Results 71 to 80 of about 19,660 (234)

Two New C-20-Diterpenoid Alkaloids from the Tibetan Medicinal Plant Aconitum naviculare STAPF [PDF]

open access: yes, 2008
Two new C-20-diterpenoid alkaloids named naviculine A (1) and naviculine B (2), were isolated from Aconitum naviculare STAPF. Their structures were established by spectral methods, especially 2D-NMR spectra (H-1,H-1-COSY, HMQC.
Peng, SL   +9 more
core  

Diterpenoid alkaloids of Delphinium schmalhausenii [PDF]

open access: yes, 2006
From the aerial parts of Delphinium schmalhausenii six norditerpenoid alkaloids gigactonine, lycoctonine, anthranoyllycoctonine, delsemine A, delsemine B, N-acetyldelectine and a diterpenoid alkaloid septatisine were isolated.
Becker, H.   +7 more
core   +1 more source

Diterpenoids with Anti-Inflammatory Activity from the Wood of Cunninghamia konishii

open access: yesMolecules, 2013
Two new diterpenoids, konishone (1) and 3b-hydroxy-5,6-dehydrosugiol (2), along with three known diterpenoids—hinokiol (3), sugiol (4), and 12-hydroxy-6,7-secoabieta-8,11,13-triene-6,7-dial (5)—were isolated from the wood of ...
Yu-Chang Chen   +8 more
doaj   +1 more source

Synergistic enhancement SPF from annatto seed oil and alkaline extracts in association with organic UV filters

open access: yesInternational Journal of Cosmetic Science, EarlyView.
An SPF formulation incorporating Bixa orellana seed extracts and oils showed enhanced UV protection, highlighting the potential of natural bioactive compounds as effective boosters in photoprotective cosmetic products. Abstract Objective This study investigated the antioxidant activity of oil and alkaline aqueous extracts obtained from Bixa orellana ...
Ister Cordeiro Mariotini   +8 more
wiley   +1 more source

Total Syntheses of the C19 Diterpenoid Alkaloids (–)-Liljestrandisine and (–)-Liljestrandinine [PDF]

open access: yes, 2019
A unified synthetic strategy to access diterpenoid alkaloid natural products is presented. The highly bridged hexacyclic natural products are characterized as having a hydrindane bridged piperidyl motif that is common to the C19 aconitine type ...
Wong, Alice Rose
core   +1 more source

NO-Releasing Enmein-Type Diterpenoid Derivatives with Selective Antiproliferative Activity and Effects on Apoptosis-Related Proteins

open access: yesMolecules, 2016
A series of nine enmein-type ent-kaurane diterpenoid and furoxan-based nitric oxide (NO) donor hybrids (10a–i) were designed and synthesized from commercially available oridonin (1).
Dahong Li   +9 more
doaj   +1 more source

Dietary modulation of antimicrobial peptides (HAMP and LEAP2) in Chinook salmon (Oncorhynchus tshawytscha) fed a phytobiotic functional diet: Integrated genomic characterisation and tissue‐specific expression

open access: yesJournal of Fish Biology, EarlyView.
Abstract Antimicrobial peptides (AMPs) are key components of the innate immune system in fish, providing rapid protection against microbial pathogens. Among these, the liver‐expressed antimicrobial peptides (LEAPs), comprising LEAP‐1 (hepcidin; HAMP) and LEAP‐2, play central roles in host defence and iron regulation.
Roberta Marcoli   +6 more
wiley   +1 more source

Antibacterial Performance of Terpenoids from the Australian Plant Eremophila lucida

open access: yesAntibiotics, 2019
Plants in the Australian genus Eremophila (Scrophulariaceae) have attracted considerable recent attention for their antimicrobial compounds, which possess a wide range of chemical structures.
Israt J. Biva   +3 more
doaj   +1 more source

Towards an integrated molecular understanding of plant hormones

open access: yesJournal of Integrative Plant Biology, EarlyView.
This review offers a comprehensive overview of the nine plant hormones, delving into their biosynthesis, transport, signaling and crosstalk mechanisms. Because the complexity of plant hormonal control goes beyond these core elements, additional specific features are discussed. Lastly, this review highlights how fundamental insights drive hormonal‐based
Louise Vilain   +2 more
wiley   +1 more source

Enhancing Crop Resilience: Insights from Labdane-Related Diterpenoid Phytoalexin Research in Rice (Oryza sativa L.)

open access: yesCurrent Issues in Molecular Biology
Rice (Oryza sativa L.), as one of the most significant food crops worldwide, holds paramount importance for global food security. Throughout its extensive evolutionary journey, rice has evolved a diverse array of defense mechanisms to fend off pest and ...
Shiquan Bian   +7 more
doaj   +1 more source

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