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- 详细信息
- 文献和实验
- 技术资料
- 英文名:
Estradiol
- 供应商:
上海研卉生物
- 库存:
大量
- 规格:
25mg
生物活性
| 产品描述 |
Estradiol is an Estrogen. The mechanism of action of estradiol is as an Estrogen Receptor Agonist. |
| 靶点活性 |
ER, |
| 体外活性 |
Estradiol诱导海马CA1锥体细胞产生新的树突棘和突触。Estradiol处理导致CA1区锥体细胞对NMDA受体介导的突触输入的敏感性增加,而这种增加与这些细胞的顶树突树中Estradiol诱导树突棘密度的增加有很好的相关性。在急性分离和培养的纹状体神经元中,17 beta-estradiol可逆地通过钡离子通道抑制钙离子进入。17 alpha-estradiol也减少了钡离子电流,但是明显比17 beta-estradiol对大鼠纹状体神经元的效果较差。17 beta-estradiol剂量依赖性抑制IL-1,TNF-α和IL-1和TNF-α诱导的IL-6的产生。Estradiol抑制新生小鼠颅盖骨来源的原骨细胞培养物中TNF-α诱导的IL-6的产生和破骨细胞的生成。 |
| 体内活性 |
Estradiol可以逆转卵巢切除引发的脊椎密度下降。Estradiol调节成年大鼠发情周期内海马突触密度的波动。 |
| 细胞实验 |
Estradiol is dissolved in 0.01% ethanol. Briefly, B9 cells (5×103/well of a 96-well plate) are cultured with a series of dilutions of the supernatants in a final volume of 100 mL of RPMI 1640, supplemented with 5×10-5mol/Lof 2-mercaptoethanol, 10% FBS, 100 U/mL penicillin, and 100 μg/mL streptomycin in flat-bottom microtiter plates. After 42 h, 0.5 μCi of [3H]thymidine is added. 6 h later, the cells are harvested and the radioactivity incorporated is determined. IL-6 is quantitated from a standard curve set up with known amounts of recombinant human or mouse IL-6. The anti-IL-6 monoclonal antibody completely inhibited the ability of the B9 cells to proliferate in response to recombinant mouse IL-6. In addition, we determined that B9 cells do not proliferate in response to IL-I or TNF, and that antibodies to these two cytokines did not affect the cell proliferation in response to IL-6. Further, it is established that neither Estradiol (17β-estradiol), nor the 0.01% ethanol used as vehicle in these experiments, has any effect on the bioassay. |
| 动物实验 |
动物模型:rats |
化学信息
| 分子量 |
272.38 |
| 分子式 |
C18H24O2 |
| CAS |
50-28-2 |
| 溶解度 |
DMSO: 27.2 mg/mL (100 mM) Ethanol: 20.4 mg/mL (75 mM) ( < 1 mg/ml refers to the product slightly soluble or insoluble ) |
| 储存条件 |
store at -80°C |
| 备注 |
For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. |
配制溶液
| 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.671 ml | 18.357 ml | 36.713 ml |
| 5 mM | 0.734 ml | 3.671 ml | 7.343 ml |
| 10 mM | 0.367 ml | 1.836 ml | 3.671 ml |
| 50 mM | 0.073 ml | 0.367 ml | 0.734 ml |
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文献和实验C18 H24 O2 是一种性激素。有α,β两种类型,α型生理作用强。温特斯坦纳等( Wintersteiner et al. 1935)曾从妊娠马尿中提取出来,此外也可从妊妇尿、人胎盘、猪卵巢等中获得。雄马的精巢或尿中也存在。因为它有很强的性激素作用,所以认为它或它的酯实际上是卵巢分泌的最重要的性激素。雌二醇的苯甲酸酯是决定性激素效价的国际单位的基准物质之一而被采用。
C18 H24 O2 雌甾 -1, 3, 5( 10) -三烯 -3, 17-二醇。系代表性的性激素,可用卵巢、胎盘等制备,在卵泡液、胎盘、妊娠马尿中均可检出。进入子宫上皮细胞后,与性激素受体形成复合体进入细胞核,从而促进新的蛋白质合成,具有引起细胞增殖的作用。此外,能影响未成熟或切除卵巢的大鼠或小鼠的阴道分泌物,使呈现由角化细胞组成的显微镜象,所以也用作生物试验。在生物体内,在 17β -羟甾类脱氢酶的作用下氧化成为雌酮。 17α -羟甾体性激素的作用弱。作为女性
Determination of Serum Estradiol Levels by Radiometric and Chemiluminescent Techniques
The ability to precisely measure circulating levels of hormones is a foundation of modern endocrinology. For assisted reproductive technologies such as in vitro fertilization (IVF), accurate determination of circulating levels of estradiol
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