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The mechanisms of ROS-photogeneration by berberine, a natural isoquinoline alkaloid
Journal of Photochemistry and Photobiology B: Biology, 2010The reactive oxygen species (ROS)-photogenerating mechanisms of berberine (BER) have been elucidated based on the time-dependent density functional theory calculated triplet excited (T(1)) state characters in explicit solvent models. The lowest triplet excitation energy of BER is obtained for the first time.
Liang, Shen, Hong-Fang, Ji
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Recognition of molecularly imprinted polymers for a quaternary alkaloid of berberine
Talanta, 2011Selective and affinitive imprinted polymers incorporating a quaternary alkaloid of berberine (BER) were prepared using a non-covalent imprinting method. The results showed that, compared to other imprinted polymers, the polymer AD-10 had not only a higher of the ratio of Q(MIP)/Q(BP) for BER adsorption, and but also a larger of the ratio of Q(MIP,B)/Q ...
Chia-Yun, Chen +2 more
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Berberine: A Promising Natural Isoquinoline Alkaloid for the Development of Hypolipidemic Drugs
Current Topics in Medicinal Chemistry, 2020Berberine, as a representative isoquinoline alkaloid, exhibits significant hypolipidemic activity in both animal models and clinical trials. Recently, a large number of studies on the lipid-lowering mechanism of berberine and studies for improving its hypolipidemic activity have been reported, but for the most part, they have been either incomplete ...
Dong-Dong, Li +4 more
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Antimicrobial properties of berberines alkaloids in Coptis chinensis Franch by microcalorimetry
Journal of Biochemical and Biophysical Methods, 2008The growth thermogenic curves of Escherichia coli (E. coli) affected by berberine, coptisine and palmatine were determined quantitatively by microcalorimetry. The power-time curves of E. coli with and without the three berberines alkaloids (BA) were acquired, meanwhile the extent and duration of inhibitory effects on the metabolism were evaluated by ...
Dan, Yan +3 more
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Journal of the Chinese Chemical Society, 1968
AbstractThe absorption maxima of the fluorescence spectra of the berberine series alkaloids are broadly distributed between 360 and 560 mμ.The fluorescence spectra of most substances of this series are very monotonous one having a single peak, the spectra of tetrahydrocoptisine and tetrahydroepiberberine are quite exceptional and consist of two wavy ...
Eigai Sebe +3 more
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AbstractThe absorption maxima of the fluorescence spectra of the berberine series alkaloids are broadly distributed between 360 and 560 mμ.The fluorescence spectra of most substances of this series are very monotonous one having a single peak, the spectra of tetrahydrocoptisine and tetrahydroepiberberine are quite exceptional and consist of two wavy ...
Eigai Sebe +3 more
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Berberine Alkaloid as a Sensitive Fluorescent Probe for Bile Salt Aggregates
The Journal of Physical Chemistry B, 2007Effect of sodium cholate (NaC) bile salt on the absorption and fluorescence properties of berberine cation was studied in aqueous solution and water-cosolvent mixtures. The alteration of the fluorescent behavior with increasing NaC concentration showed an entirely different trend from that found previously in the presence of sodium dodecylsulfate ...
Megyesi, Mónika, Biczók, László
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Alkaloids of the Papaveraceae V. Muramine and berberine from Argemone squarrosa
Journal of Pharmaceutical Sciences, 1967Argemone squarrosa Greene (subsp. squarrosa ) from several locations in central New Mexico was found to contain mainly muramine and berberine, but no allocryptopine. This is in contrast to an earlier literature finding that the same species from southern Colorado contained allocryptopine as the major, if not only, alkaloid.
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Potential Health Effects of the Natural Alkaloid Berberine: A Narrative Review
Nutrition ReviewsAbstract Berberine is a bioactive compound found in the rhizomes, stems, and fruits of plants belonging to the Berberidaceae, Ranunculaceae, Menispermaceae, Papaveraceae, and Rutaceae families. Although berberine is widely distributed throughout all parts of plants, the bark and root contain significantly higher concentrations of ...
Nevin Sanlier +2 more
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Recent Chemical Progress in Berberine Alkaloids
HETEROCYCLES, 1976Tetsuji Kametani +2 more
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