Results 11 to 20 of about 14,304 (181)

Geographical distribution of Amblyomma cajennense (sensu lato) ticks (Parasitiformes: Ixodidae) in Brazil, with description of the nymph of A. cajennense (sensu stricto). [PDF]

Parasit Vectors, 2016
Until recently, Amblyomma cajennense (Fabricius, 1787) was considered to represent a single tick species in the New World. Recent studies have split this taxon into six species. While the A. cajennense species complex or A. cajennense (sensu lato) (s.l.)
Martins TF, Barbieri AR, Costa FB, Terassini FA, Camargo LM, Peterka CR, de C Pacheco R, Dias RA, Nunes PH, Marcili A, Scofield A, Campos AK, Horta MC, Guilloux AG, Benatti HR, Ramirez DG, Barros-Battesti DM, Labruna MB.   +17 more
europepmc   +4 more sources

Bacteria associated with Amblyomma cajennense tick eggs. [PDF]

Genet Mol Biol, 2015
Ticks represent a large group of pathogen vectors that blood feed on a diversity of hosts. In the Americas, the Ixodidae ticks Amblyomma cajennense are responsible for severe impact on livestock and public health.
Machado-Ferreira E, Vizzoni VF, Piesman J, Gazeta GS, Soares CA.   +4 more
europepmc   +4 more sources

Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation. [PDF]

BMC Evol Biol, 2013
Amblyomma cajennense F. is one of the best known and studied ticks in the New World because of its very wide distribution, its economical importance as pest of domestic ungulates, and its association with a variety of animal and human pathogens.
Beati L, Nava S, Burkman EJ, Barros-Battesti DM, Labruna MB, Guglielmone AA, Cáceres AG, Guzmán-Cornejo CM, León R, Durden LA, Faccini JL.   +10 more
europepmc   +4 more sources

Phylogenetic relationships of the Amblyomma cajennense complex (Acari: Ixodidae) at mitogenomic resolution. [PDF]

Ticks and Tick-borne Diseases, 2023
The genus Amblyomma is the third most diverse in the number of species within the Ixodidae, with practically half of its species distributed in the Americas, though there are also species occurring in Africa, Asia, and Australia.
Andrea P. Cotes-Perdomo, S. Nava, L. Castro, Fredy A. Rivera-Páez, J. Cortés-Vecino, J. Uribe   +5 more
semanticscholar   +2 more sources

Pesquisa de Rickettsia spp em carrapatos Amblyomma cajennense e Amblyomma dubitatum no Estado de São Paulo Survey of Rickettsia spp in the ticks Amblyomma cajennense and Amblyomma dubitatum in the State of São Paulo [PDF]

Revista da Sociedade Brasileira de Medicina Tropical, 2009
Foi pesquisada a presença de riquétsias em 3.545 carrapatos Amblyomma cajennense e 2.666 Amblyomma dubitatum. Através do teste de hemolinfa, reação em cadeia pela polimerase e isolamento de rickettsia em cultivo celular, todos os Amblyomma cajennense ...
Richard Campos Pacheco, Maurício Cláudio Horta, Adriano Pinter, Jonas Moraes-Filho, Thiago Fernandes Martins, Marcello Schiavo Nardi, Savina Silvana Aparecida Lacerra de Souza, Celso Eduardo de Souza, Matias Pablo Juan Szabó, Leonardo José Richtzenhain, Marcelo Bahia Labruna   +10 more
doaj   +2 more sources

Efficacy of sarolaner (Simparic™) against induced infestations of Amblyomma cajennense on dogs. [PDF]

Parasit Vectors, 2017
Amblyomma cajennense is the main vector of Rickettsia rickettsii which causes Brazilian spotted fever. This adult tick preferably infests horses and capybaras, but has low host specificity during its immature stages, thus posing a threat to humans and ...
Scott F, Franz L, Campos DR, Azevedo TRC, Cunha D, Six RH, Maeder S, Cree T.   +7 more
europepmc   +2 more sources

Inhibition of the classical pathway of the complement system by saliva of Amblyomma cajennense (Acari: Ixodidae). [PDF]

Exp Parasitol, 2016
Inhibition of the complement system during and after haematophagy is of utmost importance for tick success in feeding and tick development. The role of such inhibition is to minimise damage to the intestinal epithelium as well as avoiding inflammation ...
Franco PF, Silva NC, Fazito do Vale V, Abreu JF, Santos VC, Gontijo NF, Valenzuela JG, Pereira MH, Sant'Anna MR, Gomes AP, Araujo RN.   +10 more
europepmc   +2 more sources

Immunosuppressive effects of Amblyomma cajennense tick saliva on murine bone marrow-derived dendritic cells. [PDF]

Parasit Vectors, 2015
BackgroundDendritic cells (DCs) are professional antigen-presenting cells with vital roles in the activation of host immunity. Ticks are bloodsucking arthropods that secrete bioactive compounds with immunomodulatory properties via their saliva.
Carvalho-Costa TM, Mendes MT, da Silva MV, da Costa TA, Tiburcio MG, Anhê AC, Rodrigues V, Oliveira CJ.   +7 more
europepmc   +2 more sources

Parâmetros biológicos de fêmeas adultas Amblyomma cajennense alimentadas em coelhos tratados com bioterápico ultradiluído Biological parameters of Amblyomma cajennense adult females fed on rabbits treated with ultradiluted biotherapic

Ciência Rural, 2008
Os bioterápicos são considerados medicamentos homeopáticos por serem preparados de acordo com a farmacotécnica homeopática, submetidos à diluição e dinamização.
Luciana Rodrigues de Almeida, Nathalie Costa da Cunha, Raquel Silva Lisbôa, Renata Cunha Madureira, Charles Passos Rangel, Eduardo Borges Viana, Adivaldo Henrique da Fonseca   +6 more
doaj   +2 more sources

Study of chelicerae in the tick Amblyomma cajennense (Fabricius 1787) by scanning electron microscopy

Revista da Sociedade Brasileira de Medicina Tropical, 1975
Chelicerae de Amblyomma cajennense foram examinados em microscopia de varredura. Esta técnica mostrou detalhes não evidenciáveis ao poder de resolução do microscópio ótico.
M. Ansel, M. Thibaut
doaj   +2 more sources