Abstract:
:Impulsivity, a multifaceted behavioral hallmark of attention-deficit/hyperactivity disorder (ADHD), strongly influences addiction vulnerability and other psychiatric disorders that incur enormous medical and societal burdens yet the neurobiological underpinnings linking impulsivity to disease remain poorly understood. Here we report the critical role of ventral striatal cAMP-response element modulator (CREM) in mediating impulsivity relevant to drug abuse vulnerability. Using an ADHD rat model, we demonstrate that impulsive animals are neurochemically and behaviorally more sensitive to heroin and exhibit reduced Crem expression in the nucleus accumbens core. Virally increasing Crem levels decreased impulsive action, thus establishing a causal relationship. Genetic studies in seven independent human populations illustrate that a CREM promoter variant at rs12765063 is associated with impulsivity, hyperactivity and addiction-related phenotypes. We also reveal a role of Crem in regulating striatal structural plasticity. Together, these results highlight that ventral striatal CREM mediates impulsivity related to substance abuse and suggest that CREM and its regulated network may be promising therapeutic targets.
journal_name
Mol Psychiatryjournal_title
Molecular psychiatryauthors
Miller ML,Ren Y,Szutorisz H,Warren NA,Tessereau C,Egervari G,Mlodnicka A,Kapoor M,Chaarani B,Morris CV,Schumann G,Garavan H,Goate AM,Bannon MJ,IMAGEN Consortium.,Halperin JM,Hurd YLdoi
10.1038/mp.2017.80subject
Has Abstractpub_date
2018-05-01 00:00:00pages
1328-1335issue
5eissn
1359-4184issn
1476-5578pii
mp201780journal_volume
23pub_type
杂志文章abstract::Although inherited DNA sequences have a well-demonstrated role in psychiatric disease risk, for even the most heritable mental disorders, monozygotic twins are discordant at a significant rate. The genetic variation associated with mental disorders has heretofore been based on the search for rare or common variation i...
journal_title:Molecular psychiatry
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journal_title:Molecular psychiatry
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pub_type: 临床试验,杂志文章,随机对照试验
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