Results 31 to 40 of about 2,480 (172)

Two new Brazilian species of Loxosceles Heinecken & Lowe, 1832 with remarks on amazonica and rufescens groups (Araneae, Sicariidae)

ZooKeys, 2017
The genus Loxosceles Heinecken & Lowe, 1832 has 91 representatives in the New World. Despite medical relevancy, the taxonomy of the genus is poorly understood.
Caroline Sayuri Fukushima, Rute Maria Gonçalves de Andrade, Rogério Bertani   +2 more
doaj   +3 more sources

Presença de Loxosceles similis Moenkhaus, 1898 (Araneae, Sicariidae) na Serra da Bodoquena, Estado de Mato Grosso do Sul, Brasil Presence of Loxosceles similis Moenkhaus, 1898 (Araneae, Sicariidae) in Bodoquena Range, State of Mato Grosso do Sul, Brazil

Revista da Sociedade Brasileira de Medicina Tropical, 2001
O veneno das aranhas do gênero Loxosceles causa lesão dermonecrótica e induz hemólise intravascular dependente de complemento, configurando um quadro clínico de intensa gravidade. No Brasil, as espécies L. gaucho L. intermedia e L.
Rute Maria Gonçalves de Andrade, Eunice Aparecida Bianchi Galati, Denise Vilarinho Tambourgi   +2 more
doaj   +1 more source

Anti-loxoscelic horse serum produced against a recombinant dermonecrotic protein of Brazilian Loxosceles intermedia spider neutralize lethal effects of Loxosceles laeta venom from Peru [PDF]

, 2015
In this work, an anti-loxoscelic serum was produced by immunizing horses with a recombinant dermonecrotic protein from Loxosceles intermedia (rLiD1). Anti-rLiD1 antibodies were able to recognize different species of Loxosceles venoms by Western Blot and ...
Yarleque, A., Bonilla, C., Tintaya, B., Chávez-Olórtegui, C., Machado de Avila, R.A., Duarte, C.G., Mendes, T.M., Guimarães, G., Silva, W.   +8 more
core   +1 more source

Recombinant Protein Containing B-Cell Epitopes of Different Loxosceles Spider Toxins Generates Neutralizing Antibodies in Immunized Rabbits

Frontiers in Immunology, 2018
Loxoscelism is the most important form of araneism in South America. The treatment of these accidents uses heterologous antivenoms obtained from immunization of production animals with crude loxoscelic venom.
Sabrina de Almeida Lima, Clara Guerra-Duarte, Fernanda Costal-Oliveira, Thais Melo Mendes, Luís F. M. Figueiredo, Daysiane Oliveira, Ricardo A. Machado de Avila, Valéria Pereira Ferrer, Dilza Trevisan-Silva, Silvio S. Veiga, João C. Minozzo, Evanguedes Kalapothakis, Carlos Chávez-Olórtegui   +12 more
doaj   +1 more source

Loxoscelismo dermonecrotico en bovinos

Revista Colombiana de Ciencia Animal Recia, 2020
Fueron atendidos por el Servicio Clínico Ambulatorio de Grandes Animales de la Facultad de Medicina Veterinaria y Zootecnia, Universidad de Córdoba, dos bovinos hembra, ambas de la raza Brahman, una novilla de 15 meses  y un peso de 150 Kg y una vaca de ...
José Alberto Cardona-Álvarez, Carlos José Lopez Galvis, Bernardo José Reyes-Bossa   +2 more
doaj   +1 more source

The synanthropic austral-most record of the species Loxosceles hirsuta and the formal record of Loxosceles laeta (Araneae: Sicariidae)

Revista de la Sociedad Entomológica Argentina, 2023
A formal record of the medically important species Loxosceles laeta (Nicolet, 1849) and new records of Loxosceles hirsuta Mello-Leitão, 1931 (Araneae: Sicariidae) are provided for La Pampa province, Argentina, comprising its southernmost record. The specimens of L.
PERALTA SEEN, Nicolás, DIEZ, Fernando
openaire   +2 more sources

Sphingomyelinase D activity in model membranes: structural effects of in situ generation of ceramide-1-phosphate. [PDF]

PLoS ONE, 2012
The toxicity of Loxosceles spider venom has been attributed to a rare enzyme, sphingomyelinase D, which transforms sphingomyelin to ceramide-1-phosphate. The bases of its inflammatory and dermonecrotic activity, however, remain unclear.
Roberto P Stock, Jonathan Brewer, Kerstin Wagner, Blanca Ramos-Cerrillo, Lars Duelund, Kit Drescher Jernshøj, Lars Folke Olsen, Luis A Bagatolli   +7 more
doaj   +1 more source

A Web of Coagulotoxicity: Failure of Antivenom to Neutralize the Destructive (Non-Clotting) Fibrinogenolytic Activity of Loxosceles and Sicarius Spider Venoms

Toxins, 2020
Envenomations are complex medical emergencies that can have a range of symptoms and sequelae. The only specific, scientifically-validated treatment for envenomation is antivenom administration, which is designed to alleviate venom effects.
Dwin Grashof, Christina N. Zdenek, James S. Dobson, Nicholas J. Youngman, Francisco Coimbra, Melisa Benard-Valle, Alejandro Alagon, Bryan G. Fry   +7 more
doaj   +1 more source

Confirmação da ocorrência de Loxosceles laeta (Nicolet, 1849) e Loxosceles intermedia Mello-Leitão, 1934 (Araneae; Sicariidae) no município de Pelotas, RS, Brasil [PDF]

, 2003
This work deals the occurrence confirmation of spider species, genus Loxosceles Heineken & Lowe, 1832, in Pelotas, Rio Grande do Sul, Brazil. L. laeta (Nicolet, 1849) and L. intermedia MelloLeitão, 1934 were the collected species. L.
Dornelles, José Eduardo Figueiredo, Rodrigues, Everton Nei Lopes   +1 more
core   +1 more source

The visual spectral sensitivity of the Chilean recluse spider Loxosceles laeta

Journal of Experimental Biology, 2019
Spiders are a large group of arthropods and nearly omnipresent in warm and temperate climates. They rely on tactile and visual information to hunt and breed, but compared to their mechanical senses, little is known about their visual systems. In this study we analyzed the visual spectral sensitivity of the Chilean recluse spider Loxosceles laeta, a ...
Felipe Tapia, Jesús Olivares, Oliver Schmachtenberg   +2 more
openaire   +2 more sources