The basic chemical substances of total alkaloids of and their anti-neuroinflammatory activities.

To clarify the chemical basis of the total alkaloids of , HPLC-VWD chromatogram of total alkaloids was established. Under its guidance, modern chromatographic and spectroscopic techniques were used to track, isolate and identify the representative principal components. As a result, one new monoterpenoid indole alkaloid, 3,15-4-methoxymethyl-geissoschizine methyl ether (1), together with 20 known alkaloids (), and 5 other known compounds () were obtained.

The basic chemical substances of total alkaloids of Menispermi Rhizoma and their anti-inflammatory activities.

Menispermi Rhizoma is the dried rhizome of DC. (Menispermaceae), which commonly used to treat sore throat, enteritis, and dysentery in traditional Chinese medicine. To clarify the chemical basis of the total alkaloids of M.

The regulation of T helper cell polarization by the diterpenoid fraction of based on the JAK/STAT signaling pathway.

The diterpenoid fraction (DF) prepared from fruit of was shown to have potential therapeutic effects on collagen-induced arthritis (CIA) rats based on our previous studies. As a continuation of those studies, herein, a lipopolysaccharide-induced endotoxin shock mouse model was used. The results showed that 0.

The basic chemical substances of three medicinal parts from G. Don.

G. Don belongs to Ericaceae family. As a toxic traditional Chinese medicine, its roots, flowers, and fruit are often mixed and substituted arbitrarily to treat rheumatoid arthritis in clinic.

4-Dimethylaminopyridine promoted interfacial polymerization between hyperbranched polyesteramide and trimesoyl chloride for preparing ultralow-pressure reverse osmosis composite membrane.

We have presented a concept of ultralow-pressure reverse osmosis membrane based on hyperbranched polyesteramide through interfacial reaction promoted by pyridine derivate. In this strategy, a key catalyst of 4-dimethylaminopyridine, which can both eliminate the steric hindrance of acyl transfer reaction and facilitate the phase transfer in interfacial polymerization, is adopted to drive the formation of a thin film composite membrane from the hyperbranched polyesteramide and trimesoyl chloride. The results of the characterization demonstrate that a dense, rough, and hydrophilic active layer with a thickness of about 100 nm is formed when the 4-dimethylaminopyridine catalyst is used.