Eating and weight disorders : EWD · 2019
De novo deleterious variants that may alter the dopaminergic reward pathway are associated with anorexia nervosa.
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Bienvenu Thierry, Lebrun Nicolas, Clarke Julia, Duriez Philibert, Gorwood Philip, Ramoz Nicolas
Аннотация
PURPOSE: Anorexia nervosa (AN) is a complex neuropsychiatric disorder presenting with dangerously low body weight, and a deep and persistent fear of gaining weight. Up to now, four genome-wide association studies of AN have been conducted to date and identified only few significant loci. However, both previous studies focused on common variation and on rare exonic variants. Currently, de novo variants are one of the most significant risk factors for neurodevelopmental disorders and psychiatric disorders.
METHODS: We analyzed by whole exome sequencing a cohort of nine female AN individuals and their parents (mother and father), and focused our analysis on de novo variants.
RESULTS: Here, we found seven de novo missense variants in potential genes in nine studied AN patients. Four of these genes (CSMD1, CREB3, PTPRD and GAB1) belong to a same signaling pathway involving neuron differentiation and dopamine pathway.
CONCLUSIONS: This study provides a list of interesting genes such as CSDM1 and CREB3 that are candidates to be involved in the etiology of anorexia nervosa.
LEVEL OF EVIDENCE: basic research.
METHODS: We analyzed by whole exome sequencing a cohort of nine female AN individuals and their parents (mother and father), and focused our analysis on de novo variants.
RESULTS: Here, we found seven de novo missense variants in potential genes in nine studied AN patients. Four of these genes (CSMD1, CREB3, PTPRD and GAB1) belong to a same signaling pathway involving neuron differentiation and dopamine pathway.
CONCLUSIONS: This study provides a list of interesting genes such as CSDM1 and CREB3 that are candidates to be involved in the etiology of anorexia nervosa.
LEVEL OF EVIDENCE: basic research.