Hyporeactivity and Gulf War Illness
NCT00100412 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL
Last updated 2009-01-21
Summary
This research project is a follow-up to the prior VA-funded study that found that chronic fatigue reported by many Gulf War veterans may be a symptom of dysfunctional cardiovascular stress response regulation. Specifically, ill veterans had diminished autonomic responses during demanding psychosocial tasks involving high level cognitive processing and emotional stress. There was a close relationship between clinical status of ill veterans and their inability to mount an appropriate physiological response under stress. The main objective of the present investigation is to determine the specific mechanism through which this abnormality may contribute to Gulf War-related chronic fatigue. We also observed that Gulf veterans with posttraumatic stress disorder (PTSD) had the most dampened autonomic activation to stressors involving higher brain activities. The second major focus of this study is to explore the role of a psychiatric disorder, specifically PTSD, as a factor in abnormalities in stress response regulation. This aspect of the study may also provide pertinent information as to the role of stress of military deployment as a contributing factor in post-Gulf War illnesses.
Conditions
- Gulf War Syndrome
- Chronic Fatigue Syndrome
- Post-Traumatic Stress Disorder
Interventions
- DRUG
-
Graded dobutamine infusions
- DRUG
-
Graded phenylephrine injections
- BEHAVIORAL
-
Psychosocial challenge involving socioevaluative public speaking
Sponsors & Collaborators
-
US Department of Veterans Affairs
lead FED
Study Design
- Purpose
- DIAGNOSTIC
Eligibility
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 1999-10-31
- Completion
- 2002-09-30
Countries
- United States
Study Locations
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