Protocol Number: 09-NR-0064
The purpose is to test the relationship between abdominal pain symptoms and intestinal inflammation in two groups (overweight and normal weight patients with chronic abdominal pain of unknown origin). After obtaining informed consent, an initial screening history and physical exam to ensure eligibility will be preformed. The participants' abdominal pain, psychological distress, quality of life, socio-demographic, and co-morbidities will be assessed via questionnaires. Anthropometry, vital signs, and fasting blood work will be drawn at both of the two visits to the Clinical Center of the National Institutes of Health for clinical screening labs and research purposes. There are three measures of intestinal inflammation, including fecal calprotectin, intestinal permeability, and serum cytokine IL-6 levels. A stool sample will be collected to measure fecal calprotectin. Intestinal permeability will be measured with the administration of a sugar based test solution which will be given orally to participants after an overnight fast on their second visit. Excreted urine sugar ratios, expressed per m2 of body surface area, will measure gastrointestinal permeability. Body mass and body fat analysis (plethysmography), intra-abdominal and liver ultrasound, and Fibroscan measures will also be collected on day two.
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National Institutes of Health Clinical Center
Bethesda, Maryland 20892. Last update: 01/30/2009
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