Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults

Abstract Oxytocin (OT) levels in blood plasma and OT receptor gene (OXTRm) methylation are two crucial pieces of the endogenous OT system that have been independently associated with social cognition. Empathy is a social-cognitive skill essential for understanding others’ emotions and intentions, ma...

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Main Authors: Rebecca J. Polk, Kylie A. Wright, Tian Lin, Kathleen Krol, Allison M. Perkeybile, Hans P. Nazarloo, C. Sue Carter, Jessica Connelly, Natalie C. Ebner
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-07353-3
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author Rebecca J. Polk
Kylie A. Wright
Tian Lin
Kathleen Krol
Allison M. Perkeybile
Hans P. Nazarloo
C. Sue Carter
Jessica Connelly
Natalie C. Ebner
author_facet Rebecca J. Polk
Kylie A. Wright
Tian Lin
Kathleen Krol
Allison M. Perkeybile
Hans P. Nazarloo
C. Sue Carter
Jessica Connelly
Natalie C. Ebner
author_sort Rebecca J. Polk
collection DOAJ
description Abstract Oxytocin (OT) levels in blood plasma and OT receptor gene (OXTRm) methylation are two crucial pieces of the endogenous OT system that have been independently associated with social cognition. Empathy is a social-cognitive skill essential for understanding others’ emotions and intentions, making it vital for everyday social interactions across the lifespan. Associations of plasma OT and OXTRm levels with empathy are currently not well understood among older adults, despite this period being marked by changes in both the endogenous OT system and empathy. Tying these previously separate lines of research together, this study examined the interplay of plasma OT and OXTRm on empathy in generally healthy older adults. Plasma OT levels were not directly related to empathy but for older adults with higher OXTRm levels higher plasma OT levels were associated with lower empathy scores. These results contribute to a growing literature on the intricate role of the endogenous OT system in social cognition in aging.
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spelling doaj-art-69ffe5e0e62a449687257ed8bafc8aa32025-08-20T03:05:17ZengNature PortfolioScientific Reports2045-23222025-07-011511910.1038/s41598-025-07353-3Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adultsRebecca J. Polk0Kylie A. Wright1Tian Lin2Kathleen Krol3Allison M. Perkeybile4Hans P. Nazarloo5C. Sue Carter6Jessica Connelly7Natalie C. Ebner8Department of Psychology, University of FloridaDepartment of Psychology, University of FloridaDepartment of Psychology, University of FloridaDepartment of Psychology, University of VirginiaDepartment of Psychology, University of VirginiaDepartment of Psychology, University of VirginiaDepartment of Psychology, University of VirginiaDepartment of Psychology, University of VirginiaDepartment of Psychology, University of FloridaAbstract Oxytocin (OT) levels in blood plasma and OT receptor gene (OXTRm) methylation are two crucial pieces of the endogenous OT system that have been independently associated with social cognition. Empathy is a social-cognitive skill essential for understanding others’ emotions and intentions, making it vital for everyday social interactions across the lifespan. Associations of plasma OT and OXTRm levels with empathy are currently not well understood among older adults, despite this period being marked by changes in both the endogenous OT system and empathy. Tying these previously separate lines of research together, this study examined the interplay of plasma OT and OXTRm on empathy in generally healthy older adults. Plasma OT levels were not directly related to empathy but for older adults with higher OXTRm levels higher plasma OT levels were associated with lower empathy scores. These results contribute to a growing literature on the intricate role of the endogenous OT system in social cognition in aging.https://doi.org/10.1038/s41598-025-07353-3Plasma OxytocinEmpathyOxytocin receptor geneMethylationAging
spellingShingle Rebecca J. Polk
Kylie A. Wright
Tian Lin
Kathleen Krol
Allison M. Perkeybile
Hans P. Nazarloo
C. Sue Carter
Jessica Connelly
Natalie C. Ebner
Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
Scientific Reports
Plasma Oxytocin
Empathy
Oxytocin receptor gene
Methylation
Aging
title Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
title_full Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
title_fullStr Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
title_full_unstemmed Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
title_short Interplay of plasma Oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
title_sort interplay of plasma oxytocin and oxytocin receptor gene methylation levels on empathy in older adults
topic Plasma Oxytocin
Empathy
Oxytocin receptor gene
Methylation
Aging
url https://doi.org/10.1038/s41598-025-07353-3
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