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Irritable Bowel Syndrome (IBS) is characterized by functional disturbances in the gastrointestinal system, presenting a cluster of symptoms without evident structural or biochemical abnormalities. It primarily affects the large intestine and may cause abdominal pain, bloating, excessive gas, diarrhea, constipation, or both.
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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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Pathogenic Factors in Postinfectious Irritable Bowel Syndrome - An Update.

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    Up to 30% of patients experience prolonged gastrointestinal issues post-gastroenteritis. New Rome IV criteria recognize postinfectious irritable bowel syndrome (PI-IBS) as a distinct entity linked to mucosal inflammation.

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    Area of Science:

    • Gastroenterology
    • Microbiology
    • Immunology

    Background:

    • Acute infectious gastroenteritis can lead to persistent gastrointestinal symptoms in a significant patient subset.
    • A portion of these patients meet diagnostic criteria for postinfectious irritable bowel syndrome (PI-IBS).
    • Historically, PI-IBS diagnosis relied on the Rome III criteria.

    Purpose of the Study:

    • To outline the diagnostic evolution of PI-IBS.
    • To highlight the impact of the Rome IV criteria on PI-IBS classification.
    • To underscore the proposed underlying pathophysiology of PI-IBS.

    Main Methods:

    • Review of diagnostic criteria evolution for PI-IBS.
    • Analysis of changes introduced by Rome IV criteria.
    • Examination of the role of chronic mucosal inflammation in PI-IBS pathogenesis.

    Main Results:

    • The Rome IV criteria represent an update to the diagnostic standards for PI-IBS.
    • PI-IBS is now recognized as a specific entity within the Rome IV framework.
    • Chronic mucosal inflammation, triggered by enteric infection, is implicated in the persistent symptoms of PI-IBS.

    Conclusions:

    • The Rome IV criteria offer a refined approach to diagnosing PI-IBS.
    • Understanding the role of mucosal inflammation is key to comprehending PI-IBS.
    • This classification acknowledges the specific pathophysiology of PI-IBS following infection.