Bilobalide(Synonyms: 白果内酯; (-)-Bilobalide)

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Bilobalide (Synonyms: 白果内酯; (-)-Bilobalide) 纯度: ≥98.0%

Bilobalide 是银杏叶中的的一种倍半萜三内酯成分，抑制 NMDA 诱导的胆碱流出，IC50 值为 2.3 µM。Bilobalide 通过激活 SH-SY5Y 细胞中的 PI3K/Akt 通路来防止细胞凋亡 (apoptosis)。对神经元发挥保护和营养作用。

Bilobalide(Synonyms: 白果内酯; (-)-Bilobalide)

Bilobalide Chemical Structure

CAS No. : 33570-04-6

规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ￥500 In-stock
10 mg ￥369 In-stock
50 mg ￥1548 In-stock
100 mg ￥2727 In-stock
200 mg   询价  
500 mg   询价  

* Please select Quantity before adding items.

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生物活性

Bilobalide, a sesquiterpene trilactone constituent of Ginkgo biloba, inhibits the NMDA-induced efflux of choline with an IC50 value of 2.3 µM. Bilobalide prevents apoptosis through activation of the PI3K/Akt pathway in SH-SY5Y cells. Exerts protective and trophic effects on neurons[1][2].

IC50 & Target

Human Endogenous Metabolite

 

体外研究
(In Vitro)

Bilobalide (1-100 µM) completely suppresses the NMDA-evoked release of choline in a concentration-dependent manner with IC50 value of 2.3 µM[1].
Bilobalide (1, 5 and 10 μM) alone for 24 h does not affect cell viability of SH-SY5Y cells. Pre-treatment of cells with Bilobalide concentration-dependently prevents Aβ 1-42-, H2O2– and serum deprivation-induced decrease of cell viability, with the best protective effect obtained at 10 μM[2].
Bilobalide (5 and 10 μM; 24 h) treatment dose-dependently increases levels of p-Akt (Ser473 and Thr308) in SH-SY5Y cells[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis

Cell Line: SH-SY5Y cells
Concentration: 5 and 10 μM
Incubation Time: 24 hours
Result: Induced a significant increase in levels of p-Akt (Ser473 and Thr308).

体内研究
(In Vivo)

Bilobalide (20 mg/kg) completely suppresses the NMDA-induced release of choline in vivo while basal choline levels were not significantly affected. NMDA causes a release of choline in vivo when infused into the hippocampus of freely moving rats by retrograde dialysis. Bilobalide (20 mg/kg i.p.) completely inhibits the effect induced by NMDA[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Male Wistar rats (250-350 g)[1]
Dosage: 20 mg/kg
Administration: I.p. injection 60 min before NMDA infusion
Result: Lowered basal choline efflux only slightly (by 7%) but fully antagonized the NMDA-induced increase of choline release. The convulsive effect of NMDA was almost completely suppressed.

分子量

326.30

Formula

C15H18O8
CAS 号

33570-04-6
中文名称

白果内酯
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : ≥ 100 mg/mL (306.47 mM)

* “≥” means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.0647 mL 15.3233 mL 30.6466 mL
5 mM 0.6129 mL 3.0647 mL 6.1293 mL
10 mM 0.3065 mL 1.5323 mL 3.0647 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°C, 6 months; -20°C, 1 month。-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。

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: ≥ 2.08 mg/mL (6.37 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (6.37 mM，饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例，取 100 μL 20.8 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-CD in saline)

    Solubility: ≥ 2.08 mg/mL (6.37 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (6.37 mM，饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例，取 100 μL 20.8 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。

    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: ≥ 2.08 mg/mL (6.37 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (6.37 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 20.8 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 Shanghai Jinpan Biotech Co Ltd 网站选购。
参考文献

  • [1]. O Weichel, et al. Bilobalide, a constituent of Ginkgo biloba, inhibits NMDA-induced phospholipase A2 activation and phospholipid breakdown in rat hippocampus. Naunyn Schmiedebergs Arch Pharmacol. 1999 Dec;360(6):609-15.

    [2]. Chun Shi, et al. Bilobalide prevents apoptosis through activation of the PI3K/Akt pathway in SH-SY5Y cells. Apoptosis. 2010 Jun;15(6):715-27.