Nucleus accumbens invulnerability to methamphetamine neurotoxicity.
Nucleus accumbens invulnerability to methamphetamine neurotoxicity.
复制标题
伏核不受甲基苯丙胺神经毒性的影响。
DOI:
10.1093/ilar.52.3.352
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发表时间:
2011
期刊:
影响因子:
2.5
通讯作者:
Thomas,DavidM
中科院分区:
文献类型:
--
作者:
Kuhn,DonaldM;Angoa-Pérez,Mariana;Thomas,DavidM
Methamphetamine (Meth) is a neurotoxic drug of abuse that damages neurons and nerve endings throughout the central nervous system. Emerging studies of human Meth addicts using both postmortem analyses of brain tissue and noninvasive imaging studies of intact brains have confirmed that Meth causes persistent structural abnormalities. Animal and human studies have also defined a number of significant functional problems and comorbid psychiatric disorders associated with long-term Meth abuse. This review summarizes the salient features of Meth-induced neurotoxicity with a focus on the dopamine (DA) neuronal system. DA nerve endings in the caudate-putamen (CPu) are damaged by Meth in a highly delimited manner. Even within the CPu, damage is remarkably heterogeneous, with ventral and lateral aspects showing the greatest deficits. The nucleus accumbens (NAc) is largely spared the damage that accompanies binge Meth intoxication, but relatively subtle changes in the disposition of DA in its nerve endings can lead to dramatic increases in Meth-induced toxicity in the CPu and overcome the normal resistance of the NAc to damage. In contrast to the CPu, where DA neuronal deficiencies are persistent, alterations in the NAc show a partial recovery. Animal models have been indispensable in studies of the causes and consequences of Meth neurotoxicity and in the development of new therapies. This research has shown that increases in cytoplasmic DA dramatically broaden the neurotoxic profile of Meth to include brain structures not normally targeted for damage. The resistance of the NAc to Meth-induced neurotoxicity and its ability to recover reveal a fundamentally different neuroplasticity by comparison to the CPu. Recruitment of the NAc as a target of Meth neurotoxicity by alterations in DA homeostasis is significant in light of the numerous important roles played by this brain structure.
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DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
H. Roitblat;T. Bever;H. Terrace
通讯作者:
H. Terrace
DOI:
10.3758/bf03209775
发表时间:
1981-01-01
期刊:
ANIMAL LEARNING & BEHAVIOR
影响因子:
--
作者:
STRAUB, RO;TERRACE, HS
通讯作者:
TERRACE, HS
DOI:
10.1037//0097-7403.17.1.107
发表时间:
1991
期刊:
Journal of experimental psychology. Animal behavior processes
影响因子:
--
作者:
Terrace,HS;Chen,SF
通讯作者:
Chen,SF
DOI:
10.1037//0097-7403.17.1.81
发表时间:
1991
期刊:
Journal of experimental psychology. Animal behavior processes
影响因子:
--
作者:
Terrace,HS
通讯作者:
Terrace,HS
DOI:
10.1037//0097-7403.12.3.215
发表时间:
1986
期刊:
Journal of Experimental Psychology: Animal Behavior Processes
影响因子:
--
作者:
H. Terrace
通讯作者:
H. Terrace