Abstract

Taurine, a putative neurotransmitter, cysteinyl sulphinlic acid α-ketogluraric acid transaminase (CSA-T) and cysteinyl sulphinlic acid decarboxylase (CSA-D) were measured in the different structures of the rat olfactory bulb and olfactory nucleus. It appears there are significant differences between the level of taurine in internal layers (mitral cells, plexiform) and external layer such as fibrorum. The CSA-T and CSA-D activities followed approximately the distribution of taurine in the different areas of the rat olfactory bulb and nucleus. A very high activity of CSA-T was present in all areas studied and a role for the enzyme is proposed. The cellular distribution of CSA-T, CSA-D and taurine is compared with the distribution in retina.

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