Results 51 to 60 of about 7,680 (212)

Parthenogenesis in scorpions: some history - new data

Journal of Venomous Animals and Toxins including Tropical Diseases, 2008
Parthenogenesis, a rare phenomenon in Chelicerates, apart from mites, is reviewed in scorpions, notably Tityus serrulatus Lutz & Mello from Brazil, Tityus columbianus (Thorell) from Colombia and Tityus metuendus Pocock from Peru and Brazil.
W. R. Lourenço
doaj   +1 more source

Model for Vaccine Design by Prediction of B‐Epitopes of IEDB Given Perturbations in Peptide Sequence, In Vivo Process, Experimental Techniques, and Source or Host Organisms

Journal of Immunology Research, Volume 2014, Issue 1, 2014., 2014
Perturbation methods add variation terms to a known experimental solution of one problem to approach a solution for a related problem without known exact solution. One problem of this type in immunology is the prediction of the possible action of epitope of one peptide after a perturbation or variation in the structure of a known peptide and/or other ...
Humberto González-Díaz, Lázaro G. Pérez-Montoto, Florencio M. Ubeira, Darren R. Flower   +3 more
wiley   +1 more source

New record and occurrence map of Tityus serrulatus Lutz & Mello, 1922 (Scorpiones, Buthidae) in the state of Rio Grande do Sul, southern Brazil [PDF]

Check List, 2015
The Brazilian scorpion Tityus serrulatus is recorded for the first time in the central region of Rio Grande do Sul, thus filling a gap of 567 km in its distribution.
Conrado Mario da Rosa, Arthur Abegg, Leandro Borges, Gabriela Bitencourt, Rocco Di Mare   +4 more
doaj   +3 more sources

Convulsive and Neurodegenerative Effects in Rats of Some Isolated Toxins from the Tityus bahiensis Scorpion Venom

Journal of Toxins, Volume 2013, Issue 1, 2013., 2013
Despite Tityus bahiensis being one of the most dangerous scorpions in Brazil, there are few studies about the effects of its venom, which acts mainly on the central nervous system. Previous studies demonstrated the convulsive ability of this venom.
Luciene Toshie Takeishi Ossanai, Geane Antiques Lourenço, Ivo Lebrun, Ana Leonor Abrahão Nencioni, Valquiria Abrão Coronado Dorce, Andreimar Martins Soares   +5 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

A Explosão Demográfica da Espécie Tityus Serrulatus,(Escorpião Amarelo) na Área Urbana de Araraquara e a Sensível Diminuição da Espécie Tityus Bahiensis, (Escorpião Marrom)

Revista Brasileira Multidisciplinar - ReBraM /Brazilian Multidisciplinay Journal, 2015
O estudo em questão faz parte do projeto de estudo faunístico, e de relação da sociedade com a natureza no município de Araraquara - SP e tem por objetivo traçar o perfil dos acidentes escorpiõnicos em relação à explosão demográfica da espécie Tityus ...
Goberto Luiz Penedo, Marcelo Nivert Schlindwein   +1 more
doaj   +1 more source

Nervous System of Periplaneta americana Cockroach as a Model in Toxinological Studies: A Short Historical and Actual View

Journal of Toxicology, Volume 2012, Issue 1, 2012., 2012
Nervous system of Periplaneta americana cockroach is used in a wide range of pharmacological studies, including electrophysiological techniques. This paper presents its role as a preparation in the development of toxinological studies in the following electrophysiological methods: double‐oil‐gap technique on isolated giant axon, patch‐clamp on DUM ...
Maria Stankiewicz, Marcin Dąbrowski, Maria Elena de Lima, Yonghua Ji   +3 more
wiley   +1 more source

Scorpion envenomation in Brazil: Current scenario and perspectives for containing an increasing health problem.

PLoS Neglected Tropical Diseases, 2023
Opportunistic scorpion species can colonize urban environments, establishing high-density communities that enhance the chances of human accidents.
Clara Guerra-Duarte, Rafael Saavedra-Langer, Alessandra Matavel, Barbara B R Oliveira-Mendes, Carlos Chavez-Olortegui, Ana Luiza Bittencourt Paiva   +5 more
doaj   +1 more source

Scorpion Venom and the Inflammatory Response

Mediators of Inflammation, Volume 2010, Issue 1, 2010., 2010
Scorpion venoms consist of a complex of several toxins that exhibit a wide range of biological properties and actions, as well as chemical compositions, toxicity, and pharmacokinetic and pharmacodynamic characteristics. These venoms are associated with high morbility and mortality, especially among children. Victims of envenoming by a scorpion suffer a
Vera L. Petricevich, Fulvio D′Acquisto
wiley   +1 more source

Second record of Tityus bahiensis (Scorpiones, Buthidae) from Venezuela: epidemiological implications

Journal of Venomous Animals and Toxins including Tropical Diseases, 2008
This work reports the second record of the scorpion Tityus bahiensis Perty from Venezuela. The specimen was found alive in a wardrobe at a hotel resort in Margarita Island, northeastern Venezuela.
L. De Sousa, A. Borges, J. Manzanilla, I. Biondi, E. Avellaneda   +4 more
doaj   +1 more source