Results 41 to 50 of about 7,323 (186)

Hyaluronidase: the spreading factor of Tityus serrulatus venom [PDF]

, 2018
Background: The hyaluronidase enzyme is generally known as a spreading factor in animal venoms. Although its activity has been demonstrated in several organisms, a deeper knowledge about hyaluronidase and the venom spreading process from the bite/sting site until its elimination from the victim's body is still in need.
Oliveira-Mendes, Bárbara Bruna Ribeiro de, Miranda, Sued Eustáquio Mendes, Sales-Medina, Douglas Ferreira, Magalhães, Bárbara de Freitas, Kalapothakis, Yan, Souza, Renan Pedra de, Cardoso, Valbert Nascimento, de Barros, André Luís Branco, Guerra-Duarte, Clara, Kalapothakis, Evanguedes, Horta, Carolina Campolina Rebello   +10 more
openaire   +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

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

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

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

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

Immunomodulatory activity of Tityus serrulatus scorpion venom on human T lymphocytes. [PDF]

J Venom Anim Toxins Incl Trop Dis, 2015
Tityus serrulatus scorpion venom (TsV) contains toxins that act on K(+) and Na(+) channels and account for the venom's toxic effects. TsV can activate murine peritoneal macrophages, but its effects on human lymphocytes have been poorly investigated. Considering that lymphocytes may play an important role in envenomation, we assessed whether TsV affects
Casella-Martins A, Ayres LR, Burin SM, Morais FR, Pereira JC, Faccioli LH, Sampaio SV, Arantes EC, Castro FA, Pereira-Crott LS.   +9 more
europepmc   +7 more sources

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

Tityus serrulatus Lutz & Mello 1922

, 2009
Tityus serrulatus Lutz & Mello, 1922 Tityus serrulatus serrulatus Lutz & Mello, 1922: 25. Holotype Ψ from Belo Horizonte, Minas Gerais, Brazil (lost). Neotype Ψ from Belo Horizonte, Minas Gerais, Brazil (IBSP–1165) (designated by Lourenço & Eickstedt, 1981); Lourenço & Cloudsley-Thompson, 1999: 154 –158; Fet et al, 2000: 260–261; Lourenço, 2001: 21 –25,
De, Claudio Augusto R., Candido, Denise M., Lucas, Sylvia Marlene, Brescovit, Antonio Domingos   +3 more
openaire   +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