neuroepithelial - Synonyms of neuroepithelial | Antonyms of neuroepithelial | Definition of neuroepithelial | Example of neuroepithelial | Word Synonyms API

Article	Example
Neuroepithelial cell	Neuroepithelial cells are a class of stem cell and have similar characteristics, most notably the ability to self renew. During the formation of the neural tube, neuroepithelial cells undergo symmetric proliferative divisions that give rise to two new neuroepithelial cells. At a later stage of brain development, neuroepithelial cells begin to self renew and give rise to non-stem cell progenitors, such as radial glial cells simultaneously by undergoing asymmetric division. Expression of Tis21, an antiproliferative gene, causes the neuroepithelial cell to make the switch from proliferative division to neuronic division. Many of the neuroepithelial cells also divide into radial glial cells, a similar, but more fate restricted cell. Being a more fate restricted cell the radial glial cell will either generate postmitotic neurons, intermediate progenitor cells, or astrocytes in gliogenesis. During neuroepithelial cell division, interkinetic nuclear migration allows the cells to divide unrestricted while maintaining a dense packing. During G1 the cell nucleus migrates to the basal side of the cell and remains there for S phase and migrates to the apical side for G2 phase. This migration requires the help of microtubules and actin filaments.
Neuroepithelial cell	Neuroepithelial cells give rise to radial glial cells early on during embryonic development. To make the switch, neuroepithelial cells begin downregulating their epithelial features. During neurulation neuroepithelial cells stop expressing occludin, a tight junction protein. Loss of occludin causes a loss of the previous tight junction seal which is required for the generation of nonepithelial cells such as neurons. Another tight junction protein, PAR3, remains at the apical side of the cell co-localizing with N-cadherin and keeps the apical face of the neuroepithelial cell intact. In the absence of occludin some polarity is still lost and the neuroepithelial cell gives rise to the radial glial cell.
Neuroepithelial cell	Neurogenesis in the adult brain is often associated with diseases that deteriorate the CNS, like Huntington's disease, Alzheimer's disease, and Parkinson's disease. While adult neurogenesis is up-regulated in the hippocampus in patients with these diseases, whether its effects are regenerative or inconclusive remains to be seen. Individuals with these diseases also often express diminished olfactory abilities as well as decreased cognitive activity in the hippocampus, areas specific to neurogenesis. The genes associated with these diseases like α-synuclein, presenilin 1, MAPT (microtubule associated protein tau) and huntingtin are also often associated with plasticity in the brain and its modification. Neuroplasticity is associated with neurogenesis in a complementary fashion. The new neurons generated by the neuroepithelial cells, progenitors and radial glial cells will not survive unless they are able to integrate into the system by making connections with new neighbors. This also leads to many controversial concepts, like neurogenic therapy involving the transplant of local progenitor cells to a damaged area.
Neuroepithelial cell	Neuroepithelial cysts, also known as colloid cysts, develop in individuals between the ages of 20 and 50 and is relatively rare in individuals under the age of twenty. The cysts are benign tumors that usually appear in the anterior third ventricle. The cysts occur in the epithelium putting their patients at risk for obstructive hydrocephalus, increased intracranial pressure, and rarely intracystic hemorrhage. This results from the cysts enlarging by causing the epithelium to secrete additional mucinous fluid. The cysts are usually found incidentally or if patients become symptomatic presenting with the symptoms of hydrocephalus. The larger cysts are operated on while smaller cysts that are not obstructive can be left alone.
Neuroepithelial cell	Oligodendroglial tumors manifest in glial cells, which are responsible for supporting and protecting nerve cells in the brain. The tumor develops over oligodendrocytes and is usually found in the cerebrum around the frontal or temporal lobes. The tumors can either grow slowly in a well-differentiated manner delaying the onset of symptoms, or they can grow rapidly to form an anaplastic oligodendroglioma. The symptoms for this type of tumor include headaches and visual problems. Additionally, blockage of ventricles could cause buildup of cerebral spinal fluid resulting in swelling around the tumor. The location of the tumor may also affect the symptoms since frontal lobe tumors can cause gradual mood or personality changes while temporal lobe tumors result in coordination and speech problems.