astrocyte

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Related to Astroglial cell: protoplasmic astrocyte

astrocyte

 [as´tro-sīt]
a neuroglial cell of ectodermal origin, characterized by fibrous or protoplasmic processes; collectively called astroglia or macroglia.
 Astrocyte in association with a blood vessel. From Dorland's, 2000.

as·tro·cyte

(as'trō-sīt),
One of the large neuroglia cells of nervous tissue.
See also: neuroglia.
[G. astron, star, + kytos, hollow (cell)]

astrocyte

/as·tro·cyte/ (as´tro-sīt) a neuroglial cell of ectodermal origin, characterized by fibrous, protoplasmic, or plasmatofibrous processes. Collectively called astroglia.
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Astrocyte in association with a blood vessel.

astrocyte

(ăs′trə-sīt′)
n.
A star-shaped cell, especially a neuroglial cell of nervous tissue.

as′tro·cyt′ic (-sĭt′ĭk) adj.

astrocyte

[as′trōsīt′]
Etymology: Gk, aster + kytos, cell
a large, star-shaped neuroglial cell with many branches, found in certain tissues of the nervous system.
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Astrocyte

as·tro·cyte

(as'trō-sīt, astrŏ-sīt)
One of the large neuroglia cells of nervous tissue.
See also: neuroglia
Synonym(s): astroglia, macroglia.
[G. astēr, star, + kytos, chamber, cell]
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ASTROCYTES

astrocyte

(as'tro-sit?) [ astro- + -cyte, cell]
A common, asterisk-shaped glial cell with many radiating cell processes. Astrocytes are neuroectodermal cells that begin as radial glia that later mature into multipolar cells. Astrocytes are spread homogeneously throughout the central nervous system and each astocyte occupies its own compartment of neuropil. The cell processes of an astrocyte are covered with "leaflets" of cytoplasm that contact axons, synaptic structures, blood vessels, and neighboring glia. Touching astrocytes are electrically coupled and can propagate calcium potentials and within its microdomain of neuropil, each astrocyte regulates the extracellular concentration of certain molecules, including neurotransmitters. In areas of injury, astrocytes can proliferate.
Synonym: astroglial cell See: illustrationastrocytic (as?tro-sit'ik), adjective

Cajal,

Santiago, Spanish histologist and Nobel laureate, 1852-1934.
Cajal astrocyte stain - a method for demonstrating astrocytes by impregnation in a solution containing gold chloride and mercuric chloride.
Cajal cell - Synonym(s): horizontal cell of Cajal
Cajal formol ammonium bromide solution
Cajal gold-sublimate method
Cajal uranium silver method
horizontal cell of Cajal - a small fusiform cell found in the superficial layer of the cerebral cortex with its long axis placed horizontally. Synonym(s): astrocyte; Cajal cell
interstitial nucleus of Cajal - a group of neurons believed to be involved in the integration of head and eye movements. Synonym(s): interstitial nucleus

Deiters,

Otto F.K., German anatomist, 1834-1863.
Deiters cells - the supporting cells of the organ of Corti; one of the large neuroglia cells of nervous tissue. Synonym(s): astrocyte; phalangeal cell
Deiters nucleus - lateral vestibular nucleus.
Deiters terminal frames - platelike structures in the organ of Corti uniting the outer phalangeal cells with Hensen cells.

as·tro·cyte

(as'trō-sīt, astrŏ-sīt)
One of the large neuroglial cells of neural tissue.
See: neuroglia
[G. astēr, star, + kytos, chamber, cell]

astrocyte

a neuroglial cell of ectodermal origin, characterized by fibrous or protoplasmic processes; collectively called astroglia or macroglia.

gemistocytic astrocyte
a plump astrocyte which results from injury to nervous tissue. Usually an extensive area is involved.
References in periodicals archive ?
The investigators obtained further evidence of the critical role of astroglial cells in Down syndrome by implanting the skin-cell derived astroglial cells from Down syndrome patients into mice.
When they administered minocycline--a tetracycline antibiotic with anti-inflammatory properties commonly used to treat bacterial infections, acne and arthritis--many of the abnormalities in the astroglial cells were corrected and there were more healthy interactions between the astroglia and neurons compared to the control cells without the defect.
Using this technology, the study is the first to discover the critical role of astroglial cells in Down syndrome as well as identify a promising pathway for exploring how a drug such as minocycline may offer an effective way to help treat it.
Given that different cell types express different variants of CB1Rs, there might be a way to therapeutically activate the receptors on neurons while leaving the astroglial cells out, Marsicano said.
Chloroquine induces activation of nuclear factor-kappaB and subsequent expression of pro-inflammatory cytokines by human astroglial cells.
S-100 is a calcium-binding protein synthesized in astroglial cells in all parts of the central nervous system (CNS).