Antiinsect
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Exposure to 50 Hz electromagnetic field changes the efficiency of the scorpion alpha toxin
AbstractBackground Extremely low-frequency (50 Hz) electromagnetic field (ELF-EMF) is produced by electric power transmission lines and electronic devices of everyday use. Some phenomena are proposed as “first effects” of ELF-EMF: the discrete changes in the membrane potential and the increase of the calcium channel activity as well as the intracellular
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 20/10/2015
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2. Estudo da constituição química de hypericum carinatum (guttiferae) e avaliação da atividade inseticida de hypericum polyanthemum / Study of chemical constituints from Hypericum carinatum (Guttiferae) and insecticidal activity value from Hypericum polyanthemum
O gênero Hypericum, família Guttiferae, engloba uma grande variedade de espécies, tendo para várias delas relatos de uso popular na terapêutica. Na região sul do Brasil ocorrem cerca de 20 espécies. Algumas delas vêm sendo estudadas e compostos de interesse farmacológico vêm sendo obtidos. Desta forma, para aprofundar estudos pré-existentes, deu-s
Publicado em: 2007
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3. Molecular Requirements for Recognition of Brain Voltage-gated Sodium Channels by Scorpion α-Toxins*
The scorpion α-toxin Lqh2 (from Leiurus quinquestriatus hebraeus) is active at various mammalian voltage-gated sodium channels (Navs) and is inactive at insect Navs. To resolve the molecular basis of this preference we used the following strategy: 1) Lqh2 was expressed in recombinant form and key residues important for activity at the rat brain channel rNav
American Society for Biochemistry and Molecular Biology.