Beta Toxin
Mostrando 1-12 de 465 artigos, teses e dissertações.
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1. Functional and biological insights of rCollinein-1, a recombinant serine protease from Crotalus durissus collilineatus
ABSTRACT Background: The prevalent class of snake venom serine proteases (SVSP) in Viperidae venoms is the thrombin-like enzymes, which, similarly to human thrombin, convert fibrinogen into insoluble fibrin monomers. However, thrombin-like serine proteases differ from thrombin by being unable to activate factor XIII, thus leading to the formation of loose c
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 08/04/2019
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2. Overactive bladder – 18 years – part I
ABSTRACT Abstract: Overactive bladder syndrome is one of the lower urinary tract dysfunctions with the highest number of scientific publications over the past two decades. This shows the growing interest in better understanding this syndrome, which gathers symptoms of urinary urgency and increased daytime and nighttime voiding frequency, with or without urin
Int. braz j urol.. Publicado em: 2016-04
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3. Overactive bladder – 18 years – Part II
ABSTRACT Traditionally, the treatment of overactive bladder syndrome has been based on the use of oral medications with the purpose of reestablishing the detrusor stability. The recent better understanding of the urothelial physiology fostered conceptual changes, and the oral anticholinergics – pillars of the overactive bladder pharmacotherapy – started
Int. braz j urol.. Publicado em: 2016-04
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4. Molecular detection and characterization of cpb2 gene in Clostridium perfringens isolates from healthy and diseased chickens
Clostridium perfringens is an important pathogen in both human and veterinary medicine. Necrotic enteritis (NE) is the most clinically dramatic bacterial enteric disease of poultry induced by C. perfringens. The pathogenicity of this bacterium is associated with the production of extracellular toxins produced by some of its strains, such as beta2 toxin. The
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2011
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5. Papel dos canais K+ATP na resposta eletrofisiológica ao FSH e ao isoproterenol em células de Sertoli
Follicle-stimulating hormone (FSH) produces a dual effect on the membrane potential of Sertoli cells, with an initial rapid phase, which comprises a hyperpolarization for a period of seconds and a depolarization phase, wich occurs more slowly, within minutes. The depolarization phase involves calcium entry stimulated by FSH. Isoproterenol, an agonist of ¿-a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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6. Purificação e caracterização de um citotoxina produzida por amostras de Enterobacter cloacae isoladas de pacientes com infecção hospitalar / Purification and characterization of a cytotoxin produced by Enterobacter cloacae strains isolated from patients with hospital infection
The bacterium Enterobacter cloacae has been recognized as an important infectious agent in hospitaIs, sometimes leading patients to obit. Studying its virulence properties in our laboratory, 18% of the strains were characterized as cytotoxic against Vero cells. The cytotoxin was purified from the most cytotoxic strain (118.9) by means ionic exchange and mole
Publicado em: 2008
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7. Second record of Tityus bahiensis (Scorpiones, Buthidae) from Venezuela: epidemiological implications
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. Morphological characterization allowed its assignment to the Tityus bahiensis population inhabiting the southernmost area of the species' geographic range, e.g. th
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2008
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8. Ureases de Canavalia ensiformis e peptídeo inseticida derivado
Urease, uma enzima encontrada em diversas espécies de plantas, catalisa a hidrólise de uréia, formando amônia e dióxido de carbono. Esta enzima é encontrada também em bactérias, fungos e alguns invertebrados e apresenta três domínios: alfa, beta e gama. Em Canavalia ensiformis, foram descritas mais de uma isoforma de urease: a urease clássica JBU
Publicado em: 2008
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9. Aspectos estruturais da toxina da soja (SBTX) e sua participaÃÃo na defesa vegetal / Structural aspects of the toxin of the soy (SBTX) and its participation in the vegetal defense
Este trabalho descreve a caracterizaÃÃo estrutural da toxina de soja (SBTX), isolada de sementes por Siebra (2004), e discute o envolvimento desta proteÃna na defesa da planta contra patÃgenos. A SBTX foi purificada por precipitaÃÃo do extrato total com sulfato de amÃnio (20-55%) e cromatografias de troca iÃnica e filtraÃÃo em gel. Por PAGE-SDS, SB
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2007
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10. Isolamento e tipifícação genotípica de Clostridium Perfringens em frangos de corte.
Clostridium perfringens is an anaerobic Gram-positive bacterium which causes gaseous gangrene and enterotoxaemias in humans and domestic animals besides being the primary cause of necrotic enteritis in poultry. Clostridium perfringens strains were isolated 171/250 (68.4%) from the intestinal content of broiler chickens sampled in a slaughterhouse in Pará de
Publicado em: 2007
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11. Produção e purificação da toxina beta de Clostridium perfringens tipo C
Empregaram-se os métodos cromatográficos de afinidade metálica e de imunoafinidade para purificação da toxina beta em sobrenadante de cultivo de Clostridium perfringens tipo C. Observaram-se, na eletroforese das primeiras frações eluidas nos dois métodos de purificação, uma banda de peso molecular aproximado de 38kDa, característica da forma monom
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2006-04
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12. Crotacetin, a novel snake venom C-type lectin, is homolog of convulxin
Snake venom (sv) C-type lectins encompass a group of hemorrhagic toxins, which are able to interfere with hemostasis. They share significant similarity in their primary structures with C-type lectins of other animals, and also present a conserved carbohydrate recognition domain (CRD). A very well studied sv C-type lectin is the heterodimeric toxin, convulxin
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2005-12