Results 61 to 70 of about 7,680 (212)

Immunomodulatory Effects of the Tityus serrulatus Venom on Murine Macrophage Functions in Vitro

Mediators of Inflammation, Volume 2005, Issue 1, Page 39-49, 2005., 2005
Tityus serrulatus scorpion venom (TSV) consists of a very complex mixture of molecules and demonstrates significant immunomodulatory activities capable of stimulating immune functions in vivo. The purpose of this study was to compare the crude TSV with fractionated toxins extracted from this venom in order to determine which toxin(s) presented ...
Vera L. Petricevich, Ivo Lebrun
wiley   +1 more source

Scorpions from the primeval subgenus Archaeotityus produce putative homologs of Tityus serrulatus toxins active on voltage-gated sodium channels

Journal of Venomous Animals and Toxins including Tropical Diseases, 2012
It has been proposed that the subgenus Archaeotityus comprises the most ancient species group within the medically important scorpion genus Tityus. cDNA encoding sodium-channel active toxins from the type species of this subgenus, Tityus clathratus ...
A Borges, MJ Jowers, S Bónoli, L De Sousa   +3 more
doaj   +1 more source

Effect of Tityus serrulatus venom on cytokine production and the activity of murine macrophages

Mediators of Inflammation, Volume 11, Issue 1, Page 23-31, 2002., 2002
The purpose of this study was to investigate the effects of Tityus serrulatus venom (TSV) on murine peritoneal macrophages evaluated in terms of activation. The effects of crude TSV were analysed by detection of cytokines, oxygen intermediate metabolites (H2O2) and nitric oxide (NO) in supernatants of peritoneal macrophages.
Vera L. Petricevich
wiley   +1 more source

Genotoxicity evaluation induced by Tityus serrulatus scorpion venom in mice

Toxicon, 2017
Tityus serrulatus is the scorpion associated with the most severe cases of scorpion envenoming in Brazil. However, there are no studies reporting the genotoxic effects of this venom in natural or experimental envenomations. It is well known that DNA-damage responses are providing opportunities for improving disease detection and management.
Nathalia Coral Galvani, Thais Ceresér Vilela, Angelino Chitoma Domingos, Mírian Ívens Fagundes, Luiza Macarini Bosa, Indiani Conti Della Vechia, Rahisa Scussel, Márcia Pereira, Bethina Trevisol Steiner, Adriani Paganini Damiani, Carlos Chávez-Olórtegui, Vanessa Moraes De Andrade, Ricardo Andrez Machado de Ávila   +12 more
openaire   +2 more sources

Effect of scorpion toxin on the enterochromaffin-like cells in normal and Trypanosoma cruzi-infected rats: a morphological study

Revista do Instituto de Medicina Tropical de São Paulo, 1989
Intravenous injection of scorpion toxin (Tityus serrulatus) in normal and Trypanosoma cruzi infected rats did not cause ultrastructural morphologic changes on enterochromaffin-like (ECL) cells of the stomach, although it induced a significant increase of
N. H. Toppa, V. H. R. Leite, A. J. A. Barbosa, E. Chiari, H. M. S. Gonzaga, L. Freire-Maia, J. R. Cunha-Melo   +6 more
doaj   +1 more source

Inter- and intrapopulational genetic variability of Tityus serrulatus (Scorpiones, Buthidae)

Acta Tropica, 2009
In Brazil, there are near 20 genera and almost 120 species of scorpions of which 95% reproduce sexually. Parthenogenetic reproduction, however, may also take place. To gain insight into useful molecular markers in parthenogenetic scorpion species, we studied DNA polymorphism using two molecular approaches: simple sequence repeat anchored polymerase ...
Ronaldo G Carvalho, Scholte, Roberta Lima, Caldeira, Mariana Crivellari Machado, Simões, William H, Stutz, Larissa Lopes, Silva, Omar dos Santos, Carvalho, Guilherme, Oliveira   +6 more
openaire   +2 more sources

Contribuição para o conhecimento da intoxicação pelo veneno dos "escorpiões"

Memorias do Instituto Oswaldo Cruz, 1928
Nous avons travaillé à Bello Horizonte, Etat de Minas, avec le venin de 4 espèces de Scorpions: Tityus bahiensis (C. L. KOCK, 1836). Tityus serrulatus (LUTZ-MELLO, 1922). Tityus dorsomaculatus (LUTZ – MELLO, 1922).
Octavio de Magalhães
doaj   +1 more source

Acidente por Tityus serrulatus e suas implicações epidemiológicas no Rio Grande do Sul

Revista de Saúde Pública, 2002
Relata-se o primeiro caso de acidente por escorpião Tityus serrulatus ocorrido em Março de 2001, em Porto Alegre, Rio Grande do Sul, Brasil. Um paciente masculino de 21 anos, ao manipular produtos hortifrutigranjeiros provenientes de outros estados do ...
Torres João Batista, Marques Maria da Graça Boucinha, Martini Rodrigo Klafke, Borges Cássio Vinícius Aguiar   +3 more
doaj  

Central effects of Tityus serrulatus and Tityus bahiensis scorpion venoms after intraperitoneal injection in rats

Neuroscience Letters, 2009
A great number of studies on scorpion venoms associate their effects to the autonomic nervous system, and few data are available about their action on the central nervous system (CNS). The aim of this work was to evaluate some central effects after intraperitoneal injection of Tityus serrulatus or T. bahiensis scorpion venoms.
Ana Leonor A, Nencioni, Geane Antiques, Lourenço, Ivo, Lebrun, Jorge Camilo, Florio, Valquiria A C, Dorce   +4 more
openaire   +2 more sources

Litter size, effects of maternal body size, and date of birth in South American scorpions (Arachnida: Scorpiones)

Zoologia (Curitiba), 2009
We present new data on litter size and date of birth (month) for 21 South American scorpions species. We provide data for one katoikogenic species, the liochelid Opisthacanthus cayaporum Vellard, 1932 (offspring = 3; birth month: Jan); and for several ...
Sabrina Outeda-Jorge, Thayná Mello, Ricardo Pinto-da-Rocha   +2 more
doaj   +1 more source