Results 111 to 120 of about 19,660 (234)

Four new diterpenoid alkaloids from Delphinium pentagynum [PDF]

open access: yes, 1982
Four new diterpenoid alkaloids, dihydrogadesine, 14-acetyldihydrogadesine, pentagynine and dihydropentagynine, were isoalted and identified in Delphinium pentagynum.This work has been partially financed by a grant from the Assessorial Commission for ...
Díaz, R.   +2 more
core   +1 more source

Epoxy Clerodane Diterpene Attenuates the Differentiated Adipocyte Hypertrophy and Enhances Mitochondrial Metabolism

open access: yesChemistryOpen, Volume 15, Issue 7, July 2026.
Epoxy Clerodane Diterpene (ECD) significantly reduces adipocyte hypertrophy and lipid accumulation in human mesenchymal stem cell (hMSC)‐derived adipocytes. ECD improves mitochondrial membrane potential (ΔΨm), increases thermogenic regulators (UCP‐1, PPARγC1α), decreases adipogenic markers (C/EBPα, PPARγ), and reduces inflammatory mediators (TNF‐α, NF ...
Sahar Abdulaziz AlSedairy   +4 more
wiley   +1 more source

Natural Products as Modulators of ABC Transporters in Breast Cancer

open access: yesPhytotherapy Research, Volume 40, Issue 7, Page 4611-4637, July 2026.
ABSTRACT Breast cancer remains a significant global health challenge, with high incidence and mortality rates despite advancements in early detection and treatment. Multidrug resistance (MDR), particularly in aggressive subtypes like triple‐negative breast cancer (TNBC), continues to hinder effective therapy.
Yoganishalini Sagadevan   +2 more
wiley   +1 more source

Diterpenoid alkaloids from Delphinium uncinatum [PDF]

open access: yes, 1998
From the aerial parts of Delphinium uncinatum a new diterpenoid uncinatine and four known norditerpenoid alkaloids have been isolated. By spectral data (H-1 and C-13 NMR) the known compounds were established as 14-acetylperegrine, 14-acetylvirescenine ...
Mericli, AH   +9 more
core   +1 more source

Pangenome analysis reveals the genetic mechanism underlying high‐altitude adaptation in Qinghai–Xizang (Tibet) Plateau Rhododendron

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 7, Page 2166-2188, July 2026.
Pan‐genome analysis reveals that high‐altitude Rhododendron species resist alpine cold stress by rapidly sensing and engaging the chilling response pathway and genes that directly and indirectly protect the plant from UV radiation. Heritable genomic features such as long terminal repeats contribute to the adaptive diversification of Rhododendron ...
Haoyang Zhou   +11 more
wiley   +1 more source

Functional Characterisation of HAIRPLUS (NtHAP) Genes Involved in Trichome Development and Specialised Metabolism of Tobacco

open access: yesPlant Biotechnology Journal, Volume 24, Issue 7, Page 4640-4655, July 2026.
ABSTRACT Plant glandular trichomes are specialised epidermal structures capable of synthesising, storing and secreting numerous varieties of secondary metabolites in different classes and are central to plant defence and the biosynthesis of high‐value metabolites.
Hai Liu   +4 more
wiley   +1 more source

Chemical transformation of diterpenoid alkaloids [PDF]

open access: yes, 2018
The diterpenoid alkaloids, with an intriguing chemistry and numerous varied bioactivities, constitute the largest and most complicated group of terpenoid alkaloids.
D, Batsuren, J, Ganbaatar
core  

HỢP CHẤT DITERPENOID VÀ FLAVONOID TỪ LÁ BÌNH BÁT NƯỚC ANNONA GLABRA L. (ANONACEAE)

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2014
Từ phân đoạn hexane và ethyl acetate lá Bình bát nước (Annona glabra L.) hai hợp chất đã được phân lập và xác định cấu trúc là 8(14), 15-pimaradien-18-oic (1) acid và  quercetin (2). Cấu trúc các hợp chất được xác định dựa trên các phổ 1D và 2D NMR.
Phạm Thị Nhật Trinh   +2 more
doaj  

Leonurun, a Novel Labdane Diterpenoid from Leonotis leonurus [PDF]

open access: yes, 2015
A novel labdane diterpenoid, leonurun, has been isolated from the leaves of Leonotis leonurus. This structure was determined from spectroscopic data and the relative stereochemistry from single-crystal X-ray diffraction analysis.KEYWORDS: Labdane ...
McKenzie, JM, Green, IR, Mugabo, P
core   +1 more source

Two new diterpenoid alkaloids from Aconitum cochleare [PDF]

open access: yes, 2005
Two new diterpenoid alkaloids, cochleareine (1) and acoleareine (2) together with the known alkaloids 14-acetyltalatisamine (3) and taiatisamine (4) have been isolated from the aerial parts of Aconitum cochleare Woroschin growing wild in Eastern Turkey ...
Türkekul, Ayla   +3 more
core   +2 more sources

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