期刊
DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY
卷 56, 期 7, 页码 657-664出版社
WILEY
DOI: 10.1111/dmcn.12376
关键词
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资金
- Thrasher Research Fund
- Research Down Syndrome
- Down Syndrome Research and Treatment Foundation
AIM Good-quality sleep is essential for normal learning and memory. Sleep fragmentation and disrupted sleep architecture are commonly observed throughout the lifespan of individuals with Down syndrome, a condition marked by cognitive deficits emerging within the first few months of life. While obstructive sleep apnea syndrome (OSAS) is known to contribute to the loss of sleep quality in Down syndrome, its relation to cognitive and behavioral impairment remains poorly understood. METHOD Using ambulatory polysomnography, we measured sleep in an unreferred community-based sample of 38 individuals with Down syndrome (15 males, 23 females; mean age 9y 7mo (SD 1y 9mo), range 7-12y). Cognitive outcomes were assessed with the Arizona Cognitive Test Battery, a set of psychometric measures designed and validated for this population. RESULTS Among children with Down syndrome, mean Verbal IQ score (p= 0.006) was 9 points lower in those with comorbid OSAS (apnea-hypopnea index > 1.5) than in those without OSAS, and performance on measures of cognitive flexibility was poorer (p= 0.03). In addition, those with OSAS showed increased light-stage sleep (p= 0.009) at the expense of slow-wave sleep (p= 0.04). INTERPRETATION These findings demonstrate a relation between OSAS and cognitive outcomes in Down syndrome. More work is required to fully understand the mechanisms underlying the links between poor sleep and impaired cognitive function. Overall, these findings highlight the importance of adequate sleep in typically and atypically developing populations.
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