Pituicytes, which were specialized glocytes of the posterior pituitary, had five ultrastructural variants: major cells, dark cells, granular cells,
ependymal cells, and oncocytic cells.[sup][4] Among the five ultrastructural variants, granular pituicytes were observed in neurohypophysis at a high incidence and had similar histological features to GCT.[sup][5] In addition, thyroid transcription factor-1 (TTF-1) expression in nontumorous pituicytes, pituicytoma, and GCT of neurohypophysis indicated a common pituicyte lineage.[sup][5] Therefore, GCT of neurohypophysis was identified to arise from granular pituicytes.
In premature babies, MBL could promote the contact guidance of neuronal migration, interneuronal recognition, formation of bridges between migrating neurons and radial astrocytes fibers, myelinization, and tightening of the
ependymal cell barrier, during the ontogenic development of the brain.
Vasospasm of choroidal artery probably originates HCP through stenosing the aqueduct and impairing
ependymal cells after SAH [8].
TrxmRNA has been localized also in epithelial cells of the choroid plexus and the
ependymal cells of the ventricle and the secreting cells of the choroid plexus [25, 28].
When neural stem cells are harvested for growth in culture, however, the
ependymal cells are not removed along with them, and this can be a problem.
The scientists found that neighbouring "epithelial-like"
ependymal cells - not stem cells themselves - maintain a special structure that keeps neural stem cells "neurogenic," able to make new neurons.
The roof plate of the diencephalon appeared thin, formed of a single layer of
ependymal cells covered by vascular mesenchyme.
Ependymal cells of chordate larvae are stem-like cells that form the adult nervous system.
Enlargement of arachnoid cysts can be caused by fluid secretion from
ependymal cells, fluid ingress secondary to an osmotic gradient, trapping of fluid by a ball/valve mechanism, (3) and strenuous venous pulsation produced during Valsalva manoeuvres.
The histological exam of the surgical specimen documented neural tissue with
ependymal cells, macrophages, and cells of germ line without neoplastic elements.
Recently, MCT4 has been shown to localize to the membrane of glial cells in the cerebellum [14] and the paraventricular nucleus, specifically in astrocytes and ciliated
ependymal cells, playing a significant nonmetabolic role in the neuroprotective mechanism of ischemic preconditioning (IPC) in the gerbil with transient cerebral ischemia [28].
Identity crisis for adult periventricular neural stem cells: subventricular zone astrocytes,
ependymal cells or both?