Significant Locus and Metabolic Genetic Correlations Revealed in Genome-Wide Association Study of Anorexia Nervosa

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00209805%3A_____%2F17%3A00077838" target="_blank" >RIV/00209805:_____/17:00077838 - isvavai.cz</a>

Result on the web

<a href="https://ajp.psychiatryonline.org/doi/pdf/10.1176/appi.ajp.2017.16121402" target="_blank" >https://ajp.psychiatryonline.org/doi/pdf/10.1176/appi.ajp.2017.16121402</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1176/appi.ajp.2017.16121402" target="_blank" >10.1176/appi.ajp.2017.16121402</a>

Result language

angličtina

Original language name

Significant Locus and Metabolic Genetic Correlations Revealed in Genome-Wide Association Study of Anorexia Nervosa

Original language description

Objective: The authors conducted a genome-wide association study of anorexia nervosa and calculated genetic correlations with a series of psychiatric, educational, and metabolic phenotypes. Method: Following uniformquality control and imputation procedures using the 1000 Genomes Project (phase 3) in 12 case-control cohorts comprising 3,495 anorexia nervosa cases and 10,982 controls, the authors performed standard association analysis followed by a meta-analysis across cohorts. Linkage disequilibrium score regression was used to calculate genome-wide common variant heritability (single-nucleotide polymorphism [SNP]-based heritability [h2 SNP]), partitioned heritability, and genetic correlations (rg) between anorexia nervosa and 159 other phenotypes. Results: Results were obtained for 10,641,224 SNPs and insertion-deletion variants with minor allele frequencies.1% and imputation quality scores .0.6. The h2 SNP of anorexia nervosa was 0.20 (SE=0.02), suggesting that a substantial fraction of the twin-based heritability arises from common genetic variation. The authors identified one genome-wide significant locus on chromosome 12 (rs4622308) in a region harboring a previously reported type 1 diabetes and autoimmune disorder locus. Significant positive genetic correlations were observed between anorexia nervosa and schizophrenia, neuroticism, educational attainment, and high-density lipoprotein cholesterol, and significant negative genetic correlations were observed between anorexia nervosa and body mass index, insulin, glucose, and lipid phenotypes. Conclusions: Anorexia nervosa is a complex heritable phenotype for which this study has uncovered the first genomewide significant locus. Anorexia nervosa also has large and significant genetic correlations with both psychiatric phenotypes and metabolic traits. The study results encourage a reconceptualization of this frequently lethal disorder as one with both psychiatric and metabolic etiology.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30101 - Human genetics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

The American journal of psychiatry

ISSN

0002-953X

e-ISSN

—

Volume of the periodical

174

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

850-858

UT code for WoS article

000408892000010

EID of the result in the Scopus database

2-s2.0-85028720725