Results 31 to 40 of about 3,454 (154)

Sphingomyelinase D from Loxosceles laeta Venom Induces the Expression of MMP7 in Human Keratinocytes: Contribution to Dermonecrosis. [PDF]

PLoS ONE, 2016
Envenomation by Loxosceles spider is characterized by the development of dermonecrosis. In previous studies, we have demonstrated that increased expression/secretion of matrix metalloproteinases 2 and 9, induced by Loxosceles intermedia venom Class 2 ...
Mara A Corrêa, Cinthya K Okamoto, Rute M Gonçalves-de-Andrade, Carmen W van den Berg, Denise V Tambourgi   +4 more
doaj   +1 more source

Aracnidismo: Caracteres diferenciales y manifestaciones clínicas. Revisión Sistemática

Kasmera, 2022
Las arañas son artrópodos venenosos de distribución mundial, debido a su adaptabilidad y presencia en zonas tanto rurales como urbanas. Se establecieron como objetivos determinar los caracteres morfológicos más resaltantes, mencionar las características
Glenda Coromoto Velásquez Serra, Camila Janina García Yuquilema, Lady Serrano Murillo   +2 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

Primeiro registro sinantrópico de Loxosceles laeta (Nicolet, 1849) (Araneae, Sicariidae) no Município do Rio de Janeiro, Estado do Rio de Janeiro First synanthropic record of Loxosceles laeta (Nicolet, 1849) (Araneae, Sicariidae) in the municipality of Rio de Janeiro, State of Rio de Janeiro

Revista da Sociedade Brasileira de Medicina Tropical, 2009
Loxosceles laeta é a espécie de aranha-marrom de maior importância médica, causando acidentes de maior gravidade, além de apresentar hábito sinantrópico.
Adriano Lima Silveira
doaj   +1 more source

Clinical Effects of the Immunization Protocol Using Loxosceles Venom in Naïve Horses

Toxins, 2022
Bites of brown spiders (Loxosceles spp.) are responsible for dermonecrotic lesions and potentially systemic envenoming that can lead to death. The only effective therapy is the use of the antivenom, usually produced in horses.
Ana Luísa Soares de Miranda, Bruno Cesar Antunes, João Carlos Minozzo, Sabrina de Almeida Lima, Ana Flávia Machado Botelho, Marco Túlio Gomes Campos, Carlos Delfin Chávez-Olórtegui, Benito Soto-Blanco   +7 more
doaj   +1 more source

Targeting Loxosceles spider Sphingomyelinase D with small-molecule inhibitors as a potential therapeutic approach for loxoscelism

Journal of Enzyme Inhibition and Medicinal Chemistry, 2019
Loxosceles spiders’ venoms consist of a mixture of proteins, including the sphingomyelinases D (SMases D), which are the main toxic components responsible for local and systemic effects in human envenomation.
Priscila Hess Lopes, Mário T. Murakami, Fernanda C. V. Portaro, Kerly Fernanda Mesquita Pasqualoto, Carmen van den Berg, Denise V. Tambourgi   +5 more
doaj   +1 more source

New record and distribution of Loxosceles amazonica Gertsch, 1967 (Araneae: Sicariidae) in the state of Ceará, Brazil [PDF]

Check List, 2014
The spiders of the genus Loxosceles Heineken & Lowe, 1832 have a wide distribution in tropical and temperate regions and 30 species have been recorded for South America.
Raul Azevedo, Paulo Texeira, Rômmulo Siqueira, Antonio Brescovit   +3 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

An Easy Method to Sample Headspace Pheromones in the Field

Ethology, EarlyView.
Females of the orb‐web spider Argiope bruennichi produces a pheromone to attract males for mating. Most of our knowledge about the pheromone and its strategical use by the females is known from the laboratory. While we have confidence in the validity of these results, we wanted to make sure and measure pheromones in the field.
Zoe Dössel, Katharina Weiss, Jutta M. Schneider   +2 more
wiley   +1 more source

Tetracycline Reduces Kidney Damage Induced by Loxosceles Spider Venom

Toxins, 2017
Envenomation by Loxosceles spider can result in two clinical manifestations: cutaneous and systemic loxoscelism, the latter of which includes renal failure.
Cinthya Kimori Okamoto, Carmen W. van den Berg, Mizuno Masashi, Rute M. Gonçalves-de-Andrade, Denise V. Tambourgi   +4 more
doaj   +1 more source