Related Experiment Video
Updated: Mar 28, 2026

Screening and Isolation of C-Glycoside-Cleaving Intestinal Bacteria
Published on: February 28, 2025
Two new glycosides from Dryopteris fragrans with anti-inflammatory activities
Bing Peng1, Rui-Feng Bai2, Ping Li1
1a Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing Institute of Traditional Chinese Medicine , Beijing 100010 , China.
Abstract:
Phytochemical investigation on the aqueous extract from Dryopteris fragrans led to the isolation of one new chromone glycoside, frachromone C (1), and one new coumarin glycoside, dryofracoulin A (2), together with one known undulatoside A (3). Their structures were elucidated by a combination of 1D and 2D NMR, HRMS, and chemical analysis. Compounds 1-3 exhibited inhibition on nitric oxide production in lipopolysaccharide induced RAW 264.7 macrophages with their IC50 values of 45.8, 65.8, and 49.8 μM, respectively.
More Related Videos
07:36Analysis of Raw and Processed Cyperi Rhizoma Samples Using Liquid Chromatography-Tandem Mass Spectrometry in Rats with Primary Dysmenorrhea
Published on: December 23, 2022
12:34Author Spotlight: Exploring ShiDuGao's Multi-Target Approach in Anus Eczema Treatment
Published on: January 12, 2024
Related Concept Videos
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
Acarbose and miglitol are...
Antifungal Agents
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
Dipeptidyl Peptidase 4 Inhibitors