Results 11 to 20 of about 904 (163)

A new species of Loxosceles (Araneae, Sicariidae) from Tunisia [PDF]

ZooKeys, 2009
A new species of the spider genus Loxosceles, L. mrazig sp. n., found in Tunisia is described and illustrated. The male bulb shows a high degree of morphological similarity to that of L.
Carles Ribera, Enric Planas
doaj   +2 more sources

Toxicological Characterization and Phospholipase D Activity of the Venom of the Spider Sicarius thomisoides [PDF]

Toxins, 2020
Envenomation by Loxosceles spiders (Sicariidae family) has been thoroughly documented. However, little is known about the potential toxicity of members from the Sicarius genus.
Tomás Arán-Sekul, Ivanka Perčić-Sarmiento, Verónica Valencia, Nelly Olivero, José M. Rojas, Jorge E. Araya, Andrés Taucare-Ríos, Alejandro Catalán   +7 more
doaj   +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 [PDF]

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   +2 more sources

Brown Spiders’ Phospholipases-D with Potential Therapeutic Applications: Functional Assessment of Mutant Isoforms [PDF]

Biomedicines, 2021
Phospholipases-D (PLDs) found in Loxosceles spiders’ venoms are responsible for the dermonecrosis triggered by envenomation. PLDs can also induce other local and systemic effects, such as massive inflammatory response, edema, and hemolysis.
Thaís Pereira da Silva, Fernando Jacomini de Castro, Larissa Vuitika, Nayanne Louise Costacurta Polli, Bruno César Antunes, Marianna Bóia-Ferreira, João Carlos Minozzo, Ricardo Barros Mariutti, Fernando Hitomi Matsubara, Raghuvir Krishnaswamy Arni, Ana Carolina Martins Wille, Andrea Senff-Ribeiro, Luiza Helena Gremski, Silvio Sanches Veiga   +13 more
doaj   +2 more sources

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   +1 more source

Dimorfismo sexual y morfología funcional de las extremidades de Loxosceles laeta (Nicolet, 1849) [PDF]

Gayana, 2016
Las relaciones alométricas entre rasgos morfológicos aportan evidencia de las fuerzas evolutivas que actúan sobre un rasgo particular. Las arañas que viven a ras de suelo son menos dimórficas que las que construyen telas, lo que ha sido atribuido a sus ...
Mauricio Canals, Andrés Taucare-Rios, Rigoberto Solis, Lucila Moreno   +3 more
doaj   +3 more sources

Picadura de araña marrón (Loxosceles laeta). Presentación de un caso

Revista Información Científica, 2018
Se presentó un caso tratado en la Unidad Básica de Salud del poblado Pedras municipio Matoes Do Norte estado Maranhao Brasil, de una gestante de 32.4 semanas con lesión necrótica en la cara interna del muslo derecho provocado por la picadura de una araña
Moraima Martínez Martin, Jorge Luis Álvarez Poveda, Magela Eunice Nicot Martínez, Yonger Moreno Martínez   +3 more
doaj   +1 more source

Switching the substrate specificity of lysoplasmalogen‐specific phospholipase D

FEBS Open Bio, Volume 11, Issue 4, Page 1132-1143, April 2021., 2021
Lysoplasmalogen‐specific phospholipase D (LyPls‐PLD) intrinsically has a high affinity for choline lysoplasmalogen (LyPlsCho). By rational site‐directed mutagenesis (F211L), we converted LysPls‐PLD to a version (LysoPAF‐PLD) that has a high affinity for LysoPAF rather than the natural substrate LyPlsCho.
Takayuki Oyama, Kazutaka Murayama, Daisuke Sugimori   +2 more
wiley   +1 more source

A new species of Loxosceles Heineken & Lowe, 1832 (Araneae: Sicariidae) from Chile

Revista Chilena de Entomología, 2022
A new species of Loxosceles of the laeta species-group, L. vicentei sp. nov., found in Chile is described and illustrated. The male of this species can be distinguished from that of other species by having a long and straight embolus with a truncated tip.
Andrés Taucare-Ríos, Antonio D. Brescovit, Javier Villablanca   +2 more
doaj   +1 more source

Refugia Preferences by the SpidersLoxosceles reclusaandLoxosceles laeta(Araneae: Sicariidae) [PDF]

Journal of Medical Entomology, 2008
A variety of refugia were offered to different instars of brown recluse spiders, Loxosceles reclusa Gertsch and Mulaik, and a South American recluse spider, L. laeta (Nicolet), to determine whether they preferred certain types of refugia spaces. Variables included (1) crevice widths ranging from 3.2 to 21 mm, (2) horizontal and vertical orientations ...
Richard S, Vetter, Michael K, Rust
openaire   +2 more sources