudrek, Christine Strüssmann, Dirceu Guilherme de Souza Ramos, Thiago Borges Fernandes Semedo, Make Kawatake Minetto, Daniel Moura de Aguiar, Richard Campos Pacheco, Andréia Lima Tomé Melo   +14 more
doaj   +1 more source

Detection of Rickettsia spp. in Animals and Ticks in Midwestern Brazil, Where Human Cases of Rickettsiosis Were Reported

Animals, 2023
Brazilian spotted fever (BSF) is the most important tick-borne diseases affecting humans in Brazil. Cases of BSF have recently been reported in the Goiás state, midwestern Brazil.
Lucianne Cardoso Neves, Warley Vieira de Freitas Paula, Luiza Gabriella Ferreira de Paula, Bianca Barbara Fonseca da Silva, Sarah Alves Dias, Brenda Gomes Pereira, Bruno Sérgio Alves Silva, Anaiá da Paixão Sevá, Filipe Dantas-Torres, Marcelo B. Labruna, Felipe da Silva Krawczak   +10 more
doaj   +1 more source

Identification of a non-host semiochemical from tick-resistant donkeys (Equus asinus) against Amblyomma sculptum ticks. [PDF]

Ticks Tick Borne Dis, 2019
Amblyomma sculptum is a tick affecting animal and human health across Argentina, Bolivia, Paraguay and Brazil. Donkeys, Equus asinus, are known to be resistant to A.
Ferreira LL, Sarria ALF, de Oliveira Filho JG, de Silva FO, Powers SJ, Caulfield JC, Pickett JA, Birkett MA, Borges LMF.   +8 more
europepmc   +2 more sources

Molecular Detection of Rickettsia spp. in Free Living Ticks in Military Instruction Areas in Southeast Brazil [PDF]

Brazilian Archives of Biology and Technology, 2023
The present study aimed for the molecular detection of Rickettsia spp. in ticks collected from military training areas in southeastern Brazil. Previously, a total of 9,374 free-living ticks in 66 military instruction areas of five Military Organizations (
Rubens Fabiano Soares Prado, Izabela Mesquita Araújo, Gilliard Ferreira, Bruna de Azevedo Baêta, Aline Nascimento Furtado de Freitas, Alexandro Guterres, Adivaldo Henrique da Fonseca, Matheus Dias Cordeiro   +7 more
doaj   +1 more source