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A case-control field study on the relationships among type 2 diabetes, sleepiness and habitual caffeine intake.
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- Author(s): Urry E;Urry E;Urry E;Urry E; Jetter A; Jetter A; Holst SC; Holst SC; Holst SC; Berger W; Berger W; Spinas GA; Spinas GA; Langhans W; Langhans W; Landolt HP; Landolt HP; Landolt HP
- Source:
Journal of psychopharmacology (Oxford, England) [J Psychopharmacol] 2017 Feb; Vol. 31 (2), pp. 233-242. Date of Electronic Publication: 2016 Sep 27.- Publication Type:
Journal Article; Research Support, Non-U.S. Gov't- Language:
English - Source:
- Additional Information
- Source: Publisher: Sage Publications Country of Publication: United States NLM ID: 8907828 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1461-7285 (Electronic) Linking ISSN: 02698811 NLM ISO Abbreviation: J Psychopharmacol Subsets: MEDLINE
- Publication Information: Publication: Thousand Oaks, CA : Sage Publications
Original Publication: Oxford, UK : Oxford University Press, - Subject Terms: Caffeine/*administration & dosage ; Diabetes Mellitus, Type 2/*physiopathology ; Sleep/*drug effects; Case-Control Studies ; Circadian Rhythm/drug effects ; Coffee ; Cytochrome P-450 CYP1A2/metabolism ; Diabetes Mellitus, Type 2/metabolism ; Female ; Genotype ; Humans ; Male ; Middle Aged ; Saliva/metabolism ; Surveys and Questionnaires ; Wakefulness/drug effects
- Abstract: Objectives: The purpose of this study was to examine the possible links between type 2 diabetes, daytime sleepiness, sleep quality and caffeine consumption.
Methods: In this case-control field study, comparing type 2 diabetic ( n=134) and non-type 2 diabetic ( n=230) participants, subjects completed detailed and validated questionnaires to assess demographic status, health, daytime sleepiness, sleep quality and timing, diurnal preference, mistimed circadian rhythms and habitual caffeine intake. All participants gave saliva under standardised conditions for CYP1A2 genotyping and quantification of caffeine concentration. Hierarchical linear regression analyses examined whether type 2 diabetes status was associated with caffeine consumption.
Results: Type 2 diabetic participants reported greater daytime sleepiness ( p=0.001), a higher prevalence of sleep apnoea ( p=0.005) and napping ( p=0.008), and greater habitual caffeine intake ( p<0.001), derived from the consumption of an extra cup of coffee each day. This finding was confirmed by higher saliva caffeine concentration at bedtime ( p=0.01). Multiple regression analyses revealed that type 2 diabetes status was associated with higher self-reported caffeine consumption ( p<0.02) and higher salivary caffeine ( p<0.02). Next to male sex, type 2 diabetes status was the strongest predictor of caffeine intake. Subjective sleep and circadian estimates were similar between case and control groups.
Conclusions: Type 2 diabetic patients may self-medicate with caffeine to alleviate daytime sleepiness. High caffeine intake reflects a lifestyle factor that may be considered when promoting type 2 diabetes management. - Contributed Indexing: Keywords: Vigilance; chronotype; coffee; cytochrome P450-1A2 genotype; high performance liquid chromatography; metabolism; sleep apnoea
- Accession Number: 0 (Coffee)
3G6A5W338E (Caffeine)
EC 1.14.14.1 (Cytochrome P-450 CYP1A2) - Publication Date: Date Created: 20160922 Date Completed: 20180104 Latest Revision: 20180111
- Publication Date: 20221213
- Accession Number: 10.1177/0269881116668595
- Accession Number: 27649774
- Source:
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