Results 1 to 10 of about 2,276 (229)

Characterization of Sodium Channel Peptides Obtained from the Venom of the Scorpion <i>Centruroides bonito</i>. [PDF]

Toxins (Basel)
Five peptides were isolated from the venom of the Mexican scorpion Centruroides bonito by chromatographic procedures (molecular weight sieving, ion exchange columns, and HPLC) and were denoted Cbo1 to Cbo5.
Restano-Cassulini R, Olamendi-Portugal T, Riaño-Umbarila L, Zamudio FZ, Delgado-Prudencio G, Becerril B, Possani LD.   +6 more
europepmc   +4 more sources

Comparison of the Scorpionism Caused by Centruroides margaritatus, Tityus pachyurus and Tityus n. sp. aff. metuendus Scorpion Venoms in Colombia [PDF]

Toxins, 2021
Among other scorpion species, Colombia has two genera of the Buthidae family Centruroides and Tityus, considered to be dangerous to humans. This research shares scientific knowledge aiming to a better understanding about the pathophysiological effects of
Leydy Lorena Mendoza-Tobar, Ivonne Alejandra Meza-Cabrera, Juan C. Sepúlveda-Arias, Jimmy Alexander Guerrero-Vargas   +3 more
doaj   +3 more sources

Beta Toxins Isolated from the Scorpion <i>Centruroides hirsutipalpus</i> (Scorpiones; Buthidae) Affect the Function of Sodium Channels of Mammals. [PDF]

Toxins (Basel)
Scorpion venom toxins are important peptides being studied for their clinical significance. These peptides act by binding to ion channels in the membrane of nerve cells, causing the symptoms associated with scorpion stings (scorpionism). They principally
Valdez-Velazquez LL, Olamendi-Portugal T, Restano-Cassulini R, Riaño-Umbarila L, Jiménez-Vargas JM, Zamudio F, Salazar-Monge H, Becerril B, Possani LD.   +8 more
europepmc   +4 more sources

Unveiling the Protein Components of the Secretory-Venom Gland and Venom of the Scorpion Centruroides possanii (Buthidae) through Omic Technologies [PDF]

Toxins, 2023
Centruroides possanii is a recently discovered species of “striped scorpion” found in Mexico. Certain species of Centruroides are known to be toxic to mammals, leading to numerous cases of human intoxications in the country.
Patricia Elizabeth García-Villalvazo, Juana María Jiménez-Vargas, Gisela Jareth Lino-López, Erika Patricia Meneses, Manuel de Jesús Bermúdez-Guzmán, Carlos Eduardo Barajas-Saucedo, Iván Delgado Enciso, Lourival Domingos Possani, Laura Leticia Valdez-Velazquez   +8 more
doaj   +3 more sources

An overview of some enzymes from buthid scorpion venoms from Colombia: Centruroides margaritatus, Tityus pachyurus, and Tityus n. sp. aff. metuendus [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases
Background: In Colombia, several species of Buthidae scorpions belonging to the genera Centruroides and Tityus coexist, and their stings are considered life-threatening to humans because of their venom neurotoxins.
Leydy Lorena Mendoza-Tobar, Herlinda Clement, Iván Arenas, Juan Carlos Sepulveda-Arias, Jimmy Alexander Guerrero Vargas, Gerardo Corzo   +5 more
doaj   +3 more sources

The effect of microhabitat use on the foraging and diet of the striped bark scorpion, Centruroides vittatus (Buthidae: Scorpiones) in blackbrush habitat of south Texas [PDF]

The journal of arachnology, 2022
. Microhabitat use by predators can be influenced by prey availability, predator size and risk of cannibalism. The preferred microhabitat for a predator can be for foraging, feeding or as a refuge. In this study in south Texas, Centruroides vittatus (Say,
C. Neal McReynolds
openalex   +2 more sources

Full Neutralization of Centruroides sculpturatus Scorpion Venom by Combining Two Human Antibody Fragments [PDF]

Toxins, 2021
A fundamental issue of the characterization of single-chain variable fragments (scFvs), capable of neutralizing scorpion toxins, is their cross-neutralizing ability. This aspect is very important in Mexico because all scorpions dangerous to humans belong
Lidia Riaño-Umbarila, José Alberto Romero-Moreno, Luis M. Ledezma-Candanoza, Timoteo Olamendi-Portugal, Lourival D. Possani, Baltazar Becerril   +5 more
doaj   +2 more sources

Cvill6 and Cvill7: Potent and Selective Peptide Blockers of Kv1.2 Ion Channel Isolated from Mexican Scorpion <i>Centruroides villegasi</i>. [PDF]

Toxins (Basel)
Scorpion venoms are a rich source of peptides that modulate the activity of ion channels and can serve as a new drug for channelopathies. Cvill6 and Cvill7 are two new peptides isolated from the venom of Centruroides villegasi with MW of 4277 Da and 4287
Shakeel K, Naseem MU, Olamendi-Portugal T, Zamudio FZ, Possani LD, Panyi G.   +5 more
europepmc   +2 more sources

A Sting Operation: Risk Assessment and Venom Expenditure by Arizona Bark Scorpions (<i>Centruroides sculpturatus</i>) in a Defensive Context. [PDF]

Toxins (Basel)
Scorpion antipredator behavior incorporates risk assessment that informs decision-making and venom usage. We quantified antipredator behaviors of the clinically significant Arizona bark scorpion (Centruroides sculpturatus) in their natural environment ...
Marston LA, Fox GA, Hung KY, Delo SJ, Hayes WK.   +4 more
europepmc   +2 more sources

Colombian Scorpion Centruroides margaritatus: Purification and Characterization of a Gamma Potassium Toxin with Full-Block Activity on the hERG1 Channel

Toxins, 2021
The Colombian scorpion Centruroides margaritatus produces a venom considered of low toxicity. Nevertheless, there are known cases of envenomation resulting in cardiovascular disorders, probably due to venom components that target ion channels. Among them,
José Beltrán-Vidal, Edson Carcamo-Noriega, Nina Pastor, Fernando Zamudio-Zuñiga, Jimmy Alexander Guerrero-Vargas, Santiago Castaño, Lourival Domingos Possani, Rita Restano-Cassulini   +7 more
doaj   +2 more sources