title: Insertion/deletion polymorphism of the angiotensin-converting enzyme gene is associated with schizophrenia in a Spanish population.
abstract: A number of factors make the angiotensin-converting enzyme (ACE) a candidate gene for psychiatric disorders, including its action on neurotransmitters such as dopamine. An insertion/deletion (I/D) polymorphism in an ACE gene intron is associated with ACE levels. Here we examine whether the ACE I/D polymorphism is a risk factor for schizophrenia. Participants comprised 243 subjects diagnosed with schizophrenia and related disorders, and 291 hospital-based controls. The D allele of the ACE gene was identified as a protective factor, significantly reducing the risk of developing schizophrenia and related disorders (by 40%) and of developing schizophrenia (by 50%). This protection is explained by the additive genotype risk model, in which the protection increases with the number of D alleles. Our results indicate that the ACE D allele is involved in the development of schizophrenia.
authors.affiliation: Anatomía Patológica, Farmacología y Microbiología, Universidad de Barcelona. IDIBAPS. Casanova 143, E-08036 Barcelona, Spain.
authors.forename: Anna
authors.initials: A
authors.lastname: Crescenti
authors.forename: Patricia
authors.initials: P
authors.lastname: Gassó
authors.forename: Sergi
authors.initials: S
authors.lastname: Mas
authors.forename: Rosa
authors.initials: R
authors.lastname: Abellana
authors.forename: Ramon
authors.initials: R
authors.lastname: Deulofeu
authors.forename: Eduard
authors.initials: E
authors.lastname: Parellada
authors.forename: Miquel
authors.initials: M
authors.lastname: Bernardo
authors.forename: Amalia
authors.initials: A
authors.lastname: Lafuente
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D016022:Case-Control Studies; D005260:Female; D006580:Genetic Carrier Screening; D020022:Genetic Predisposition to Disease / Q000235:genetics; D005838:Genotype; D006720:Homozygote; D006801:Humans; D054643:INDEL Mutation / Q000235:genetics*; D007438:Introns / Q000235:genetics; D008297:Male; D008875:Middle Aged; D007703:Peptidyl-Dipeptidase A / Q000235:genetics*; D011110:Polymorphism, Genetic / Q000235:genetics*; D011618:Psychotic Disorders / Q000235:genetics*; D012307:Risk Factors; D012559:Schizophrenia / Q000235:genetics*; D012569:Schizotypal Personality Disorder / Q000235:genetics*; D055815:Young Adult
chemical_list: D007703:Peptidyl-Dipeptidase A