Higher expression of α7 nicotinic acetylcholine receptors in human fetal compared to adult brain

被引：33

作者：

Falk, L

Nordberg, A

Seiger, Å

Kjældgaard, A

Hellström-Lindahl, E ^{[1
]}

机构：

[1] Huddinge Univ Hosp, Neurotec Dept, Div Mol Neuropharmacol, S-14186 Huddinge, Sweden

[2] Huddinge Univ Hosp, Karolinska Inst, Neurotec Dept, Div Expt Geriat, S-14186 Huddinge, Sweden

[3] Huddinge Univ Hosp, Karolinska Inst, Dept Clin Sci, Div Obstet & Gynecol, S-14186 Huddinge, Sweden

来源：

DEVELOPMENTAL BRAIN RESEARCH | 2003年 / 142卷 / 02期

关键词：

alpha 7 nicotinic acetylcholine receptor; alpha-bungarotoxin; alpha; 7; mRNA; development; human fetal brain;

D O I：

10.1016/S0165-3806(03)00063-4

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Neuronal nicotinic acetylcholine receptors are thought to be involved in regulation of several processes during neurogenesis of the brain. In this study the expression of the alpha7 nicotinic acetylcholine receptor subtype was investigated in human fetal (9-11 weeks of gestation), middle-aged (28-51 years) and aged (68-94 years) medulla oblongata, pons, frontal cortex, and cerebellum. The specific binding of the alpha7 receptor antagonist [I-125](alpha-bungarotoxin was significantly higher in fetal than in both middle-aged and aged medulla oblongata and aged pons. No significant decrease in [I-125] (alpha-bungarotoxin binding sites was observed from fetal to adult cortex and cerebellum. The alpha7 mRNA expression was significantly higher in all fetal brain regions investigated, except for aged cortex, than in corresponding middle-aged and aged tissue. The high expression of alpha7 nicotinic acetylcholine receptors in fetal compared to adult brain supports the view that these receptors play an important role during brain development. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：151 / 160

页数：10

共 55 条

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