Cited by 170Circadian rhythm and melatoninPancreatic function and diabetesSleep and Work-Related Fatigue

Differential effects of the circadian system and circadian misalignment on insulin sensitivity and insulin secretion in humans

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Qian, Jingyi, Dalla Man, Chiara, Morris, Christopher J., Cobelli, Claudio, Scheer, Frank A. J. L.·2018·Diabetes, Obesity and Metabolism

Abstract

Glucose tolerance is lower at night and higher in the morning. Shift workers, who often eat at night and experience circadian misalignment (i.e. misalignment between the central circadian pacemaker and the environmental/behavioural cycles), have an increased risk of type 2 diabetes. To determine the separate and relative impacts of the circadian system, behavioural/environmental cycles, and their interaction (i.e. circadian misalignment) on insulin sensitivity and β‐cell function, the oral minimal model was used to quantitatively assess the major determinants of glucose control in 14 healthy adults using a randomized, cross‐over design with two 8‐day laboratory protocols. Both protocols involved 3 baseline inpatient days with habitual sleep/wake cycles, followed by 4 inpatient days with the same nocturnal bedtime (circadian alignment) or with 12‐hour inverted behavioural/environmental cycles (circadian misalignment). The data showed that circadian phase and circadian misalignment affect glucose tolerance through different mechanisms. While the circadian system reduces glucose tolerance in the biological evening compared to the biological morning mainly by decreasing both dynamic and static β‐cell responsivity, circadian misalignment reduced glucose tolerance mainly by lowering insulin sensitivity, not by affecting β‐cell function.

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Crossref · 10.1111/dom.13391

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  • The decrease in insulin sensitivity is mostly caused by the behavioral cycle, while the circadian system dominates the deterioration in glucose tolerance and b-cell responsivity.

    “Furthermore, it has been shown that such a decrease in insulin sensitivity is mostly caused by the behavioral cycle, while the circadian system dominates the deterioration in glucose tolerance and b-cell responsivity (8,32).”

    From Interplay of Dinner Timing and <i>MTNR1B</i> Type 2 Diabetes Risk Variant on Glucose Tolerance and Insulin Secretion: A Randomized Crossover Trial (2022) · cites this paper as [32]

    The Discussion (p. not supplied) says the behavioral cycle mostly accounts for the decline in insulin sensitivity, while the circadian system dominates the decline in β-cell responsivity. The Introduction (p. not supplied) says both circadian and behavioral cycles contribute to daily glucose control; it does not establish that the circadian system dominates the deterioration in glucose tolerance overall. (LLM, conf=0.85)

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  • The circadian effect on glucose tolerance and b-cell responsivity appeared to be independent of melatonin signaling, because melatonin levels were low during the circadian evening in previous studies.

    “The circadian effect appeared to be independent of melatonin signaling, because melatonin levels were low during the circadian evening ($2000-2200 h) in the previous studies (8,32).”

    From Interplay of Dinner Timing and <i>MTNR1B</i> Type 2 Diabetes Risk Variant on Glucose Tolerance and Insulin Secretion: A Randomized Crossover Trial (2022) · cites this paper as [32]

    The Results section reports lower β-cell responsivity in the biological evening, and the paper reports a corresponding reduction in glucose tolerance. But our copy does not establish that this effect is independent of melatonin signaling or state that melatonin levels were low during the circadian evening (searched: melatonin, low melatonin levels). (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Longer sleep episodes correlate with an earlier intake of dinner/the last meal and a decreased consumption of free sugars.

    “longer sleep episodes correlate with an earlier intake of dinner/the last meal (83) as well as a decreased consumption of free sugars (173).”

    From Meal timing and its role in obesity and associated diseases (2024) · cites this paper as [83]

    Citation 83 is attached to the earlier-dinner claim; the free-sugars claim has a separate citation. The Methods (section 2.1) describe meals scheduled relative to waking, and the Results (section 3) compare metabolic responses to breakfast and dinner. Neither those passages nor the searched passages on sleep duration and meal timing report whether longer sleep episodes correlate with an earlier dinner or last meal. (LLM, conf=0.76)

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Authors
Qian, J., Dalla Man, C., Morris, C. J., Cobelli, C., & Scheer, F. A. J. L.
Affiliations
  • Brigham and Women's Hospital (US)
  • Department of Information Engineering University of Padova Padova Italy
  • University of Padua (IT)
Corresponding author
Qian, Jingyi
Venue
Diabetes, Obesity and Metabolism
Publisher
Wiley
Published
2018-07-02
Volume
20
Issue
10
Pages
2481-2485
ISSN
  • 1462-8902 (ISSN-L)
  • 1463-1326
OpenAlex
W2807200695
Cited by
170
References
25
Citations by year
2026: 25 · 2025: 11 · 2024: 19 · 2023: 30 · 2022: 19 · 2021: 15 · 2020: 38 · 2019: 10 · 2018: 3
FWCI
9.27
Type
journal article
Language
en
Open access
Locations
  • Diabetes Obesity and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
  • National Institutes of Health (R01HL094806, R01HL118601, R01DK099512, R01DK102696, R01DK105072)
  • Harvard University
  • Brigham and Women's Hospital (UL1RR025758)
  • American Diabetes Association (#1‐17‐PDF‐103)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
circadian misalignment, circadian system, insulin sensitivity, beta-cell function, insulin secretion, glucose tolerance, shift work, oral minimal model, type 2 diabetes risk, circadian phase
MeSH terms
Insulin Secretion, Adult, Blood Glucose, Circadian Rhythm, Clinical Protocols, Diabetes Mellitus, Type 2, Female, Glycated Hemoglobin, Humans, Insulin Resistance, Male, Glucose Intolerance, Cross-Over Studies, Chronobiology Disorders, Insulin-Secreting Cells

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