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Comment
. 2011 Nov 4;9(5):385-6.
doi: 10.1016/j.stem.2011.10.007.

Postnatal neurogenesis in the human forebrain: from two migratory streams to dribbles

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Comment

Postnatal neurogenesis in the human forebrain: from two migratory streams to dribbles

Zhengang Yang et al. Cell Stem Cell. .

Abstract

Subventricular zone neurogenesis occurs throughout life from rodents to primates, but the existence of a rostral migratory stream of immature neurons in postnatal human brains is controversial. A recent report in Nature (Sanai et al., 2011) identifies two neuronal migratory streams in infant human brains targeting the olfactory bulb and prefrontal cortex.

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Figures

Figure 1
Figure 1. Neurogenesis in the postnatal human SVZ
(A) In the infant human brain, a large number of neuroblasts derived from the subventricular zone (SVZ) migrate not only into the olfactory bulb (OB) through the rostral migratory stream (RMS), but also into the ventromedial prefrontal cortex (VMPFC) through the medial migratory stream (MMS). (B) In the adult human brain, only few migrating neuroblasts in isolation are present in the SVZ and the remnant RMS. Postnatal migration of neuroblasts occurs in the absence of olfactory ventricular extension.

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References

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