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Effects of alcohol dependence on discrete choice between alcohol and saccharin.
Neuropsychopharmacology ( IF 7.6 ) Pub Date : 2018-08-01 , DOI: 10.1038/s41386-018-0101-1
Melissa Russo , Douglas Funk , Andrew Loughlin , Kathleen Coen , A. D. Lê

Dependence on drugs has enduring effects on drug intake and relapse. The role of choice in enhanced susceptibility to drug use in drug dependence has been little studied. Here we determine the effects of alcohol dependence on the choice between alcohol and a non-drug reward, saccharin, using the discrete choice model in food-restricted male rats. We trained rats to self-administer alcohol (12% w/v) and saccharin (0.05, 0.1%), tested their choice of alcohol vs. saccharin, and determined the effects of deprivation and intertrial interval (ITI) duration on choice. We then determined the effects of alcohol dependence, induced by repeated intermittent exposure to alcohol vapor on choice of alcohol vs. saccharin (0.1%) in discrete choice trials as well as on the effects of adulteration of alcohol with quinine on choice. We trained another group of rats to self-administer intravenous (i.v.) nicotine (0.03 mg/kg/infusion) and oral saccharin (0.1%), determined their choice, and examined the roles of ITI duration and concurrent access on choice. Rats chose equivalent amounts of 0.05% saccharin and 12% alcohol, showed a stronger choice for 0.1% saccharin, and alcohol and saccharin choice were modestly decreased and increased, respectively, by deprivation. Alcohol dependence led to profound increases in the choice of alcohol over saccharin while adulteration of alcohol with quinine did not affect choice in non-dependent or dependent rats. Rats showed marked choice for 0.1% saccharin over i.v. nicotine. The strong effect that dependence had on alcohol choice is an important validation of the discrete choice procedure.

中文翻译:

酒精依赖性对酒精和糖精之间离散选择的影响。

对药物的依赖对药物的摄入和复发具有持久的影响。很少研究选择在增强对药物依赖的药物敏感性中的作用。在这里,我们在食物受限的雄性大鼠中使用离散选择模型,确定了酒精依赖对选择酒精和非药物奖励糖精之间的影响。我们训练了大鼠自我管理酒精(12%w / v)和糖精(0.05,0.1%),测试了酒精对糖精的选择,并确定了剥夺和间隔时间(ITI)持续时间对选择的影响。然后,我们确定了在离散选择试验中,反复间歇性暴露于酒精蒸气中引起的酒精依赖对酒精与糖精(0.1%)的选择以及酒精与奎宁掺假对酒精选择的影响。我们训练了另一组大鼠,以自行施用静脉内(iv)烟碱(0.03 mg / kg /输液)和口服糖精(0.1%),确定了它们的选择,并研究了ITI持续时间和选择时并发通路的作用。大鼠选择当量为0.05%的糖精和12%的酒精,对0.1%的糖精表现出更强的选择,并且通过剥夺分别适度地减少和增加了酒精和糖精的选择。酒精依赖性导致酒精的选择大大超过糖精,而酒精与奎宁的掺假并不会影响非依赖性或非依赖性大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。03毫克/公斤/滴注)和口服糖精(0.1%),确定他们的选择,并检查ITI持续时间和并发选择的作用。大鼠选择当量为0.05%的糖精和12%的酒精,对0.1%的糖精表现出更强的选择,并且通过剥夺分别适度地减少和增加了酒精和糖精的选择。酒精依赖导致酒精的选择比糖精显着增加,而酒精与奎宁的掺假并不会影响非依赖或依赖大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。03毫克/公斤/滴注)和口服糖精(0.1%),确定他们的选择,并检查ITI持续时间和并发选择的作用。大鼠选择当量为0.05%的糖精和12%的酒精,对0.1%的糖精表现出更强的选择,并且通过剥夺分别适度地减少和增加了酒精和糖精的选择。酒精依赖性导致酒精的选择大大超过糖精,而酒精与奎宁的掺假并不会影响非依赖性或非依赖性大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。并研究了ITI持续时间和并发访问的作用。大鼠选择当量为0.05%的糖精和12%的酒精,对0.1%的糖精表现出更强的选择,并且通过剥夺分别适度地减少和增加了酒精和糖精的选择。酒精依赖导致酒精的选择比糖精显着增加,而酒精与奎宁的掺假并不会影响非依赖或依赖大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。并研究了ITI持续时间和并发访问的作用。大鼠选择当量为0.05%的糖精和12%的酒精,对0.1%的糖精表现出更强的选择,并且通过剥夺分别适度地减少和增加了酒精和糖精的选择。酒精依赖导致酒精的选择比糖精显着增加,而酒精与奎宁的掺假并不会影响非依赖或依赖大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。被剥夺。酒精依赖导致酒精的选择比糖精显着增加,而酒精与奎宁的掺假并不会影响非依赖或依赖大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。被剥夺。酒精依赖导致酒精的选择比糖精显着增加,而酒精与奎宁的掺假并不会影响非依赖或依赖大鼠的选择。大鼠显示出比iv尼古丁高0.1%糖精的选择。依赖酒精选择的强烈影响是离散选择程序的重要验证。
更新日期:2018-05-22
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