berberrubine/coptis

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Immunoquantitative analysis for berberine and its related compounds using monoclonal antibodies in herbal medicines.

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Ingia / Ingia

The monoclonal antibody (MAb) against berberine, a bioactive constituent of Coptis japonica M., Phellodendron amurense R. and Hydrastis canadensis L., was produced and characterized. As immunogen, the derivative of berberine, 9-O-carboxymethyl berberrubine was synthesized and conjugated to carrier

Identification of a multi-component berberine 11-hydroxylase from Burkholderia sp. strain CJ1.

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Ingia / Ingia

Berberine (BBR) is a protoberberine alkaloid extracted from plants such as Coptis japonica (Ranunculaceae). In a previous report, we demonstrated the existence of a 11-hydroxylation pathway employed by BBR-utilizing bacteria for metabolism of BBR. In the present study, we report the

Ultrahigh-performance liquid chromatography with tandem mass spectrometry for the determination of 10 alkaloids in beagle plasma after the oral administration of the three Coptidis rhizoma extracts.

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Ingia / Ingia

Coptidis rhizoma (CR) is the dried rhizome of the ranunculaceous plant CR. For decades in China, this plant has been used to treat hypertension, hyperlipidemia, and chronic diarrhea and has been officially included in the Chinese Pharmacopoeia. The present paper presents a review of

Inhibitors of DNA topoisomerase I and II isolated from the Coptis rhizomes.

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Ingia / Ingia

A water extract of Coptis chinensis was found to have the ability to stabilize the cleavable complex with mammalian DNA topoisomerase I. As the result of bioassay-guided fractionation, two protoberberine alkaloids, epiberberine and groenlandicine, were identified as active principles with

Berberine metabolites could induce low density lipoprotein receptor up-regulation to exert lipid-lowering effects in human hepatoma cells.

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Ingia / Ingia

Berberine (BBR) is an isoquinoline alkaloid isolated from several Chinese herbal medicines, such as Coptis chinensis, Berberis aristata, and Coptis japonica. It exhibits a lipid-lowering effect by up-regulating the hepatic low density lipoprotein receptor (LDLR) expression. However, the plasma

Hydroxyl radical scavenging activities of isoquinoline alkaloids isolated from Coptis chinensis.

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Ingia / Ingia

The hydroxyl radical (*OH) scavenging and ferrous ion chelating activities of four isoquinoline alkaloids isolated from Coptis chinensis Franch were studied for the identification of their structural characteristics to scavenge *OH. The *OH was generated via Fe(II)-catalazed Fenton reaction in this

Simultaneous Determination of Eight Alkaloids in Rat Plasma by UHPLC-MS/MS after Oral Administration of Coptis deltoidea C. Y. Cheng et Hsiao and Coptis chinensis Franch.

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Ingia / Ingia

A ultra-high performance liquid chromatography-electrospray ionization tandem mass spectrometry (UHPLC-ESI-MS/MS) method was successfully developed and validated for the identification and determination of eight alkaloids: tetrahydropalmatine (A); palmatine (B); magnoflorine (C); columbamine (D);

Cytotoxicity and antihyperglycemic effect of minor constituents from Rhizoma Coptis in HepG2 cells.

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Ingia / Ingia

Generally, berberine, coptisine, palmatine, and jatrorrhizine were considered as the main bio-active compounds in Rhizoma Coptis (RC). Little attention was paid to investigate the pharmacological activity of minor constituents in RC. The present study was designed to separate the minor compounds,

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