The effects of phosphodiesterase inhibition on cyclic GMP and cyclic AMP accumulation in the hippocampus of the rat

被引：93

作者：

van Staveren, WCG ^{[1
]}

Markerink-van Ittersum, M ^{[1
]}

Steinbusch, HWM ^{[1
]}

de Vente, J ^{[1
]}

机构：

[1] Maastricht Univ, Dept Psychiat & Neuropsychol, NL-6200 MD Maastricht, Netherlands

来源：

BRAIN RESEARCH | 2001年 / 888卷 / 02期

关键词：

phosphodiesterase; cGMP; cAMP; hippocampus; nitric oxide; inhibitor;

D O I：

10.1016/S0006-8993(00)03081-X

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The effects of selective and non-selective 3',5'-cyclic nucleotide phosphodiesterase (PDE) inhibitors on cGMP and cAMP accumulation were studied in rat hippocampal slices incubated in vitro. The following PDE inhibitors were used: vinpocetine and calmidazolium (PDE1 selective), erythro-9-(2-hydroxy-3-nonyl)adenine (EHNA, PDE2 selective), SK&F 95654 (PDE3 selective), rolipram (PDE4 selective), SK&F 96231 (PDES selective), the mixed type inhibitors zaprinast and dipyridamole, and the non-selective inhibitors 3-isobutyl-1-metylxanthine (IBMX) and caffeine. cGMP levels were increased in the presence of different concentrations of IBMX, EHNA, dipyridamole, vinpocetine and rolipram. cGMP immunocytochemistry showed that incubation with different inhibitors in the presence and/or absence of sodium nitroprusside resulted in pronounced differences in the extent and regional localization of the cGMP response and indicate that PDE activity in the hippocampus is high and diverse in nature. The results suggest an interaction between cGMP and cAMP signalling pathways in astrocytes of the rat hippocampus. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：275 / 286

页数：12

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