#astrocytes — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #astrocytes, aggregated by home.social.
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Newly mapped #brain networks link far-flung regions
#Astrocyte networks in #mice link distant brain regions in ways nerve cell wiring does not.
This system, made of star-shaped cells called #astrocytes, is no relic, a new study reports. It’s operational, linking locales near and far in flexible, mysterious ways.
What’s more, astrocyte networks may also have roles in disorders such as #Alzheimer’s disease, traumatic brain injuries and stroke.
https://www.sciencenews.org/article/astrocytes-brain-networks-communicate
https://archive.ph/MKkcZ -
To capture this local heterogeneity, the authors developed a #multiphoton #FLIM approach with the Na⁺ indicator ING-2 and #astrocyte labeling, enabling quantitative Na⁺ measurements in individual #astrocytes and their processes. This is important because astrocytic Na⁺ is not just a bulk somatic variable. It varies locally across branches and subdomains, where K⁺ uptake and #glutamate-linked Na⁺ influx are regulated.
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🧠🎨 New paper by Meyer et al: #astrocytic #sodium #homeostasis is not uniform. Using multiphoton #FLIM in #mouse #brain slices and #invivo, they show strong #cellular and #subcellular heterogeneity in astrocytic Na⁺ levels.
Processes contain more Na⁺ than somata, Na⁺ varies between #astrocyte branches, and distinct Na⁺/K⁺-ATPase subunit patterns help tune local K⁺ uptake and #glutamate-linked Na⁺ influx.
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Interestingly, #Virchow also introduced the concept of #neuroglia as a distinct #cellular component of the #NervousSystem. This was a crucial step in understanding the cellular composition of the nervous system and laid the groundwork for later #neuroscience research on glial cells.
#glia #GliaCells #Astrocytes #Oligodendrocytes #Microglia #NeuroscienceHistory
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Magnetic Cell Sorter 🇺🇸
#Astrocytes #CellsandOrganelles #GLAST #GLAST+ #Magnetic #Sorter #astrocyte #brain
⏩ 2 new pictures from NIH BioArt https://commons.wikimedia.org/wiki/Special:ListFiles?limit=22&user=OptimusPrimeBot&ilshowall=1&offset=20251216025720
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Brain organoids are tiny, synthetic representations of real human brains. This section of a human brain organoid shows the star-shaped glial cells known as astrocytes, aged 140 days.
Photograph: Bahaa Al-mhanawi/AIBN
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Mouse studies cast astrocytes as stars of sensory perception
https://www.spectrumnews.org/news/mouse-studies-cast-astrocytes-as-stars-of-sensory-perception/
#inhibitorysignaling #sensoryperception #fragileXsyndrome #geneexpression #mousemodels #astrocytes #seizures #synapses #hearing #autism #touch #News #FMR1 #GABA