Results 1 to 10 of about 8,182 (169)

The sialotranscriptome of Amblyomma triste, Amblyomma parvum and Amblyomma cajennense ticks, uncovered by 454-based RNA-seq [PDF]

Parasites & Vectors, 2014
Background Tick salivary constituents antagonize inflammatory, immune and hemostatic host responses, favoring tick blood feeding and the establishment of tick-borne pathogens in hosts during hematophagy. Amblyomma triste, A. cajennense and A.
Gustavo Rocha Garcia, Luiz Gustavo Gardinassi, José Marcos Ribeiro, Elen Anatriello, Beatriz Rossetti Ferreira, Higo Nasser Santanna Moreira, Cláudio Mafra, Maria Marlene Martins, Matias Pablo Juan Szabó, Isabel Kinney Ferreira de Miranda-Santos, Sandra Regina Maruyama   +10 more
doaj   +6 more sources

First report of Amblyomma sculptum (Amblyomma cajennense complex) in a Brazilian state classified as a silent area for human rickettsiosis. [PDF]

Vet World, 2023
Background and Aim: Studies on ticks of public health concern in equine husbandry are scarce in the Northeastern region of Brazil. This study aimed to investigate the presence of ticks on horses in the State of Alagoas, which is classified as a silent ...
da Gama BC, Martins TF, Labruna MB, Vieira RFDC, de Almeida JC.   +4 more
europepmc   +5 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   +8 more sources

Virome analyses of Amblyomma cajennense and Rhipicephalus microplus ticks collected in Colombia. [PDF]

Acta Trop
Tick-borne viruses (TBV) have gained public health relevance in recent years due to the recognition of human-associated fatal cases and the increase in tick-borne disease and transmission.
Molina-Hoyos K, Montoya-Ruíz C, Aguilar PV, Pérez-Doria A, Díaz FJ, Rodas JD.   +5 more
europepmc   +4 more sources

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   +5 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   +6 more sources

Antiviral effect of the egg wax of Amblyomma cajennense (Acari: Ixodidae) [PDF]

Cytotechnology, 2012
The control of viral infections, especially those caused by influenza viruses, is of great interest in Public Health. Bio prospection has shown the presence of active principles in the hemolymph of arthropods, and in the salivary gland of ticks, and some of these are of interest for the development of new pharmacological drugs.
Ronaldo Zucatelli Mendonça, Eliana Nakano, Barros-Battesti D M   +2 more
exaly   +5 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   +5 more sources

Seasonal dynamics of Amblyomma cajennense (Fabricius, 1787) sensu stricto in a degraded area of the Amazon biome, with notes on Rickettsia amblyommatis infection. [PDF]

Parasit Vectors, 2023
Background The tick Amblyomma cajennense sensu stricto ( A. cajennense s.s.) frequently parasitizes animals and humans in the Amazon biome, in addition to being a vector of Rickettsia amblyommatis .
de Araújo FES, Martins TF, Ramos CCM, Nogueira RMS, Faccini JLH, Tavares MA, de Lima NJ, de Almeida Júnior EB, de Sousa-Paula LC, Dantas-Torres F, da Silva Krawczak F, Costa-Junior LM, Labruna MB, Dall Agnol LT, Luz HR.   +14 more
europepmc   +2 more sources

Incidental infestations of humans by hard ticks (Acari: Ixodidae) in Colombia: Case reports and record of Amblyomma cajennense sensu stricto. [PDF]

Ticks Tick Borne Dis
In Colombia, there are few studies that describe tick parasitism in humans, as well as its demographic and ecological characteristics. Additionally, multiple cases of human rickettsiosis caused by highly pathogenic Rickettsia species have been reported ...
Vargas-Martínez OE, Naranjo-Vargas LF, Aramendiz-Macías L, Díaz FJ, Quintero-Vélez JC, Martins TF, Rodas-González JD.   +6 more
europepmc   +2 more sources