|Source:||The roots of Panax ginseng C. A. Mey.|
|Biological Activity or Inhibitors:|| 1. Ginsenoside Rg2 can protect H9c2 cells against H2O2- induced injury through its actions of anti-oxidant and anti-apoptosis.
2. Ginsenoside Rg2 suppresses the hepatic glucose production via AMPK-induced phosphorylation of GSK3βand induction of SHP gene expression, it may have a therapeutic potential for type 2 diabetic patients.
3. 20R-Ginsenoside Rg2 inhibits the cytokine interleukin 1 alpha (IL-1α)-induced reduction in gap junction-mediated intercellular communication (GJIC).
|Solvent:||Pyridine, Methanol, Ethanol, etc.|
|Storage:||Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
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|After receiving:||The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||1.2739 mL||6.3693 mL||12.7385 mL||25.4771 mL||31.8463 mL|
|5 mM||0.2548 mL||1.2739 mL||2.5477 mL||5.0954 mL||6.3693 mL|
|10 mM||0.1274 mL||0.6369 mL||1.2739 mL||2.5477 mL||3.1846 mL|
|50 mM||0.0255 mL||0.1274 mL||0.2548 mL||0.5095 mL||0.6369 mL|
|100 mM||0.0127 mL||0.0637 mL||0.1274 mL||0.2548 mL||0.3185 mL|
Planta Med., 2001, 67(5):417-22.
|Effects of ginsenosides from Panax ginseng on cell-to-cell communication function mediated by gap junctions.[Pubmed: 11488454 ]|
|In the present study we examined the effects of 27 ginsenosides isolated from Panax ginseng on GJIC. The results show that compounds 1 (oleanolic acid), 2 (ginsenoside-R0), 3 (ginsenoside-Rb1), 5 (ginsenoside-Rb2), 7 (ginsenoside-Rd), 8 (ginsenoside-Rg3), 12 (panaxadial), 13 (notoginsenoside-R4), 17 [ginsenoside-Rg2 (20S)], 18 (ginsenoside-Rf), and 26 (ginsenoside-F3) did not obviously affect GJIC, whereas compounds 4 (ginsenoside-Rc), 6 (ginsenoside-Rb3), 9 (ginsenoside-Rd2), 10 (notoginsenoside-Fe), 11 (ginsenoside-Rh2),14 (ginsenoside-Ra1), 15 (ginsenoside-Re), 16 (20R-Ginsenoside Rg2 ), 19 (ginsenoside-Ia), 20 [ginsenoside-Rh1 (20S)], 21 [ginsenoside-Rh1 (20R)], 22 (ginsenoside-F1), 23 (protopanaxatriol), 24 (panaxatriol), 25 (ginsenoside-Rg1), and 27 (chikusetsaponin-L8) induced GJIC reductions at various degrees. Compounds 2, 7, and 8 protected against the tyrosine phosphatase inhibitor vanadate-induced GJIC reduction, while compounds 1, 5, 7, and 17 inhibited the cytokine interleukin 1 alpha (IL-1alpha)-induced reduction in GJIC. Nevertheless, no compounds protected against the protein kinase C (PKC) activator 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced GJIC inhibition. On the other hand, GJIC reductions induced by compounds 6, 9,10, 20, 21, 22, 24, and 25 were inhibited by the tyrosine kinase (TK) inhibitor genistein, while GJIC reductions induced by compounds 6, 9, 14, 16, 19, 21, and 24 were attenuated in the presence of the PKC inhibitor calphostin C. However, GJIC reductions induced by compounds 4, 23, and 27 were not inhibited either by genistein or by calphostin C. These data indicate that various mechanisms are responsible for effects of ginsenosides on GJIC.|