Publication: Morphological changes in the
mink area postrema during growth
and under different stages of sexual activity
Authors
Aleman, N. ; Cerutti, P. ; Guerrero, F.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
The histological features of the area
postrema (AP) of mink brains of both sexes were
investigated at different ages and physiological
conditions with light and electron microscopy. The mink
AP was a twin-winged structure located at the dorsal
surface of the medulla oblongata and consisted of
neurons, glial cells, and both continuous and fenestrated
capillaries enmeshed in a rich neuropil. The ventricular
surface of the mink AP was covered by a single layer of
tanycytes except at its most caudal part that was covered
by a basal membrane derived from the pia mater.
Supraependymal cells and intraventricular axons were
also a common finding over the apical poles of
tanycytes. However, our study demonstrates that the
mink AP acquires the above general features at an
advanced postnatal time and that, once fully developed,
it undergoes morphological changes that can be directly
linked to the aging process and sexual activity of the
animals.
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