Schizophrenia susceptibility gene dysbindin regulates glutamatergic and dopaminergic functions via distinctive mechanisms in Drosophila

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Schizophrenia susceptibility gene dysbindin regulates glutamatergic and dopaminergic functions via distinctive mechanisms in Drosophila.

The dysfunction of multiple neurotransmitter systems is a striking pathophysiological feature of many mental disorders, schizophrenia in particular, but delineating the underlying mechanisms has been challenging. Here we show that manipulation of a single schizophrenia susceptibility gene, dysbindin, is capable of regulating both glutamatergic and dopaminergic functions through two independent ...

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The schizophrenia susceptibility gene dysbindin regulates dendritic spine dynamics.

Dysbindin is a schizophrenia susceptibility gene required for the development of dendritic spines. The expression of dysbindin proteins is decreased in the brains of schizophrenia patients, and neurons in mice carrying a deletion in the dysbindin gene have fewer dendritic spines. Hence, dysbindin might contribute to the spine pathology of schizophrenia, which manifests as a decrease in the numb...

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Evidence of novel neuronal functions of dysbindin, a susceptibility gene for schizophrenia.

Genetic variation in dysbindin (DTNBP1: dystrobrevin-binding protein 1) has recently been shown to be associated with schizophrenia. The dysbindin gene is located at chromosome 6p22.3, one of the most promising susceptibility loci in schizophrenia linkage studies. We attempted to replicate this association in a Japanese sample of 670 patients with schizophrenia and 588 controls. We found a nomi...

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Gene dosage in the dysbindin schizophrenia susceptibility network differentially affect synaptic function and plasticity.

Neurodevelopmental disorders arise from single or multiple gene defects. However, the way multiple loci interact to modify phenotypic outcomes remains poorly understood. Here, we studied phenotypes associated with mutations in the schizophrenia susceptibility gene dysbindin (dysb), in isolation or in combination with null alleles in the dysb network component Blos1. In humans, the Blos1 ortholo...

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Dopaminergic and Glutamatergic Dysfunctions in the Neuropathophysiology of Schizophrenia

Schizophrenia is a devastating mental disorder that affects almost 1% of the human population. Although the etiology and fundamental pathological processes associated with schizophrenia remain unclear, abnormalities of the dopamine and glutamate systems have been implicated in their occurrence. The putative role of dopamine in the pathophysiology and treatment of schizophrenia has been studied ...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2011

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.1114569108