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GABA puts the brake on stem cells

In the adult brain, new neurons are generated from neural stem cells residing in the subventricular zone. Newborn neuroblasts release the transmitter GABA, which reduces the proliferation of stem cells—and thereby neurogenesis—by a nonsynaptic mechanism.

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Figure 1: The production of new neurons in the adult SVZ begins when a neural stem cell (B cell) divides to generate a transit-amplifying cell (C cell).

Ann Thomson

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Kriegstein, A. GABA puts the brake on stem cells. Nat Neurosci 8, 1132–1133 (2005). https://doi.org/10.1038/nn0905-1132

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