Results 1 to 10 of about 26,355 (196)

Lignans from the leaves of Mallotus paxii

open access: yesGuangxi Zhiwu
Mallotus paxii is a Euphorbiaceae plant belonging to the genus Mallotus Lour. This genus mainly distributes in tropical and subtropical Asia, and there are about 140 species in the world.
HOU Ping   +6 more
doaj   +2 more sources

Taming the radical cation intermediate enabled one-step access to structurally diverse lignans

open access: yesNature Communications, 2022
Lignans, in spite of their structural diversity, are all biosynthetically derived from coniferyl alcohol. Here, the authors describe a divergent and stereoselective chemical synthesis of three types of lignans from biomass-derived monolignols, exploiting
Jia-Chen Xiang   +3 more
doaj   +1 more source

The Cytochrome P450-Mediated Metabolism Alternation of Four Effective Lignans From Schisandra chinensis in Carbon Tetrachloride-Intoxicated Rats and Patients With Advanced Hepatocellular Carcinoma

open access: yesFrontiers in Pharmacology, 2018
It is highly valuable to study the pharmacokinetics of herbal components under the pathological condition of liver dysfunction for safe and rational use of herbal medicines.
Rongrong Wu   +6 more
doaj   +1 more source

Chemical Structures of Lignans and Neolignans Isolated from Lauraceae

open access: yesMolecules, 2018
Lauraceae is a good source of lignans and neolignans, which are the most chemotaxonomic characteristics of many species of the family. This review describes 270 naturally occurring lignans and neolignans isolated from Lauraceae.
Ya Li   +4 more
doaj   +1 more source

Identification and Quantitative Determination of Lignans in Resins using C NMR Spectroscopy

open access: yesNatural Product Communications, 2011
Identification and quantitative determination of individual components of resin collected on the trunk of 28 Cedrus atlantica trees, grown in Corsica, has been carried out using 13 C NMR spectroscopy.
Anne-Marie Nam   +4 more
doaj   +1 more source

Lignans in Knotwood of Norway Spruce: Localisation with Soft X-ray Microscopy and Scanning Transmission Electron Microscopy with Energy Dispersive X-ray Spectroscopy

open access: yesMolecules, 2020
Lignans are bioactive compounds that are especially abundant in the Norway spruce (Picea abies L. Karst.) knotwood. By combining a variety of chromatographic, spectroscopic and imaging techniques, we were able to quantify, qualify and localise the easily
Tuomas Mansikkala   +11 more
doaj   +1 more source

Establishment of a pharmacokinetics and pharmacodynamics model of Schisandra lignans against hippocampal neurotransmitters in AD rats based on microdi-alysis liquid chromatography-mass spectrometry

open access: yesFrontiers in Pharmacology
Objective: Our previous studies substantiated that the biological activity of Schisandra chinensis lignans during the treatment of Alzheimer’s disease (AD) was mediated by neurotransmitter levels, and 15 of its active components were identified. However,
Jinpeng Zhang   +10 more
doaj   +1 more source

Cytotoxicity, Post-Treatment Recovery, and Selectivity Analysis of Naturally Occurring Podophyllotoxins from Bursera fagaroides var. fagaroides on Breast Cancer Cell Lines

open access: yesMolecules, 2016
Despite prevention and treatment options, breast cancer (BC) has become one of the most important issues in the present day. Therefore, the need for more specific and efficient compounds remains paramount.
Omar Aristeo Peña-Morán   +4 more
doaj   +1 more source

Screening Analyses of Pinosylvin Stilbenes, Resin Acids and Lignans in Norwegian Conifers

open access: yesMolecules, 2006
The content and distribution of stilbenes and resin acids in Scots pine (Pinus sylvestris) and spruce (Picea abies), sampled in central Norway, have been examined. The contents of pinosylvin stilbenes in pine heartwood/living knots were 0.2-2/2-8 % (w/w).
Anne Fiksdahl   +3 more
doaj   +1 more source

Cereal Lignans, Natural Compounds of Interest for Human Health?

open access: yesNatural Product Communications, 2017
Cereals are suggested to be the most important sources of lignan in the diets of western populations. Recent epidemiological studies show that European subpopulations in which the major source of lignans are cereals, display lower disease frequency ...
Isabella Zanella   +3 more
doaj   +1 more source

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