|Source:||The roots of Eleutherococcus senticosus|
|Biological Activity or Inhibitors:||1. Eleutheroside E has anti-inflammatory effects by inhibiting NF-κB activities.
2. Eleutheroside E significantly decreases the inflammatory cell infiltration, pannus formation, cartilage damage, bone erosion of CIA mice, the generation of TNF-α and IL-6, the metabolism of drugs metabolized via CYP2C9 and CYP2E1.
3. Eleutheroside E may treat rheumatoid arthritis or increase the toxicity of the drugs.
4. Eleutheroside E has protective effects in ischemia heart, the beneficial effect of EE may provide an effective and powerful strategy to alleviate behavioral alterations induced by sleep deprivation.
5. Eleutheroside E may influence to immune-enhancing through increasing the physical endurance capacity and immune cell activation.
|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.
Need more advice on solubility, usage and handling? Please email to: email@example.com
|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||1.3464 mL||6.7319 mL||13.4638 mL||26.9277 mL||33.6596 mL|
|5 mM||0.2693 mL||1.3464 mL||2.6928 mL||5.3855 mL||6.7319 mL|
|10 mM||0.1346 mL||0.6732 mL||1.3464 mL||2.6928 mL||3.366 mL|
|50 mM||0.0269 mL||0.1346 mL||0.2693 mL||0.5386 mL||0.6732 mL|
|100 mM||0.0135 mL||0.0673 mL||0.1346 mL||0.2693 mL||0.3366 mL|
Arch Pharm Res. 2015 Mar 25.
|Utilization of circular dichroism experiment to distinguish acanthoside D and eleutheroside E.[Pubmed: 25802110 ]|
|Two lignan glycosides, acanthoside D (1) (=liriodendrin, (+)-syringaresinol di-O-β-D-glucopyranoside) and Eleutheroside E (2) have been confused each other for so long time, and hard to be distinguished each other. Now, this two compounds need to be defined properly so that all the commercial mistakes and confusions should not be made. They have identical planar structures except for the configurations at C-7 and C-8 in each structure according to the chemistry database, SciFinder®. The systematic name of acanthoside D is [(1S,3aR,4S,6aR)-tetrahydro-1H,3H-furo[3,4-c]furan-1,4-diyl]bis(2,6-dimethoxy-4,1-phenylene) bis-β-D-glucopyranoside (1), and the name of Eleutheroside E is [(1R,3aR,4S,6aS)-tetrahydro-1H,3H-furo[3,4-c]furan-1,4-diyl]bis(2,6-dimethoxy-4,1-phenylene) bis-β-D-glucopyranoside (2). The differences at two chiral centers do not make any differences in the NMR spectra. Thus, the circular dichroism were utilized to dissolve this difficult problem. Acanthoside D (1) showed a positive Cotton effect at 200 nm, whereas Eleutheroside E (2) exhibited a negative cotton effect at 200 nm. The absolute structure of acanthoside D was also confirmed by X-ray crystallography.|
Eur J Pharmacol. 2011 May 11;658(2-3):150-5.
|The effect of Eleutheroside E on behavioral alterations in murine sleep deprivation stress model.[Pubmed: 21376030 ]|
|Eleutheroside E (EE), a principal component of Eleutherococcus senticosus, has been reported to have anti-inflammatory and protective effects in ischemia heart etc. However, whether it can mitigate behavioral alterations induced by sleep deprivation, has not yet been elucidated. Numerous studies have demonstrated that memory deficits induced by sleep deprivation in experimental animals can be used as a model of behavioral alterations. The present study investigated the effect of EE, on cognitive performances and biochemical parameters of sleep-deprived mice. Animals were repeatedly treated with saline, 10 or 50mg/kg EE and sleep-deprived for 72 h by the multiple platform method. Briefly, groups of 5-6 mice were placed in water tanks (45 × 34 × 17 cm), containing 12 platforms (3 cm in diameter) each, surrounded by water up to 1cm beneath the surface or kept in their home cage. After sleep deprivation, mice showed significant behavioral impairment as evident by reduced latency entering into a dark chamber, locomotion and correctly rate in Y maze, and increased monoamines in hippocampus. However, repeated treatment with EE restored these behavioral and biochemical alterations in mice. In conclusion, the beneficial effect of EE may provide an effective and powerful strategy to alleviate behavioral alterations induced by sleep deprivation.|
Inflammation. 2014 Oct;37(5):1533-43.
