ISSN:
1435-1463
Keywords:
Keywords: Dopamine D2 receptor
;
gene
;
promoter
;
polymorphism
;
linkage
;
schizophrenia
;
bipolar affective disorder.
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary. A possible dysregulation of dopaminergic neurotransmission has been implicated in the aetiology of schizophrenic psychoses, in particular of paranoid-hallucinatory states, and of the manic episodes of bipolar affective disorder. In the present study we analysed allelic and genotypic variations of a recently described functional deletion/insertion variant (−141C Ins/Del) in the 59 flanking region of the human dopamine D2 receptor gene. We investigated a total of 620 unrelated individuals, comprising 260 schizophrenic patients, 70 patients with bipolar affective disorder, and 290 population controls. Analysis of the −141C Ins/Del variant revealed that the schizophrenic, bipolar affective and control groups did not differ significantly regarding genotype frequencies and allele frequencies. No evidence of an allelic association with either a family history of schizophrenic psychosis or a diagnosis of schizophrenia of the paranoid type (according to ICD 10) was found. Our findings indicate that the −141C Del variant in the 5′ flanking region of the human dopamine D2 receptor gene is unlikely to play a substantial role in genetic predisposition to major psychiatric disorders in Caucasians.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s007020050041
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