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Annotation

Faulkner RL, Jang MH, Liu XB, Duan X, Sailor KA, Kim JY, Ge S, Jones EG, Ming GL, Song H, Cheng HJ. Development of hippocampal mossy fiber synaptic outputs by new neurons in the adult brain. Proc Natl Acad Sci U S A . 2008 Sep 16 ; 105(37):14157-62. PubMed Abstract

Comments on Paper and Primary News
Primary News: DISC1 Is Critical for Axon Terminals in Adult Hippocampus

Comment by:  Jill MorrisKate Meyer
Submitted 3 October 2008 Posted 6 October 2008
  I recommend this paper

The elegant research by Faulkner and colleagues, along with their previous work (Duan et al., 2007), clearly demonstrates a role for DISC1 in regulating the timing of neuronal development in the adult brain. The loss of Disc1 in adult-born dentate granule cells resulted in aberrant axonal targeting and accelerated mossy fiber maturation. Although it is hypothesized that the hippocampus is involved in the pathophysiology of schizophrenia, the cellular and molecular underpinnings of hippocampal dysfunction are unknown. However, it is becoming apparent that Disc1 is a regulator of granule cell integration and maturation in the adult hippocampus. The function of adult-born granule cells and the contribution they make to hippocampal function is, of course, yet to be fully elucidated. In the context of schizophrenia, though, it may be that abnormal incorporation of newborn granule cells into the hippocampal network—perhaps caused by mutations in key genes such as Disc1—is a post-developmental trigger which leads to the onset...  Read more


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