Results 1 to 10 of about 8,171 (197)

Amblyomma sculptum Salivary Protease Inhibitors as Potential Anti-Tick Vaccines. [PDF]

Front Immunol, 2020
Amblyomma sculptum is the main tick associated with human bites in Brazil and the main vector of Rickettsia rickettsii, the causative agent of the most severe form of Brazilian spotted fever. Molecules produced in the salivary glands are directly related
Costa GCA, Ribeiro ICT, Melo-Junior O, Gontijo NF, Sant'Anna MRV, Pereira MH, Pessoa GCD, Koerich LB, Oliveira F, Valenzuela JG, Giunchetti RC, Fujiwara RT, Bartholomeu DC, Araujo RN.   +13 more
europepmc   +6 more sources

Repellent Activity of the Botanical Compounds Thymol, Carvacrol, Nootkatone, and Eugenol Against <i>Amblyomma sculptum</i> Nymphs. [PDF]

Pathogens
This study evaluated the repellent activity of the botanical compounds thymol, carvacrol, nootkatone, and eugenol (5%), as well as the combination of 2.5% nootkatone + 2.5% eugenol, against Amblyomma sculptum nymphs under laboratory and field conditions.
Barrozo MM, Santos EF, Chagas HDF, Carvalho RA, Silva IS, de Souza Oliveira A, Faria LCF, Teixeira ALC, Zeringota V, Luz HR, Ferreira LL, Monteiro C.   +11 more
europepmc   +5 more sources

Fluazuron orally administered to guinea pigs: pharmacokinetic and efficacy against Amblyomma sculptum. [PDF]

Parasit Vectors, 2022
Background Brazilian spotted fever (BSF), the most lethal tick-borne disease in the Western Hemisphere, is caused by the bacterium Rickettsia rickettsii and transmitted by the bite of Amblyomma sculptum .
Borges DA, Cid YP, Magalhães VS, Alves MCC, Ferreira TP, Bonfim IV, Lima EAS, de Freitas JP, Scott FB.   +8 more
europepmc   +5 more sources

Anti-IL-4, Anti-IL-17, and Anti-IFN-Gamma Activity in the Saliva of <i>Amblyomma sculptum</i> Ticks. [PDF]

Int J Mol Sci
The saliva of hematophagous arthropods, such as ticks and triatomines, contains bioactive ligands capable of modulating immune molecules, including cytokines.
Sales-Campos H, Desidério CS, Trevisan RO, Timóteo RP, Flávio-Reis VHP, Pessoa-Gonçalves YM, da Silva MV, Esteves E, de Jesus Oliveira T, da Silva Junior PI, Oliveira CJF.   +10 more
europepmc   +3 more sources

The survival of Amblyomma sculptum ticks upon blood-feeding depends on the expression of an inhibitor of apoptosis protein. [PDF]

Parasit Vectors, 2023
Background The tick Amblyomma sculptum is the major vector of Rickettsia rickettsii , the causative agent of the highly lethal Brazilian spotted fever. It has been shown that R. rickettsii inhibits apoptosis in both human endothelial cells and tick cells.
Nassar M, Martins LA, de Assis JB, Esteves E, Sá-Nunes A, Labruna MB, Daffre S, Fogaça AC.   +7 more
europepmc   +2 more sources

Noteworthy records of the ticks Ornithodoros rostratus and Amblyomma sculptum parasitizing Pteronura brasiliensis in the central-western region of Brazil, with pathogen investigation notes. [PDF]

Rev Bras Parasitol Vet, 2023
A male of Pteronura brasiliensis (Carnivora: Mustelidae) was found dead on the banks of the Rio Negro, in the Pantanal wetlands of Mato Grosso do Sul state, Aquidauana municipality.
Barros-Battesti DM, André MR, Hoppe EGL, Seron G, Bassini-Silva R, Calchi AC, Andrade LO, Perin PP, Martins TF, Castro-Santiago AC, Leuchtenberger C, Almeida S, Foerster N, Furtado M, de Castro Jacinavicius F.   +14 more
europepmc   +2 more sources

Repellent Activity of DEET Combined with Botanical Compounds Against <i>Amblyomma sculptum</i> Nymphs: Laboratory and Field Evaluations. [PDF]

Pathogens
This study evaluated the repellent activity of DEET, eugenol, methyl eugenol, 1,8-cineole, and their combinations against Amblyomma sculptum nymphs through laboratory and field tests.
Barrozo MM, Chagas HDF, Damaceno GBR, Santos EF, Carvalho RA, Silva IS, Vale FL, Sousa LJMPE, Luz HR, Ferreira LL, Monteiro C.   +10 more
europepmc   +2 more sources

Characterization of bacterial microbiome and molecular detection of rickettsiosis in free-living ticks (Amblyomma sculptum Berlese, 1888). [PDF]

Sci Rep
Amblyomma sculptum is a major tick species in southeastern Brazil and an important vector in the epidemiology of Brazilian Spotted Fever (BSF). This study characterized the bacterial microbiome of free-living A.
Almeida AP, Moncau-Gadbem CT, Goes CP, Garcia IS, da Silva TR, Clemente LG, Coutinho LL.   +6 more
europepmc   +2 more sources

Habitat selection in natural and human-modified landscapes by capybaras (Hydrochoerus hydrochaeris), an important host for Amblyomma sculptum ticks. [PDF]

PLoS One, 2020
Dias TC, Stabach JA, Huang Q, Labruna MB, Leimgruber P, Ferraz KMPMB, Lopes B, Luz HR, Costa FB, Benatti HR, Correa LR, Nievas AM, Monticelli PF, Piovezan U, Szabó MPJ, Aguiar DM, Brites-Neto J, Port-Carvalho M, Rocha VJ.   +18 more
europepmc   +1 more source

Clinical and serological evaluation of capybaras (Hydrochoerus hydrochaeris) successively exposed to an Amblyomma sculptum-derived strain of Rickettsia rickettsii. [PDF]

Sci Rep, 2020
Ramírez-Hernández A, Uchoa F, de Azevedo Serpa MC, Binder LC, Rodrigues AC, Szabó MPJ, Fogaça A, Souza CE, Labruna MB.   +8 more
europepmc   +1 more source