Results 81 to 90 of about 33,152 (158)

C5a receptor is cleaved by metalloproteases induced by sphingomyelinase D from Loxosceles spider venom

, 2012
Neutrophils are involved in numerous pathologies and are considered to be major contributors to the establishment of cutaneous loxoscelism after envenomation by the Loxosceles spider.
Tambourgi, Denise V., Gonçalves-de-Andrade, Rute M., Cinthya K. Okamoto, Denise V. Tambourgi, Okamoto, Cinthya K., Van Den Berg, Carmen Wilma, Carmen W. van den Berg, Rute M. Gonçalves-de-Andrade   +7 more
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Conformational changes of Loxosceles venom sphingomyelinases monitored by circular dichroism

, 2005
Envenomation by arachnids of the genus Loxosceles can induce a variety of biological effects, including dermonecrosis and hemolysis. We have previously identified in L.
van den Berge, C. W., Tambourgi, D. V., Andrade, S. A. de, Pedrosa, MFF, Oliva, MLV, Andrade, RMG de   +5 more
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Identification, cloning, expression and functional characterization of an astacin-like metalloprotease toxin from Loxosceles intermedia (brown spider) venom [PDF]

, 2007
Injuries caused by brown spiders (Loxosceles genus) are associated with dermonecrotic lesions with gravitational spreading and systemic manifestations. the venom has a complex composition containing many different toxins, of which metal loproteases have ...
Rafael B. da Silveira, Marcia H. Appel, Carl P. Dietrich, Dilza T. Silva, Gremski, Waldemiro, Silveira, Rafael B.da, Silva, Dilza T., Célia R. C. Franco, Ana C. M. Wille, Oldemir C. Mangili, Franco, Celia R. C., Nader, Helena Bonciani [UNIFESP], Appel, Marcia H., Mangili, Oldemir C., Toma, Leny [UNIFESP], Dietrich, Carl Peter [UNIFESP], Helena B. Nader, Leny Toma, Wille, Ana C. M., Chaim, Olga Meiri [UNIFESP], Olga M. Chaim, Waldemiro Gremski, Silvio S. Veiga, Veiga, Silvio S.   +23 more
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Brown spider (Loxosceles intermedia) venom triggers endothelial cells death by anoikis

, 2012
Brown spider (Loxosceles sp.) venom affects the endothelium of vessels and triggers disruptive activity in the subendothelial matrix. the vascular disorders observed after venom exposure include leukocyte and platelet activation, disseminated ...
Rizzo, Luiz Eduardo, Veiga, Silvio Sanches, Nader, Helena Bonciani, Souza-Fonseca-Guimaraes, Fernando, Trindade, Edvaldo S., Paludo, Katia Sabrina, Sene, Reginaldo Vieira, Nader, Helena Bonciani [UNIFESP], Franco, Celia Regina C., Nowatzki, Jenifer   +9 more
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The calcium-dependent protease of Loxosceles gaucho venom acts preferentially upon red cell band 3 transmembrane protein

Brazilian Journal of Medical and Biological Research, 2003
Eighty micrograms red blood cell (RBC) ghosts from patients who had previously exhibited the cutaneous form of loxoscelism (presenting localized dermonecrosis) and the viscerocutaneous form of loxoscelism (presenting dermonecrosis, hemoglobinuria ...
O.C. de O. Barretto, M. Satake, K. Nonoyama, J.L.C. Cardoso   +3 more
doaj   +1 more source

Caracterização funcional in vitro de um anticorpo que reconhece toxinas dos venenos de Loxosceles intermedia, Loxosceles laeta e Loxosceles gaucho [PDF]

, 2021
Orientador: Profa. Dra. Larissa Magalhães AlvarengaCoorientador: Profa. Dra. Alessandra Becker FincoMonografia (Bacharelado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Curso de Graduação em Ciências BiológicasInclui ...
Beltramino, Martina
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Cardiotoxicity Potential of Loxosceles intermedia Venom in Cavia porcelus

Background: Bites from spiders of the genus Loxosceles, popularly known as the brown recluse spider, can cause a syndrome called loxoscelism, which is classified into cutaneous and viscerocutaneous forms.
Lima Santos , Renato, Alves da Silva , Laice, Braga Costa dos Santos , Lucas, Raboch Lempek, Marthin, da Silva Ferreira , Raquel, Dias Araújo, Matheus, Melo, Marília Martins, Machado Botelho , Ana Flávia, Bretas Ullmann Fernandes , Paula, Chavez-Olórtegui , Carlos Delfin   +9 more
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Brain, liver and kidney lesions associated with Loxosceles intermedia envenomation in guinea pigs

Ciência Animal Brasileira
The venom of Loxosceles spiders is characterized by a complex protein composition, which underlies the clinical condition known as loxoscelism. This syndrome is characterized mainly by gravitational spreading dermonecrotic lesions, but also, in rare ...
Paula Bretas Ullmann Fernandes, Matheus Dias Araújo, Anna Paula Botelho França, Carlos Delfin Chávez-Olórtegui, Renato de Lima Santos, Ana Flávia Machado Botelho, Marília Martins Melo   +6 more
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Effects of the venom and the dermonecrotic toxin LiRecDT1 of Loxosceles intermedia in the rat liver

, 2008
Brown spider bites cause dermonecrotic lesions and systemic manifestations known as loxoscelism. the Loxosceles intermedia venom contains many active proteins, as phospholipase D.
Christoff, Adriana de Oliveira, Oliveira, Anabel de, Pereira, Amanda Leite Bastos, Veiga, Silvio Sanches, Acco, Alexandra, Chaim, Olga Meiri [UNIFESP], Telles, Jose Ederaldo Queiroz, Bracht, Adelar, Lugarini, Daiana, Paludo, Katia Sabrina [UNIFESP]   +9 more
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First report of in vitro selection of RNA aptamers targeted to recombinant Loxosceles laeta spider toxins

Biological Research, 2014
BACKGROUND: Loxoscelism is the envenomation caused by the bite of Loxosceles spp. spiders. It entails severe necrotizing skin lesions, sometimes accompanied by systemic reactions and even death.
Amalia Sapag, Catalina Salinas-Luypaert, Carlos Constenla-Muñoz   +2 more
doaj   +1 more source