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Iridoid glycosides from Scrophularia ningpoensis
Three new minor iridoids were isolated from the roots of Scrophularia ningpoensis. They were elucidated as 8-O-feruloylharpagide, 8-O-(2-hydroxy-cinnamoyl)harpagide andExpand
Identification of three sulfate-conjugated metabolites of berberine chloride in healthy volunteers' urine after oral administration.
Structures of M1, M2, and M3 were firmly identified as jatrorrhizine-3-sulfate, demethyleneberberine-2-solfate, and thalifendine-10-savage, and the major metabolite was M2. Expand
Effect of Magnesium tanshinoate B on the production of nitric oxide in endothelial cells
Investigation of the effect of magnesium tanshinoate B (MTB), a compound purified from Danshen, on the production of NO in human endothelial cell line (ECV304) found that selective activation of cNOS by MTB may be employed therapeutically in modulating NO production in endothelial cells. Expand
Serratene-type triterpenoids from Huperzia serrata.
Seven new and 15 known serratene-type triterpenoids were isolated from the whole plant of Huperzia serrata and elucidated by means of spectroscopic analysis. Expand
Structure-activity relationship of natural flavonoids in hydroxyl radical-scavenging effects.
Phenolic hydroxyls in flavonoids were the main active groups capable of scavenging *OH; Hydroxyl groups in ring B and A were important *OH-scavenging active groups; and the ortho-dihydroxylgroups in ring A and/or B could greatly enhance the *OH’s scavenging activity of the rings. Expand
Anthraquinones from Knoxia valerianoides
Abstract Three new anthraquinones, 2-ethoxymethylknoxiavaledin, 2-formylknoxiavaledin and 2-hydroxymethyl- knoxiavaledin, together with seven known anthraquinones, were isolated from KnoxiaExpand
Miyoshianines A and B, two new lycopodium alkaloids from Huperzia miyoshiana.
Two new Lycopodium alkaloids are isolated from Huperzia miyoshiana (Makino) Ching (Huperziaceae) and their structures were determined by means of spectroscopic techniques. Expand
Serratane-type Triterpenoids from Huperzia Serrata
Sixteen serratane-type triterpenoids including three new compounds, 14β,15β- epoxyserratan-3β,21β,29-triol, and serrat-14-en-3α, 21β,24, 29-tetraol, were isolated from the whole plant of Huperzia serrata (Thunb) Trev. Expand
Contents of four active components in different commercial crude drugs and preparations of danshen (Salvia miltiorrhiza).
MTB can be used to standardize the various forms of danshen crude drugs and drug preparations from different sources to ensure consistent amount of its active ingredients and reproducible pharmacological actions. Expand