Results 1 to 10 of about 126 (79)

Assessment of neuropharmacological potential of low molecular weight components extracted from Rhinella schneideri toad poison [PDF]

Journal of Venomous Animals and Toxins Including Tropical Diseases, 2019
Background: Studies on toad poison are relevant since they are considered a good source of toxins that act on different biological systems. Among the molecules found in the toad poison, it can be highlighted the cardiotonic heterosides, which have a ...
Alexandra Cunha, Pietro Ciancaglini, JOSÉ Luiz Liberato   +2 more
exaly   +4 more sources

Deep sequencing analysis of toad Rhinella schneideri skin glands and partial biochemical characterization of its cutaneous secretion [PDF]

Journal of Venomous Animals and Toxins Including Tropical Diseases, 2018
Background Animal poisons and venoms are sources of biomolecules naturally selected. Rhinella schneideri toads are widespread in the whole Brazilian territory and they have poison glands and mucous gland.
Wiezel Gisele Adriano, Romualdo Morandi Filho, Camila Takeno Cologna   +2 more
exaly   +4 more sources

Presynaptic neuromuscular action of a methanolic extract from the venom of Rhinella schneideri toad [PDF]

Journal of Venomous Animals and Toxins Including Tropical Diseases, 2014
BackgroundRhinella schneideri, previously known as Bufo paracnemis, is a common toad in many regions of Brazil. Its venom exerts important cardiovascular effects on humans and other animals.
Sandro Rostelato-Ferreira, Stephen Hyslop, Hyslop Stephen   +2 more
exaly   +4 more sources

The Insecticidal Activity of Rhinella schneideri (Werner, 1894) Paratoid Secretion in Nauphoeta cinerea Cocroaches [PDF]

Toxins, 2020
Rhinella schneideri is a common toad found in South America, whose paratoid toxic secretion has never been explored as an insecticide. In order to evaluate its insecticidal potential, Nauphoeta cinerea cockroaches were used as an experimental model in ...
Allan Leal, Etiely Karnopp, Yuri Correia Barreto, Raquel Soares Oliveira, Maria Eduarda Rosa, Bruna Trindade Borges, Flávia Luana Goulart, Velci Queiróz de Souza, Manuela Merlin Laikowski, Sidnei Moura, Lúcia Vinadé, João Batista Teixeira da Rocha, Cháriston André Dal Belo   +12 more
doaj   +2 more sources

Presynaptic Activity of an Isolated Fraction from Rhinella schneideri Poison [PDF]

Advanced Pharmaceutical Bulletin, 2018
Purpose: Rhinella schneideri is a toad found in many regions of the South America. The poison of the glands has cardiotoxic effect in animals and neuromuscular effects in mice and avian preparation.
Sandro Rostelato-Ferreira, Cháriston André Dal Belo, Pedro Ismael da Silva Junior, Stephen Hyslop, Léa Rodrigues-Simioni, Thomaz Augusto Alves Rocha-e-Silva   +5 more
doaj   +2 more sources

First serine protease inhibitor isolated from Rhinella schneideri poison [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases, 2015
Background Toad secretions are a source of molecules with potential biotechnological application on a wide spectrum of diseases. Toads from theRhinella family have two kinds of poisonous glands, namely granular and mucous glands. Rhinella schneideritoads
Priscila Y T Shibao, Fernando A P Anjolette, Norberto P. Lopes, Eliane C. Arantes   +3 more
doaj   +2 more sources

Sex-related differences in aging rate are associated with sex chromosome system in amphibians. [PDF]

Evolution, 2022
Abstract Sex‐related differences in mortality are widespread in the animal kingdom. Although studies have shown that sex determination systems might drive lifespan evolution, sex chromosome influence on aging rates have not been investigated so far, likely due to an apparent lack of demographic data from clades including both XY (with heterogametic ...
Cayuela H, Lemaître JF, Léna JP, Ronget V, Martínez-Solano I, Muths E, Pilliod DS, Schmidt BR, Sánchez-Montes G, Gutiérrez-Rodríguez J, Pyke G, Grossenbacher K, Lenzi O, Bosch J, Beard KH, Woolbright LL, Lambert BA, Green DM, Jreidini N, Garwood JM, Fisher RN, Matthews K, Dudgeon D, Lau A, Speybroeck J, Homan R, Jehle R, Başkale E, Mori E, Arntzen JW, Joly P, Stiles RM, Lannoo MJ, Maerz JC, Lowe WH, Valenzuela-Sánchez A, Christiansen DG, Angelini C, Thirion JM, Merilä J, Colli GR, Vasconcellos MM, Boas TCV, Arantes ÍDC, Levionnois P, Reinke BA, Vieira C, Marais GAB, Gaillard JM, Miller DAW.   +49 more
europepmc   +2 more sources

Biological characterization of compounds from Rhinella schneideri poison that act on the complement system [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases, 2015
Background The skin secretions of toads of the family Bufonidae contain biogenic amines, alkaloids, steroids (bufotoxins), bufodienolides (bufogenin), peptides and proteins.
Fernando A. P. Anjolette, Flávia P. Leite, Karla C. F. Bordon, Ana Elisa C. S Azzolini, Juliana C. Pereira, Luciana S. Pereira-Crott, Eliane C. Arantes   +6 more
doaj   +2 more sources

Morphological and biochemical characterization of the cutaneous poison glands in toads (Rhinella marina group) from different environments [PDF]

Frontiers in Zoology, 2018
Background Amphibian defence against predators and microorganisms is directly related to cutaneous glands that produce a huge number of different toxins.
Pedro Luiz Mailho-Fontana, Marta Maria Antoniazzi, Juliana Mozer Sciani, Daniel Carvalho Pimenta, Katia Cristina Barbaro, Carlos Jared   +5 more
doaj   +2 more sources

Differences and similarities among parotoid macrogland secretions in South American toads: a preliminary biochemical delineation. [PDF]

ScientificWorldJournal, 2013
Amphibians are known by cutaneous glands, spread over the skin, containing toxins (proteins, peptides, biogenic amines, steroidal bufadienolides, and alkaloids) used as chemical defense against predators and microbial infection. Toads are characterized by the presence of parotoid macroglands.
Sciani JM, Angeli CB, Antoniazzi MM, Jared C, Pimenta DC.   +4 more
europepmc   +2 more sources