Cited by 190Neuroendocrine regulation and behaviorOlfactory and Sensory Function StudiesNeuropeptides and Animal Physiology

Oxytocin plasma concentrations after single intranasal oxytocin administration–a study in healthy men

Gossen, A., Hahn, A., Westphal, L., Prinz, S., Schultz, R.T., Gründer, G., Spreckelmeyer, K.N.·2012·Neuropeptides

Abstract

The neuropeptide oxytocin has become a subject of great interest in studies investigating human social cognition. Single intranasal administration of the hormone has been reported to have positive behavioral effects, such as increasing trust or facilitating social approach, 45-80 min after administration. However, little is still known about the long-term pharmacokinetics of oxytocin nasal spray application in humans. This study addressed the question how long oxytocin plasma levels remain elevated following nasal spray administration. Another goal was to examine the influence of oxytocin administration on endogenous steroid hormones since such alterations might modulate social behavior via an indirect way. Eight healthy Caucasian men were challenged with a single intranasal application of 26 international units of oxytocin. Changes in oxytocin blood plasma levels, as well as steroid hormone levels of progesterone, testosterone and estradiol were assessed at 5 consecutive time points over a period of 3.5 h (-5, +30, +90, +150, +210 min relative to oxytocin administration). Results gave evidence for a substantial rise of oxytocin plasma levels 30 min after intranasal administration, observed in 7 of 8 participants. Group mean oxytocin plasma level was found to have returned to baseline already 90 min post administration, though in some individuals the plasma levels was still elevated relative to sampling at post 150 min. Steroid hormone analyses yielded a slight augmentation of endogenous testosterone levels 210 min after oxytocin administration. Our data confirms previous findings that oxytocin administered as a nasal spray enters the blood circulation, elevating oxytocin plasma levels for a limited time. Our findings suggest that this time window differs between individuals, but that, for the used dose, it does not extend beyond 150 min post administration. The data further provides preliminary evidence that intranasal oxytocin has an enhancing effect on testosterone in healthy men.

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Crossref · 10.1016/j.npep.2012.07.001

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Authors
Gossen, A., Hahn, A., Westphal, L., Prinz, S., Schultz, R. T., Gründer, G., & Spreckelmeyer, K. N.
Affiliations
  • Jülich Aachen Research Alliance (DE)
  • RWTH Aachen University (DE)
  • University of Pennsylvania (US)
Corresponding author
Spreckelmeyer, K.N.
Venue
Neuropeptides
Publisher
Elsevier BV
Published
2012-10
Volume
46
Issue
5
Pages
211-215
ISSN
0143-4179 (ISSN-L)
OpenAlex
W2136974459
Cited by
189
References
21
Citations by year
2026: 9 · 2025: 8 · 2024: 7 · 2023: 9 · 2022: 14 · 2021: 16 · 2020: 18 · 2019: 11 · 2018: 22 · 2017: 13 · 2016: 16 · 2015: 17 · 2014: 12 · 2013: 15 · 2012: 1
FWCI
21.72
Type
journal article
Language
en
Open access
closed
Locations
  • Neuropeptides (publishedVersion)
  • PubMed (publishedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
oxytocin, intranasal administration, plasma oxytocin, pharmacokinetics, testosterone, steroid hormones, progesterone, estradiol, social behavior, healthy men
MeSH terms
Administration, Intranasal, Adult, Estradiol, Humans, Male, Oxytocin, Progesterone, Testosterone

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