Burmester, V; Gibson, EL; Butler, G; Bailey, A; Terry, P
(2019)
Oxytocin reduces post-stress sweet snack intake in women without attenuating salivary cortisol.
Physiol Behav, 212.
p. 112704.
ISSN 1873-507X
https://doi.org/10.1016/j.physbeh.2019.112704
SGUL Authors: Bailey, Alexis
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Abstract
Intranasal oxytocin produces anorectic effects on snack intake in men when tested in the absence of deprivation-induced hunger, but its effects on food intake in women without eating disorders have not been reported. Oxytocin may reduce food intake by reducing stress eating, since it inhibits ACTH release. The present study adopted a double-blind, repeated measures and fully concealed crossover protocol in which 38 women self-administered 24 IU of oxytocin or placebo intranasally, ate lunch, and underwent two consecutive stress tests. Snack intake was assessed 15-20 minutes after lunch, via a sham taste test. Salivary cortisol was measured throughout the test period every 15 minutes. Oxytocin significantly reduced sweet fatty snack intake independently of any effect on salivary cortisol, which declined over time at a similar rate after either drug or placebo. Ratings of sweet taste were slightly reduced by oxytocin, but only in self-reported stress eaters. These results differ from previous studies with men that found an effect of oxytocin on postprandial cortisol levels. However, previous research assayed the less active form of plasma cortisol and did not control for protein intake, which can drive elevated cortisol. The finding that oxytocin reduces snack intake in females after acute stress has important implications for appetite regulation and its treatment in obese people and in those with eating disorders.
Item Type: | Article | ||||||||
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Additional Information: | © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | ||||||||
Keywords: | Anorectic, Cortisol, Hedonic eating, Oxytocin, Reward, 06 Biological Sciences, 11 Medical And Health Sciences, 17 Psychology And Cognitive Sciences, Behavioral Science & Comparative Psychology | ||||||||
SGUL Research Institute / Research Centre: | Academic Structure > Institute of Medical & Biomedical Education (IMBE) Academic Structure > Institute of Medical & Biomedical Education (IMBE) > Centre for Biomedical Education (INMEBE) |
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Journal or Publication Title: | Physiol Behav | ||||||||
ISSN: | 1873-507X | ||||||||
Language: | eng | ||||||||
Dates: |
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Publisher License: | Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0 | ||||||||
PubMed ID: | 31628930 | ||||||||
Go to PubMed abstract | |||||||||
URI: | https://openaccess.sgul.ac.uk/id/eprint/111295 | ||||||||
Publisher's version: | https://doi.org/10.1016/j.physbeh.2019.112704 |
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