Results 61 to 70 of about 3,430 (239)

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

open access: yesRevista 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

An animal model of oxaliplatin-induced cold allodynia reveals a crucial role for Na(v)1.6 in peripheral pain pathways [PDF]

open access: yes, 2013
Cold allodynia, pain in response to cooling, occurs during or within hours of oxaliplatin infusion and is thought to arise from a direct effect of oxaliplatin on peripheral sensory neurons.
Abrahamsen   +59 more
core   +1 more source

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

open access: yesJournal 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   +4 more
wiley   +1 more source

Scorpion Peptides: Potential Use for New Drug Development

open access: yesJournal 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   +3 more
wiley   +1 more source

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

open access: yesRevista 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

Non‐gonadal expression of piRNAs is widespread across Arthropoda

open access: yesFEBS 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   +6 more
wiley   +1 more source

Antiprotozoal and Antimycobacterial Activities of Pure Compounds from Aristolochia elegans Rhizomes

open access: yesEvidence-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   +7 more
wiley   +1 more source

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

open access: yesRevista 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)

open access: yesMolecular 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   +11 more
wiley   +1 more source

Evidencias morfológicas y moleculares que validan como especie a Centruroides tecomanus (Scorpiones, Buthidae) Morphological and molecular evidence supporting specific status for Centruroides tecomanus (Scorpiones, Buthidae)

open access: yesRevista Mexicana de Biodiversidad, 2009
Se presentan evidencias morfológicas y moleculares para reconocer a Centruroides limpidus tecomanus Hoffmann (Scorpiones: Buthidae) como especie válida y no como una subespecie de Centruroides limpidus (Karsch).
Javier Ponce-Saavedra   +3 more
doaj  

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