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Digitale Medien

Functional changes of the neuronal and glial elements at the surface of the external layer of the median eminence (1974)

Wittkowski, Werner ; Scheuer, Albert

Springer

Anatomy and embryology 143 (1974), S. 255-262

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Details

ISSN: 1432-0568

Schlagwort(e): Median eminence ; Neuro-vascular contacts ; Rat

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Summary The vascular surface of the external layer of the median eminence is composed of neuronal and glial processes. Neuro-vascular contacts are supposed to be necessary for the release of hypophysiotropic neurohormones. The present study confirms the hypothesis that the relative extent of neuro-vascular and glio-vascular contacts varies under different functional conditions of the tubero-hypophysial system. Morphometric analysis shows that in normal rats about 20% of the surface is lined by neuro-vascular contacts. After bilateral adrenalectomy the neuro-vascular contacts are enlarged to 40% whereas application of an extract of stalk-median eminence tissue is followed by a decrease of the neuro-vascular contacts to 15%. The implications of these results are discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00519869

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