Cited by 75Circadian rhythm and melatoninAdipose Tissue and MetabolismLipid metabolism and biosynthesis

Diurnal Variation in Insulin Sensitivity of Glucose Metabolism Is Associated With Diurnal Variations in Whole-Body and Cellular Fatty Acid Metabolism in Metabolically Normal Women

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Yoshino, Jun, Almeda-Valdes, Paloma, Patterson, Bruce W., Okunade, Adewole L., Imai, Shin-ichiro, Mittendorfer, Bettina, Klein, Samuel·2014·The Journal of Clinical Endocrinology & Metabolism

Abstract

CONTEXT: The mechanism(s) responsible for diurnal variations in insulin sensitivity of glucose metabolism in healthy people are unclear. OBJECTIVE: The objective of the study was to evaluate whether diurnal variations in whole-body and cellular fatty acid metabolism could contribute to evening insulin resistance in metabolically normal people. SUBJECTS AND DESIGN: We measured plasma the free fatty acid (FFA) concentration, palmitate kinetics, and skeletal muscle expression of genes involved in fatty acid metabolism at breakfast (7:00 am) and dinner (7:00 pm) in 13 overweight (body mass index 27.8 ± 1.2 kg/m(2)) but metabolically normal, women. RESULTS: Plasma FFA concentration was approximately 30% greater just before consuming dinner than breakfast (P < .05) and remained greater after dinner than breakfast (FFA areas under the curve: 0.88 ± 0.33 and 0.51 ± 0.09 μmol/mL × 4 h, P = .001). However, adipose tissue lipolytic activity was not different in the evening and in the morning. Skeletal muscle expression of genes that regulate fatty acid oxidation were 38-82% lower, whereas genes involved in de novo lipogenesis were 51%-87 % higher before dinner than before breakfast (all P < .05), and these changes were associated with diurnal variation in the muscle expression of core clock genes that regulate fatty acid metabolism. CONCLUSION: Metabolically normal women demonstrate diurnal variations in fatty acid metabolism, manifested by an increase in circulating FFAs, presumably derived from previous meal consumption rather than lipolysis of adipose tissue triglycerides, and a shift in muscle fatty acid metabolism from oxidation to lipogenesis. These metabolic alterations could be responsible for the known evening decline in insulin sensitivity.

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Crossref · 10.1210/jc.2014-1579

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  • Acute rises in circulating NEFA in healthy people cause or are linked to insulin resistance.

    “Acute elevation in circulating NEFA levels in healthy individuals has been linked to insulin resistance in multiple investigations [10–13].”

    From Sleep restriction increases free fatty acids in healthy men (2015) · cites this paper as [13]

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Authors
Yoshino, J., Almeda-Valdes, P., Patterson, B. W., Okunade, A. L., Imai, S.-I., Mittendorfer, B., & Klein, S.
Affiliations
  • Center for Human Nutrition and Atkins Center of Excellence in Obesity Medicine (J.Y., P.A.-V., B.W.P., A.L.O., S.I., B.M., S.K.), St Louis, Missouri 63110
  • Washington University in St. Louis (US)
Corresponding author
Klein, Samuel
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2014-09-01
Volume
99
Issue
9
Pages
E1666-E1670
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2161635288
Cited by
75
References
21
Citations by year
2026: 9 · 2025: 7 · 2024: 7 · 2023: 6 · 2022: 6 · 2021: 6 · 2020: 4 · 2019: 2 · 2018: 4 · 2017: 10 · 2016: 10 · 2015: 3 · 2014: 1
FWCI
3.90
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p60dk020579-35, KL2TR000450, 5p41rr000954-34, UL1TR000448)
  • National Institute of General Medical Sciences (R24GM136766, P41GM103422)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK37948, DK56341, R01DK037948, DK‐020579, P60-DK-020579, P30DK056341, P30DK020579)
  • National Center for Research Resources (P41-RR000954, RR 00954)
  • National Center for Advancing Translational Sciences (TR 000450)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
diurnal variation, insulin sensitivity, insulin resistance, fatty acid metabolism, free fatty acids, adipose tissue lipolysis, skeletal muscle, fatty acid oxidation, de novo lipogenesis, clock genes, meal timing, overweight women, glucose metabolism
MeSH terms
Adipose Tissue, Adult, Blood Glucose, Circadian Rhythm, Eating, Fatty Acids, Nonesterified, Female, Humans, Hydrocortisone, Insulin, Insulin Resistance, Middle Aged, Palmitates, Reference Values, Muscle, Skeletal, Lipogenesis, Overweight

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