Pseudohypericin - CAS 55954-61-5
Catalog number: 55954-61-5
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Pseudohypericin, which can be found in the herbs of Hypericum perforatum L, is implicated in the antidepressant efficacy of St. John's wort.
Yellow powder
PSEUDOHYPERICIN; Phenanthro[1,10,9,8-opqra]perylene-7,14-dione,1,3,4,6,8,13-hexahydroxy-10-(hydroxymethyl)-11-methyl-; 1,3,4,6,8,13-Hexahydroxy-10-(hydroxymethyl)-11-methylphenanthro[1,10,9,8-opqra]perylene-7,14-dione; 1,3,4,6,8,13-Hexahydroxy-10-hydroxymethyl-11-methylphenanthro[1,10,9,8-opqra]perylene-7,14-dione; PSEUDOPELLETIERINE HYDROCHLORIDE(RG)
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1.Microarray-based mRNA expression profiling of leukemia cells treated with the flavonoid, casticin.
Righeschi C;Eichhorn T;Karioti A;Bilia AR;Efferth T Cancer Genomics Proteomics. 2012 May-Jun;9(3):143-51.
Natural polyphenols play an important role in tumor inhibition. We used a doxorubicin-sensitive acute T-lymphoblastic leukemia cell line (CCRF-CEM) and its multidrug-resistant subline (CEM/ADR5000) to evaluate the activity of 15 plant polyphenols isolated in our laboratory (hypericin and pseudohypericin, verbascoside, ellagic acid, casticin, kaempferol-3-O-(2'',6''-di-E-p-coumaroyl)-glucopyranoside, kaempferol-3-O-(3,4-diacetyl-2,6-di-E-p-coumaroyl) -glucopyranoside, tiliroside, salvianolic acid B, oleuropein, rosmarinic acid, bergenin) or of others from commercial sources (curcumin, epigallocatechin-3-gallate, silymarin). Casticin was the most potent compound (IC50 values of 0.28 ± 0.02 μM in CCRF-CEM and 0.44 ± 0.17 μM in CEM/ADR5000 cells. The IC50 values of the other compounds tested ranged from 1.52 μM to 164.1 μM. A microarray-based mRNA expression profiling of CCRF-CEM cells treated with casticin was performed in order to identify genes with altered expression following casticin treatment.
2.[Biologically active substances isolated from Hypericum attenuatum Choisy].
Makovets'ka OIu Ukr Biokhim Zh (1999). 2000 May-Jun;72(3):110-3.
Four dianthrones, two oxymethylanthraquinones, two reductive forms of anthraquinones and five flavonoids have been isolated from the plant source Hypericum attenuatum Choisy (Guttiferae) firstly investigated for these substances contents. Dianthrones pseudohypericin, protohypericin, protopseudohypericin, oxymethylanthraquinones frangulaemodin, frangulin, reductive anthraquinones emodin anthrone, emodin anthranol, and flavonoids quercetin, quercitrin, isoquercitrin, rutin have been identified for the first time. High hyperoside contents in herb of Hypericum attenuatum is established.
3.Hypericum perforatum (St John's Wort): a non-selective reuptake inhibitor? A review of the recent advances in its pharmacology.
Nathan PJ J Psychopharmacol. 2001 Mar;15(1):47-54.
Hypericum possesses a unique pharmacology in that it displays the pharmacology of many classes of antidepressants and new mechanisms not typical of standard antidepressants. The most potent of all its action is the moderate to high potency for inhibition of the reuptake of monoamines, serotonin, dopamine and noradrenaline and the amino-acid neurotransmitters GABA and glutamate. Unlike standard reuptake inhibitors, hypericum exerts this reuptake inhibition non-competitively by enhancing intracellular Na+ ion concentrations. At a receptor level, chronic treatment with hypericum downregulates beta1-adrenoceptor, upregulates post-synaptic 5-HT1A receptors and 5-HT2 receptors. Although the major constituent responsible for the antidepressant effect is thought to be hyperforin, other constituents such as hypericin, pseudohypericin, flavonoids and oligomeric procyanidines may also play a direct or indirect role. While reuptake inhibition may more than likely be responsible for most of the antidepressant effect, other mechanisms may also contribute alone or in combination to exert the overall antidepressant action.
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CAS 55954-61-5 Pseudohypericin

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