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Verteilung von darmkontrahierenden Peptiden im menschlichen Gehirn

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Summary

Substance P preparations (SP) were made from 10 regions containing grey matter from human brains and by means of aluminium oxide chromatography divided into the active fractions Fa, Fb, and Fc. Fa and Fb were found in all brain parts, but Fc only in cortical tissues.

One brain was divided into cortex and subcortex. Two SP preparations were made from both parts and analyzed by sephadex G-25 and aluminium oxide chromatography. Both methods yielded Fc only from cortical material. Possible Fc concentrations in subcortex which are too low to be detected can at most amount to 1/40 of the cortical concentration.

Gut-contracting acidic peptides which were not identical with Fc were found in addition to Fa and Fb in the red nucleus, amygdala, and hypothalamus.

Fc can be considered a cortex-specific peptide present only in intracortical structures.

Zusammenfassung

Substanz P-Präparate (SP) aus zehn Arealen grauer Substanz des menschlichen Gehirns wurden an Aluminiumoxidsäulen chromatographiert und dabei in die Fraktionen Fa, Fb und Fc aufgetrennt. Während Fa und Fb in allen untersuchten Bezirken nachzuweisen waren, wurde Fc nur in den corticalen Arealen gefunden.

Ein Gehirn wurde in Cortex und Subcortex getrennt, daraus zwei SP-Präparate hergestellt und an Sephadex G-25 sowie Aluminiumoxid chromatographiert. Mit beiden Methoden konnte Fc nur im Cortex gefunden werden. Die vielleicht unter der Nachweisgrenze liegende subcorticale Fc-Konzentration beträgt höchstens 1/40 der corticalen.

Im Nucleus ruber, Nucleus amygdalae und Hypothalamus fanden sich außer Fa und Fb weitere darmaktive, saure Peptide, die nicht als Fc zu identifizieren waren.

Fc ist als Cortex-spezifisches Peptid aufzufassen, das nur in intracorticalen Strukturen vorkommt.

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Zetler, G., Baldauf, J., Iven, H. (1969). Verteilung von darmkontrahierenden Peptiden im menschlichen Gehirn. In: Habermann, E., et al. Naunyn Schmiedebergs Archiv für Pharmakologie. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-39718-3_36

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  • DOI: https://doi.org/10.1007/978-3-662-39718-3_36

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-38809-9

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