2. Immunology/Inflammation Metabolic Enzyme/Protease
  3. NO Synthase Arginase
  4. Piceatannol 3'-O-glucoside

Piceatannol 3'-O-glucoside  (Synonyms: 白皮杉醇 3'-O-葡萄糖苷; Quzhaqigan)

目录号: HY-N2237 纯度: 99.87%
COA 产品使用指南

摩尔计算器

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 I 和 Arginase II，IC50 值分别为 11.22 μM 和 11.06 μM。

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Piceatannol 3'-O-glucoside Chemical Structure

Piceatannol 3'-O-glucoside Chemical Structure

CAS No. : 94356-26-0

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5 mg ￥1650
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10 mg ￥2500
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Other Forms of Piceatannol 3'-O-glucoside:

Piceatannol 3'-O-glucoside 相关抗体

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nNOS iNOS eNOS

  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

Piceatannol 3'-O-glucoside, an active component of Rhubarb, activates endothelial nitric oxide (NO) synthase through inhibition of arginase activity with IC50s of 11.22 µM and 11.06 µM against arginase I and arginase II, 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 IC50 value is 69 µM[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Piceatannol 3'-O-glucoside 相关抗体:
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].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量

406.38

Formula

C20H22O9
CAS 号
性状

固体

颜色

White to off-white

中文名称

白皮杉醇 3'-O-葡萄糖苷
结构分类
初始来源
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
细胞实验： 

DMSO 中的溶解度 : 50 mg/mL (123.04 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响，请使用新开封的 DMSO)

H2O 中的溶解度 : < 0.1 mg/mL (insoluble)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.4608 mL 12.3038 mL 24.6075 mL
5 mM 0.4922 mL 2.4608 mL 4.9215 mL
查看完整储备液配制表

* 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°C, 6 months; -20°C, 1 month (protect from light)。-80°C储存时，请在6个月内使用，-20°C储存时，请在1个月内使用。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物实验：

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

  • 方案 一

    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); 澄清溶液

    此方案可获得 ≥ 2.5 mg/mL（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；再向上述体系中加入 50 μL Tween-80，混合均匀；然后再继续加入 450 μL 生理盐水 定容至 1 mL。

    生理盐水的配制：将 0.9 g 氯化钠，溶解于 ddH₂O 并定容至 100 mL，可以得到澄清透明的生理盐水溶液。
  • 方案 二

    请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (6.15 mM); 澄清溶液

    此方案可获得 ≥ 2.5 mg/mL（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 μL 20% 的 SBE-β-CD 生理盐水水溶液 中，混合均匀。

    2 g SBE-β-CD（磺丁基醚 β-环糊精）粉末定容于 10 mL 的生理盐水中，完全溶解至澄清透明。
动物溶解方案计算器
请输入动物实验的基本信息：

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

只
由于实验过程有损耗，建议您多配一只动物的量
请输入您的动物体内配方组成：
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
如果您的动物是免疫缺陷鼠或者体弱鼠，建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
方案所需 助溶剂 包括：DMSO， ，均可在 MCE 网站选购。 ，Tween 80，均可在 MCE 网站选购。
计算结果
工作液所需浓度 : mg/mL
储备液配制方法 : mg 药物溶于 μL  DMSO（母液浓度为 mg/mL）。

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

您所需的储备液浓度超过该产品的实测溶解度，以下方案仅供参考，如有需要，请与 MCE 中国技术支持联系。
动物实验体内工作液的配制方法 : 取 μL DMSO 储备液，加入 μL 。 μL ，混合均匀至澄清，再加 μL Tween 80，混合均匀至澄清，再加 μL 生理盐水。
连续给药周期超过半月以上，请谨慎选择该方案。
请确保第一步储备液溶解至澄清状态，从左到右依次添加助溶剂。您可采用超声加热 （超声清洗仪，建议频次 20-40 kHz），涡旋吹打等方式辅助溶解。
纯度 & 产品资料

纯度: 99.87%

COA (303 KB) LCMS (93 KB)

产品使用指南 (1538 KB)
参考文献
Kinase Assay
[1]

Tissue lysates are prepared using lysis buffer (50 mM Tris-HCl, pH 7.5, 0.1 mM EDTA and protease inhibitors) by homogenization at 4°C followed by centrifugation for 20 min at 14,000× g at 4°C. The supernatants are used to assay for arginase activity. The livers or kidneys from C57BL/6 mice (10 weeks) are homogenized in the buffer (50 mM Tris-HCl, 150 mM NaCl, 1% Nonidet P-40, 1 mM EDTA, 1 µg/mL of leupeptin, 1 µg/mL of pepstatin, 1 µg/mL of aprotinin, 1 mM phenylmethylsulfonylflouride, 1 mM sodium orthovanadate, and 1 mM NaF) and centrifuged for 30 min at 14,000× g. The protein amount of the supernatant is analyzed by the Bradford method. Protein (100 µg) are separated in a 10% SDS-PAGE and then transferred to a nitrocellulose membrane. The blots are incubated with a monoclonal anti-arginase I, anti-arginase II, anti-endothelial nitric oxide synthase (eNOS), or anti-β-tubulin antibodies followed by the secondary antibody. The signals are detected using an enhanced chemiluminescence detection reagent with X-ray films[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

Mice[2]
Twenty 10-week-old male wild-type (WT) (C57BL/6J) and ApoE-/- mice are studied. To determine the effect of Piceatannol 3'-O-glucoside on vascular reactivity, aortic rings isolated from 20 male C57BL/6J WT mice fed a normal diet (ND) and 20 male ApoE-/- mice fed an HCD are studied for 6 weeks. Aortic rings are incubated with or without Piceatannol 3'-O-glucoside (50 μM) for 18 h. For the pathological assay, Piceatannol 3'-O-glucoside is administered in the drinking water to ApoE-/- mice for 6 weeks when the mice are started on the HCD. Given that each mouse consumes ~10 mL water/day this represents a daily dose of ~500 μg/mouse/day of Piceatannol 3'-O-glucoside[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
参考文献

Piceatannol 3'-O-glucoside 相关分类

完整储备液配制表

* 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°C, 6 months; -20°C, 1 month (protect from light)。-80°C储存时，请在6个月内使用，-20°C储存时，请在1个月内使用。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.4608 mL 12.3038 mL 24.6075 mL 61.5188 mL
5 mM 0.4922 mL 2.4608 mL 4.9215 mL 12.3038 mL
10 mM 0.2461 mL 1.2304 mL 2.4608 mL 6.1519 mL
15 mM 0.1641 mL 0.8203 mL 1.6405 mL 4.1013 mL
20 mM 0.1230 mL 0.6152 mL 1.2304 mL 3.0759 mL
25 mM 0.0984 mL 0.4922 mL 0.9843 mL 2.4608 mL
30 mM 0.0820 mL 0.4101 mL 0.8203 mL 2.0506 mL
40 mM 0.0615 mL 0.3076 mL 0.6152 mL 1.5380 mL
50 mM 0.0492 mL 0.2461 mL 0.4922 mL 1.2304 mL
60 mM 0.0410 mL 0.2051 mL 0.4101 mL 1.0253 mL
80 mM 0.0308 mL 0.1538 mL 0.3076 mL 0.7690 mL
100 mM 0.0246 mL 0.1230 mL 0.2461 mL 0.6152 mL
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Piceatannol 3'-O-glucoside94356-26-0Quzhaqigan白皮杉醇 3'-O-葡萄糖苷NO SynthaseArginaseNitric oxide synthasesNOSInhibitorinhibitorinhibit

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