Cited by 129Regulation of Appetite and ObesityAdipose Tissue and MetabolismPancreatic function and diabetes

Intranasal Insulin Enhances Postprandial Thermogenesis and Lowers Postprandial Serum Insulin Levels in Healthy Men

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Benedict, Christian, Brede, Swantje, Schiöth, Helgi B., Lehnert, Hendrik, Schultes, Bernd, Born, Jan, Hallschmid, Manfred·2011·Diabetes

Abstract

OBJECTIVE: Animal studies indicate a prominent role of brain insulin signaling in the regulation of peripheral energy metabolism. We determined the effect of intranasal insulin, which directly targets the brain, on glucose metabolism and energy expenditure in humans. RESEARCH DESIGN AND METHODS: In a double-blind, placebo-controlled, balanced within-subject comparison, 19 healthy normal-weight men (18–26 years old) were intranasally administered 160 IU human insulin after an overnight fast. Energy expenditure assessed via indirect calorimetry and blood concentrations of glucose, insulin, C-peptide, and free fatty acids (FFAs) were measured before and after insulin administration and the subsequent consumption of a high-calorie liquid meal of 900 kcal. RESULTS: Intranasal insulin, compared with placebo, increased postprandial energy expenditure, i.e., diet-induced thermogenesis, and decreased postprandial concentrations of circulating insulin and C-peptide, whereas postprandial plasma glucose concentrations did not differ from placebo values. Intranasal insulin also induced a transient decrease in prandial serum FFA levels. CONCLUSIONS: Enhancing brain insulin signaling by means of intranasal insulin administration enhances the acute thermoregulatory and glucoregulatory response to food intake, suggesting that central nervous insulin contributes to the control of whole-body energy homeostasis in humans.

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  • In healthy normal-weight men, IN insulin 160 IU compared with placebo increases postprandial thermogenesis assessed via indirect calorimetry.

    “In healthy normal-weight men, IN insulin (160 IU) vs. placebo increases postprandial thermogenesis assessed via indirect calorimetry”

    From Intranasal insulin (2021) · cites this paper as [67]

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Authors
Benedict, C., Brede, S., Schiöth, H. B., Lehnert, H., Schultes, B., Born, J., & Hallschmid, M.
Affiliations
  • Uppsala University (SE)
  • University of Lübeck (DE)
  • Kantonsspital St. Gallen (CH)
  • Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany;
Corresponding author
Benedict, Christian
Venue
Diabetes
Published
2010-09-28
Volume
60
Issue
1
Pages
114-118
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2101284761
Cited by
129
References
26
Citations by year
2026: 2 · 2025: 6 · 2024: 9 · 2023: 4 · 2022: 9 · 2021: 9 · 2020: 8 · 2019: 3 · 2018: 12 · 2017: 15 · 2016: 3 · 2015: 11 · 2014: 10 · 2013: 12 · 2012: 8
FWCI
4.05
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft
  • Fondation pour la Recherche Médicale
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
Keywords
intranasal insulin, brain insulin signaling, postprandial thermogenesis, diet-induced thermogenesis, energy expenditure, postprandial insulin, C-peptide, free fatty acids, glucose metabolism, energy homeostasis, dietary intake
MeSH terms
Administration, Intranasal, Adolescent, Adult, Blood Glucose, Energy Intake, Energy Metabolism, Fatty Acids, Nonesterified, Humans, Insulin, Male, Reference Values, Postprandial Period, Thermogenesis, Young Adult, Insulin, Regular, Pork

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