Eight new sesquiterpene alkaloids (1-8) and four known sesquiterpene alkaloids (9-12) have been isolated from the roots of Maytenus mekongensis. Structures were determined using extensive spectroscopic methods. The relative configuration of 7-epi-mekongensine (2) was established by single-crystal X-ray crystallographic analysis. The alkaloids were evaluated for antiplasmodial activity against Plasmodium falciparum, K1 strain, and for cytotoxicity using a panel of cell lines.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/np200014k | DOI Listing |
J Pharm Biomed Anal
January 2025
Department of Pharmaceutical Analysis, School of Pharmacy, Guizhou Medical University, Gui'an New District, Guizhou 561113, PR China. Electronic address:
Dendrobine is a sesquiterpene alkaloid primarily used in the treatment of inflammatory diseases, immune system disorders, and conditions related to oxidative stress. To understand the possible degradation pathways of dendrobine for its quality control, we conducted an in-depth investigation of its degradation products using forced degradation methods. The separation of dendrobine and its degradation products was achieved on a Shim-pack XR-ODS III (75 mm × 2 mm, 1.
View Article and Find Full Text PDFJ Korean Med Sci
January 2025
Division of Cardiology, Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
Background: The ionic mechanism underlying Brugada syndrome (BrS) arises from an imbalance in transient outward current flow between the epicardium and endocardium. Previous studies report that artemisinin, originally derived from a Chinese herb for antimalarial use, inhibits the Ito current in canines. In a prior study, we showed the antiarrhythmic effects of artemisinin in BrS wedge preparation models.
View Article and Find Full Text PDF<i>Ormocarpum trichocarpum</i> (Taub.) Engl. is a shrub or small tree harvested from the wild as a source of food, traditional medicines and wood.
View Article and Find Full Text PDFChem Biol Drug Des
December 2024
Zhuhai Hospital of Integrated Traditional Chinese & Western Medicine, Zhuhai, Guangdong, China.
Non-small-cell lung cancer (NSCLC) stands as a primary contributor to cancer-related deaths worldwide. It has been demonstrated that Lycorine (LYD), a naturally occurring active sesquiterpene present in Chinese medicinal plants, exhibits anti-cancer properties across various cancer cell lines. However, the underlying mechanisms of LYD-induced anti-tumor in NSCLC are not fully known.
View Article and Find Full Text PDFFoods
November 2024
Teaching and Experimental Center, Guangdong Pharmaceutical University, Guangzhou 510006, China.
(Lour.) Skeels, commonly known as Wampee, are valued for their edible and medicinal qualities, yet their pericarp and seeds are often discarded, resulting in wasted resources. This study investigates the anti-tumor potential of these by-products, focusing on their chemical composition and underlying mechanisms of action.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!