Luiz Ricardo Gourlart

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Chemical control based on the use of pyrethroid and organophosphate compounds has selected resistant genotypes in populations of Rhipicephalus (Boophilus) microplus. Point mutations in esterase-encoding genes represent one of the main resistance mechanisms in this species. In this study, the PCR-RFLP (polymerase chain reaction-restriction fragment length(More)
The cattle tick Boophilus microplus causes great damage in livestock and is considered one of the most important tropical ectoparasites. The traditional method of control is based on the intensive use of pesticides, however the indiscriminate use of these compounds over the years has led to the selection of resistant ticks. Hydrolases, particularly(More)
The Snake Venom Metalloproteinases (SVMPs) play a relevant role in the multifactorial inflammatory response induced by Bothrops envenomations. Neuwiedase, an SVMP isolated from Bothrops neuwiedi venom, is devoid of hemorrhagic activity on skin tests, but is able to induce myonecrosis and degrade fibrinogen, fibrin, type I collagen, fibronectin and laminin.(More)
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