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Histopathological characterization of skin and muscle lesions induced by lionfish () venom in a murine experimental model.
J Venom Anim Toxins Incl Trop Dis
January 2025
Department of Biochemistry, School of Medicine, University of Costa Rica, San José, Costa Rica.
Background: Fish venoms have been poorly characterized and the available information about their composition suggests they are uncomplicated secretions that, combined with epidermal mucus, could induce an inflammatory reaction, excruciating pain, and, in some cases, local tissue injuries.
Methods: In this study, we characterized the 24-hour histopathological effects of lionfish venom in a mouse experimental model by testing the main fractions obtained by size exclusion-HPLC. By partial proteomics analysis, we also correlated these effects with the presence of some potentially toxic venom components.
Larvicidal activity of methanolic and aqueous extracts of Lavandula dentata and Nerium oleander flowers against the vector of avian malaria Culiseta longiareolata.
Trop Biomed
December 2024
Farhat Abbes University, Department of Biochemistry, Biochemistry Laboratory, Setif, Algeria.
In light of the adverse effects of chemical insecticides on the environment and human health, as well as the development of mosquito resistance to them, this study explores the potential of methanol and aqueous flower extracts from Lavandula dentata and Nerium oleander as bioinsecticides against Culiseta longiareolata mosquitoes. Additionally, it aims to assess the impact of these extracts on enzymatic biomarkers and biochemical composition of fourth instar larvae of Culiseta longiareolata.Qualitative analysis revealed the presence of flavonoids, terpenes, gallic and catechic tannins in both plant extracts.
View Article and Find Full Text PDFA single-cell atlas of the Culex tarsalis midgut during West Nile virus infection.
PLoS Pathog
January 2025
Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA.
The mosquito midgut functions as a key interface between pathogen and vector. However, studies of midgut physiology and virus infection dynamics are scarce, and in Culex tarsalis-an extremely efficient vector of West Nile virus (WNV)-nonexistent. We performed single-cell RNA sequencing on Cx.
View Article and Find Full Text PDFGenomic analysis reveals hidden species diversity in Fabricius (Lepidoptera: Riodinidae).
Insecta mundi
November 2024
Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390-9050 USA.
Genomic analysis of [Fabricius], 1807 (Lepidoptera: Riodinidae Grote, 1895) reveals species richness higher than anticipated. As a result, one subgenus, 22 species, and one subspecies are proposed as new (type species or type localities in parenthesis): Grishin, ( Prittwitz, 1865), () Grishin, (Peru: Rio Pachitea, Monte Alegre), () Grishin, (Guyana: Cuyuni-Mazaruni), () Grishin, (Brazil: Santa Catarina), () Grishin, (Panama: Darién), () Grishin, (Ecuador: Santo Domingo), () Grishin, (Peru: Cuzco), () Grishin, (Panama: Chiriquí), () Grishin, (Mexico: Tamaulipas), () Grishin, (Mexico: Nuevo León), () Grishin, (Argentina: Salta), () Grishin, (Peru: Piura), () Grishin, (Bolivia: La Paz), () Grishin, (Mexico: Sonora), () Grishin, (Peru: Madre de Dios), () Grishin, (Bolivia: La Paz), () Grishin, (Mexico: Chiapas), () Grishin, (Panama: Darién), () Grishin, (Panama: Darién), () Grishin, (Panama: Darién), () Grishin, (Panama: Panamá), () Grishin, (Peru: Cuzco), () Grishin, (Brazil: São Paulo), and () Grishin, (Brazil: Paraná). The following five taxa are (not subspecies): () Schaus, 1928, (not () (Linnaeus, 1767)), () Stichel, 1910, (not () Westwood, 1851), () Stichel, 1929, (not () Godman and Salvin, 1886), () R.
View Article and Find Full Text PDFA nociceptor-specific RNAi screen in larvae identifies RNA-binding proteins that regulate thermal nociception.
PeerJ
January 2025
Department of Biology, Appalachian State University, Boone, North Carolina, United States.
Nociception is the process by which sensory neurons detect and encode potentially harmful environmental stimuli to generate behavioral responses. Nociceptor neurons exhibit plasticity in which their sensitivity to noxious stimuli and subsequent ability to drive behavior may be altered by environmental conditions, injury, infection, and inflammation. In some cases, nociceptor sensitization requires regulated changes in gene expression, and recent studies have indicated roles for post-transcriptional mechanisms in regulating these changes as an aspect of nociceptor plasticity.
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