异牡荆黄素
异牡荆黄素 性质
| 熔点 | 257-258 °C |
|---|---|
| 沸点 | 807.0±65.0 °C(Predicted) |
| 密度 | 1.686±0.06 g/cm3(Predicted) |
| 储存条件 | 2-8°C |
| 溶解度 | DMF：30mg/mL； DMSO：30mg/mL； DMSO:PBS (pH 7.2) (1:5)：0.16 mg/mL |
| 酸度系数(pKa) | 5.93±0.40(Predicted) |
| 形态 | 固体 |
| 颜色 | 粘黄色 |
| BRN | 66651 |
| 稳定性 | 吸湿性 |
| LogP | 1.280 (est) |
异牡荆黄素 用途与合成方法
异牡荆黄素是从亚洲水稻种得到的黄酮类物质，具有抗氧化、抗炎的活性；Isovitexin 作用与 JNK1/2 的抑制剂类似，能够抑制 NF-κB 的活化。
Isovitexin 是从亚洲水稻种得到的黄酮类物质，具有抗氧化、抗炎的活性；Isovitexin 作用与 JNK1/2 的抑制剂类似，能够抑制 NF-κB 的活化。|
JNK1
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JNK2
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NF-κB
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Isovitexin protects against LPS-induced oxidative damage by suppressing intracellular ROS generation, and also attenuates the effect of H 2 O 2 on cell viability. Isovitexin (0-100 μg/mL) with LPS (2 μg/mL) is not cytotoxic to RAW 264.7 cells, but 200 μg/mL Isovitexin shows significant cytotoxicity. Isovitexin (25, 50 μg/mL) inhibits LPS-induced increases in TNF-α, IL-6, iNOS, and COX-2 levels. Isovitexin (25, 50 μg/mL) also suppresses the IκBα phosphorylation and degradation in RAW 264.7 cells, and such an effect is consistent with that of JNK1/2 inhibitor.
Isovitexin (50 and 100 mg/kg, i.p.) causes less severe histopathological changes in the lung sections, and reduces inflammatory cell count in LPS-induced mice. Isovitexin (50 and 100 mg/kg, i.p.) protects against LPS-induced inflammation and oxidative stress in LPS-induced ALI mice by decreasing TNF-α and IL-6 production, ROS generation, and MPO and MDA content, increasing SOD and GSH levels and effectively inhibiting the protein expression of iNOS and COX-2. Isovitexin (25, 50, 100 mg/kg) dose-dependently reduces the survival rate of LPS/D-gal induced hepatic injury in mice. Isovitexin also inhibits NF-κB activation and up-regulates Nrf2 and HO-1 induced by LPS/D-gal in mice.
