Results 71 to 80 of about 2,179 (236)

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

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

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

Escorpiones (Arachnida: Scorpiones) depositados en la colección aracnológica del Museo Nacional de Historia Natural de Santo Domingo

Novitates Caribaea, 2011
La colección de escorpiones del MNHNSD contiene 255 especímenes, correspondientes a las familias Buthidae (4 géneros), Scorpionidae (Diplocentrinae, 2) y Hemiscorpiidae (Hormurinae, 1). Centruroides Marx, 1890, es el género mejor representado, con cinco (
Solanlly Carrero-Jiménez, Gabriel de los Santos   +1 more
doaj   +1 more source

A plurality of morphological characters need not equate with phylogenetic accuracy: A rare genomic change refutes the placement of Solifugae and Pseudoscorpiones in Haplocnemata

Evolution &Development, Volume 26, Issue 4, July 2024.
Developmental transcriptomic data support an unduplicated genome in a solifuge, disfavoring the traditional grouping of pseudoscorpions and camel spiders as Haplocnemata. Abstract Recent advances in higher‐level invertebrate phylogeny have leveraged shared features of genomic architecture to resolve contentious nodes across the tree of life.
Guilherme Gainett, Benjamin C. Klementz, Emily V. W. Setton, Catalina Simian, Hernán A. Iuri, Gregory D. Edgecombe, Alfredo V. Peretti, Prashant P. Sharma   +7 more
wiley   +1 more source

Towards Therapeutic Applications of Arthropod Venom K+‐Channel Blockers in CNS Neurologic Diseases Involving Memory Acquisition and Storage

Journal of Toxicology, Volume 2012, Issue 1, 2012., 2012
Potassium channels are the most heterogeneous and widely distributed group of ion channels and play important functions in all cells, in both normal and pathological mechanisms, including learning and memory processes. Being fundamental for many diverse physiological processes, K+‐channels are recognized as potential therapeutic targets in the ...
Christiano D. C. Gati, Márcia R. Mortari, Elisabeth F. Schwartz, Yonghua Ji   +3 more
wiley   +1 more source