Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-6-8
pubmed:abstractText
We have reported an association between schizophrenia and homozygosity of a Bal I polymorphism in the first exon of the dopamine D3 receptor gene (Crocq et al.: Journal of Medical Genetics 29:858-860, 1992). The present study consists of an attempt to replicate this finding in a further sample of 66 patients and 97 controls. Once again more patients than controls were homozygous, but the effect was not as strong as in our first study (chi 2 = 2.53, P = 0.05, one tailed). When pooled data from our two studies were analysed, excess homozygosity in patients remained highly significant (P = 0.002) with a particular excess of the 1:1 genotype (P = 0.01). This reflected a departure from Hardy-Weinberg equilibrium in the patients (P = 0.0005) but not the controls (P = 0.24). This led us to explore the possibility that there might be important differences between the patients in our two studies and that excess homozygosity might be a characteristic of particular subgroups of schizophrenics. Our findings suggest that the effect is consistently at its strongest in those patients who have a high familial loading and in those who have a good response to neuroleptic treatment, and that differences between our two samples might have contributed to the quantitatively different outcomes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0148-7299
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
21-6
pubmed:dateRevised
2008-9-4
pubmed:meshHeading
pubmed-meshheading:7909989-Adult, pubmed-meshheading:7909989-Alleles, pubmed-meshheading:7909989-Antipsychotic Agents, pubmed-meshheading:7909989-Base Sequence, pubmed-meshheading:7909989-Case-Control Studies, pubmed-meshheading:7909989-Chi-Square Distribution, pubmed-meshheading:7909989-DNA Primers, pubmed-meshheading:7909989-Deoxyribonucleases, Type II Site-Specific, pubmed-meshheading:7909989-Female, pubmed-meshheading:7909989-Gene Frequency, pubmed-meshheading:7909989-Homozygote, pubmed-meshheading:7909989-Humans, pubmed-meshheading:7909989-Male, pubmed-meshheading:7909989-Middle Aged, pubmed-meshheading:7909989-Molecular Sequence Data, pubmed-meshheading:7909989-Odds Ratio, pubmed-meshheading:7909989-Polymorphism, Restriction Fragment Length, pubmed-meshheading:7909989-Receptors, Dopamine, pubmed-meshheading:7909989-Receptors, Dopamine D2, pubmed-meshheading:7909989-Receptors, Dopamine D3, pubmed-meshheading:7909989-Reproducibility of Results, pubmed-meshheading:7909989-Schizophrenia, pubmed-meshheading:7909989-Sequence Analysis, DNA, pubmed-meshheading:7909989-Sex Factors, pubmed-meshheading:7909989-Treatment Outcome
pubmed:year
1994
pubmed:articleTitle
Relationship between homozygosity at the dopamine D3 receptor gene and schizophrenia.
pubmed:affiliation
Department of Psychological Medicine, University of Wales College of Medicine, Cardiff, United Kingdom.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't