Results 11 to 20 of about 5,587 (239)
PLoS ONE, 2018 Diastolic dysfunction is increasingly prevalent in our ageing society and an important contributor to heart failure. The giant protein titin could serve as a therapeutic target, as its elastic properties are a main determinant of cardiac filling in ...
Martin Liss +6 more
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Secondary Compounds in Milkweed Nectar Negatively Impact Thermal Tolerance in Bumble Bees. [PDF]
Ecol EvolThis study shows that exposure to cardenolide toxins in floral nectar impacts heat tolerance in bumble bees at field‐realistic doses. Various honeys, aside from milkweed honey, did not impact heat tolerance in these bees. These data suggest that compounds in their diet may impact resilience of bees to global warming and that milkweed‐specialists may be
Shippee R +4 more
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Duckweeds: Model organisms for research on plant sterols and steroids. [PDF]
Plant Biol (Stuttg)Duckweeds (Lemnaceae), the fastest‐growing angiosperms and promising vegan protein source, offer a powerful model to address key questions in plant physiology. This article highlights their potential for dissecting the biosynthesis and function of phytosterols, sterol conjugates, brassinosteroids, and specialized steroidal metabolites, such as ...
Klein J, Appenroth KJ, Sree KS.
europepmc +2 more sources
Nectar cardenolides and floral volatiles mediate a specialized wasp pollination system. [PDF]
J Exp BiolBurger H +5 more
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Gut-specific cardenolide-resistant sodium pump primed an omnivore to feed on toxic oleander
iScience, 2022 Summary: Apocynaceae plants produce toxic cardenolides to defend against their herbivores. Cardenolides could inhibit the α subunit of Na+⁄K+-ATPase (ATPα), which plays critical roles in biological processes such as muscle contraction, neural function ...
Tianyu Wang, Lina Shi, Ying Zhen
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Development of CPA-Catalyzed β-Selective Reductive Amination of Cardenolides for the Synthesis and Biological Evaluation of Hydrolytically Stable Analogs. [PDF]
ChemistryWe describe a new method to produce hydrolytically stable cardiotonic steroids using a CPA‐controlled diastereoselective reductive amination of cardenolide aglycones. The oleandrin and digitoxigenin analogs exhibited promising activity against various cancer cell lines in the NCI‐60 screen.
Perry N +3 more
europepmc +2 more sources
Ecology and Evolution, 2021 Sequestration, that is, the accumulation of plant toxins into body tissues for defense, was predicted to incur physiological costs and may require resistance traits different from those of non‐sequestering insects.
Prayan Pokharel +2 more
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Molecules, 2022 Cardiac glycosides are a large class of secondary metabolites found in plants. In the genus Asclepias, cardenolides in milkweed plants have an established role in plant–herbivore and predator–prey interactions, based on their ability to inhibit the ...
Paola Rubiano-Buitrago +3 more
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Evolutionary constraints in host shifts: Limited adaptation of Plutella xylostella to cardenolide‐defended Erysimum cheiranthoides [PDF]
Functional Ecology, Volume 40, Issue 2, Page 501-516, February 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Coevolutionary arms races between plants and insects, in which gains of novel plant defences select for counteradaptations in herbivores, are key drivers of biodiversity.
Broti Biswas +5 more
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Data in Brief, 2020 Cardiac glycosides, steroid derivatives extracted from the foxglove plants, have been used for the treatment of heart failure since the 18th century. A method based on liquid chromatography coupled with high-resolution tandem mass spectrometry (LC/MS2 ...
Baradwaj Gopal Ravi +3 more
doaj +1 more source