Results 31 to 40 of about 3,843 (173)

Long time not seen: Expanding the records of Loxosceles amazonica (Araneae: Sicariidae) in the Amazonas state, Brazil [PDF]

open access: yesActa Amazonica, 2017
Spiders of the genus Loxosceles, commonly known as brown recluse spiders, can cause serious accidents in humans. Their venom has a powerful proteolytic and hemolytic action.
Marlus Q. ALMEIDA   +5 more
doaj   +2 more sources

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

open access: yesJournal 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   +8 more
doaj   +1 more source

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

open access: yesPLoS 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   +4 more
doaj   +1 more source

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

open access: yesEvolutionary 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   +3 more
doaj   +3 more sources

Aracnidismo: Caracteres diferenciales y manifestaciones clínicas. Revisión Sistemática

open access: yesKasmera, 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   +2 more
doaj   +1 more source

Loxosceles rufescens

open access: yes, 2023
Published as part of Al-Khazali, Azhar Mohammed, Kachel, Hamid Saeid, Zamani, Alireza & Hussen, Fenik Sherzad, 2023, An updated and annotated checklist of the spiders (Arachnida: Araneae) of Iraq, pp.
Al-Khazali, Azhar Mohammed   +3 more
openaire   +2 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

open access: yesRevista 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

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

open access: yesCheck 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   +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

open access: yesRevista 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   +2 more
doaj   +1 more source

An Easy Method to Sample Headspace Pheromones in the Field

open access: yesEthology, Volume 132, Issue 5, Page 365-371, May 2026.
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   +2 more
wiley   +1 more source

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