Results 11 to 20 of about 102,713 (346)

Bufadienolides from the Skin Secretions of the Neotropical Toad Rhinella alata (Anura: Bufonidae): Antiprotozoal Activity against Trypanosoma cruzi

open access: yesMolecules, 2021
Toads in the family Bufonidae contain bufadienolides in their venom, which are characterized by their chemical diversity and high pharmacological potential.
Candelario Rodriguez   +6 more
doaj   +1 more source

Assessment of Polycyclic Aromatic Hydrocarbon Contamination of Breeding Pools Utilized by the Puerto Rican Crested Toad, Peltophryne lemur. [PDF]

open access: yes, 2012
Habitat preservation and management may play an important role in the conservation of the Puerto Rican crested toad, Peltophryne lemur, due to this species' small geographic range and declining native wild population. Bioavailable water concentrations of
De Voe, Ryan   +3 more
core   +3 more sources

Ultrafast all-optically controlled 2×2 crossbar switch [PDF]

open access: yes, 1996
All-optical packet switching using all-optical routing control, where both ultrafast address recognition and routing of photonic packets were all optically performed on a header with 4 picosecond bit period, was demonstrated.
Glesk, I., Il Kang, K., Prucnal, P. R.
core   +1 more source

Participation of nitric oxide in the nucleus isthmi in CO2-drive to breathing in toads

open access: yesBrazilian Journal of Medical and Biological Research, 1999
The nucleus isthmi (NI) is a mesencephalic structure of the amphibian brain. It has been reported that NI plays an important role in integration of CO2 chemoreceptor information and glutamate is probably involved in this function. However, very little is
L.H. Gargaglioni, L.G.S. Branco
doaj   +1 more source

Antimicrobial activity of skin secretions isolated from Indian toad, Bufo melanostictus Schneider 1799 [PDF]

open access: yes, 2007
Amphibians like toads have been known to secrete antimicrobial secretions outside their body into their environments, through skin pores and parotid glands.
Abhishek Dinkarnath Garg   +3 more
core   +2 more sources

First record of predation on Rhinella diptycha (Anura, Bufonidae) by Caiman latirostris (Crocodylia, Alligatoridae)

open access: yesActualidades Biológicas, 2020
Caimans of the species Caiman latirostris, which are widely distributed in South America, are opportunistic predators. They show ontogenetic variation in diet, with young individuals initially feeding on invertebrates and then gradually adding ...
Rodney Murillo Peixoto-Couto   +2 more
doaj   +1 more source

Analgesic Effects of Toad Cake and Toad-cake-containing Herbal Drugs

open access: yesJournal of Pharmacopuncture, 2014
Objectives: This study was conducted to clarify the analgesic effect of toad cake and toad-cake-containing herbal drugs. Methods: We counted the writhing response of mice after the intraperitoneal administration of acetic acid as a nociceptive pain ...
Inoue Eiji   +4 more
doaj   +1 more source

Effectiveness of Road Mitigation for Common Toads (Bufo bufo) in the Netherlands

open access: yesFrontiers in Ecology and Evolution, 2019
Roads and traffic may have major impacts on amphibian populations, primarily as a result of amphibian road mortality. A variety of measures have been developed to prevent road mortality of amphibians, such as the construction of fences to keep the ...
Fabrice G. W. A. Ottburg   +1 more
doaj   +1 more source

Transcriptomic and gene-family dynamic analyses reveal gene expression pattern and evolution in toxin-producing tissues of Asiatic toad (Bufo gargarizans)

open access: yesFrontiers in Ecology and Evolution, 2022
Comprising a major clade of Anura, toads produce and secrete numerous toxins from both the parotoid glands behind their eyes and their dorsal skin. These toxins, made of various proteins and compounds, possess pharmacological potential to be repurposed ...
Yunyun Lv   +4 more
doaj   +1 more source

Identification of Protein Quality Markers in Toad Venom from Bufo gargarizans

open access: yesMolecules, 2023
Toad venom is a traditional Chinese medicine with high medicinal value. The existing quality evaluation standards of toad venom have obvious limitations because of the lack of research on proteins. Thus, it is necessary to screen suitable quality markers
Meiyun Yang   +9 more
doaj   +1 more source

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