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Open AccessJournal ArticleDOI

The Role of Genes, Stress, and Dopamine in the Development of Schizophrenia.

TLDR
A model is presented of how genes and environmental factors may sensitize the dopamine system so that it is vulnerable to acute stress, leading to progressive dysregulation and the onset of psychosis.
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This article is published in Biological Psychiatry.The article was published on 2017-01-01 and is currently open access. It has received 410 citations till now. The article focuses on the topics: Dopaminergic & Dopamine receptor D3.

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Dopamine: Functions, Signaling, and Association with Neurological Diseases

TL;DR: The aspects of dopamine as a catecholaminergic neurotransmitter and dopamine signaling pathways elicited through dopamine receptor activation in normal brain function are summarized and the potential involvement of these signaling pathways in evoking the onset and progression of some diseases in the nervous system are described.
Journal ArticleDOI

30 Years on: How the Neurodevelopmental Hypothesis of Schizophrenia Morphed Into the Developmental Risk Factor Model of Psychosis

TL;DR: The neurodevelopment hypothesis of schizophrenia morphed into the developmental risk factor model of psychosis and integrated new evidence concerning dysregulated striatal dopamine as the final step on the pathway linking risk factors to psychotic symptoms.
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Defining the Locus of Dopaminergic Dysfunction in Schizophrenia: A Meta-analysis and Test of the Mesolimbic Hypothesis

TL;DR: In individuals with schizophrenia dopaminergic dysfunction is greater in dorsal compared to limbic subdivisions of the striatum, which is inconsistent with the mesolimbic hypothesis and identifies the dorsal striatum as a target for novel treatment development.
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Auditory verbal hallucinations and continuum models of psychosis: A systematic review of the healthy voice-hearer literature

TL;DR: Overall the results of the present systematic review support a continuum view rather than a diagnostic model, but cannot distinguish between ‘quasi’ and ‘fully’ dimensional models.
References
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Journal ArticleDOI

The nature of dopamine dysfunction in schizophrenia and what this means for treatment

TL;DR: The locus of the largest dopaminergic abnormality in schizophrenia is presynaptic, which affects dopamine synthesis capacity, baseline synaptic dopamine levels, and dopamine release, and future drug development should focus on the control of presYNaptic dopamine synthesis and release capacity.
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The catechol-O-methyltransferase polymorphism: relations to the tonic-phasic dopamine hypothesis and neuropsychiatric phenotypes.

TL;DR: It is hypothesized that the COMT Met allele (associated with low enzyme activity) results in increased levels of tonic DA and reciprocal reductions in phasic DA in subcortical regions and increased D1 transmission cortically.
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Elevated Striatal Dopamine Function Linked to Prodromal Signs of Schizophrenia

TL;DR: Findings indicate that dopamine overactivity predates the onset of schizophrenia in individuals with prodromal psychotic symptoms, is predominantly localized in the associative striatum, and is correlated with the severity of symptoms and neurocognitive dysfunction.
Journal ArticleDOI

Dopamine Release in Response to a Psychological Stress in Humans and Its Relationship to Early Life Maternal Care: A Positron Emission Tomography Study Using [11C]Raclopride

TL;DR: It is suggested that aversive stressful events can be associated with mesolimbic dopamine release in humans, and that the method presented here may be useful to study the effects of early life events on neurobiological stress systems.
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