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Eur J Neurosci. 1994 Feb 1;6(2):211-7.

Expression of soluble guanylyl cyclase gene in adult rat brain.

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1
Neuromorphologisches Labor, Universit├Ąt Bern, Switzerland.

Abstract

The synthesis of the intracellular messenger, cyclic GMP, is catalysed by particular or soluble guanylyl cyclase (sGCY). sGCY is activated by nitric oxide, a compound with putative neurotransmitter functions, especially in long-term potentiation. Hybridization histochemistry with a probe complementary to the rat lung large (alpha 1) subunit was used to assess the exact localization of sGCY mRNA in the rat brain. Many cells in the olfactory bulb contained sGCY mRNA. In the whole cerebral cortex, sGCY mRNA was found in all layers, with a predominance in layers II-III. A similar pattern was found in the olfactory tuberculum, in continuation with the piriform cortex and the cortical amygdaloid nucleus. All parts of the striatum expressed sGCY mRNA. sGCY mRNA was also found in the habenula medialis, in the pinealis in some diencephalic nuclei, and in the granule cell layers of the cerebellum. This study provides a description of the normal anatomy of sGCY gene expression in the rat forebrain as a basis for the study of the modulation of expression after physiological and pharmacological manipulations.

[Indexed for MEDLINE]

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