|Eleutheroside E ameliorates arthritis severity in collagen-induced arthritis mice model by suppressing inflammatory cytokine release.[Pubmed: 24917466]|
|Rheumatoid arthritis is the most common arthritis and is mainly characterized by symmetric polyarticular joint disorders. Eleutheroside E (EE), a principal active constituent of Acanthopanax senticosus, is reported to have anti-inflammatory effect by inhibiting NF-κB activities. However, the effects of Eleutheroside E on rheumatoid arthritis (RA) severity are largely unknown. The purpose of this study was to indicate whether Eleutheroside E could ameliorate arthritis and reduce inflammatory cytokine release in collagen-induced arthritis (CIA) mice. The results showed that Eleutheroside E attenuated the severity of arthritis by reducing the mean arthritis score and arthritis incidence. Eleutheroside E also significantly decreased the inflammatory cell infiltration, pannus formation, cartilage damage, and bone erosion of CIA mice. Furthermore, Eleutheroside E caused a marked decrease of the production of TNF-α and IL-6 in vivo and in vitro. These observations identify a novel function of Eleutheroside E that results in inhibition of cytokine release, highlighting Eleutheroside E was a potential therapeutic agent for RA.|
BMC Complement Altern Med. 2014 Jan 2;14:1.
|Effects of eleutheroside B and eleutheroside E on activity of cytochrome P450 in rat liver microsomes.[Pubmed: 24383621]|
|This study was to investigate the effects of EB and Eleutheroside E on CYP2C9, CYP2D6, CYP2E1 and CYP3A4 in rat liver microsomes in vitro. METHOD: Probe drugs of tolbutamide (TB), dextromethorphan (DM), chlorzoxazone (CLZ) and testosterone (TS) as well as eleutherosides of different concentrations were added to incubation systems of rat liver microsomes in vitro. After incubation, validated HPLC methods were used to quantify relevant metabolites. RESULTS: The results suggested that EB and Eleutheroside E exhibited weak inhibition against the activity of CYP2C9 and CYP2E1, but no effects on CYP2D6 and CYP3A4 activity. The IC50 values for EB and Eleutheroside E were calculated to be 193.20 μM and 188.36 μM for CYP2E1, 595.66 μM and 261.82 μM for CYP2C9, respectively. Kinetic analysis showed that inhibitions of CYP2E1 by EB and Eleutheroside E were best fit to mixed-type with Ki value of 183.95 μM and 171.63 μM, respectively. CONCLUSIONS: These results indicate that EB and Eleutheroside E may inhibit the metabolism of drugs metabolized via CYP2C9 and CYP2E1, and have the potential to increase the toxicity of the drugs.|
Oriental Pharmacy & Experimental Medicine, 2010, 10(3):191-9.
|Immune-enhancing effect of Acanthopanax Koreanum and its component, Eleutheroside E on the protein-energy malnourished C57bl/6 mice[Reference: WebLink]|
|Acanthopanax Koreanum stem (AK) has been used in Korea as a tonic and sedative as well as a drug with ginseng like activities. The purpose of our present study was to investigate the effects of AK extract (AKE) and Eleutheroside E, major component of AKE on an exacerbated immune function through utilization of protein-energy malnutrition (PEM) diet by using forced swimming test (FST). The immobility time were significantly decreased in the AKE or Eleutheroside E-administrated group compared with the control group on the FST (P compared with unstimulated splenocytes but not interleukin (IL)-4. Eleutheroside E also significantly increased the IFN-\gamma production but not IL-2 and IL-4 in T cell line, MOLT-4 cells. These results suggest that AKE and Eleutheroside E may influence to immune-enhancing through increasing the physical endurance capacity and immune cell activation.|