title: Influence of neurexin 1 (NRXN1) polymorphisms in clozapine response.
abstract: Schizophrenia patients show alterations in the synaptic connectivity. However, it remains unknown whether antipsychotic response may be altered depending on the synaptic connectivity. We tested this association using polymorphisms in the neurexin 1 gene (NRXN1). Large NRXN1 deletions have also been associated with schizophrenia. We genotyped four variants in 140 schizophrenia patients assessed prospectively for clozapine response after 6 months. We observed a trend toward association of clozapine response with the rs12467557 (permuted p = 0.051). These results should be read with caution before independent replication.
authors.affiliation: Neurogenetics Section, Neuroscience Department, Centre for Addiction and Mental Health, Toronto, Ontario, Canada. renanrps@yahoo.com.br
authors.forename: Renan P
authors.initials: RP
authors.lastname: Souza
authors.forename: Herbert Y
authors.initials: HY
authors.lastname: Meltzer
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Lieberman
authors.forename: Bernard
authors.initials: B
authors.lastname: Le Foll
authors.forename: James L
authors.initials: JL
authors.lastname: Kennedy
mesh_terms: D000483:Alleles; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D002135:Calcium-Binding Proteins; D015816:Cell Adhesion Molecules, Neuronal / Q000235:genetics* / Q000378:metabolism; D003024:Clozapine / Q000627:therapeutic use*; D005260:Female; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D008297:Male; D009419:Nerve Tissue Proteins / Q000235:genetics* / Q000378:metabolism; D019006:Neural Cell Adhesion Molecules; D011110:Polymorphism, Genetic; D020641:Polymorphism, Single Nucleotide; D011446:Prospective Studies; D012559:Schizophrenia / Q000188:drug therapy* / Q000235:genetics
chemical_list: D014150:Antipsychotic Agents; D002135:Calcium-Binding Proteins; D015816:Cell Adhesion Molecules, Neuronal; C539628:NRXN1 protein, human; D009419:Nerve Tissue Proteins; D019006:Neural Cell Adhesion Molecules; D003024:Clozapine