Results 21 to 30 of about 2,581 (218)

Ginkgolide B inhibits the neurotoxicity of prions or amyloid-β1-42

open access: yesJournal of Neuroinflammation, 2004
Background Neuronal loss in Alzheimer's or prion diseases is preceded by the accumulation of fibrillar aggregates of toxic proteins (amyloid-β1-42 or the prion protein).
Williams Alun, Salmona Mario, Bate Clive
doaj   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

open access: yes, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D.   +2 more
core   +2 more sources

Transformation of multi-component ginkgolide into ginkgolide B by Coprinus comatus [PDF]

open access: yesBMC Biotechnology, 2015
As the strongest antagonist of the platelet activating factor, ginkgolide B (GB) possesses anti-ischemic, anti-oxidant and anti-convulsant properties, and it is used for the treatment of thrombosis in clinical practice. Till now, GB is usually obtained from extraction of Ginkgo biloba leaves through column chromatography with an extremely low yield and
Ding, HongXue   +4 more
openaire   +2 more sources

Adulteration and Poor Quality of Ginkgo biloba Supplements [PDF]

open access: yes, 2016
Adulteration of Ginkgo products sold as unregistered supplements within the very large market of Ginkgo products (reputedly £650 million annually) through the post-extraction addition of cheaper (e.g.
Booker, A   +4 more
core   +4 more sources

Ginkgolides protect against amyloid-β1–42-mediated synapse damage in vitro

open access: yesMolecular Neurodegeneration, 2008
Background The early stages of Alzheimer's disease (AD) are closely associated with the production of the Aβ1–42 peptide, loss of synapses and gradual cognitive decline.
Williams Alun, Tayebi Mourad, Bate Clive
doaj   +1 more source

A gene cluster in Ginkgo biloba encodes unique multifunctional cytochrome P450s that initiate ginkgolide biosynthesis

open access: yesNature Communications, 2022
Although ginkgo terpenoids have been studied extensively for their pharmaceutical properties, knowledge on their biosynthesis remains limited. Here, the authors identify five multifunctional cytochrome P450s that catalyze the generation of the tert-butyl
Victor Forman   +8 more
doaj   +1 more source

Multi-Response Optimization of Ultrasonic Assisted Enzymatic Extraction Followed by Macroporous Resin Purification for Maximal Recovery of Flavonoids and Ginkgolides from Waste Ginkgo biloba Fallen Leaves

open access: yesMolecules, 2018
In the present study, the process of ultrasonic assisted enzymatic extraction (UAEE), followed by macroporous resin purification, was successfully developed to achieve maximal recovery of flavonoids and ginkgolides from Ginkgo biloba fallen leaves (GBFL).
Guisheng Zhou   +5 more
doaj   +1 more source

Herbal medicines from ginkgo leaf extract in the treatment of mild dementia [PDF]

open access: yesArhiv za farmaciju, 2020
According to current EU monograph of the Committee on Herbal Medicinal Products of European Medicines Agency (EMA/HMPC) for ginkgo leaf, Ginkgonis folium (Ginkgo biloba, Ginkgoaceae), herbal medicines prepared from refined and quantified dry extract of ...
Petrović Silvana, Ušjak Ljuboš
doaj   +1 more source

Conformational variability of the glycine receptor M2 domain in response to activation by different agonists [PDF]

open access: yes, 2007
Models describing the structural changes mediating cys-loop receptor activation generally give little attention to the possibility that different agonists may promote activation via distinct M2 pore-lining domain structural rearrangements.
Akabas   +30 more
core   +3 more sources

Metabolic Profile and Quantification of Terpene Trilactones and Flavonoids in Ginkgo biloba L. Buds Depending on Physiological Stages

open access: yesNutraceuticals, 2023
The phytochemical profiles of extracts from closed, semi-opened and opened leaf buds and the summer leaves of Ginkgo biloba were studied. The extraction and purification of bilobalide and ginkgolides, using andrographolide as an internal standard, were ...
Dominique Laurain-Mattar   +5 more
doaj   +1 more source

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