| 21. | But he is not persuaded that the astrocytes are the neural stem cells.
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| 22. | Astrocytes have been claimed to be necessary to create the blood brain barrier.
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| 23. | Synaptic modulation by astrocytes takes place because of this 3-part association.
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| 24. | They are also present on both astrocytes and oligodendrocytes.
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| 25. | Astrocytes can heal partially the lesion leaving a scar.
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| 26. | Astrocytes help to maintain ionic balance in the extracellular space in the brain.
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| 27. | ATP is a gliotransmitter that is released from astrocytes and restrains neuronal activity.
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| 28. | Astrocytes and microglia cells digest the decaying organelles and dying neurons through phagocytosis.
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| 29. | Some cells are then phagocytosed by astrocytes and microglia.
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| 30. | These tumors are formed through the mitosis of astrocytes.
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