Results 131 to 140 of about 567 (157)
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Amblyomma sculptum (Amblyomma cajennense complex) tick population maintained solely by domestic pigs
Veterinary Parasitology: Regional Studies and Reports, 2016In Brazil Amblyomma sculptum from Amblyomma cajennense complex is a tick species with a rather broad distribution encompassing the Cerrado Biome and devastated areas of the Atlantic rainforest. This species is also the major vector to humans of Rickettsia rickettsii, agent of the Brazilian spotted fever.
Carolina Fonseca Osava +7 more
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Novel record of a tick Amblyomma sculptum with detection of piroplasm Rangelia vitalii DNA
Veterinary Parasitology: Regional Studies and Reports, 2018Rangelia 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 +4 more
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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 +8 more
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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 +8 more
openaire +2 more sources
Experimental and Applied Acarology, 2020
More than 70 tick species are found in Brazil, distributed over five genera and including main vectors of infectious disease agents affecting both animals and humans. The genus Amblyomma is the most relevant for public health in Brazil, wherein Amblyomma aureolatum, Amblyomma ovale and Amblyomma sculptum have been incriminated as vectors of Rickettsia ...
Renato Andreotti +2 more
exaly +3 more sources
More than 70 tick species are found in Brazil, distributed over five genera and including main vectors of infectious disease agents affecting both animals and humans. The genus Amblyomma is the most relevant for public health in Brazil, wherein Amblyomma aureolatum, Amblyomma ovale and Amblyomma sculptum have been incriminated as vectors of Rickettsia ...
Renato Andreotti +2 more
exaly +3 more sources
A silicon-membrane based artificial feeding system for Amblyomma sculptum nymphs
Experimental and Applied AcarologyThe aim of the study was to establish an artificial feeding system (AFS), based on silicon membranes, for Amblyomma sculptum nymphs and compare it to classical feeding systems using laboratory animals. Three cohorts of 60 nymphs were fed on a rabbit, calf, and with the newly established AFS using prewarmed (38 °C) defibrinated bovine blood.
Anna, Obiegala +6 more
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Research in Veterinary Science, 2021
Amblyomma sculptum is frequently observed parasitizing horses, responsible for economic losses, damage to the host''s skin and transmission of pathogens. The oxidative stress profile and inflammatory mechanisms involved in this parasitism remain poorly studied.
Bárbara Cristina Félix, Nogueira +6 more
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Amblyomma sculptum is frequently observed parasitizing horses, responsible for economic losses, damage to the host''s skin and transmission of pathogens. The oxidative stress profile and inflammatory mechanisms involved in this parasitism remain poorly studied.
Bárbara Cristina Félix, Nogueira +6 more
openaire +2 more sources
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 +10 more
openaire +2 more sources
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 +10 more
openaire +2 more sources
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 +3 more
openaire +2 more sources
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 +3 more
openaire +2 more sources
Amblyomma sculptum : genetic diversity and rickettsias in the
Abstract Amblyomma sculptum ( I xodida: I xodidae) B erlese, 1888 is the most important tick vector in B razil, transmitting the ...
K, Bitencourth +5 more
openaire +2 more sources
Analysis of Amblyomma sculptum haplotypes in an area endemic for Brazilian spotted fever.
Medical and veterinary entomology, 2017Amblyomma sculptum (Ixodida: Ixodidae) Berlese, 1888, a member of the Amblyomma cajennense complex, is the major vector of Brazilian spotted fever (BSF) in southeastern Brazil. In this study, the genetic diversity of A. sculptum populations in the state of Rio de Janeiro (RJ), Brazil, was investigated because genetic variability in tick populations may
K, Bitencourth +5 more
openaire +1 more source