Results 21 to 30 of about 5,587 (239)

New Cardenolides from Biotransformation of Gitoxigenin by the Endophytic Fungus Alternaria eureka 1E1BL1: Characterization and Cytotoxic Activities

open access: yesMolecules, 2021
Microbial biotransformation is an important tool in drug discovery and for metabolism studies. To expand our bioactive natural product library via modification and to identify possible mammalian metabolites, a cytotoxic cardenolide (gitoxigenin) was ...
Erdal Bedir   +5 more
doaj   +1 more source

Defence mitigation by predators of chemically defended prey integrated over the predation sequence and across biological levels with a focus on cardiotonic steroids

open access: yesRoyal Society Open Science, 2022
Predator–prey interactions have long served as models for the investigation of adaptation and fitness in natural environments. Anti-predator defences such as mimicry and camouflage provide some of the best examples of evolution.
Shabnam Mohammadi   +3 more
doaj   +1 more source

Characterization and Chromatographic Fingerprint Analysis of Traditional Wallflower Oil [PDF]

open access: yesResearch Journal of Pharmacognosy, 2021
Background and objective: Wallflower oil is made from the flowers of Erysimum cheiri (L.) Crantz which is a herb rich in cardenolide compounds. Wallflower oil was traditionally indicated for analgesic, anti-inflammatory, hair tonic, and wound healing ...
Ghazaleh Mosleh   +2 more
doaj   +1 more source

Quo vadis Cardiac Glycoside Research?

open access: yesToxins, 2021
Cardiac glycosides (CGs), toxins well-known for numerous human and cattle poisoning, are natural compounds, the biosynthesis of which occurs in various plants and animals as a self-protective mechanism to prevent grazing and predation.
Jiří Bejček   +3 more
doaj   +1 more source

LC-MS-based metabolite profiling of aqueous extract of Pergularia tomentosa L. and its anti-hyperglycemic effect [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2022
Objective(s): In this study, to find scientific evidence for the traditional use of Pergularia tomentosa as an anti-diabetic remedy, the effects of its aqueous extract on streptozotocin-induced diabetes mellitus in rats were evaluated.Materials and ...
Seyed Hamzeh Hosseini   +5 more
doaj   +1 more source

Progestogens and androgens influence root morphology of angiosperms in a brassinosteroid-independent manner. [PDF]

open access: yesPlant J
Significance Statement Plants produce progesterone and androgens, which alter root morphology in A. thaliana and 60% of tested angiosperms. Brassinosteroids seem uninvolved. Understanding the mechanism is like navigating an unknown city—exemplarily Dittelbrunn (a small village in Bavaria)—where the expected shortcut (interaction with brassinosteroids ...
Körber KL   +11 more
europepmc   +2 more sources

Functional Profiles of Phyllosphere and Rhizosphere Metagenomes Differ Across Milkweed Species [PDF]

open access: yesEnviron Microbiol Rep
We characterised milkweed microbiomes using a metagenomics approach to investigate the functional potential of endophytic phyllosphere and rhizosphere communities. We found evidence that the composition of potential PSM genes varied across milkweeds in spp. specific responses, for both phyllospheres and rhizospheres, and in response to monarch feeding.
Hansen T, Enders L.
europepmc   +2 more sources

Molecular Modes of Action of an Aqueous Nerium oleander Extract in Cancer Cells In Vitro and In Vivo

open access: yesMolecules, 2023
Cancer drug resistance remains a major obstacle in clinical oncology. As most anticancer drugs are of natural origin, we investigated the anticancer potential of a standardized cold-water leaf extract from Nerium oleander L., termed Breastin.
Luay J. Rashan   +9 more
doaj   +1 more source

Consequences of toxic secondary compounds in nectar for mutualist bees and antagonist butterflies [PDF]

open access: yes, 2016
Attraction of mutualists and defense against antagonists are critical challenges for most organisms and can be especially acute for plants with pollinating and non?pollinating flower visitors.
Agrawal, Anurag A., Jones, Patricia L.
core   +2 more sources

Antiproliferative activity of standardized herbal phytopreparation from Asclepias subulata [version 2; peer review: 2 approved, 1 not approved]

open access: yesF1000Research, 2022
Background: Several studies have shown that active compounds of Asclepias subulata (cardenolides) have antiproliferative effect on human cancer cells. Cardenolides isolated from A.
Wagner Vilegas   +7 more
doaj   +1 more source

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