Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0022104 (irritable bowel syndrome)
 8,033 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Functional dyspepsia is a highly prevalent disorder that accounts for 5% of visits to primary care clinicians. It frequently coexists with other gastrointestinal tract disorders, including irritable bowel syndrome and gastroesophageal reflux disease. Symptoms of functional dyspepsia, including epigastric pain, early satiety, and postprandial nausea, are nonspecific, making its diagnosis difficult. Functional dyspepsia is a heterogeneous disorder involving a number of different pathophysiologic processes, culminating in both gastrointestinal sensory and motor dysfunction. Although functional dyspepsia does not impart any increased risks to long-term health, it significantly affects both individuals and society. The economic burden of evaluating and treating functional dyspepsia is estimated to be at least $1 billion per year, and patients with functional dyspepsia experience a markedly reduced quality of life. Using the case of Ms C, we apply an evidence-based approach to highlight current knowledge in the diagnosis, evaluation, and treatment of functional dyspepsia.
JAMA 2008 Feb 06
PMID:A 32-year-old woman with chronic abdominal pain. 1816 96

Intestinal epithelial barrier function is impaired in irritable bowel syndrome patients. Claudins are highly expressed in cells with tight junctions and are involved in the intestinal epithelial barrier function. The expression pattern of tight junction proteins in diarrhea-predominant irritable bowel syndrome have not been fully elucidated. We therefore recruited 17 diarrhea-predominant irritable bowel syndrome patients and 20 healthy controls. The expression of the tight junction-related proteins was examined in the ileal, cecal, and rectal mucosa of diarrhea-predominant irritable bowel syndrome patients using real-time PCR and immunofluorescence. Claudin-2 expression was high in the ileum of diarrhea-predominant irritable bowel syndrome patients. Claudin-2 expression was the same in cecum and rectal mucosa of control and diarrhea-predominant irritable bowel syndrome patients. Similarly, the expression of clauidn-1, claudin-7, JAM-A, occludin, and ZO-1 in the ileal, cecal, and rectal mucosa did not change between control and diarrhea-predominant irritable bowel syndrome samples. Infiltration of eosinophil and mast cells in the mucosa of ileum, cecum and rectum was evaluated using immunohistochemical staining and was not affected by diarrhea-predominant irritable bowel syndrome. Claudin-2 was expressed on the apical side of villi and crypts of ileal mucosal epithelial cells. Clauidn-2 expression is upregulated in diarrhea-predominant irritable bowel syndrome patients and may contribute to the pathogenesis of this condition.
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PMID:Claudin-2 expression is upregulated in the ileum of diarrhea predominant irritable bowel syndrome patients. 2836 96