|Source:||The fruits of Syringa vulgaris|
|Biological Activity or Inhibitors:||1. Syringin has antitumour effect.
2. Syringin has antiproliferative effect.
3. Syringin has immunomodulatory effect.
4. Syringin has platelet aggregation inhibiting effect.
5. Syringin can prevent Abeta(25-35)-induced neuronal cell damage.
6. Syringin has anti-inflammatory and antinociceptive effects, may be attributed to its in vivo transformation to sinapyl alcohol.
|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||2.6853 mL||13.4264 mL||26.8528 mL||53.7057 mL||67.1321 mL|
|5 mM||0.5371 mL||2.6853 mL||5.3706 mL||10.7411 mL||13.4264 mL|
|10 mM||0.2685 mL||1.3426 mL||2.6853 mL||5.3706 mL||6.7132 mL|
|50 mM||0.0537 mL||0.2685 mL||0.5371 mL||1.0741 mL||1.3426 mL|
|100 mM||0.0269 mL||0.1343 mL||0.2685 mL||0.5371 mL||0.6713 mL|
Fundam Clin Pharmacol. 2015 Apr;29(2):178-84.
|Syringin may exert sleep-potentiating effects through the NOS/NO pathway.[Pubmed: 25377727]|
|Syringin significantly reduced NO concentration and NOS activity. Administration of l-Arg prolonged sleep latency and shortened sleep duration, and the effects were fully reversed by Syringin coadministration. Administration of L-NAME induced a significant reduction in sleep latency and a corresponding increase in sleep duration, and coadministration of Syringin further enhanced the effects. The finding of our study demonstrated that Syringin could exert sleep-potentiating effects on anesthetized mice in a time- and dose-dependent manner, and these effects may be intimately correlated with the NO/NOS pathway.|
Arch Pharm Res. 2010 Apr;33(4):531-8.
|Syringin from stem bark of Fraxinus rhynchophylla protects Abeta(25-35)-induced toxicity in neuronal cells.[Pubmed: 20422361]|
|When the neuroblastoma cells were exposed to 50 microM Abeta(25-35), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) reduction rate (survival rate) decreased to 60.21 +/- 2.16% over control while Syringin treated ones recovered cell viability up to 79.12 +/- 1.39% at 20 microM. In addition, 20 microM Syringin almost completely removed Abeta(25-35)-induced reactive oxygen species. The neuroprotective effect of Syringin seemed to be originated from the reduction of apoptosis since decrease in caspase-3 activity and expression, reduction in cleaved PARP, and DNA fragmentation were observed. These results suggest that F. rhynchophylla and Syringin are expected to be useful for preventing Abeta(25-35)-induced neuronal cell damage.|
Planta Med. 2004 Nov;70(11):1027-32.
|Anti-inflammatory and antinociceptive effects of sinapyl alcohol and its glucoside syringin.[Pubmed: 15549657]|
|In the present study, Syringin, isolated by activity-guided fractionation of the ethyl acetate (EtOAc) extracts of the stem bark of Magnolia sieboldii, and sinapyl alcohol, the hydrolysate of Syringin, were evaluated for anti-inflammatory and antinociceptive activities. Sinapyl alcohol (20, 30 mg/kg/day, p. o.) inhibited increased vascular permeability by acetic acid in mice and reduced acute paw edema by carrageenan in rats more so than Syringin. When analgesic activity was measured using the acetic acid-induced writhing test and the hot plate test, sinapyl alcohol was much more potent than Syringin in a mouse model. In addition, sinapyl alcohol more potently inhibited lipopolysaccharide (LPS)-induced nitric oxide (NO), prostaglandin E2 (PGE2), and tumor necrosis factor (TNF)-alpha production by macrophages than Syringin. Consistent with these observations, the expression levels of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2 was reduced by sinapyl alcohol in a concentration-dependent manner. These results suggest that the anti-inflammatory and antinociceptive effects of Syringin after oral administration may be attributed to its in vivo transformation to sinapyl alcohol.|