Results 71 to 80 of about 1,414 (184)

Rearranged abietane diterpenes from Salvia limbata

Phytochemistry, 1996
Six new rearranged abietane diterpenes were isolated from the roots of Salvia limbata. Their structures were established by 1D and 2D NMR techniques including spin decoupling, COSY, APT, HETCOR and COLOC ...
Topcu, G, Eris, C, Ulubelen, A
openaire   +2 more sources

Chemical Aspects Influencing Crack Formation in Black‐and‐White Oil‐Based Paints: Study of Five Spanish Abstract Informalist Paintings by Antonio Saura (1930–1998)

Chemistry–Methods, Volume 6, Issue 1, January 2026.
This study explores the chemical and physical mechanisms behind the distinct cracking patterns observed in the black‐painted areas of five works by Antonio Saura. Multiband imaging and portable digital microscopy were employed to document the morphology and distribution of crack patterns.
Margherita Gnemmi, Anna Vila EspuÑa, Miguel Ángel Herrero‐Cortell, Marcello Picollo, Laura Falchi, Elena Davanzo, Laura Fuster‐López, Francesca Caterina Izzo   +7 more
wiley   +1 more source

Extraction Optimization and Qualitative/Quantitative Determination of Bioactive Abietane-Type Diterpenes from Three Salvia Species (Common Sage, Greek Sage and Rosemary) by ¹H-qNMR

Molecules
The objective of this study was the optimization of the extraction process and the qualitative and quantitative determination of the bioactive metabolites: 12-O-methylcarnosic acid (12MCA), carnosic acid (CA), carnosol (CS), 7-O-methyl-epi-rosmanol (7MER)
Panagiotis Kallimanis, Prokopios Magiatis, Angeliki Panagiotopoulou, Kostas Ioannidis, Ioanna Chinou   +4 more
doaj   +1 more source

Exploring the Role of Phytoconstituent From Euphorbia neriifolia Targeting IL‐17A in Psoriasis: In Silico and In Vitro Study

Food Science &Nutrition, Volume 13, Issue 12, December 2025.
This research explores the various phytoconstituents from Euphorbia neriifolia targeting IL‐17A through in silico and in vitro studies for its role in the more precise and effective therapy in Psoriasis. Molecular docking revealed Taraxerol, Glutinol acetate, and Epifriedelanol showed strong IL‐17A binding (−10.3 to −10.0 kcal/mol), outperforming ...
Nitin Sharma, Sanjeev Kumar Sahu, Pankaj Verma, Tanmoy Roy, Sourbh Suren Garg, Manish Vyas, Anil Kumar Sah   +6 more
wiley   +1 more source

Abietane Lactones and Iridoids from Goldfussia yunnanensis

Chemical and Pharmaceutical Bulletin, 2007
Two new abietane diterpene lactones (1--2), three new abietane diterpene lactone glycosides (3--5) and a new iridoid glycoside (6), together with five known compounds, were isolated from the aerial parts of Goldfussia yunnanensis. The new compounds were determined to be 18-hydroxyhelioscopinolide A (1), 18-oxohelioscopinolide A (2), 18-hydroxy-3-O-beta-
Hong-Wei, Yu, Bo-Gang, Li, Guo-You, Li, Chang-Song, Li, Dong-Mei, Fang, Guo-Lin, Zhang   +5 more
openaire   +3 more sources

Overview of acute Chinese medicine poisoning in Hong Kong

Hong Kong Journal of Emergency Medicine, Volume 32, Issue 6, December 2025.
Abstract Background Chinese medicine (CM) poisoning is relatively rare in Hong Kong. According to the Department of Health, only 17 cases of self‐medicated Traditional Chinese Medicine (TCM)‐related poisoning were reported between 2019 and 2021—an average of approximately 5.7 cases per year.
Siu Kan Law, Yanping Wang, Xiao Xiao Wu
wiley   +1 more source

Abietane diterpenoids from Cephalotaxus lanceolata

Natural Product Research, 2017
A new abietane diterpenoid, 12-O-methyl-20-deoxocarnosol-3-one (1), and eight known abietane diterpenoids including 13-abietadien-12-one (2), 5,6-dehydrosugiol (3), sugiol (4), torreyayunnin (5), taxusabietane A (6), hinokiol (7), 3-acetoxyabieta-8,11,13-trien-12-ol (8), and martiusane (9) were obtained from leaves and twigs of Cephalotaxus lanceolata.
Xiao-Jiao, Chen, Ling, Ni, Mei-Fen, Bao, Li, Wang, Xiang-Hai, Cai   +4 more
openaire   +2 more sources

Abietane Diterpernoids from the Roots of Euphorbia ebracteolata [PDF]

Natural Products and Bioprospecting, 2018
A new ent-abietane diterpernoid, named ebracteolata D (1), along with 11 known analogues, was isolated from the roots of Euphorbia ebracteolata Hayata. The structure of 1 was elucidated on the basis of spectroscopic analysis and molecular modeling. Cytotoxicity of compounds 1-12 was evaluated as well as the effect on the NF-κB pathway.
Yuan-Liang Ma, Xiao-Han Tang, Wen-Juan Yuan, Xiao Ding, Ying-Tong Di, Xiao-Jiang Hao   +5 more
openaire   +3 more sources

SmbZIP5 Integrates Abscisic and Jasmonic Acid Signalling to Positively Regulate Tanshinone Biosynthesis in Salvia miltiorrhiza

Plant Biotechnology Journal, Volume 23, Issue 12, Page 5817-5832, December 2025.
ABSTRACT Salvia miltiorrhiza produces pharmacologically bioactive diterpenoid tanshinones which are regulated by jasmonate (JA) and abscisic acid (ABA) signalling, while their crosstalk in this process remains unclear. Here, we demonstrated that MeJA and ABA acted synergistically to enhance tanshinone biosynthesis.
Tingyao Liu, Min Shi, Yinkai Yang, Ruiyan Zhu, Yao Wang, Liqing Li, Biao Wang, Wei Zhou, Guoyin Kai   +8 more
wiley   +1 more source

Extraction optimization and reactivity of 7α-acetoxy-6β-hydroxyroyleanone and ability of its derivatives to modulate PKC isoforms

Scientific Reports
Protein kinase C is a family of kinases that play important roles in carcinogenesis. Medicinal plants from Plectranthus spp. (Lamiaceae) are a well-known source of interesting abietanes, such as 7α-acetoxy-6β-hydroxyroyleanone (Roy).
Vera M. S. Isca, Gabrielle Bangay, Salvatore Princiotto, Lucília Saraíva, Daniel J. V. A. dos Santos, Alfonso T. García-Sosa, Patrícia Rijo   +6 more
doaj   +1 more source