Results 171 to 180 of about 8,171 (197)

Novel record of a tick Amblyomma sculptum with detection of piroplasm Rangelia vitalii DNA

Veterinary Parasitology: Regional Studies and Reports, 2018
Rangelia vitalii is the protozoan responsible for a febrile tick-borne disease known as "Nambiuvú" or "bleeding plague." The only competent vector of this protozoan recognized in Brazil is the tick Amblyomma aureolatum. The aim of this study was to identify R.
Sabrina Destri Emmerick, Campos, Helena Keiko, Toma, Camila de Souza Cerqueira, Machado, Renata Quintela, Assad, Nádia Regina Pereira, Almosny   +4 more
openaire   +2 more sources

Conspecific hyperparasitism in two Ornithodoros species (Ixodida: Argasidae) endemic to Brazil, and interspecific hyperparasitism between Amblyomma sculptum and Rhipicephalus microplus (Ixodida: Ixodidae)

Experimental and Applied Acarology
Hermes R Luz, Martins Thiago F, Barros-Battesti Darci M   +2 more
exaly   +2 more sources

Activity of the extract of Acmella oleracea on immature stages of Amblyomma sculptum (Acari: Ixodidae)

Veterinary Parasitology, 2018
This study evaluated the acaricidal activity of the methanol extract of Acmella oleracea with 0.187% of spilanthol against immature stages of Amblyomma sculptum. The packet test was used to evaluate the extract's activity on unengorged larvae and nymphs, testing concentrations of 0.4 to 50 mg/mL for larvae and 12.5 to 200.0 mg/mL for nymphs.
Paula, Marchesini, Alan Franco, Barbosa, Cristiane, Franco, Tatiane, Novato, Mirza Nalesso Gomes, Sanches, Mário Geraldo, de Carvalho, Rodrigo Luiz, Fabri, Erik, Daemon, Caio Márcio Oliveira, Monteiro   +8 more
openaire   +2 more sources

Pesquisa sobre o potencial antitumoral de peptídeos do carrapato Amblyomma sculptum: uma estratégica para busca de novas biomoléculas de importância médica e farmacológica

Brazilian Journal of Health Review
Este artigo busca discutir o potencial biólogico presente na Amazônia, especialmente a partir do carrapato Amblyomma sculptum, como insumo viável para a produção de medicamentos importantes no tratamento do câncer.
J. Mariano, Higo Nasser Sant’anna Moreira, Ian Silva de Sousa, Patricia Florencio Ferreira de Alencar, A. C. D. O. Sousa, Zoila Gabriela Oliveira Romero   +5 more
semanticscholar   +1 more source

A deep insight into the whole transcriptome of midguts, ovaries and salivary glands of the Amblyomma sculptum tick

Parasitology International, 2017
Ticks stand out as the second most important vector of human pathogens and their control is a key issue for public health strategies. The success of these arthropods to parasitize a large range of vertebrate hosts and their importance as a vector of rickettsiosis are intimately related with the physiology of its internal organs.
Higo Nasser Santanna, Moreira, Rafael Mazioli, Barcelos, Pedro Marcus Pereira, Vidigal, Raphael Contelli, Klein, Carlos Emmanuel, Montandon, Talles Eduardo Ferreira, Maciel, Juliana Fernandes Areal, Carrizo, Paulo Henrique, Costa de Lima, Adriano Carlos, Soares, Maria Marlene, Martins, Cláudio, Mafra   +10 more
openaire   +2 more sources

Babesia bigemina (smith and Kilbourne, 1893) detection in Amblyomma sculptum (Berlese, 1888) ticks in the Mato Grosso do Sul state, Brazil.

Parasitology international
Ticks parasitize various hosts, including humans, and are known to transmit pathogens that can be harmful not only to animals but also to humans. To evaluate the possible presence of pathogens in ticks, we aimed to collect and identify tick fauna ...
Joelly Corrêa dos Santos, M. Garcia, P. O. Duarte, L. M. Oshiro, F. I. Martins, Leandro de Oliveira Souza Higa, Álvaro Aragão de Lima, R. Andreotti   +7 more
semanticscholar   +1 more source

Capybaras (Hydrochoerus hydrochaeris) as amplifying hosts of Rickettsia rickettsii to Amblyomma sculptum ticks: Evaluation during primary and subsequent exposures to R. rickettsii infection.

Ticks and Tick-borne Diseases, 2020
Rickettsia rickettsii is the agent of Brazilian spotted fever (BSF), the most lethal tick-borne disease in the western hemisphere. Amblyomma sculptum is the main vector of R. rickettsii in southeastern Brazil. Capybaras act as primary hosts for this tick
Alejandro Ramírez-Hernández, Francisco Uchoa, M. C. Serpa, L. C. Binder, C. E. Souza, M. Labruna   +5 more
semanticscholar   +1 more source

Anti-neoplastic activity of Amblyomma sculptum, Amblyomma parvum and Rhipicephalus sanguineus tick saliva on breast tumor cell lines

Toxicon, 2018
Cancer is one of the most troubling diseases and is becoming increasingly common. Breast cancer has a high cure rate when diagnosed early, but when diagnosed late, treatment is frequently painful, devastating and unsuccessful. The search for new treatments that are more effective and less harmful has led to several substances and biomolecules from ...
Ana Carolina Prado Sousa, Carlo José Freire Oliveira, Matias Pablo Juan Szabó, Marcelo José Barbosa Silva   +3 more
openaire   +2 more sources

Amblyomma sculptum : genetic diversity and rickettsias in the B razilian C errado biome

Medical and Veterinary Entomology, 2017
Abstract Amblyomma sculptum ( I xodida: I xodidae) B erlese, 1888 is the most important tick vector in B razil, transmitting the ...
K, Bitencourth, M, Amorim, S V, DE Oliveira, R L, Caetano, C M, Voloch, G S, Gazêta   +5 more
openaire   +2 more sources

Gené's Organ of Amblyomma sculptum (Acari: Ixodidae): Morphological Aspects on the First Day of Oviposition and Participation in the Lipid Composition of the Egg Wax.

Archives of Insect Biochemistry and Physiology
The Gené's organ (GO) secretes a waxy substance on eggs that reduces water loss and has antimicrobial properties. The current study evaluated morphological and histochemical aspects of GO in Amblyomma sculptum on the 1st day of oviposition (DOV), as well
Marcelo Francisco Dos Santos, Isabele da Costa Angelo, Hector Oreliana Fernandes Faria, Sayuri Miyamoto, D. Spadacci-Morena, M. Lallo   +5 more
semanticscholar   +1 more source