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Elevated serum lactate associated with panic attacks induced by hyperventilation.

R J Maddock1, C S Carter, D W Gietzen

  • 1Department of Psychiatry, University of California, Davis School of Medicine, Sacramento.

Psychiatry Research
|September 1, 1991
PubMed
Summary
This summary is machine-generated.

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Panic disorder patients show elevated serum lactate levels when hyperventilation triggers panic. This metabolic change is linked to anxiety and panic symptoms, not other physiological factors.

Area of Science:

  • Neuroscience
  • Metabolic disorders
  • Psychiatry

Background:

  • Altered lactate metabolism is implicated in panic disorder.
  • Previous research indicated exaggerated serum lactate increases in panic patients post-hyperventilation during glucose infusion.

Purpose of the Study:

  • To investigate lactate metabolism alterations in panic disorder patients during hyperventilation.
  • To determine the relationship between hyperventilation-induced panic and serum lactate levels.

Main Methods:

  • 12 panic disorder patients and 12 controls underwent hyperventilation after glucose ingestion.
  • Serum lactate levels were measured and correlated with panic symptoms and physiological parameters.

Main Results:

Related Experiment Videos

  • Patients who panicked during hyperventilation showed significantly higher serum lactate increases compared to non-panicking patients and controls.
  • The lactate response positively correlated with anxiety and panic symptom severity.
  • No correlation was found between lactate response and insulin, cortisol, heart rate, pCO2, adiposity, exercise, or diet.

    • Conclusions:

    • Hyperventilation-induced panic is associated with distinct metabolic changes, specifically elevated serum lactate.
    • Lactate elevation appears to be a biomarker of panic symptom intensity during hyperventilation challenges.