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Visceral and somatic hypersensitivity as evidence of central sensory sensitization occur in the majority of Irritable Bowel Syndrome (IBS) patients. We recently demonstrated abnormal endogenous pain modulation as a cause of the sensitization in IBS and identified the underlying dysfunctional neuromatrix using functional MR-imaging (fMRI). Endogenous pain mechanisms regulate, fine-tune and integrate sensory and homeostatic, including neuroendocrine, immune and autonomic nervous system processes. Specific measures of sensitization and endogenous pain modulation correlate with clinical measures of somatic and neuropathic pain, suggesting usefulness as surrogate markers for clinical pain outcomes. Validation of experimental measures as surrogate markers in IBS would provide a considerable advance in pathophysiological and therapeutic research in this pharmacoeconomically burdensome disease.
Irritable Bowel Syndrome
Escitalopram treatment, Quantitative sensory testing, Corticotrophin-releasing hormone stimulation
National University Hospital
Not yet recruiting
National University Hospital, Singapore
Published on BioPortfolio: 2014-08-27T03:30:01-0400
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Irritable Bowel Syndrome IBS
Irritable bowel syndrome (IBS) is a common but poorly understood chronic (long-term) condition where the normal functions of the bowel are disrupted. Symptoms of IBS include abdominal pain or discomfort, changes in bowel habits and bloated feelings. ...
Astroesophageal Reflux Disease (GERD) Barrett's Esophagus Celiac Disease Cholesterol Crohn's Disease Gastroenterology Hepatitis Hepatology Irritable Bowel Syndrome (IBS) Pancreatitis Peptic Ulcer Disease...
Pain is defined by the International Association for the Study of Pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage”. Some illnesses can be excruci...