Evaluation of cholinergic markers in Alzheimer's disease and in a model of cholinergic deficit

被引：65

作者：

Gil-Bea, FJ ^{[1
]}

García-Alloza, M ^{[1
]}

Domínguez, J ^{[1
]}

Marcos, B ^{[1
]}

Ramírez, MJ ^{[1
]}

机构：

[1] Univ Navarra, Sch Med, CIMA, Ctr Appl Med Res,Dept Pharmacol,Lab Neuropharmaco, Pamplona 31008, Spain

来源：

NEUROSCIENCE LETTERS | 2005年 / 375卷 / 01期

关键词：

acetylcholine (ACh); acetyleholinesterase (AChE); cholinacetyltransferase (ChAT); human; cognitive deficit; rat;

D O I：

10.1016/j.neulet.2004.10.062

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Cognitive deficits in neuropsychiatric disorders, such as Alzheimer's disease (AD), have been closely related to cholinergic deficits. We have compared different markers of cholinergic function to assess the best biomarker of cognitive deficits associated to cholinergic hypoactivity. In post-mortem frontal cortex from AD patients, acetylcholine (ACh) levels, cholinacetyltransferase (ChAT) and acetylcholinesterase (AChE) activity were all reduced compared to controls. Both ChAT and AChE activity showed a significant correlation with cognitive deficits. In the frontal cortex of rats with a selective cholinergic lesion, all cholinergic parameters measured (ACh levels, ChAT and AChE activities, "in vitro" and "in vivo" basal ACh release) were significantly reduced. AChE activity was associated to ChAT activity, and even more, to "in vivo" and "in vitro" basal ACh release. Quantification of AChE activity is performed by an easy and cheap method and therefore, these results suggest that determination of AChE activity may be used as an effective first step method to evaluate cholinergic deficits. (C) 2004 Elsevier Ireland Ltd. All rights reserved.

引用

页码：37 / 41

页数：5

共 38 条

[1] Does the release of acetylcholine in septal slices originate from intrinsic cholinergic neurons bearing p75NTR receptors?: A study using 192 IgG-saporin lesions in rats [J].