Neuroscience and biobehavioral reviews · 2019
The genetic underpinnings of callous-unemotional traits: A systematic research review.
СтатьяПоддержка NIH: внешняя программаСистематический обзорНазвание и аннотация: Перевод пока не подготовлен
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Moore Ashlee A, Blair R James, Hettema John M, Roberson-Nay Roxann
Аннотация
BACKGROUND: Callous-unemotional (CU) traits represent the affective features of psychopathy used to delineate youth at high risk for externalizing pathology. The genetic etiology CU traits is not currently well-understood.
METHODS: The current review surveyed the literature for studies on the genetic underpinnings of CU traits and integrated information from 39 genetic studies.
RESULTS: The results from 24 studies with quantitative data suggest that the heritability for CU traits is likely between 36-67%. A majority of the 16 molecular genetic studies focused on candidate genes in the serotonin and oxytocin systems with results that have not been well replicated. Although two genome-wide association studies have been conducted, no genome-wide significant loci have been discovered.
DISCUSSION: There is some evidence to suggest that the serotonin and oxytocin systems may play a role in CU traits; however, there is currently not enough evidence to implicate specific genetic mechanisms. The authors encourage researchers to continue to apply the most up-to-date and relevant methodology, specifically collaborations and consortiums using genome-wide and polygenic methods.
METHODS: The current review surveyed the literature for studies on the genetic underpinnings of CU traits and integrated information from 39 genetic studies.
RESULTS: The results from 24 studies with quantitative data suggest that the heritability for CU traits is likely between 36-67%. A majority of the 16 molecular genetic studies focused on candidate genes in the serotonin and oxytocin systems with results that have not been well replicated. Although two genome-wide association studies have been conducted, no genome-wide significant loci have been discovered.
DISCUSSION: There is some evidence to suggest that the serotonin and oxytocin systems may play a role in CU traits; however, there is currently not enough evidence to implicate specific genetic mechanisms. The authors encourage researchers to continue to apply the most up-to-date and relevant methodology, specifically collaborations and consortiums using genome-wide and polygenic methods.