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Related Concept Videos

Panic Disorder01:27

Panic Disorder

Panic disorder is an anxiety disorder characterized by recurrent and sudden minutes-long episodes of intense fear, known as panic attacks. These attacks may feel like heart attacks and often happen without warning or a specific cause. They can include symptoms such as rapid heart rate, shortness of breath, chest pain, trembling, sweating, dizziness, and a sense of helplessness. During a panic attack, individuals may feel as though they are experiencing a heart attack or are in a...
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Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat
11:18

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Published on: September 12, 2014

Effects of experimental panic on neuroimmunological functioning.

Marlies A van Duinen1, Koen R J Schruers, Gunter R L Kenis

  • 1School of Mental Health and Neurosciences, Maastricht University, The Netherlands. marlies.vanduinen@pn.unimaas.nl

Journal of Psychosomatic Research
|February 23, 2008
PubMed
Summary
This summary is machine-generated.

This study found no changes in immune system markers or function in panic disorder (PD) patients during experimentally induced panic attacks. This suggests the immune system and HPA axis may not be involved in PD etiology.

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Area of Science:

  • Neuroscience
  • Immunology
  • Psychiatry

Background:

  • Previous psychoimmunological research in panic disorder (PD) has primarily used single time-point, resting-state evaluations, yielding no robust evidence of immune system changes.
  • Panic disorder (PD) is characterized by unexpected panic attacks (PAs), necessitating research into immune responses during these acute episodes.

Purpose of the Study:

  • To investigate cytokine and acute phase protein (APP) levels and mitogen-induced cytokine secretion following experimentally induced panic attacks (PAs) in PD patients.
  • To compare immune parameters in PD patients and healthy controls during both resting conditions and experimentally induced panic.

Main Methods:

  • Eighteen PD patients and 18 matched healthy controls underwent placebo and 35% CO(2) inhalation challenges on separate days.
  • Blood samples were collected pre- and post-inhalation for cytokine and APP analysis.
  • Whole blood samples were cultured and stimulated with mitogens to assess immune system functional capacity.

Main Results:

  • Experimental panic induction via 35% CO(2) inhalation resulted in significantly higher anxiety levels in PD patients compared to controls.
  • No significant differences in serum cytokine or APP levels were observed between PD patients and controls, either at baseline or after panic induction.
  • Functional capacity of the immune system, assessed via mitogen-induced cytokine secretion, also showed no differences between groups post-challenge.

Conclusions:

  • The study found no alterations in serum levels or functional capacity of immunological parameters during experimentally provoked panic attacks in PD patients.
  • Unlike other affective disorders like depression and post-traumatic stress disorder, PD does not appear to involve significant immune system changes.
  • The findings suggest that while the bidirectional communication between the immune system and the hypothalamic-pituitary-adrenal (HPA) axis is relevant in some affective disorders, it may not be specifically implicated in the etiology of panic disorder.