Results 31 to 40 of about 176 (108)

Marinobufagenin Inhibits Neutrophil Migration and Proinflammatory Cytokines

open access: yesJournal of Immunology Research, Volume 2019, Issue 1, 2019., 2019
Cardiotonic steroids, such as ouabain and digoxin, are known to bind to Na+/K+‐ATPase and to promote several biological activities, including anti‐inflammatory activity. However, there are still no reports in the literature about inflammation and marinobufagenin, a cardiotonic steroid from the bufadienolide family endogenously found in mammals ...
Deyse C. M. Carvalho   +8 more
wiley   +1 more source

Rhinella schneideri

open access: yes, 2013
Published as part of Oliveira, Marianna Isabella Rosa Rodrigues De, Weber, Luiz Norberto & Napoli, Marcelo Felgueiras, 2013, Internal oral morphology in larvae of the genus Rhinella Fitzinger, 1826 (Amphibia, Anura, Bufonidae), pp.
Oliveira, Marianna Isabella Rosa Rodrigues De   +2 more
openaire   +2 more sources

Consequences of agroindustrial sugarcane production to freshwater biodiversity

open access: yesGCB Bioenergy, Volume 8, Issue 3, Page 644-657, May 2016., 2016
Abstract The environmental benefits of a broad‐scale adoption of biofuels are critically contingent on what current land uses will be converted for feedstock expansion and how converted land will be managed. We assessed the consequences of land use and land management for the agroindustrial production of sugarcane to the physical, chemical, and ...
Luis Schiesari, Décio T. Corrêa
wiley   +1 more source

Toxicity Effects of Toad (Rhinella jimi Stevaux, 2002) Venom in Chicken (Gallus gallus domesticus)

open access: yesThe Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
This study aimed to evaluate the pathological changes that occur after administering different doses of R. jimi (Stevaux, 2002) parotoid glands secretion to Gallus gallus domesticus chicks. Twenty‐three animals were used in this study and were divided into 5 groups that received a toad venom dose of 0, 3.0 mg/kg, 6.0 mg/kg, 10.0 mg/kg, and 25.0 mg/kg ...
Ivana Cristina Nunes Gadelha   +5 more
wiley   +1 more source

Presynaptic effect of a methanolic extract of toad (Rhinella schneideri) poison in avian neuromuscular preparation. [PDF]

open access: yesJ Venom Res, 2011
The neurotoxicity of a methanolic extract of toad (Rhinella schneideri) poison was examined in chick biventer cervicis preparations. The methanolic extract (1, 3, 10 and 30µg/ml) caused concentration-dependent blockade at the three highest concentrations (time for 50% blockade, mean±SEM: 84±10, 51±3 and 12±0.8min for 3, 10 and 30µg/ml, respectively; n ...
Rostelato-Ferreira S   +4 more
europepmc   +2 more sources

Influence of density and predators on metamorphic size in Rhinella schneideri tadpoles raised in mesocosm conditions [PDF]

open access: yesBiologia, 2014
Amphibians exhibit extreme plasticity in the timing of metamorphosis, and several species respond to water availability, accelerating metamorphosis when their ponds dry. We analyzed the plasticity of the developmental response to water volume in Rhinella schneideri tadpoles. We raised tadpoles in mesocosm. Covariation between body size at metamorphosis
Kehr, Arturo Ignacio   +1 more
openaire   +2 more sources

When Raptors Are Away, Opossums Will Play: Woolly Opossums as Carrion Feeders in Harpy Eagle Nests

open access: yesBiotropica, Volume 57, Issue 6, November 2025.
Scavenging by New World marsupials is rarely documented. We recorded woolly opossums (Caluromys lanatus) scavenging prey remains from a Harpy eagle’s nest in central Brazil. The low overlap in activity periods between the two species may facilitate the behavior observed here.
João Pedro Fernandes Machado   +3 more
wiley   +1 more source

Climate‐Mediated Hybridisation and the Future of Andean Forests

open access: yesJournal of Biogeography, Volume 52, Issue 6, June 2025.
ABSTRACT The tropical Andes face unprecedented warming and shifting precipitation patterns due to climate change and land‐use alteration, challenging the future of Andean forests. During the Quaternary, many Andean trees responded to climate change through upslope migrations but, while there is evidence of such ongoing migrations in many species, they ...
Ellen J. Quinlan   +2 more
wiley   +1 more source

AVALIATION OF VENTILATORY PATTERN IN THE TOAD RHINELLA SCHNEIDERI (ANURA: BUFONIDAE)

open access: yesNucleus Animalium, 2010
Os anfíbios ventilam seus pulmões por meio de bombeamento bucal, mecanismo que foi primeiramente descrito 1969 como um modelo para a respiração de anuros. Como os anfíbios não possuem alvéolos em seus pulmões, foi calculado para o sapo Rhinella schneideri a ventilação equivalente do pulmão por meio da equação VEFF = (VLCO2•RT)/PLCO2.
openaire   +2 more sources

Metacercariae of Renifer heterocoelium (Trematoda: Reniferidae) in tadpoles of Rhinella schneideri (Anura: Bufonidae) in Brazil Metacercarias de Renifer heterocoelium (Trematoda: Reniferidae) en renacuajos de Rhinella schneideri (Anura: Bufonidae) en Brasil

open access: yesRevista Mexicana de Biodiversidad, 2012
Renifer heterocoelium is a parasite of the oral cavity of Neotropical snakes for which larval stages and the life cycle are still unknown. During studies of parasites of Rhinella schneideri, tadpoles collected in a lake from the municipality of Santa ...
Hudson Alves Pinto, Alan Lane de Melo
doaj  

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