Finn A. Geneser-Jensen

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1. The distribution of acetyl cholinesterase (AChE) has been described in the dentate area, a part of the hippocampal region, in the adult guinea pig. The enzyme was demonstrated histochemically with a modification of the Koelle thiocholine method applied to formaldehyde-fixed frozen sections and unfixed cryostat sections. Non-specific cholinesterase was(More)
1. The distribution of aspartate aminotransferase (Asp-AT) has been examined in four parts of the hippocampal region of adult guinea pig: The entorhinal area, parasubiculum, presubiculum, and subiculum. Cryostat sections fixed very briefly in glutaraldehyde were incubated for Asp-AT essentially according to Lee. 2. All of the four areas studied exhibited(More)
The boundary line dividing the entorhinal area into a pars medialis and a pars lateralis has been determined in adult guinea pig by comparison of graphic maps of the distribution of heavy metals and of the terminal field of a presubiculum → entorhinal area projection. The virtual coincidence of the histochemically and hodologically based subdivisions(More)
1. The distribution of monoamine oxidase (MAO) in the hippocampal region of the rat has been studied in cryostat sections with the tryptamine-tetrazolium method of Glenner et al. 2. The staining pattern was rather diffuse as compared with the distribution of MAO in the guinea pig and of other enzymes in the rat hippocampal region. 3. However, there were(More)
A study of the amygdala of the guinea pig was carried out on material stained by the Nissl, acetylcholinesterase (AChE) and monoamine oxidase (MAO) methods. The material stained for Nissl substance was used primarily as a reference in determining the distribution of the two enzymes. Regional differences in cell size and/or distribution were noted within the(More)
1. The distribution of monoamine oxidase (MAO) within the dentate area, a part of the hippocampal region, has been described for the adult guinea pig. 2. The histochemical demonstration of the enzyme was done essentially according to the tryptamine-tetrazolium method of Glenner et al., and the staining reactivity was controlled by complete inhibition with(More)
With the present modification of Timm's sulfide silver method all parts of the hippocampal region show a distinctly stratified staining pattern, suggesting large regional differences in the content of heavy metals. The stain is largely confined to distinct grains, partly associated with neuronal somata and partly dispersed in the neuropil. Work in progress(More)
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