Related Experiment Video

Updated: Aug 30, 2026

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
12:00

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

Published on: July 5, 2017

Xanthones from the stem bark of Garcinia nigrolineata

Vatcharin Rukachaisirikul1, Thunwadee Ritthiwigrom, Athipol Pinsa

  • 1Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, 90112, Thailand. rvatchar@ratree.psu.ac.th

Phytochemistry
|October 22, 2003
PubMed

Related Concept Videos

Drugs Acting on Autonomic Ganglia: Stimulants01:23

Drugs Acting on Autonomic Ganglia: Stimulants


Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...