PMID- 30346599 OWN - NLM STAT- MEDLINE DCOM- 20191218 LR - 20191218 IS - 1550-9109 (Electronic) IS - 0161-8105 (Linking) VI - 42 IP - 1 DP - 2019 Jan 1 TI - Objective sleep duration is associated with cognitive deficits in primary insomnia: BDNF may play a role. LID - 10.1093/sleep/zsy192 [doi] AB - STUDY OBJECTIVES: Objective sleep duration has been linked to insomnia severity. However, cognitive functions of people with insomnia with different sleep durations have been seldom addressed. Brain-derived neurotrophic factor (BDNF) has an important role in cognitive function and has been linked to clinical insomnia recently. The present study aimed to evaluate the comprehensive cognitive functions in people with primary insomnia with different objective sleep durations, and further examine the involvement of peripheral BDNF. METHODS: Fifty-seven people with insomnia were subdivided into short sleep duration (SSD, sleep time < 6 hr) group and normal sleep duration (NSD, sleep time >/= 6 hr) group based on polysomnography data. Twenty-nine healthy controls (HC) were matched on age, gender, and education. Cognitive function was assessed using a comprehensive and sensitive neuropsychological test battery. Both objective and subjective insomnia statuses were estimated. Serum BDNF level was measured using enzyme-linked immune sorbent assay. RESULTS: Compared with HC, the SSD group showed impaired neuropsychological performances in spatial span, brief visuospatial memory test, fluency, managing emotions, and continuous performance tests. In contrast, NSD had bad performance only in brief visuospatial memory test and continuous performance tests, and relatively better than SSD group in the latter test. People with SSD insomnia but not NSD had decreased BDNF levels compared with HC, and neuropsychological performance was positively correlated with BDNF levels only in SSD group. CONCLUSIONS: Primary insomnia was associated with impaired neuropsychological performance, and the impairment might be related to decreased objective sleep duration. In addition, decreased peripheral BDNF might mediate the impaired cognitive functions of people with insomnia with SSD. FAU - Fan, Teng-Teng AU - Fan TT AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. FAU - Chen, Wen-Hao AU - Chen WH AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. FAU - Shi, Le AU - Shi L AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. AD - National Institute on Drug Dependence and Beijing Key laboratory of Drug Dependence Research, Peking University, Beijing, China. FAU - Lin, Xiao AU - Lin X AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. AD - Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China. FAU - Tabarak, Serik AU - Tabarak S AD - Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China. FAU - Chen, Si-Jing AU - Chen SJ AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. FAU - Que, Jian-Yu AU - Que JY AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. FAU - Bao, Yan-Ping AU - Bao YP AD - National Institute on Drug Dependence and Beijing Key laboratory of Drug Dependence Research, Peking University, Beijing, China. FAU - Tang, Xiang-Dong AU - Tang XD AD - Sleep Medicine Center, West China Hospital, Sichuan University, Sichuan 610041, China. FAU - Shi, Jie AU - Shi J AD - National Institute on Drug Dependence and Beijing Key laboratory of Drug Dependence Research, Peking University, Beijing, China. FAU - Lu, Lin AU - Lu L AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. AD - Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China. FAU - Sun, Hong-Qiang AU - Sun HQ AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. FAU - Liu, Jia Jia AU - Liu JJ AD - Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China. AD - National Institute on Drug Dependence and Beijing Key laboratory of Drug Dependence Research, Peking University, Beijing, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Sleep JT - Sleep JID - 7809084 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adult MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cognition/*physiology MH - Cognitive Dysfunction/*physiopathology MH - Female MH - Humans MH - Male MH - Memory/physiology MH - Middle Aged MH - Neuropsychological Tests MH - Play and Playthings MH - Polysomnography MH - Sleep/*physiology MH - Sleep Initiation and Maintenance Disorders/*physiopathology/*psychology MH - Surveys and Questionnaires MH - Time Factors EDAT- 2018/10/23 06:00 MHDA- 2019/12/19 06:00 CRDT- 2018/10/23 06:00 PHST- 2018/01/18 00:00 [received] PHST- 2018/10/23 06:00 [pubmed] PHST- 2019/12/19 06:00 [medline] PHST- 2018/10/23 06:00 [entrez] AID - 5140131 [pii] AID - 10.1093/sleep/zsy192 [doi] PST - ppublish SO - Sleep. 2019 Jan 1;42(1). doi: 10.1093/sleep/zsy192.