Results 41 to 50 of about 4,729 (242)

Host Plant Species Mediates Impact of Neonicotinoid Exposure to Monarch Butterflies

open access: yesInsects, 2021
Neonicotinoids are the most widely used insecticides in North America. Numerous studies document the negative effects of neonicotinoids on bees, and it remains crucial to demonstrate if neonicotinoids affect other non-target insects, such as butterflies.
Cody Prouty   +4 more
doaj   +1 more source

Biosynthetic approach to combine the first steps of cardenolide formation in Saccharomyces cerevisiae

open access: yesMicrobiologyOpen, 2019
A yeast expression plasmid was constructed containing a cardenolide biosynthetic module, referred to as CARD II, using the AssemblX toolkit, which enables the assembly of large DNA constructs.
Christoph Rieck   +7 more
doaj   +1 more source

Behavioural resistance against a protozoan parasite in the monarch butterfly [PDF]

open access: yes, 2011
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/89483/1/j.1365-2656.2011.01901.x ...
Chiang, Allen   +9 more
core   +1 more source

Notes on Shifting Distribution Patterns and Survival of Immature \u3ci\u3eDanaus Plexippus\u3c/i\u3e (Lepidoptera: Danaidae) on the Food Plant \u3ci\u3eAsclepias Syriaca\u3c/i\u3e [PDF]

open access: yes, 2017
Abundance and distribution of immature stages of the monarch butterfly, Danaus plexippus, on the food plant Asclepias syriaca were examined at a site in southeastern Wisconsin over one growing season.
Borkin, Susan Sullivan
core   +2 more sources

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

Calotropis poisoning with severe cardiac toxicity A case report

open access: yesJournal of Family Medicine and Primary Care, 2020
Calotropis is a widely prevalent plant in the Indian Subcontinent. The extract and various parts of the plant are used by traditional healers for treating miscellaneous diseases.
Ramya Iyadurai   +3 more
doaj   +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

The alpha-synuclein 5'untranslated region targeted translation blockers: anti-alpha synuclein efficacy of cardiac glycosides and Posiphen [PDF]

open access: yes, 2011
Increased brain α-synuclein (SNCA) protein expression resulting from gene duplication and triplication can cause a familial form of Parkinson's disease (PD).
Bandyopadhyay, Sanghamitra   +9 more
core   +1 more source

Na,K-ATPase mediated and cardiotonic induced signaling in health and disease

open access: yesFrontiers in Physiology
In the late 1950’s, Na,K-ATPase (NKA) was discovered as the active transport system that establishes and maintains the transmembrane Na+ and K+ gradients necessary for cell survival and function. Almost 70 years later, a novel unexpected function for NKA
Jordan Trant   +3 more
doaj   +1 more source

A New Cytotoxic 19-Nor-cardenolide from the Latex of Antiaris toxicaria

open access: yesMolecules, 2009
A new nor-cardenolide, named toxicarioside H (1), was isolated from the latex of Antiaris toxicaria (Pers.) Lesch (Moraceae). Its structure was elucidated on the basis of HRFAB-MS and spectroscopic techniques (IR, UV, 1D and 2D NMR).
Wen-Li Mei   +5 more
doaj   +1 more source

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