This product is isolated and purified from the barks of Phellodendron chinense Schneid.
Neprotine/YATROIZINE HCL/Neprotin/Dibenzo[a,g]quinolizinium, 5,6-dihydro-3-hydroxy-2,9,10-trimethoxy-/3-Hydroxy-2,9,10-trimethoxy-5,6-dihydroisoquino[3,2-a]isoquinolinium/3-Hydroxy-2,9,10-trimethoxy-5,6-dihydroisoquinolino[3,2-a]isoquinolinium/NEPROTINE IODIDE/Jateorrhizine/Jatrorrhizine/jatorrhizine/Jateorhizine/Jatrorrhizin/NEPROTINE HCL/7,8,13,13a-Tetradehydro-3-hydroxy-2,9,10-trimethoxyberbinium/Yatrorizine
Effect of jatrorrhizine, berberine, Huanglian Decoction and compound-mimic prescription on blood glucose in mice.[Reference: WebLink]Chinese Traditional & Herbal Drugs, 2005, 36(4):548-51. To study the hypoglycemic activity of Jatrorrhizine (Jat) and compare the effects of Jat, berberine (Ber), Huanglian Decoction (HLD), and compounds-mimic prescription (Ber+Jat) on blood glucose level in mice. METHODS AND RESULTS:TLC-scanning method was adopted for the determination of Ber and Jat in HLD. Ber+Jat was made artificially according to the result of the TLC-scanning. Diabetic model mice were made by ip alloxan, diabetic and normal mice were given Jat, Ber, HLD, and Ber+Jat in different dose by ig and applied in the study. Blood glucose level was analyzed by spectrophotometry with glucose-oxidase. Jat, Ber, HLD, and Ber+Jat decreased blood glucose level of diabetic and normal mice at different degrees. HLD showed the most significant hypoglycemic activity. Jat also possessed the function of decreasing blood glucose, which was less than that of Ber at the same dose. There was no significant difference between Ber+Jat and Ber. CONCLUSIONS: It implies that there are some other hypoglycemic ingredients in HLD besides Ber and Jat. Jat has no evident synergistic or antagonistic action when coexisted with Ber in natural ratio.
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Phellodendron bark (“Obaku”) is an important crude drug used in Kampo-medicine. Recently, powder formulation of phellodendron bark was approved as an “efficacious treatment for bruise, sprain, and periodontal diseases”, and it has been marketed as an OTC agent. To obtain this approval, the examination of quality control-related characteristics is necessary. Therefore, we established a quantitative method for jatrorrhizine, palmatine, and berberine determination. In this study, we compared the contents of the three constituents obtained from the extracts of Japanese and Chinese phellodendron bark and found remarkable difference.
berberine; jatrorrhizine; palmatine; powdered phellodendron bark formulation
[Simultaneous Quantitative Analysis of Berberine and Other Alkaloids in Powdered Phellodendron Bark].
Kamimura S1, Nishihara M1, Osumi Y1, Shiota H1.
Two novel Pt(ii) complexes, [Pt(B-TFA)Cl]Cl (Pt1) and [Pt(J-TFA)Cl]Cl (Pt2) with jatrorrhizine and berberine derivatives (B-TFA and J-TFA) were first prepared as desirable luminescent agents for cellular applications and potent telomerase inhibitors, which can induce bladder T-24 tumor cell apoptosis by targeting telomerase, together with induction of mitochondrial dysfunction, telomere DNA damage and cell-cycle arrest. Importantly, T-24 tumor inhibition rate (TIR) was 50.4% for Pt2, which was higher than that of Pt1 (26.4%) and cisplatin (37.1%). Taken together, all the results indicated that jatrorrhizine and berberine derivatives Pt1 and Pt2 show low toxicity and could be novel Pt-based anti-cancer drug candidates.
Two telomerase-targeting Pt(ii) complexes of jatrorrhizine and berberine derivatives induce apoptosis in human bladder tumor cells.
Qin QP 1, Wang ZF , Huang XL , Tan MX , Luo ZH , Wang SL , Zou BQ , Liang H .
2019 Oct 14
Two highly active anticancer Pt(II) complexes, [Pt(Jat1)Cl]Cl (Pt1) and [Pt(Jat2)Cl]Cl (Pt2), containing jatrorrhizine derivative ligands (Jat1 and Jat2) are described. Cell intake study showed high accumulation in cell nuclear fraction. Pt1 and Pt2 exhibited high selectivity for HeLa cancer cells (IC50 = 15.01 ± 1.05 nM and 1.00 ± 0.17 nM) comparing with HL-7702 normal cells (IC50 > 150 μM), by targeting p53 and telomerase. Pt2 containing Jat2 ligand was more potent and showed high selectivity for telomerase. It also caused mitochondria and DNA damage, sub-G1 phase arrest, and a high rate of cell apoptosis at the low dose of 1.00 nM. The HeLa tumor inhibition rate (TIR) of Pt2 was 48.8%, which was even higher than cisplatin (35.2%). In addition, Pt2 displayed green luminescent property and potent telomerase inhibition. Our findings demonstrated the promising development of platinum(II) complexes containing jatrorrhizine derivatives as novel Pt-based anti-cancer agents.
Copyright © 2019 Elsevier Masson SAS. All rights reserved.
Antitcancer activity; Apoptosis; Jatrorrhizine derivatives; Platinum(II) complex; Telomerase; p53
High in vitro and in vivo antitumor activities of luminecent platinum(II) complexes with jatrorrhizine derivatives.
Qin QP1, Zou BQ2, Wang ZF3, Huang XL3, Zhang Y4, Tan MX5, Wang SL5, Liang H6.
2019 Dec 1