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Changes in the Dimensions of the Nuclei of Neurones with Activity

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Abstract

HYDEN1 has summarized the evidence relating changes in cytoplasmic and nuclear constituents of the neurone to growth and activity of the cell. We have found an increase in Feulgen staining in the neurone nuclei of both the granular and molecular layers of the mouse cerebellum, following convulsions produced by ‘Picrotoxin’ and ‘Metrazol’, as well as after a fall2. The deoxyribonucleic acid content, measured by the specific absorptiometric technique3, however, remained unchanged following a ‘Picrotoxin’ convulsion. These two findings suggested that an explanation of the apparent increase in Feulgen staining might be found in a contraction of the nuclei.

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References

  1. Hyden, H., Acta Physiol. Scand., Supp., 17 (1943).

  2. Chance, M. R. A., J. Exp. Biol., 30, No. 4, 468 (1953). Chance, M. R. A., and Walker, A. P., J. Endocrin., 10, 316 (1954).

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  3. Deeley, E. M., Richards, B. M., Walker, P. M., and Davies, H. G., Exp. Cell Research, 6, 569 (1954).

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  4. Chance, M. R. A., and Yaxley, D. C., J. Exp. Biol., 27, 311 (1950).

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Authors and Affiliations

  1. Departments of Pharmacology and Medical Statistics, University of Birmingham, Birmingham, 15

    M. R. A. CHANCE, A. J. LUCAS & J. A. H. WATERHOUSE

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  1. M. R. A. CHANCE
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  2. A. J. LUCAS
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  3. J. A. H. WATERHOUSE
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CHANCE, M., LUCAS, A. & WATERHOUSE, J. Changes in the Dimensions of the Nuclei of Neurones with Activity. Nature 177, 1081–1082 (1956). https://doi.org/10.1038/1771081a0

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