Results 191 to 200 of about 10,438 (226)

Recognition of molecularly imprinted polymers for a quaternary alkaloid of berberine

Talanta, 2011
Selective 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, Chih-Hung, Wang, Arh-Hwang, Chen   +2 more
openaire   +2 more sources

Effect of berberine alkaloids on Bifidobacterium adolescentis growth by microcalorimetry

Journal of Thermal Analysis and Calorimetry, 2009
The inhibitory effects of three berberine alkaloids (BAs) from Coptis chinensis Franch on Bifidobacterium adolescentis growth were investigated by microcalorimetry. The growth rate constant (k) and maximum heat-output power (Pmax) decreased and peak time of maximum heat-output power (tp) prolonged with the increase of BAs concentration. Half inhibitory
D. Yan, Y. M. Han, L. Wei, X. H. Xiao
openaire   +1 more source

Alkaloids of the Papaveraceae V. Muramine and berberine from Argemone squarrosa

Journal of Pharmaceutical Sciences, 1967
Argemone 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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Recent Chemical Progress in Berberine Alkaloids

HETEROCYCLES, 1976
Tetsuji Kametani, Masataka Ihara, Toshio Honda   +2 more
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BERBERINE, A NATURAL ALKALOID, AFFECTS ZEBRAFISH CARDIOVASCULAR DEVELOPMENT

2016
The zebrafish larva is increasingly used as a vertebrate animal model for in vivo drug discovery and for toxicology and biosafety assessments, bridging the gap between cell assays and rodent assays. In fact, zebrafish responses to toxic compounds are highly predictive of mammalian responses because of their very similar physiology, development and ...
Pucci, C., MARTINI, DAVIDE, GABELLINI, CHIARA, BATISTONI, RENATA, ANDREAZZOLI, MASSIMILIANO   +4 more
openaire   +1 more source

Cryptic stereochemistry of berberine alkaloid biosynthesis

Journal of the American Chemical Society, 1995
Jeffrey A. Bjorklund, Thomas Frenzel, Martina Rueffer, Motomasa Kobayashi, Ursula Mocek, Christina Fox, John M. Beale, Stefan Groeger, Meinhart H. Zenk, Heinz G. Floss   +9 more
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Photochemical formation of berberine alkaloids from protopine alkaloids

Tetrahedron Letters, 1967
X.A. Dominguez, Jesus Garcia Delgado, W.P. Reeves, P.D. Gardner   +3 more
openaire   +1 more source

Berberine alkaloids inhibit the proliferation and metastasis of breast carcinoma cells involving Wnt/β-catenin signaling and EMT

Phytochemistry, 2022
Hongfei Lu
exaly  

ChemInform Abstract: RECENT CHEMICAL PROGRESS IN BERBERINE ALKALOIDS

Chemischer Informationsdienst, 1976
T. KAMETANI, M. IHARA, T. HONDA
openaire   +1 more source

[Anticomplement activity of Mahonia aquifolium bisbenzylisoquinoline alkaloids and berberine extract].

Ceska a Slovenska farmacie : casopis Ceske farmaceuticke spolecnosti a Slovenske farmaceuticke spolecnosti, 2002
Crude extracts obtained from the stem bark of Mahonia aquifolium have been investigated as to the chemical composition and anticomplementary activity. The results show that their anticomplementary activity is mainly due to the alkaloid components.
D, Kostálová, M, Bukovský, H, Koscová, A, Kardosová   +3 more
openaire   +1 more source