Results 51 to 60 of about 2,276 (229)

A multigene approach to identify the scorpion species (Arachnida: Scorpiones) of Colima, Mexico, with comments on their venom diversity

Revista Mexicana de Biodiversidad
Scorpion species diversity in Colima was investigated with a multigene approach. Fieldwork produced 34 lots of scorpions that were analyzed with 12S rDNA, 16S rDNA, COI, and 28S rDNA genetic markers.
Edmundo González-Santillán, Laura L., Ofelia Delgado-Hernández, Jimena I. Cid-Uribe, María Teresa Romero-Gutiérrez, Lourival D. Possani   +5 more
doaj   +1 more source

Inhibition of cGMP‐Signalling Rescues Retinal Ganglion Cells From Axotomy‐Induced Degeneration

Journal of Neurochemistry, Volume 169, Issue 4, April 2025.
Retinal ganglion cell (RGC) axons are myelinated only beyond the lamina cribrosa, that is, when leaving the eye. Axotomy‐induced RGC degeneration is likely to be related to excessive nitric oxide (NO) production, leading to an over‐production of cGMP, over‐activation of protein kinase G (PKG) and excessive phosphorylation of target proteins, such as ...
Katia Ihadadene, Azdah Hamed A Fallatah, Yu Zhu, Arianna Tolone, François Paquet‐Durand   +4 more
wiley   +1 more source

Scorpion Peptides: Potential Use for New Drug Development

Journal of Toxicology, Volume 2013, Issue 1, 2013., 2013
Several peptides contained in scorpion fluids showed diverse array of biological activities with high specificities to their targeted sites. Many investigations outlined their potent effects against microbes and showed their potential to modulate various biological mechanisms that are involved in immune, nervous, cardiovascular, and neoplastic diseases.
BenNasr Hmed, Hammami Turky Serria, Zeghal Khaled Mounir, Robert Tanguay   +3 more
wiley   +1 more source

Alacranes (Arachnida: Scorpiones) de Frontera Corozal, en la selva lacandona, Chiapas, México, con la descripción de una nueva especie de Diplocentrus (Diplocentridae)

Revista Mexicana de Biodiversidad, 2007
SE REALIZARON RECOLECTAS DIURNAS Y NOCTURNAS EN LA COMUNIDAD DE FRONTERA COROZAL, MUNICIPIO DE OCOSINGO, CHIAPAS, MÉXICO. SE REGISTRAN 3 ESPECIES DE ESCORPIONES, 2 DE LA FAMILIA BUTHIDAE Y UNA DE LA FAMILIA DIPLOCENTRIDAE.
ÓSCAR F. FRANCKE B.
doaj   +1 more source

Non‐gonadal expression of piRNAs is widespread across Arthropoda

FEBS Letters, Volume 599, Issue 1, Page 3-18, January 2025.
PIWI‐interacting RNAs (piRNAs) are known to protect the germline genome from transposable elements. Recently, evidence for their non‐gonadal expression has begun to emerge in some species. In this Perspective article, we combine an extensive literature review with a large analysis of transcriptomic data across arthropod species to investigate non ...
Takahisa Yamashita, Krystian Komenda, Rafał Miłodrowski, Dominik Robak, Szymon Szrajer, Tomasz Gaczorek, Guillem Ylla   +6 more
wiley   +1 more source

Antiprotozoal and Antimycobacterial Activities of Pure Compounds from Aristolochia elegans Rhizomes

Evidence-Based Complementary and Alternative Medicine, Volume 2012, Issue 1, 2012., 2012
We analyzed the antimycobacterial activity of the hexane extract of rhizomes from Aristolochia elegans. Some compounds of this extract were purified and tested against a group of drug‐resistant Mycobacterium tuberculosis strains. We also evaluated their antiprotozoal activities. The hexane extract was active against M. tuberculosis H37Rv at a MIC = 100 
Adelina Jiménez-Arellanes, Rosalba León-Díaz, Mariana Meckes, Amparo Tapia, Gloria María Molina-Salinas, Julieta Luna-Herrera, Lilián Yépez-Mulia, Vincenzo De Feo   +7 more
wiley   +1 more source

Nueva especie de alacrán del género Centruroides (Scorpiones, Buthidae) del estado de Jalisco, México

Revista Mexicana de Biodiversidad, 2011
Se describe Centruroides mascota sp. nov. de Mascota, Estado de Jalisco, México. Se hace una comparación con las especies morfológica y geográficamente más cercanas: C. elegans Thorell, C. hirsutipalpus Ponce y Francke, C. infamatus (Koch.), C.
Javier Ponce Saavedra, Oscar F. Francke
doaj   +1 more source

Three Novel Spider Genomes Unveil Spidroin Diversification and Hox Cluster Architecture: Ryuthela nishihirai (Liphistiidae), Uloborus plumipes (Uloboridae) and Cheiracanthium punctorium (Cheiracanthiidae)

Molecular Ecology Resources, Volume 25, Issue 1, January 2025.
ABSTRACT Spiders are a hyperdiverse taxon and among the most abundant predators in nearly all terrestrial habitats. Their success is often attributed to key developments in their evolution such as silk and venom production and major apomorphies such as a whole‐genome duplication.
Yannis Schöneberg, Tracy Lynn Audisio, Alexander Ben Hamadou, Martin Forman, Jiří Král, Tereza Kořínková, Eva Líznarová, Christoph Mayer, Lenka Prokopcová, Henrik Krehenwinkel, Stefan Prost, Susan Kennedy   +11 more
wiley   +1 more source

Effects of Intraguild Predation: Evaluating Resource Competition between Two Canid Species with Apparent Niche Separation

International Journal of Ecology, Volume 2012, Issue 1, 2012., 2012
Many studies determine which habitat components are important to animals and the extent their use may overlap with competitive species. However, such studies are often undertaken after populations are in decline or under interspecific stress. Since habitat selection is not independent of interspecific stress, quantifying an animal′s current landscape ...
Adam J. Kozlowski, Eric M. Gese, Wendy M. Arjo, Andrew Sih   +3 more
wiley   +1 more source

Una especie nueva de alacrán del género Centruroides (Scorpiones: Buthidae) del noroeste de México

Revista Mexicana de Biodiversidad, 2019
Se describe Centruroides lauriadnae sp. n. del estado de Sonora, México, perteneciente al grupo de los llamados alacranes “rayados” dentro del género (sensu Hoffmann, 1932). Se compara con las 2 especies del género registradas para Sonora: C. pallidiceps
Javier Ponce-Saavedra, Oscar F. Francke
doaj   +1 more source