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Title: The relationship between sleep and cognitive function in patients with prediabetes and type 2 diabetes
Authors: Sunee Saetung
Hataikarn Nimitphong
Nantaporn Siwasaranond
Rungtip Sumritsopak
Panitha Jindahra
Orapitchaya Krairit
Ammarin Thakkinstian
Thunyarat Anothaisintawee
Sirimon Reutrakul
University of Illinois at Chicago
Faculty of Medicine, Ramathibodi Hospital, Mahidol University
Keywords: Biochemistry, Genetics and Molecular Biology;Medicine
Issue Date: 1-Sep-2018
Citation: Acta Diabetologica. Vol.55, No.9 (2018), 917-925
Abstract: © 2018, Springer-Verlag Italia S.r.l., part of Springer Nature. Aims: Diabetes is linked to cognitive impairment. Sleep plays a role in memory consolidation. Sleep disturbances, commonly found in patients with diabetes, were shown to be related to cognitive dysfunction. This study explored the role of sleep in cognitive function of patients with abnormal glucose tolerance. Methods: A total of 162 patients (81 type 2 diabetes and 81 prediabetes) participated. Sleep duration and sleep efficiency (an indicator of sleep quality) were obtained using 7-day actigraphy recordings. Obstructive sleep apnea (OSA) was screened using an overnight in-home monitor. Cognitive function was assessed using the Montreal Cognitive Assessment (MoCA). Three sub-scores of MoCA, visuoexecutive function, attention and delayed recall, were also analyzed. Results: Mean age was 54.8 (10.2) years. OSA was diagnosed in 123 participants (76.9%). Mean sleep duration was 6.0 (1.0) h and sleep efficiency was 82.7 (8.1) %. Sleep duration and OSA severity were not related to MoCA scores. Higher sleep efficiency was associated with higher MoCA scores (p = 0.003), and having diabetes (vs. prediabetes) was associated with lower MoCA scores (p = 0.001). After adjusting covariates, both having diabetes (vs. prediabetes) (B = − 1.137, p = 0.002) and sleep efficiency (B = 0.085, p < 0.001) were independently associated with MoCA scores. In addition, diabetes (B = − 0.608, p < 0.001) and sleep efficiency (B = 0.038, p < 0.001) were associated with visuoexecutive function. Sleep parameters were not related to delayed recall or attention scores. Conclusion: Lower sleep efficiency is independently associated with lower cognitive function in patients with abnormal glucose tolerance. Whether sleep optimization may improve cognitive function in these patients should be explored.
ISSN: 14325233
Appears in Collections:Scopus 2018

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