Plasma Oxytocin Levels in Body-Focused Repetitive Behavior Disorders and Their Relationship with Disease Severity, Attachment and Emotion Regulation

Özlem Nur AKGÜL, Efruz PİRDOĞAN AYDIN, Kayıhan Oğuz KARAMUSTAFALIOĞLU, Ömer Akil ÖZER, Pınar YILMAZ, Erdinç SERİN
2025 December - 62 (4)
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Highlights

• Lower plasma oxytocin in BFRBDs vs. controls suggests
role in pathophysiology
• BFRBD patients showed more insecure attachment and
emotion regulation difficulties
• Lower oxytocin linked to severe skin picking, highlighting
its role in symptoms.
• Findings suggest exploring oxytocin’s therapeutic
potential for BFRBDs


Abstract

Introduction: Oxytocin (OXT) is thought to play a role in processes
such as social bonding, empathy, and emotional regulation, as well as in
the pathophysiology of repetitive/grooming behaviors. The aim of this
study is to compare plasma OXT levels in individuals with body-focused
repetitive behavior disorder (BFRBD) to those in a healthy control group,
and to examine the relationship of OXT with disease severity, emotional
regulation, and attachment styles.
Methods: This study included 35 patients aged 18–45 diagnosed with
BFRBD who visited the psychiatry outpatient clinic, and 35 healthy
controls with matched age, gender, and partner-status. Participants
were assessed using the Beck depression inventory (BDI), difficulties in
emotion regulation scale (DERS-16), experiences in close relationships
inventory-II (ECR-II), and Hendrick relationship satisfaction scale (HRSS),
and plasma OXT levels were measured.
Results: Oxytocin levels in patients with BFRBD were found to be
significantly lower than in healthy controls (p<0.001). Patients had higher
scores for insecure attachment and difficulties in emotional regulation
(p<0.01). Additionally, a negative correlation was observed between the
severity of skin-picking behavior and OXT levels (p=0.033).
Conclusion: The insufficiency of OXT levels in BFRBD patients and its
association with disease severity suggest that OXT may play a role in the
psychopathology of BFRBD. Further research is needed to explore the
role of OXT and its therapeutic potential in this disorder.
Keywords: Attachment, body-focused repetitive behaviors, emotional
regulation, oxytocin