Estradiol(β-Estradiol)

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CAS NO:	50-28-2
规格:	≥98%

包装与价格：

包装	价格(元)
100mg	询价
250mg	询价
500mg	询价
1g	询价
2g	询价
5g	询价
10g	询价
50g	询价

Estradiol (Oestradiol; Estrace; Dihydrofolliculin; β-Estradiol; 17β-estradiol, β-Estradiol; E2; 17β-Oestradiol), the 17-beta-isomer of estradiol, is an endogenous/naturally occuring estrogen steroid hormone and a primary female sex hormone that is involved in the regulation of the estrous and menstrual female reproductive cycles.

理化性质和储存条件

Molecular Weight (MW)	272.38
Formula	C18H24O2
CAS No.	50-28-2
Storage	-20℃ for 3 years in powder form
Storage	-80℃ for 2 years in solvent
Solubility (In vitro)	DMSO: 54 mg/mL (198.3 mM)
	Water: <1 mg/mL
	Ethanol: 5 mg/mL (18.4 mM)
Other info	Chemical Name: (8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol InChi Key: VOXZDWNPVJITMN-ZBRFXRBCSA-N InChi Code: InChI=1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17+,18+/m1/s1 SMILES Code: C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CCC4=C3C=CC(=C4)O
Synonyms	Oestradiol; Estrace; Dihydrofolliculin; β-Estradiol; Beta-Estradiol; 17beta-Estradiol; Estradiol; 17β-Oestradiol

实验参考方法

In Vitro	In vitro activity: Estradiol induces new dendritic spines and synapses on hippocampal CA1 pyramidal cells. Estradiol treatment resulted in a 46% increase in NMDA receptor binding. Estradiol treatment increases NMDA receptor binding in parallel with dendritic spine and synapse density. Estradiol treatment results in increased sensitivity of CA1 pyramidal cells to NMDA receptor-mediated synaptic input and that this increase is well correlated with the estradiol-induced increase in dendritic spine density in the apical dendritic tree of these cells. 17 beta-estradiol is found to reduce Ba2+ entry reversibly via Ca2+ channels in acutely dissociated and cultured neostriatal neurons. 17 alpha-Estradiol also reduces Ba2+ currents but is significantly less effective than 17 beta-estradiol in rat neostriatal neurons. 17 beta-estradiol exerts a dose-dependent inhibition of IL-1-, TNF-, and IL-1 and TNF-induced production of bioassayable IL-6. Estradiol inhibits both TNF-induced IL-6 production and osteoclast development in primary bone cell cultures derived from neonatal murine calvaria. Cell Assay: With treatment of estradiol, ERβ-specific effects on gene expression have been investigated in three different cell lines lacking expression of endogenous ERα and ERβ, namely U2OS (25), HEK293 (26), and　Hs578T (23) cells. 17 genes of the 76 ERβ-regulated genes were commonly regulated by both ERα and ERβ, suggesting that the transcriptional effects of estradiol via ERα or ERβ are largely distinct in U2OS cells. 95 and 61 genes were identified as ERβ-regulated genes in Hs578T cells and HEK293 cells in a 24-h estradiol treatment, respectively. Only three genes (PTGER4, ENPP2, and DKK1)　commonly regulated in both HEK293 and Hs578T cells, suggesting that ERβ evokes distinct gene responses in different　types of target cells. By using estradiol, new roles of ERβ signaling was established, including protective functions in the epithelial-mesenchymal transition,as well as regulation of cell proliferation in the colon.
In Vivo	Estradiol mediates fluctuation in hippocampal synapse density during the estrous cycle in the adult rat. Estradiol alone can reverse the ovariectomy-induced decrease in spine density. Estradiol combined with Progesterone initially increases spine density for a period of 2 to 6 hours but then results in a much sharper decrease than is observed following estradiol alone.
Animal model	Rats
Formulation & Dosage
References	J Neurosci. 1997 Mar 1;17(5):1848-59; J Neurosci. 1992 Jul;12(7):2549-54.