OrganRegen-Estradiol（C502820）

发表于由

Estradiol

货号：C502820

规格：1g

品牌：OrganRegen

产品介绍

DESCRIPTION

Background

Estradiol is a steroid sex hormone vital to the maintenance of fertility and secondary sexual characteristics in females. Estradiol upregulates IL-6 expression through the estrogen receptor β (ERβ) pathway[1][2][3].

技术参数

Alias

β-Estradiol; E2; 17β-Estradiol; 17β-Oestradiol雌二醇；强力求偶素

M. W t

272.38

Formula

C18H24O2

CAS No

50-28-2

Storage

Powder

-20°C

3 years

4°C

2 years

In solvent

-80°C

6 months                                   

-20°C

1 month

Solubility

DMSO      

≥ 100 mg/mL(283.71 mM)

Ethanol

14 mg/mL(51.40 mM)

H2O

< 0.1 mg/mL(insoluble)

BIOLOGICAL ALTIVITY

In Vitro   

Estradiol causes new dendritic spines and synapses in hippocampal CA1 pyramidal cells. Estradiol increases NMDA receptor binding by 46% in parallel with dendritic spine and synapse density. Estradiol also elevates sensitivity of CA1 pyramidal cells to NMDA receptor-mediated synaptic input and such an effect is correlated with the estradiol-induced increase in dendritic spine density in the apical dendritic tree of these cells[1]. Estradiol reduces Ba2+ entry reversibly via Ca2+ channels in acutely dissociated and cultured neostriatal neurons. Estradiol also reduces Ba2+ currents but is significantly less effective than Estradiol in rat neostriatal neurons[2].

In Vivo  

Estradiol functions in hippocampal synapse density during the estrous cycle in the adult rat[4].Estradiol reverses the ovariectomy-induced decrease in spine density. Estradiol in combination with progesterone enhances spine density for 2 to 6 h but decreases following estradiol alone[5].Estradiol (0.2 mg/kg; i.p.; C57BL/6 female mice) plus 10 or 20 mg/kg progesterone, enhances memory consolidation in young ovariectomized mice[6].

REFERENCES

[1]. Förster C, et al. Differential effects of hydrocortisone and TNFalpha on tight junction proteins in an in vitro model of the human blood-brain barrier. J Physiol. 2008 Apr 1;586(7):1937-49.

[2]. Bellinghausen I, et al. Inhibition of human allergic T-cell responses by IL-10-treated dendritic cells: differences from hydrocortisone-treated dendritic cells. J Allergy Clin Immunol. 2001 Aug;108(2):242-9.

[3]. Chappell D, et al. Hydrocortisone preserves the vascular barrier by protecting the endothelial glycocalyx. Anesthesiology. 2007 Nov;107(5):776-84.

[4]. Woolley CS, et al. Estradiol mediates fluctuation in hippocampal synapse density during the estrous cycle in the adult rat. J Neurosci. 1992 Jul;12(7):2549-54.

[5]. Woolley CS, et al. Roles of estradiol and progesterone in regulation of hippocampal dendritic spine density during the estrous cycle in the rat. J Comp Neurol. 1993 Oct 8;336(2):293-306.

[6]. Harburger LL, et al. Dose-dependent effects of post-training estradiol plus progesterone treatment on object memory consolidation and hippocampal extracellular signal-regulated kinase activation in young ovariectomized mice. Neuroscience. 2009;160(1):6-12.