The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.
Influences of Breakfast on Clock Gene Expression and Postprandial Glycemia in Healthy Individuals and Individuals With Diabetes: A Randomized Clinical Trial
Abstract
OBJECTIVE The circadian clock regulates glucose metabolism by mediating the activity of metabolic enzymes, hormones, and transport systems. Breakfast skipping and night eating have been associated with high HbA1c and postprandial hyperglycemia after lunch and dinner. Our aim was to explore the acute effect of breakfast consumption or omission on glucose homeostasis and clock gene expression in healthy individuals and individuals with type 2 diabetes. RESEARCH DESIGN AND METHODS In a crossover design, 18 healthy volunteers and 18 volunteers with 14.5 ± 1.5 years diabetes, BMI 30.7 ± 1.1 kg/m2, and HbA1c 7.6 ± 0.1% (59.6 ± 0.8 mmol/mol) were randomly assigned to a test day with breakfast and lunch (YesB) and a test day with only lunch (NoB). Postprandial clock and clock-controlled gene expression, plasma glucose, insulin, intact glucagon-like peptide 1 (iGLP-1), and dipeptidyl peptidase IV (DPP-IV) plasma activity were assessed after breakfast and lunch. RESULTS In healthy individuals, the expression level of Per1, Cry1, Rorα, and Sirt1 was lower (P < 0.05) but Clock was higher (P < 0.05) after breakfast. In contrast, in individuals with type 2 diabetes, Per1, Per2, and Sirt1 only slightly, but significantly, decreased and Rorα increased (P < 0.05) after breakfast. In healthy individuals, the expression level of Bmal1, Rorα, and Sirt1 was higher (P < 0.05) after lunch on YesB day, whereas the other clock genes remained unchanged. In individuals with type 2 diabetes, Bmal1, Per1, Per2, Rev-erbα, and Ampk increased (P < 0.05) after lunch on the YesB day. Omission of breakfast altered clock and metabolic gene expression in both healthy and individuals with type 2 diabetes. CONCLUSIONS Breakfast consumption acutely affects clock and clock-controlled gene expression leading to normal oscillation. Breakfast skipping adversely affects clock and clock-controlled gene expression and is correlated with increased postprandial glycemic response in both healthy individuals and individuals with diabetes.
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“due to effects directly on clock genes and time-controlled genetic expression [285].”
From Effects of diet, lifestyle, Chrononutrition and alternative dietary interventions on postprandial Glycemia and insulin resistance (2022) · cites this paper as [285]
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Jamshed, H., Beyl, R., Della Manna, D., Yang, E., Ravussin, E., & Peterson, C. (2019) · Nutrients · doi:10.3390/nu11061234 · Cited by 664
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Skipping breakfast is associated with overweight and obesity: A systematic review and meta-analysis
Ma, X., Chen, Q., Pu, Y., Guo, M., Jiang, Z., Huang, W., Long, Y., & Xu, Y. (2020) · Obesity Research & Clinical Practice · doi:10.1016/j.orcp.2019.12.002 · Cited by 293
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Metadata
- Authors
- Jakubowicz, D., Wainstein, J., Landau, Z., Raz, I., Ahren, B., Chapnik, N., Ganz, T., Menaged, M., Barnea, M., Bar-Dayan, Y., & Froy, O.
- Affiliations
- Tel Aviv University (IL)
- Hebrew University of Jerusalem (IL)
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
- Weizmann Institute of Science (IL)
- Diabetes Unit, Wolfson Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Holon, Israel
- Corresponding author
- Jakubowicz, Daniela
- Froy, Oren
- Venue
- Diabetes Care
- Publisher
- American Diabetes Association
- Published
- 2017-08-22
- Volume
- 40
- Issue
- 11
- Pages
- 1573-1579
- ISSN
- 0149-5992 (ISSN-L)
- 1935-5548
- OpenAlex
- W2745443951
- Cited by
- 178
- References
- 39
- Citations by year
- 2026: 10 · 2025: 19 · 2024: 28 · 2023: 24 · 2022: 25 · 2021: 26 · 2020: 21 · 2019: 16 · 2018: 8 · 2017: 1
- FWCI
- 7.69
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Diabetes Care (publishedVersion)
- PubMed (publishedVersion)
- Lund University Publications (Lund University) (submittedVersion)
- Funders
- Ministry of Health, Israel (3-0000-11406)
- Topics
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Health Sciences › Medicine › Physiology (medical) › Dietary Effects on Health
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Keywords
- breakfast skipping, clock genes, circadian clock, postprandial blood glucose, type 2 diabetes, glucose homeostasis, Per1, Per2, Bmal1, RORα, SIRT1, glucagon-like peptide-1, dipeptidyl peptidase IV, insulin, circadian rhythm
- MeSH terms
- Adult, Aged, Blood Glucose, Diabetes Mellitus, Type 2, Gene Expression Regulation, Glycated Hemoglobin, Homeostasis, Humans, Insulin, Middle Aged, Body Mass Index, Cross-Over Studies, Postprandial Period, Glucagon-Like Peptide 1, AMP-Activated Protein Kinases, Sirtuin 1, ARNTL Transcription Factors, Period Circadian Proteins, Circadian Clocks, Breakfast
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