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Endocrine responses...
Endocrine responses to nocturnal eating : Possible implications for night work
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- Holmbäck, Ulf C. (author)
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Department of Medical Sciences, Nutrition, Uppsala University Hospital
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- Forslund, Anders H. (author)
- Department of Medical Sciences, Nutrition, Uppsala University Hospital
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- Löwden, Arne (author)
- Stockholm University, Stress Research Institute, Institutet för psykosocial medicin (IPM), Avdelningen för stressforskning, Karolinska institutet
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- Forslund, Jeanette M. (author)
- Department of Medical Sciences, Nutrition, Uppsala University Hospital
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- Åkerstedt, Torbjörn (author)
- Karolinska Institutet,National Institute for Psychosocial Factors and Health, Karolinska Institutet, Avdelningen för stressforskning, Karolinska institutet, Department of Biosciences, Unit for Preventive Nutrition, Karolinska Institute
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- Lennernäs, Maria, 1956- (author)
- Department of Medical Sciences, Nutrition, Uppsala University Hospital
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- Hambræus, Leif M. (author)
- Department of Biosciences, Unit for Preventive Nutrition, Karolinska Institute
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- Stridsberg, Mats (author)
- Department of Medical Science and Clinical Chemistry, Uppsala University Hospital
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2003
- 2003
- English.
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In: European Journal of Nutrition. - : Springer Science and Business Media LLC. - 1436-6207 .- 1436-6215. ; 42:2, s. 75-83
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Background: Night work is becoming more common and shift workers display several metabolic disturbances. Aim: To study the endocrine responses in relation to time of day during a 24-h period and how dietary macronutrient composition affects these responses. Design: Seven males (26-43 y and 19.9-26.6 kg · m-2) were studied in a crossover design. Isocaloric diets described as highcarbohydrates (HC; 65 energy percent (E%) carbohydrates and 20E% fat) or high-fat (HF; 40E% carbohydrates and 45E% fat) were given. After a 6-day diet adjustment period, the subjects were kept awake for 24 h in a metabolic unit and were served an isocaloric meal (continuation of respective diet) every 4-h. Blood samples were taken throughout the 24-h period. Results: Insulin and leptin responses to meal intake differed with respect to time of day (p ≤ 0.05). Time of day affected glucagon, thyroid stimulating hormone (TSH), free thyroxin (fT4), total triiodothyronine (tT3), cortisol, chromogranin A (CgA) and pancreatic polypeptide (PP) concentrations (p ≤ 0.05). Meal intake decreased cortisol concentration after meals at 0800, 1200 and 0400 but not at 1600, 2000 and 0000 h. The PP's postprandial increase was greater during 0800-1600 h compared to 2000-0800 h. With the HC meals, lower glucagon and CgA concentrations (p ≤ 0.05), and a tendency for lower tT3 concentrations (p = 0.053) were observed compared to the HF meals. Conclusion: Insulin, PP, TSH, fT4, cortisol and leptin responses to meal intake differed with respect to time of day. The decreased evening/nocturnal responses of cortisol and PP to meal intake indicate that nocturnal eating and night work might have health implications.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Annan hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Other Health Sciences (hsv//eng)
Keyword
- Circadian
- Cortisol
- Meal
- Pancreatic polypeptide
- Postprandial
- Thyroid
- Health Science
- Hälsovetenskap
Publication and Content Type
- ref (subject category)
- art (subject category)
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