Galanin in the hippocampal formation of female rats effects of 17β-estradiol

被引：4
|
作者：
Hilke, S [1 ]
Theodorsson, A
Rugarn, O
Hökfelt, T
Theodorsson, E
机构：
[1] Linkoping Univ Hosp, Fac Hlth Sci, Dept Biomed & Surg, Div Clin Chem, SE-58182 Linkoping, Sweden
[2] Karolinska Inst, Dept Neurosci, SE-17177 Stockholm, Sweden
来源：
NEUROPEPTIDES | 2005年 / 39卷 / 03期
关键词：
estrogen receptors; radioimmunoassay; microdialysis; immunohistochemistry; in situ hybridization;
D O I：
10.1016/j.npep.2005.01.002
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
17 beta-Estradiol induced an increase in tissue concentrations of galanin in the hippocampal formation of ovariectomized rats. This increase was dose- and time dependent, and occurred already 60 min after steroid administration and was not blocked by Tamoxifen (R). There was also an increase in galanin in the pro-estrous phase in regularly cycling rats. The estrogen-induced rapid increase may at least in part be due to decreased release of galanin as demonstrated by in vivo microdialysis studies. Thus, sex steroid hormones may influence signalling molecules in brain areas of importance for cognitive functions. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：253 / 257
页数：5
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