Results 31 to 40 of about 479 (139)

Detection by UPLC/ESI-TOF-MS of Alkaloids in Three Lycopodiaceae Species from French Polynesia and Their Anticholinesterase Activity

open access: yesNatural Product Communications, 2009
Three Lycopodiaceae species from French Polynesia, Lycopodium venustulum C. Gaudichaud, Lycopodiella cernua (C. Linnaeus) R. E. Pichi Sermolli and Lycopodium henryanum E. D.
Raimana Ho   +4 more
doaj   +1 more source

Chemical Composition of Cynanchum auriculatum Royle Ex Wight and Its Potential Role in Ameliorating Colitis. [PDF]

open access: yesFood Sci Nutr
In this study, the water extract of Cynanchum auriculatum Royle ex Wight root (CW) was prepared and its chemical composition was characterized using UPLC‐Q‐TOF‐MS. CW significantly alleviated DSS‐induced colitis in mice, as demonstrated by increased colon length, reduced disease activity index scores, and decreased histological damage in colon tissues.
Li S   +10 more
europepmc   +2 more sources

Selection of Reference Genes for Expression Analysis in Chinese Medicinal Herb Huperzia serrata

open access: yesFrontiers in Pharmacology, 2019
Huperzine A (HupA) is a powerful and selective inhibitor of acetylcholinesterase. It has attracted widespread attention endangering the ultimate plant sources of Lycopodiaceae family.
Mengquan Yang   +8 more
doaj   +1 more source

Lycodine-Type Alkaloids from Lycopodiastrum casuarinoides and Their Acetylcholinesterase Inhibitory Activity

open access: yesMolecules, 2014
Four new lycodine-type alkaloids, namely 16-hydroxyhuperzine B (1), N-methyl-11-acetoxyhuperzine B (2), 8,15-dihydrolycoparin A (3) and (7S,12S,13R)-huperzine D-16-O-β-d-glucopyranoside (4), along with ten known analogues 5−14, were isolated from the ...
Dong-Bo Zhang   +4 more
doaj   +1 more source

Fingerprinting Food Supplements and Their Botanical Ingredients by Coupled UV/Vis/FTIR Spectrometry

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Food Science and Technology, 2013
Medicinal plants are used as ingredients for a large variety of herbal supplements. Their quality and safety versus efficacy, according to present legal requirements, need to meet the minimum quality criteria to support their use.
Anca Baciu   +4 more
doaj   +1 more source

Recent Approaches for the Synthesis of Pyridine and Quinoline Cores Present in Natural Products

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 10, 19 May 2026.
An anthology of the most recent methods used to synthesize pyridines and quinolines found in natural products over the last decade. Pyridines, quinolines, and their derivatives represent a class of significant heterocyclic compounds that are prevalent in a multitude of natural products, including alkaloids found in plants, fungi, insects, marine ...
Carl Bowman   +2 more
wiley   +1 more source

Diterpenoid Diversity across Land Plants

open access: yesHelvetica Chimica Acta, Volume 109, Issue 4, April 2026.
Here we bridge the knowledge of diterpene chemical diversity, biosynthesis, and evolution from nonvascular mosses and liverworts to that known from vascular plants. ABSTRACT The diverse array of diterpenoid natural products stems from the ease of manipulating the promiscuity of diterpene cyclases.
Anita Berg   +2 more
wiley   +1 more source

Orthoquinone, Cyclic, and Acyclic α‐Diketone Natural Products: From Food Applications to Pharmacotherapy

open access: yesPhytochemicals in Food and Medicine, Volume 1, Issue 1, March 2026.
The orthoquinone metabolites from plants have antimicrobial, antioxidant, antiviral, cytotoxic, and anti‐inflammatory effects. ABSTRACT The structural diversity of natural products is vast and fascinating, and they have been recognized as an enormously diverse source of new lead compounds.
Hidayat Hussain   +5 more
wiley   +1 more source

Acetylation‐Deacetylation‐Driven Natural Product Biosynthesis

open access: yesChemistryEurope, Volume 3, Issue 4, July 14, 2025.
This review summarizes the role of acetylation‐deacetylation in natural product biosynthesis, including acetylation followed by deacetylation after several biosynthetic steps, acetylation‐mediated rearrangement, acetylation‐triggered elimination, and the acetylation cycle as a regulatory mechanism. These processes are vital for the formation of complex
Huibin Wang, Ikuro Abe
wiley   +1 more source

Loss of Pathogenicity and Evidence of Horizontal Gene Transfer in Colletotrichum gloeosporioides From a Medicinal Plant

open access: yesMolecular Plant Pathology, Volume 26, Issue 6, June 2025.
A Colletotrichum gloeosporioides strain from Huperzia serrata lacks key pathogenicity genes CgDN3 and cap20 and has fewer pelB, pnl and pg genes. pksIII, for synthesis of huperzine A, was probably acquired by the host plant from the fungus. ABSTRACT Colletotrichum gloeosporioides is a major agricultural pathogen of crops that has also been identified ...
Xizhen Yue   +17 more
wiley   +1 more source

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