(-)-Epigallocatechin Gallate-d3/d4
(Synonyms: EGCG-d3/d4) 目录号 : GC40218
An internal standard for the quantification of (–)-epigallocatechin gallate
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
(-)-Epigallocatechin gallate-d3/d4 is intended for use as an internal standard for the quantification of (-)-epigallocatechin gallate by GC- or LC-MS. (-)-Epigallocatechin gallate (EGCG) is a phenol that has been found in a variety of plants including green and black tea plants and has diverse biological activities. It is lytic against T. cruzi amastigotes, with a 50% bactericidal concentration (MBC50) value of 0.53 pM. It decreases oxidation of deoxyguanosine and tyrosine nitration (IC50s = 0.25 and 0.11 mM, respectively) and inhibits macrophage-mediated LDL oxidation in vitro. EGCG increases LDL receptor binding activity and lowers cholesterol levels in HepG2 cells via increased cholesterol efflux. EGCG inhibits heregulin-β1-induced activation of ErbB2 and ErbB3 as well as migration and invasion of MCF-7 breast cancer cells. In vivo, EGCG reduces food intake and body weight, serum levels of insulin, leptin, testosterone, and growth hormone, and the size of the ventral prostate, testis, liver, and spleen in male Sprague Dawley, lean Zucker, and obese Zucker rats when administered at doses of 82, 81, and 92 mg/kg, respectively.
| Cas No. | SDF | ||
| 别名 | EGCG-d3/d4 | ||
| 分子式 | C22H15D3O11 (for d3) | 分子量 | 461.4 |
| 溶解度 | DMSO: Slightly Soluble,Methanol: Slightly Soluble | 储存条件 | Store at -20°C |
| General tips | 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 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.1673 mL | 10.8366 mL | 21.6732 mL |
| 5 mM | 0.4335 mL | 2.1673 mL | 4.3346 mL |
| 10 mM | 0.2167 mL | 1.0837 mL | 2.1673 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
[Research on EGCG improving the degenerative changes of the brain in AD model mice induced with chemical drugs]
Zhong Yao Cai 2012 Oct;35(10):1641-4.PMID:23627134doi
Objective: To study the effect and mechanism of (-)-Epigallocatechin-3-gallate (EGCG) on the degeneretive changes of the brain in Alzheimer's disease (AD) model mice induced with chemical drugs. Methods: AD model mice were established by subcutaneously injecting with 3% D-gal at the dose of 150 mg/kg body weight once daily for 6 weeks. From the third week, the mice of D-gal + V(E) 280 U/kg group, D-gal + EGCG 2 mg/(kg x d) group and D-gal + EGCG 6 mg/(kg x d) group were intragastricly given with 5.6% V(E) at the dose of 280 IU/kg and EGCG at the dose of 2 mg/kg x d or 6 mg/kg x d respectively after injection of D-gal. The mice of control group, D-gal + dd H2O group and D-gal + oil group were administered with same volume vehicle distilled water and soybean oil respectively. The pathological changes of the brain in AD model mice were observed by HE staining analysis, the immunohistochemical analysis of beta-amyloid (Abeta) and evaluating the expression of amyloid precursor protein (APP) in the hippocampus of mice by Western blot analysis. Results: EGCG 2 mg/(kg x d) or 6 mg/(kg x d) 4 weeks, ig evidently released neuronal injury in the hippocampus of the AD mice induced by D-gal, and significantly reduced the express of Abeta and APP in the hippocampus of AD model mice induced by D-gal (P < 0.01). Conclusion: EGCG has a protective effect on AD model mice induced by D-gal by decreasing the expression of APP and beta-Amyloid in the hippocampus of mice.