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Piceatannol 3'-O-glucoside
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Piceatannol 3'-O-glucoside图片
CAS NO:94356-26-0
包装与价格:
包装价格(元)
1mg电议
5mg电议
10mg电议

产品名称
白皮杉醇 3'-O-葡萄糖苷
Quzhaqigan
产品介绍
Piceatannol 3'-O-glucoside 是 Rhubarb 的一种活性成分,通过抑制精氨酸酶 (Arginase) 活性激活内皮细胞一氧化氮合酶 (NO synthase),抑制Arginase IArginase IIIC50值分别为 11.22 μM 和 11.06 μM。
生物活性

Piceatannol 3'-O-glucoside, an active component of Rhubarb, activates endothelialnitric oxide(NO)synthasethrough inhibition ofarginaseactivity withIC50s of 11.22 μM and 11.06 μM againstarginaseIandarginaseII, respectively.

IC50& Target

NO synthase[1]
IC50: 11.22 μM (Arginase I), 11.06 μM (Arginase II)[1]

体外研究
(In Vitro)

Piceatannol 3'-O-glucoside (Piceatannol-3'-O-β-D-glucopyranoside; PG) is a potent component of stilbenes, inhibits the activity of arginase I and II prepared from mouse liver and kidney lysates, respectively, in a dose-dependent manner. In human umbilical vein endothelial cells, incubation of Piceatannol 3'-O-glucoside markedly blocks arginase activity and increases nitrite and nitrate (NOx) production, as measured by Griess assay. In liver lysates, incubation of different concentrations of Piceatannol 3'-O-glucoside significantly decreases arginase I activity (75±5% at 1 μM, 72±7% at 3 μM, 62±1% at 10 μM) compared to untreated control (100±9%). In kidney lysates, the residual arginase activities after incubation of 1, 3 and 10 μM Piceatannol 3'-O-glucoside are 75±6, 74±5, and 53±8%, respectively. Arginase activity is measured in the presence of different concentration of Piceatannol 3'-O-glucoside (from 0 to 120 μM) using liver lysate and kidney lysate. The 50% inhibitory concentrations (IC50) are 11.22 μM for the liver lysate and 11.06 μM for kidney lysate. The values are obtained using the software of Graphpad prizm 4.0. Piceatannol 3'-O-glucoside inhibits arginase activity and increases NO production in HUVECs. Piceatannol 3'-O-glucoside inhibits lipoxygenase activity upto 66% at the concentration of 100 μM and IC50value is 69 μM[1].

体内研究
(In Vivo)

In order to ascertain whether Piceatannol 3'-O-glucoside (PG) ameliorates vascular function in wild-type (WT) and atherogenic model mice [apolipoprotein E-null mice (ApoE-/-)] and to investigate the possible underlying mechanism. Preincubation of aortic vessels from WT mice fed a normal diet (ND) with Piceatannol 3'-O-glucoside attenuates vasoconstriction response to U46619 and phenylephrine (PE), while the vasorelaxant response to acetylcholine (Ach) is markedly enhanced in an endothelium-dependent manner. Piceatannol 3'-O-glucoside treatment attenuates the phenylephrine (PE)-dependent contractile response, and significantly improves the acetylcholine (Ach)-dependent vasorelaxation response in aortic rings from ApoE-/-mice fed a high-cholesterol diet (HCD). Piceatannol 3'-O-glucoside administration in the drinking water significantly reduces fatty streak formation in ApoE-/-mice fed an HCD[2].

分子量

406.38

性状

Solid

Formula

C20H22O9

CAS 号

94356-26-0

中文名称

白皮杉醇 3'-O-葡萄糖苷

结构分类
  • Phenols
  • Polyphenols
  • Stilbenes
来源
  • Plants
  • Polygonaceae
  • Rheum officinaleBaill.
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO : 50 mg/mL(123.04 mM;Need ultrasonic)

H2O :< 0.1 mg/mL (ultrasonic;warming;heat to 60℃)(insoluble)

配制储备液
浓度溶剂体积质量1 mg5 mg10 mg
1 mM2.4608 mL12.3038 mL24.6075 mL
5 mM0.4922 mL2.4608 mL4.9215 mL
10 mM0.2461 mL1.2304 mL2.4608 mL
*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80℃, 6 months; -20℃, 1 month (protect from light)。-80℃ 储存时,请在 6 个月内使用,-20℃ 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂: 10% DMSO    40%PEG300   5%Tween-80   45% saline

    Solubility: ≥ 2.5 mg/mL (6.15 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (6.15 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH2O 中,得到澄清透明的生理盐水溶液
  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20%SBE-β-CDin saline)

    Solubility: ≥ 2.5 mg/mL (6.15 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (6.15 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

    请依序添加每种溶剂: 10% DMSO    90%corn oil

    Solubility: ≥ 2.5 mg/mL (6.15 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (6.15 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在本网站选购。