Linked Life Data

19406852

Source:http://linkedlifedata.com/resource/pubmed/id/19406852

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pubmed-article:19406852pubmed:abstractTextIt has been hypothesised that in subjects with 22q11 deletion syndrome (22q11DS) disturbances of the dopamine (DA) system contribute to their increased risk for cognitive deficits and psychiatric problems. However, central DAergic neurotransmission in 22q11DS has not been investigated. We measured striatal D? receptor binding potential (D?R BP(ND)) using (S)-(-)-3-iodo-2-hydroxy-6-methoxy-N-[(1-ethyl-2-pyrrolidinyl)methyl] benzamide-single photon emission computed tomography ([¹²³I]IBZM SPECT) in 12 adults with 22q11DS and 12 matched controls. Correlations between D?R BP(ND) and plasma prolactin (pPRL) levels were also determined. 22q11DS subjects and controls had similar D?R BP( ND). There was a positive correlation between D?R BP( ND) and pPRL values in controls, but no such relation was found in 22q11DS subjects. This study suggests that a 22q11 deletion does not affect striatal DAergic neurotransmission in the living human brain. However, the disturbed relationship between D?R BP(ND) and pPRL values suggests DAergic dysfunction at a different level. Further studies on DAergic function in extra-striatal brain regions and under challenged conditions are needed.lld:pubmed
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pubmed-article:19406852pubmed:articleTitleStriatal D? receptor binding in 22q11 deletion syndrome: an [¹²³I]IBZM SPECT study.lld:pubmed
pubmed-article:19406852pubmed:affiliationDepartment of Psychiatry, Academic Medical Centre, University of Amsterdam, the Netherlands, Ipse de Bruggen, Centre for People with Intellectual Disability, Zwammerdam, the Netherlands. h.j.boot@amc.uva.nllld:pubmed
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pubmed-article:19406852pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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