نتایج جستجو برای: loxosceles

تعداد نتایج: 239  

Journal: :Kasmera 2022

Las arañas son artrópodos venenosos de distribución mundial, debido a su adaptabilidad y presencia en zonas tanto rurales como urbanas. Se establecieron objetivos determinar los caracteres morfológicos más resaltantes, mencionar las características diferenciales con otros animales ponzoñosos, identificar tres géneros importancia médica conocer distintivos, incluyendo la presentación clínica tra...

Journal: :Toxicon : official journal of the International Society on Toxinology 2004
Cibele Soares de Castro Flávia Galindo Silvestre Simone Costa Araújo de Menezes Yazbeck Gabriel Oldemir C Mangili Ivan Cruz Carlos Chávez-Olórtegui Evanguedes Kalapothakis

The venom of Loxosceles intermedia was investigated for the presence of insecticidal toxins active against Spodoptera frugiperda (Lepdoptera: Noctuidade), an insect that has caused great reductions in corn production in Brazil. A combination of gel filtration (Sephadex G-100) and ion-exchange chromatography (Carboxymethyl Cellulose, CM 52) resulted in four major fractions that were submitted to...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Frank C Schroeder Andrew E Taggi Matthew Gronquist Rabia U Malik Jacqualine B Grant Thomas Eisner Jerrold Meinwald

Extensive chemical analyses of spider venoms from many species have revealed complex mixtures of biologically active compounds, of which several have provided important leads for drug development. We have recently shown that NMR spectroscopy can be used advantageously for a direct structural characterization of the small-molecule content of such complex mixtures. Here, we report the application...

2017
Dilza Trevisan-Silva Aline V Bednaski Juliana S G Fischer Silvio S Veiga Nuno Bandeira Adrian Guthals Fabricio K Marchini Felipe V Leprevost Valmir C Barbosa Andrea Senff-Ribeiro Paulo C Carvalho

Venoms are a rich source for the discovery of molecules with biotechnological applications, but their analysis is challenging even for state-of-the-art proteomics. Here we report on a large-scale proteomic assessment of the venom of Loxosceles intermedia, the so-called brown spider. Venom was extracted from 200 spiders and fractioned into two aliquots relative to a 10 kDa cutoff mass. Each of t...

Journal: :Journal of medical entomology 2002
Richard S Vetter Diane K Barger

During a 6-mo period, 2,055 brown recluse spiders, Loxosceles reclusa Gertsch and Mulaik, were collected in a 19th-century-built, currently occupied home in Lenexa, KS. We conservatively estimate that at least 400 of these spiders were large enough to cause envenomation. Additional collections from more typically infested homes in Missouri and Oklahoma in 2001 yielded 45 and 30 brown recluse sp...

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