MDL | MFCD07779133 |
---|---|
Molecular Weight | 718.61 |
Molecular Formula | C36H30O16 |
SMILES | O=C([C@@H]1[C@@H](C2=CC=C(O)C(O)=C2)OC3=C(O)C=CC(/C=C/C(O[C@@H](C(O)=O)CC4=CC=C(O)C(O)=C4)=O)=C13)O[C@@H](C(O)=O)CC5=CC=C(O)C(O)=C5 |
Salvianolic acid B is an active ingredient of Salvia miltiorrhiza, which has been widely applied in China for the management of various microcirculation-related disorders, such as cardiovascular disease , cerebrovascular disease, and diabetic vascular complication.
Salvianolic acid B (SA-B) 1 and 10 micromol/L decrease the cell active TGF-beta1 secretion by 63.3 % and 15.6 % of the control, down-regulat pro-collgen alpha1(I) mRNA expression to 77.0% and 51.8% respectively (P<0.05). SA-B 1 and 10 micromol/L also inhibit MAPK activity by 1 to 2 fold respectively.
[3]
The degradation of Salvianolic acid B is temperature dependent. It was stable at 4ºC for 30 h in aqueous solution. However, decomposition of Salvianolic acid B aqueous solution occurres automatically at 25ºC, and is enhanced at 37, 65 and 100ºC. On the other hand, Salvianolic acid B is also stable at 4, 25 and 37ºC for 30 h in TPA (total phenolic acids).
[4]
Salvianolic acid B is stable for 30 h in buffered phosphate aqueous solutions at pH 1.5, 3.0 and 5.0
. With an increase of pH from the neutral, the stability of Sal B decreased.
[4]
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Salvianolic acid B (SalB) (5 mg · kg-1 · h-1) significantly attenuates LPS-induced pulmonary microcirculatory disturbance, including the increase in leukocyte adhesion and albumin leakage. In addition, LPS increases pulmonary tissue wet-to-dry weight ratio and tumor necrosis factor [alpha] and interleukin 8 levels in plasma and bronchoalveolar lavage fluid enhances the expression of E-selectin, intercellular adhesion molecule 1, myeloperoxidase, MMP-2, and MMP-9, whereas it decreases the expression of AQP-1 and AQP-5 in pulmonary tissue, all of which are attenuated by SalB pretreatment[1]. SalB administration (10 mg/kg) significantly ameliorate the Aβ25-35 peptide-induced memory impairment in the passive avoidance task (P<0.05). SalB treatment also reduced the number of activated microglia and astrocytes that are observed during the inflammatory reaction after the administration of the Aβ25-35 peptide. Moreover, SalB markedly reduce inducible nitric oxide synthase and cyclooxygenase-2 expression levels and thiobarbituric acid reactive substances, which are increased by the administration of the Aβ25-35 peptide. Furthermore, SalB administration significantly rescue the Aβ25-35 peptide-induced decrease of choline acetyltransferase and brain-derived neurotrophic factor protein levels [2] .
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Solid
Room temperature in continental US; may vary elsewhere.
Powder | -20°C | 3 years |
---|---|---|
4°C | 2 years |
* The compound is unstable in solutions, freshly prepared is recommended.
H 2 O : 50 mg/mL ( 69.58 mM ; ultrasonic and adjust pH to 3 with HCl)
DMSO : 25 mg/mL ( 34.79 mM ; Need ultrasonic)
Concentration Solvent Mass | 1 mg | 5 mg | 10 mg |
---|
1 mM | 1.3916 mL | 6.9579 mL | 13.9158 mL |
5 mM | 0.2783 mL | 1.3916 mL | 2.7832 mL |
10 mM | 0.1392 mL | 0.6958 mL | 1.3916 mL |
Add each solvent one by one: PBS
Solubility: 50 mg/mL (69.58 mM); Clear solution; Need ultrasonic
Add each solvent one by one: 10% DMSO >> 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (3.48 mM); Clear solution
Add each solvent one by one: 10% DMSO >> 90% corn oil
Solubility: ≥ 2.5 mg/mL (3.48 mM); Clear solution