Psychiatry Investig.  2021 Oct;18(10):1018-1024. 10.30773/pi.2021.0040.

An Investgation About the Relationship Between Vasopressin and Oxytocin in Persistent Type Functional Neurological Symptom Disorder

Affiliations
  • 1Dr. Abdurrahman Yurtaslan Oncology Research and Training Hospital Psychiatry Departmant, University Health Sciences, Ankara, Turkey
  • 2Inonu University, Medicine Faculty, Psychiatry Departmant, Malatya, Turkey

Abstract


Objective
Functional neurogical symptom disorder (FNSD) is a somatic symptom disorder with loss of voluntary motor or sensory functions, which cannot be explained by another medical condition. The study aimed to examine the relationship of vasopressin and oxytocin in persistent type FNSD.
Methods
This study included 27 female patients between the ages of 20–57 who were diagnosed with FNSD according to DSM-5 and 27 healthy controls matched in terms of age and gender. Serum vasopressin and oxytocin levels were measured twice on the same day in fasting blood samples and the results were compared statistically.
Results
Vasopressin were lower in patients compared to controls while there was no difference between oxytocin levels. Childhood traumas were more common in patient group, and mean oxytocin level was lower in patients who exposed to childhood trauma, compared to controls. No significant difference was found between the groups in terms of vasopressin.
Conclusion
Changes in vasopressin and oxytocin balance in the pathogenesis of persistant FNSD, may likely to lead to physiological and behavioral consequences. Lower oxytocin levels may also be a marker of exposure to childhood trauma in FNSD. These neuropeptides plays important role in neuroendocrine balance of emotional behavior.

Keyword

Oxytocin; Vasopressin; Functional neurological symptom disorder; Childhood trauma
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