单词	astrocyte
释义	astrocyte noun as·​tro·​cyte ˈa-strə-ˌsīt  : a large star-shaped cell of the glia astrocytic ˌa-strə-ˈsi-tik  adjective Example Sentences Recent Examples on the Web But after nine months, the organoid astrocytes reached a more mature state, resembling what Barres had observed in postnatal brain cells. Quanta Magazine, 29 Aug. 2017 Surrounding the node of Ranvier is a glial cell called an astrocyte. R. Douglas Fields, Scientific American, 12 Mar. 2020 Perhaps most interestingly, the virus was all over cells known as astrocytes, which do everything from guiding neurons’ growth to ushering nutrients around the brain. Quanta Magazine, 7 July 2016 By injecting certain proteins (called transcription factors) involved in development directly into the brain, Götz and her team in Munich have figured out how to alter the function of astrocytes after an injury. Jacqueline Detwiler, Popular Mechanics, 3 Oct. 2018 Cajal would never have seen such wildly different forms of astrocytes, a type of glial cell, in his microscope. Sharon Begley, STAT, 3 May 2018 Within two to 12 weeks, the organoids were sprouting additional neurons, including ones found in very specific regions of the human cortex; glia cells including astrocytes; and neural stem cells. Sharon Begley, STAT, 16 Apr. 2018 Instead, it's made by a type of cell called an astrocyte. John Timmer, Ars Technica, 17 Feb. 2018 The spread of the disease is really a consequence of how cells around the nerves (astrocytes and microglial cells) respond to the dying motor neurons. James Hamblin, The Atlantic, 15 Sep. 2017 See More Word History Etymology International Scientific Vocabulary First Known Use 1896, in the meaning defined above Medical Definition astrocyte noun as·​tro·​cyte ˈas-trə-ˌsīt  : a star-shaped cell especially : any comparatively large much-branched glial cell Glia outnumber neurons in the human brain by a factor of 10 to one, and astrocytes are the most abundant type of glial cell. Tina Hesman Saey, Science News Astrocytes come in two main forms: fibrous astrocytes are found in the white matter and protoplasmic astrocytes in the gray matter. Harold Kimelberg and Michael Norenberg, Scientific American
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