Results 51 to 60 of about 2,339 (195)

New Bufadienolides Isolated from the Roots of Kalanchoe daigremontiana (Crassulaceae)

open access: yesMolecules, 2016
An aqueous extract from the roots of Kalanchoe daigremontiana turned out to be a rich source of bufadienolides. The existing literature data relate mainly to the aerial parts of Kalanchoe but there is no information about the metabolic profile of the ...
Barbara Moniuszko-Szajwaj   +3 more
doaj   +1 more source

Evaluating the cancer therapeutic potential of cardiac glycosides [PDF]

open access: yes, 2014
Cardiac glycosides, also known as cardiotonic steroids, are a group of natural products that share a steroid-like structure with an unsaturated lactone ring and the ability to induce cardiotonic effects mediated by a selective inhibition of the Na(+)/K(+)
Burgos Morón, Estefanía   +5 more
core   +3 more sources

Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens

open access: yesAntibiotics, 2020
Species of the family Bufonidae, better known as true toads, are widespread and produce bioactive substances in the secretions obtained from specialized skin macroglands.
Candelario Rodriguez   +4 more
doaj   +1 more source

Predation on invasive cane toads (Rhinella marina) by native Australian rodents [PDF]

open access: yes, 2015
© 2014, Springer-Verlag Berlin Heidelberg. The success of an invasive species can be reduced by biotic resistance from the native fauna. For example, an invader that is eaten by native predators is less likely to thrive than one that is invulnerable. The
Cabrera-Guzmán, E   +4 more
core   +1 more source

Integrating mass spectrometry and systems biology for the modernization of natural medicines: From deciphering chemical complexity to holistic efficacy assessment

open access: yesVIEW, EarlyView.
This review explores how mass spectrometry is transforming research in natural medicines, with Traditional Chinese medicine (TCM) as a primary exemplar. It details the application of advanced mass spectrometry in chemical analysis, the development of comprehensive quality control methods, and systematic research on the targeted mechanisms of single ...
Yudian Xu   +7 more
wiley   +1 more source

Chansu inhibits the expression of cortactin in colon cancer cell lines in vitro and in vivo [PDF]

open access: yes, 2015
Background: Chansu is a transitional Chinese medicine that has been used for centuries as therapy for inflammation, anaesthesia and arrhythmia in China and other Asian countries. Recently, it has also been used for anti-cancer purposes.
Cao, Siyu   +6 more
core   +1 more source

Ouabain‐induced hypertension in rats: Mechanisms, variability and translational implications

open access: yesExperimental Physiology, Volume 111, Issue 3, Page 653-673, 1 March 2026.
Abstract Ouabain‐induced hypertension is a multifactorial and condition‐dependent phenomenon involving coordinated actions across vascular, renal and central nervous system pathways. At the vascular level, ouabain inhibits Na⁺/K⁺‐ATPase, particularly the α2‐isoform, leading to elevated intracellular Ca2⁺, enhanced vasoconstriction and structural ...
Priscilla Rodrigues O. Feijó   +1 more
wiley   +1 more source

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

open access: yesJournal 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 ...
Mateus Amaral Baldo   +8 more
doaj   +1 more source

Chemical Constituents of Wild Onion Urginea Indica Kunth Liliaceae [PDF]

open access: yes, 2013
Wild Onion Urginea indica provide health promoting phytochemicals, as well as nutrients. Onions are bitter to taste, they contains plenty of raphides in bulbs which acts as defensive mechanism.
Shiva Kameshwari, M.N.
core  

Behavioural responses of reptile predators to invasive cane toads in tropical Australia [PDF]

open access: yes, 2013
The ecological impact of an invasive species can depend on the behavioural responses of native fauna to the invader. For example, the greatest risk posed by invasive cane toads (Rhinella marinaBufonidae) in tropical Australia is lethal poisoning of ...
Bedford, GS   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy