PT - JOURNAL ARTICLE AU - Crocq, M A AU - Mant, R AU - Asherson, P AU - Williams, J AU - Hode, Y AU - Mayerova, A AU - Collier, D AU - Lannfelt, L AU - Sokoloff, P AU - Schwartz, J C TI - Association between schizophrenia and homozygosity at the dopamine D3 receptor gene. AID - 10.1136/jmg.29.12.858 DP - 1992 Dec 01 TA - Journal of Medical Genetics PG - 858--860 VI - 29 IP - 12 4099 - http://jmg.bmj.com/content/29/12/858.short 4100 - http://jmg.bmj.com/content/29/12/858.full SO - J Med Genet1992 Dec 01; 29 AB - Disturbances in dopamine neurotransmission have been postulated to underlie schizophrenia. We report data from two independent studies of a BalI polymorphism in the dopamine D3 receptor gene in patients with schizophrenia. In both studies, more patients than controls were homozygous (p = 0.005, p = 0.008). When pooled data were analysed, this difference was highly significant (p = 0.0001) with a relative risk of schizophrenia in homozygotes of 2.61 (95% confidence intervals 1.60-4.26).