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#astrocytes — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #astrocytes, aggregated by home.social.

  1. 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.
    sciencenews.org/article/astroc
    archive.ph/MKkcZ

  2. 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.

    #Neuroscience #Imaging

  3. 🧠🎨 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.

    🌍 doi.org/10.1038/s41467-026-734

    #Neuroscience #Astrocytes #Neurobiology #NeuralDynamics

  4. 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

  5. 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

    #nanophotography
    #astrocytes