TY - JOUR
T1 - Association between RGS4 variants and psychotic-like experiences in nonclinical individuals
AU - de Castro-Catala, Marta
AU - Cristóbal-Narváez, Paula
AU - Kwapil, Thomas R.
AU - Sheinbaum, Tamara
AU - Peña, Elionora
AU - Barrantes-Vidal, Neus
AU - Rosa, Araceli
N1 - This work was funded by the Ministerio de Economía y Competitividad (PSI2011-30321-C02-01 and C02-02, and Red de Excelencia PSI2014-56303-REDT PROMOSAM: Investigación en Procesos, Mecanismos y Tratamientos Psicológicos para la Promoción de la Salud Mental), Fundació La Marató de TV3 (091110) and the Comissionat per a Universitats i Recerca of the Generalitat de Catalunya (2014SGR1070 and 2014SGR1636). N. Barrantes-Vidal is funded by the Academia Research Award (Institució Catalana de Recerca i Estudis Avançats; ICREA) from the Catalan Government.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - The psychosis phenotype is expressed across a continuum known as schizotypy, which ranges from personality variation through subclinical symptoms to severe psychopathology. The study of subclinical manifestations in non-affected individuals minimizes confounding factors associated with the clinical phenotype and facilitates the differentiation of dimension-specific etiological mechanisms. The aim of the present study was to investigate the association between the variation in the regulator of G-protein signaling 4 (RGS4) gene, a putative candidate gene for psychosis previously associated with schizophrenia endophenotypes, and psychotic-like experiences (PLEs). In total, 808 healthy individuals completed the community assessment of psychic experiences (CAPE) to measure positive and negative PLEs and provided a DNA sample. Two RGS4 single-nucleotide polymorphisms (SNPs) (rs951436 [SNP4] and rs2661319 [SNP18]) were genotyped. Analyses of covariance (ANCOVA) were used to explore the association of positive and negative PLEs with RGS4 variation. Our results showed associations of positive and negative PLEs with the two polymorphisms studied: subjects with the T allele (SNP4) and the A allele (SNP18) had higher scores on both the positive and the negative dimensions. Haplotypic analyses supported these results, showing the highest scores in those with the TA haplotype (SNP4-SNP18). The RGS4 variants might exert gene-specific modulating effects on psychosis proneness.
AB - The psychosis phenotype is expressed across a continuum known as schizotypy, which ranges from personality variation through subclinical symptoms to severe psychopathology. The study of subclinical manifestations in non-affected individuals minimizes confounding factors associated with the clinical phenotype and facilitates the differentiation of dimension-specific etiological mechanisms. The aim of the present study was to investigate the association between the variation in the regulator of G-protein signaling 4 (RGS4) gene, a putative candidate gene for psychosis previously associated with schizophrenia endophenotypes, and psychotic-like experiences (PLEs). In total, 808 healthy individuals completed the community assessment of psychic experiences (CAPE) to measure positive and negative PLEs and provided a DNA sample. Two RGS4 single-nucleotide polymorphisms (SNPs) (rs951436 [SNP4] and rs2661319 [SNP18]) were genotyped. Analyses of covariance (ANCOVA) were used to explore the association of positive and negative PLEs with RGS4 variation. Our results showed associations of positive and negative PLEs with the two polymorphisms studied: subjects with the T allele (SNP4) and the A allele (SNP18) had higher scores on both the positive and the negative dimensions. Haplotypic analyses supported these results, showing the highest scores in those with the TA haplotype (SNP4-SNP18). The RGS4 variants might exert gene-specific modulating effects on psychosis proneness.
KW - Psychosis proneness
KW - Psychotic-like experiences
KW - RGS4 gene
KW - Schizotypy
UR - http://www.scopus.com/inward/record.url?scp=84959127516&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84959127516&partnerID=8YFLogxK
U2 - 10.1007/s00406-016-0676-7
DO - 10.1007/s00406-016-0676-7
M3 - Article
C2 - 26910404
AN - SCOPUS:84959127516
SN - 0940-1334
VL - 267
SP - 19
EP - 24
JO - European Archives of Psychiatry and Clinical Neuroscience
JF - European Archives of Psychiatry and Clinical Neuroscience
IS - 1
ER -