Neurodevelopmental origins of substance use disorders: Evidence from animal models of early-life adversity and addiction

被引:41
作者
Levis, Sophia C. [1 ,2 ]
Baram, Tallie Z. [1 ,3 ]
Mahler, Stephen V. [2 ]
机构
[1] Univ Calif Irvine, Dept Anat & Neurobiol, Irvine, CA 92717 USA
[2] Univ Calif Irvine, Dept Neurobiol & Behav, Irvine, CA USA
[3] Univ Calif Irvine, Dept Pediat, Irvine, CA 92717 USA
基金
美国国家卫生研究院;
关键词
addiction; early‐ life adversity; reward circuits; sex differences; stress circuits; CORTICOTROPIN-RELEASING-FACTOR; CONDITIONED PLACE PREFERENCE; NEONATAL MATERNAL SEPARATION; STRESS-INDUCED REINSTATEMENT; INTRACRANIAL SELF-STIMULATION; ENDOGENOUS OPIOID SYSTEM; NUCLEUS-ACCUMBENS SHELL; PRESCRIPTION DRUG-ABUSE; LONG-EVANS RATS; BEHAVIORAL SENSITIZATION;
D O I
10.1111/ejn.15223
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Addiction is a chronic relapsing disorder with devastating personal, societal, and economic consequences. In humans, early-life adversity (ELA) such as trauma, neglect, and resource scarcity are linked with increased risk of later-life addiction, but the brain mechanisms underlying this link are still poorly understood. Here, we focus on data from rodent models of ELA and addiction, in which causal effects of ELA on later-life responses to drugs and the neurodevelopmental mechanisms by which ELA increases vulnerability to addiction can be determined. We first summarize evidence for a link between ELA and addiction in humans, then describe how ELA is commonly modeled in rodents. Since addiction is a heterogeneous disease with many individually varying behavioral aspects that may be impacted by ELA, we next discuss common rodent assays of addiction-like behaviors. We then summarize the specific addiction-relevant behavioral phenotypes caused by ELA in male and female rodents and discuss some of the underlying changes in brain reward and stress circuits that are likely responsible. By better understanding the behavioral and neural mechanisms by which ELA promotes addiction vulnerability, we hope to facilitate development of new approaches for preventing or treating addiction in those with a history of ELA.
引用
收藏
页码:2170 / 2195
页数:26
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