Related Experiment Video
Updated: Jun 15, 2025

Analytical Techniques for Assaying Nitric Oxide Bioactivity
Published on: June 18, 2012
Oleanane-type triterpenes from Salvia rosmarinus and their inhibitory activity on NO production
Qing-Jiang Xu1, Jia-Chen Liu1, Jia Xu2
1Beijing Union University, Beijing 100191, China.
Abstract:
Three new oleanane-type triterpenes, 2α,3β-dihydroxy-12-oxooleana-9(11)-en-28-13β,28-lactone (1), 2α,3α-dihydroxy-11-oxooleana-12-en-28-oic acid (2), and 3β-hydroxy-11-oxo-28-norolean-12,17-diene (3), one new natural product 2-hydroxy-3-oxooleana-1,12-dien-28-oic acid (4), as well as three known compounds 3β,12α-dihydroxyoleanan-28,13β-olide (5), 3β-hydroxyolean-11α,12α-epoxy-13β,28-lactone (6) and 2α,3β-digydroxy-9(11),12-dien-28-oic acid (7) were isolated and elucidated from the anti-inflammatory activity fraction of the ethanol extract of Salvia rosmarinus. The structures of the compounds were identified by spectral analysis and comparison with compounds reported in the literature. The inhibitory activity of all compounds on NO production in RAW 264.7 cells stimulated by lipopolysaccharide was tested. The results showed that compounds 2, 4 and 7 had significant anti-inflammatory activity.
More Related Videos
Related Concept Videos
Nitric Oxide Signaling Pathway
Antianginal Drugs: Nitrates and β-Blockers
Organic nitrates, such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow....
Antihypertensive Drugs: Vasodilators
Antianginal Drugs: Calcium Channel Blockers and Ranolazine
CCBs, a diverse class that includes dihydropyridines (nifedipine) and diphenylalkylamines (verapamil and diltiazem), exert their effect by blocking calcium channels in cardiac and smooth muscle cells. This...
Indirect-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
Reversible inhibitors display short to medium durations of action. Short-acting agents include simple alcohols with...
Cholinergic Antagonists: Chemistry and Structure-Activity Relationship

