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Cross-Disorder Psychiatric Genomics.

Anna R Docherty¹, Arden A Moscati¹, Ayman H Fanous²

¹Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.

Current Behavioral Neuroscience Reports

|January 3, 2017

Summary

This summary is machine-generated.

Psychiatric genomics is advancing by using dimensional approaches to understand both comorbidity and polygenicity. This cross-disorder research aims to improve diagnosis, early detection, and treatment strategies.

Keywords:

GWAS Psychiatric Genomics Consortium co-heritability comorbidity cross-disorder genetic pleiotropy

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Area of Science:

Psychiatric genomics
Quantitative genetics
Biostatistics

Background:

Psychiatric diagnoses are complex, often exhibiting comorbidity and influenced by numerous genetic factors (polygenicity).
Traditional diagnostic categories may not fully capture the underlying biological reality of mental health conditions.
Genome-wide association studies (GWAS) have faced challenges in explaining the heritability of psychiatric disorders due to polygenicity.

Purpose of the Study:

To review the progress in cross-disorder psychiatric genomics.
To highlight the utility of dimensional approaches in addressing psychiatric comorbidity and polygenicity.
To discuss the implications of these advancements for clinical practice and future research.

Main Methods:

Review of current literature on cross-disorder psychiatric genomic research.
Analysis of dimensional approaches applied to psychiatric phenotypes.
Examination of advanced statistical methods for analyzing genomic data beyond traditional GWAS.

Main Results:

Dimensional approaches to the phenotype have shown promise in addressing the comorbidity of psychiatric diagnoses.
Dimensional approaches to the genome, coupled with novel statistical methods, are beginning to resolve the issue of massive polygenicity.
Cross-disorder research offers significant potential for advancing psychiatric understanding.

Conclusions:

Cross-disorder research in psychiatry holds substantial potential for informing clinical diagnosis, early detection, prevention, and treatment development.
Future research should build upon current findings to investigate developmental studies of risk and resilience in psychiatric disorders.