White crystalline powder
Ophiopogon japonicus,Trigonella foenum-graecum,Dioscorea nipponica,Costus lacerus,Nypa fruticans
(3β,25R)-Spirost-5-en-3-yl 6-deoxy-α-L-mannopyranosyl-(1->2)-[6-deoxy-α-L-mannopyranosyl-(1->4)]-β-D-glucopyranoside/collettisideiii/(25R)-Spirost-5-en-3b-yl O-6-Deoxy-a-L-mannopyranosyl-(1®2)-O-[6-deoxy-a-L-mannopyranosyl-(1®4)]-b-D-glucopyranoside/β-D-Glucopyranoside, (3β,25R)-spirost-5-en-3-yl O-6-deoxy-α-L-mannopyranosyl-(1->2)-O-[6-deoxy-α-L-mannopyranosyl-(1->4)]-/Dioscin/polyphyllin III/Diosgenin Bis-a-L-rhamnopyranosyl-(1®2 And 1®4)-b-D-Glucopyranoside
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provides coniferyl ferulate(CAS#:19057-60-4) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate
A phenyl-based polymer monolithic column was prepared via free radical polymerization in a stainless steel column with the size of 4.6 mm i.d. × 50 mm, using ethylene glycol phenyl ether acrylate as the monomer. The resulting monolithic column shows high porosity of 73.42% and relative uniform pore structure, as characterized by mercury porosimetry and scanning electron microscopy, respectively. The optimized polymer monolith column was used for on-line solid-phase extraction prior to the reversed phase mode HPLC-UV analysis for the determination of dioscin in human plasma, using a COSMOSIL C18 column (4.6 mm × 150 mm, 4.5 μm). Water was used to wash non-retained components from the SPE sorbent, and methanol water (80:20, V/V) was used as the mobile phase for isocratic elution of dioscin. The maximum adsorbed quantity of dioscin to the SPE column is 6.79 mg/g, which is high enough for the quantitative analysis of dioscin in plasma, due to the low content of dioscin in plasma. The method was validated by assessing the linearity, lower limit of quantification, intra- and inter-day precision, accuracy, and repeatability. The developed method was applied for the analysis of dioscin in plasma from a volunteer who had orally administered an aqueous extract of dioscorea nipponica rhizome, showing the method capable of detecting dioscin in the plasma. These results show that the developed method is a rapid method for on-line solid-phase extraction and determination of dioscin from plasma, exhibiting good selectivity with hydrogen bond interaction and hydrophobic interaction, good clean-up ability, cost-saving, and time-saving. Graphical abstract.
Dioscin; Dioscorea nipponica rhizome; Ethylene glycol phenyl ether acrylate; On-line SPE-HPLC; Polymer monolithic sorbent
A rapid method for on-line solid-phase extraction and determination of dioscin in human plasma using a homemade monolithic sorbent combined with high-performance liquid chromatography.
Peng S1,2, Bai L3,4, Shi X1, Li M1,2, Wang L1,2, Sun F1,2, Liu H1,2.
Chemotherapy for non-small cell lung cancer (NSCLC) is far from satisfactory, mainly due to poor targeting of antitumor drugs and self-adaptations of the tumors. Angiogenesis, vasculogenic mimicry (VM) channels, migration, and invasion are the main ways for tumors to obtain nutrition. Herein, RPV-modified epirubicin and dioscin co-delivery liposomes were successfully prepared. These liposomes showed ideal physicochemical properties, enhanced tumor targeting and accumulation in tumor sites, and inhibited VM channel formation, tumor angiogenesis, migration and invasion. The liposomes also downregulated VM-related and angiogenesis-related proteins in vitro. Furthermore, when tested in vivo, the targeted co-delivery liposomes increased selective accumulation of drugs in tumor sites and showed extended stability in blood circulation. In conclusion, RPV-modified epirubicin and dioscin co-delivery liposomes showed strong antitumor efficacy in vivo and could thus be considered a promising strategy for NSCLC treatment.
© 2019 The Authors. Cancer Science published by John Wiley & Sons Australia, Ltd on behalf of Japanese Cancer Association.
angiogenesis; cell-penetrating peptide; co-delivery liposome; non-small cell lung cancer; vasculogenic mimicry
RPV-modified epirubicin and dioscin co-delivery liposomes suppress non-small cell lung cancer growth by limiting nutrition supply.
Kong L1, Cai FY1, Yao XM1, Jing M1, Fu M1, Liu JJ1, He SY1, Zhang L1, Liu XZ1, Ju RJ2, Li XT1.
Dioscin is a typical saponin with multiple pharmacological activities. The past few years have seen an emerging interest in and growing research on this pleiotropic saponin. Here, we review the emerging pharmacological activities reported recently, with foci on its antitumor, antimicrobial, anti-inflammatory, antioxidative, and tissue-protective properties. The potential use of dioscin in therapies of diverse clinical disorders is also discussed.
Recent Advances in the Pharmacological Activities of Dioscin.
Yang L1, Ren S2, Xu F3, Ma Z4, Liu X5, Wang L5.
2019 Aug 14;
Dioscin(CCRIS 4123; Collettiside III) is a natural steroid saponin derived from several plants, showing potent anti-cancer effect against a variety of tumor cell lines. IC50 value:Target: Anticancer agentin vitro: dioscin (1, 2 and 4 μmol/L) could significantly inhibit the viability of LNCaP cells in a time- and concentration-dependent manner. Flow cytometry revealed that the apoptosis rate was increased after treatment of LNCaP cells with dioscin for 24 h, indicating that apoptosis was an important mechanism by which dioscin inhibited cancer . dioscin abrogated AKT phosphorylation, which subsequently impaired RANKL-induced nuclear factor-kappaB (NF-κB) signaling pathway and inhibited NFATc1 transcriptional activity. Moreover, in vivo studies further verified the bone protection activity of dioscin in osteolytic animal model . Dioscin reduced cell death and lactate dehydrogenase (LDH) release in cells subjected to I/R. I/R induced apoptosis and cytochrome c release from mitochondria to the cytosol and this was prevented by dioscin. In support, dioscin decreased Bax but increased Bcl-2 mRNA expression. Dioscin prevented I/R induced dissipation of ΔΨm .