Results 21 to 30 of about 265 (135)

Heterophilic antibodies in sera from individuals without loxoscelism cross-react with phospholipase D from the venom of Loxosceles and Sicarius spiders

Journal of Venomous Animals and Toxins including Tropical Diseases, 2018
Background Loxoscelism is a severe human envenomation caused by Loxosceles spider venom. To the best of our knowledge, no study has evaluated the presence of antibodies against Loxosceles venom in loxoscelism patients without treatment with antivenom ...
Tomás Arán-Sekul, José M. Rojas, Mario Subiabre, Victoria Cruz, William Cortés, Luis Osorio, Jorge González, Jorge E. Araya, Alejandro Catalán   +8 more
doaj   +1 more source

Two new species of the spider genus Loxosceles (Araneae, Sicariidae) from the Ecuadorian Andes [PDF]

Evolutionary Systematics
Two new species of the spider genus Loxosceles (Araneae: Sicariidae) from the Ecuadorian Andes are described: Loxosceles guayllabamba sp. nov. (male, female) and Loxosceles binfordae sp. nov. (male, female).
Nadine Dupérré, Danilo Harms, Verónica Crespo-Pérez, Elicio Tapia   +3 more
doaj   +3 more sources

On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts

European Journal of Taxonomy, 2017
Loxosceles Heineken & Lowe, 1832 spiders are infamous for their medical importance, but a taxonomic picture of the genus is still far from complete. In this study, the Chilean species of Loxosceles are described and mapped.
Antonio D. Brescovit, Andrés Taucare-Ríos, Ivan L. F. Magalhaes, Adalberto J. Santos   +3 more
doaj   +1 more source

Ciclo biológico y desarrollo de Loxosceles laeta (Nicolet, 1849) (Araneae, Scytodidae)

Acta Zoológica Lilloana, 2022
Se han criado arañas de la especie Loxosceles laeta desde el huevo hasta la etapa adulta. Se exponen las conclusiones establecidas en función de su estudio.
María Elena Galiano
doaj  

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

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

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