Prenatal exposure to alcohol in adult rats: Relationships between sleep and memory deficits, and effects of glucose administration on memory

被引:30
|
作者
Stone, WS
Altman, HJ
Hall, J
ArankowskySandoval, G
Parekh, P
Gold, PE
机构
[1] UNIV VIRGINIA,DEPT PSYCHOL,CHARLOTTESVILLE,VA 22903
[2] LAFAYETTE CLIN,DEPT BEHAV ANIM RES,DETROIT,MI 48207
[3] WAYNE STATE UNIV,DEPT PSYCHOL,DETROIT,MI 48201
[4] WAYNE STATE UNIV,DEPT OBSTET & GYNECOL,DETROIT,MI 48201
关键词
prenatal alcohol exposure; sleep; memory; glucose; spontaneous alternation; radial arm maze; inhibitory avoidance;
D O I
10.1016/S0006-8993(96)00976-6
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Previous studies show that prenatal exposure to alcohol results in sleep deficits in rats, including reductions in paradoxical sleep. Little is known, however, about the extent or duration of sleep impairments beyond the neonatal period. The present experiment examined effects of prenatal exposure on sleep in young adulthood. Three-hour, daytime sleep EEGs were obtained in 6-month-old female rats prenatally exposed to alcohol. Compared to isocaloric pair-fed and ad libitum control groups, the alcohol-exposed group showed reduced paradoxical sleep. Non-paradoxical sleep did not differ between groups. Concurrent deficits were obtained in radial arm maze, but not inhibitory (passive) avoidance, performance. One year later, at the age of 18 months, alcohol-exposed rats showed deficits in spontaneous alternation behavior which were reversed by administration of glucose (100 mg/kg). Deficits in paradoxical sleep at 6 months of age were highly correlated with deficits in spontaneous alternation behavior at 18 months of age, in individual, alcohol-exposed animals. These results provide the first evidence that prenatal exposure to alcohol results in selective and persistent deficits in sleep. They also show that measures of paradoxical sleep can predict impaired memory over a large portion of the life span, and suggest that glucose can attenuate memory deficits in this population.
引用
收藏
页码:98 / 106
页数:9
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