Results 41 to 50 of about 5,587 (239)

The function and evolutionary significance of a triplicated Na,K-ATPase gene in a toxin-specialized insect

open access: yesBMC Evolutionary Biology, 2017
Background The Na,K-ATPase is a vital animal cell-membrane protein that maintains the cell’s resting potential, among other functions. Cardenolides, a group of potent plant toxins, bind to and inhibit this pump.
Jennifer N. Lohr   +4 more
doaj   +1 more source

Calotropin and corotoxigenin 3-O-glucopyranoside from the desert milkweed Asclepias subulata inhibit the Na+/K+-ATPase activity [PDF]

open access: yesPeerJ, 2022
Na+/K+-ATPase is an essential transmembrane enzyme found in all mammalian cells with critical functions for cell ion homeostasis. The inhibition of this enzyme by several cardiotonic steroids (CTS) has been associated with the cytotoxic effect on cancer ...
Salvador E. Meneses-Sagrero   +6 more
doaj   +2 more sources

Molluscicidal Activity of Methomyl and Cardenolide Extracts from <em>Calotropis procera</em> and <em>Adenium</em> <em>arabicum</em> Against the Land Snail <em>Monacha cantiana</em>

open access: yesMolecules, 2012
In this work, we have evaluated the molluscicidal activity of two cardenolide extracts from <em>Adenium arabicum</em> Balf f. [the benzene (B) and methanol (M) extracts], one cardenolide extract from <em>Calotropis procera</em> ...
Alaa Bayoumi   +3 more
doaj   +1 more source

Mycorrhizal abundance affects the expression of plant resistance traits and herbivore performance [PDF]

open access: yes, 2013
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98805/1/jec12111 ...
Heijden, Marcel   +2 more
core   +1 more source

ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]

open access: yes, 1987
The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W.   +7 more
core   +1 more source

Cardiac glycosides isolated from the Indian-snuff, Maquira sclerophylla Ducke

open access: yesMemorias do Instituto Oswaldo Cruz, 1991
The hydroalcoholic extract of the powdered bark of the Indian-snuff Maquira sclerophylla Ducke was purified by column chromatography in silica-gel and the major cardenolide isolated from preparative TLC was identified by 1H-NMR, 1 2 C-NMR and IR analyses.
João Ernesto de Carvalho   +2 more
doaj   +1 more source

Comparative phytochemical and in vitro antimicrobial activities of the leaf extracts of two medicinal plants growing in North-East, Nigeria [PDF]

open access: yes, 2018
Introduction: The use of plants as medicine is as old as chemistry and common to all societies including the African, notably some parts of Northern Nigeria.
Awwal Tijjani, Muhammad.   +3 more
core   +2 more sources

Cardiac Glycosides in Human Physiology and Disease: Update for Entomologists

open access: yesInsects, 2019
Cardiac glycosides, cardenolides and bufadienolides, are elaborated by several plant or animal species to prevent grazing or predation. Entomologists have characterized several insect species that have evolved the ability to sequester these glycosides in
Rif S. El-Mallakh   +2 more
doaj   +1 more source

A hydroalcoholic extract from the leaves of Nerium oleander inhibits glycolysis and induces selective killing of lung cancer cells [PDF]

open access: yes, 2013
Recent evidence suggests that cardiac glycosides might be used for the treatment of cancer. The ornamental shrub Nerium oleander has been used in traditional medicine for treating several disorders including cancer, and extracts from the leaves of this ...
Burgos Morón, Estefanía   +4 more
core   +2 more sources

Phytochemical, nutraceutical and antioxidant studies of the aerial parts of Daucus carota L. (Apiaceae) [PDF]

open access: yes, 2018
Introduction: Carrot is a rich source of anthocyanins, carotenoids, vitamins A, B and C. The aerial parts are used as livestock feed in some parts of Northern Nigeria with little or no scientific evidence of its nutritional potential.
Abubakar, Ahmed.   +4 more
core   +2 more sources

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