您好，欢迎来到半岛电竞官方网址 ！ [ 登录] [ 免费注册]
半岛电竞官方网址
发布求购
位置： 首页> 半岛bd体育手机客户端 库> L-Theanine
立即咨询
咨询类型：
*姓名：
*电话：
*单位：
Email：
*留言内容：
请详细说明您的需求。
*验证码：
L-Theanine
本半岛bd体育手机客户端 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。
L-Theanine图片
CAS NO: 3081-61-6
包装与价格：
包装 价格(元)
10 mM * 1 mL in Water 电议
100mg 电议
200mg 电议
500mg 电议
1 g 电议

半岛bd体育手机客户端 名称
L-茶氨酸
L-Glutamic Acid γ-ethyl amide
Nγ-Ethyl-L-glutamine
半岛bd体育手机客户端 介绍
L-Theanine (L-Glutamic Acid γ-ethyl amide) 是一种存在绿茶叶片中的非蛋白氨基酸物质，能阻断大脑中谷氨酸与谷氨酸受体结合，具有神经保护、抗癌和抗氧化活性。L-Theanine 能透过血脑屏障，具有口服活性。
生物活性

L-Theanine (L-Glutamic Acid γ-ethyl amide) is a non-protein amino acid contained in green tea leaves, which blocks the binding of L-glutamic acid to glutamate receptors in the brain, and with neuroprotective, anticancer and anti-oxidative activities. L-Theanine can pass through the blood–brain barrier and is orally active[1][2][3].
体外研究
(In Vitro)

L-Theanine (L-Glutamic Acid γ-ethyl amide) inhibits the incorporation of extracellular glutamine into neurons, resulting in the suppression of exocytotic release of glutamate[3].
L-Theanine (500 μM; 72 h) protects against excessDopamine(HY-B0451)-induced neuronal death in presence of astrocytes and increases glutathione level in astrocytes[3].
L-Theanine (0-5 mM; 72 h) is involved in glutathione synthesis[3].
L-Theanine (0.1-5 mM; 24 h) dose-dependently inhibits the viability of melanoma but not normal epidermal melanocytes[4].
L-Theanine (1-5 mM; 24 h) arrests cell cycle at G0/G1 phase, suppresses cell migration, induces apoptosis in A375 cells[4].
L-Theanine (1-5 mM; 24 h) also affects the proliferation, migration, and apoptosis of B16–F10 melanoma cells[4].
L-Theanine shows protective effect on cadmium-induced apoptosis in PC12 cells by inhibiting the mitochondria-mediated pathway and decreased ROS production[5].

Cell Proliferation Assay[4]

Cell Line: A375 and PIG1 cells
Concentration: 0.1, 0.5, 1, 2 and 5 mM
Incubation Time: 24 h
Result: Dose-dependently decreased the viability of A375, but not PIG1 cells.

Cell Cycle Analysis[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Led to a dose dependent accumulation of A375 cells in G0/G1 phase and prevented cells from entering the S phase.

Western Blot Analysis[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Remarkably reduced the expression of proliferating cell nuclear antigen (PCNA), decreased protein levels of cyclinD1, cyclinE1, and cyclin-dependent protein kinase (CDK2 and CDK4). Potentiated the expression of cyclin-dependent kinase inhibitor 1A (CDKN1A, p21).
Dose-dependently increased the levels of apoptosis-promoting proteins including BAX and cleaved-caspase3 and decreased the level of antiapoptotic protein BCL-2.
Concentration dependently reduced the protein levels of ICAM-1, VCAM-1, MMP9, and MMP2.
Dose-dependently increased the p53 expression.

Cell Migration Assay[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Apparently suppressed the migration.

Apoptosis Analysis[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Showed pro-apoptotic effect.

RT-PCR[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Markedly elevated the mRNA levels ofBmal1,Clock,Rora, andRev-erbβ.
体内研究
(In Vivo)

L-Theanine (4.0 mg/kg; p.o.; daily for 14 days) upregulates glutathione contents in striata of normal mice[3].

Animal Model: Healthy male ICR mice weighing 32–34 g[3]
Dosage: 4.0 mg/kg
Administration: Oral administration, daily for 14 days
Result: Significantly increased glutathione content in the striatum, but not in the midbrain.
Clinical Trial
分子量

174.20
性状

Solid
Formula

C7H14N2O3
CAS 号

3081-61-6
中文名称

L-茶氨酸；茶氨酸
结构分类
  • Amino acids
来源
  • Plants
  • Theaceae
  • Camellia sinensis(L.) O. Ktze.
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
溶解性数据
In Vitro:

H2O : 150 mg/mL(861.08 mM;Need ultrasonic)

配制储备液
浓度溶剂体积质量 1 mg 5 mg 10 mg
1 mM 5.7405 mL 28.7026 mL 57.4053 mL
5 mM 1.1481 mL 5.7405 mL 11.4811 mL
10 mM 0.5741 mL 2.8703 mL 5.7405 mL
*

请根据半岛bd体育手机客户端 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半岛bd体育手机客户端 失效。
储备液的保存方式和期限：-80℃, 6 months; -20℃, 1 month (sealed storage, away from moisture)。-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： PBS

    Solubility: 100 mg/mL (574.05 mM); Clear solution; Need ultrasonic

* 以上所有助溶剂都可在本网站选购。
Baidu
map