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Related Experiment Videos

Action of different bran preparations on colonic function.

W O Kirwan, A N Smith, A A McConnell

    British Medical Journal
    |October 26, 1974
    PubMed
    Summary
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    Coarse bran effectively lowers pressure and transit time in patients with constipation and diverticular disease. Its larger particle size enhances water-holding capacity, making it superior for colonic disorder treatment.

    Area of Science:

    • Gastroenterology
    • Nutrition Science
    • Colorectal Health

    Background:

    • Dietary fiber, particularly bran, is often recommended for managing constipation and diverticular disease.
    • The physical characteristics of bran, such as particle size, may influence its physiological effects.

    Purpose of the Study:

    • To compare the efficacy of coarse bran versus fine bran in patients with constipation and diverticular disease.
    • To investigate the physical properties of different bran types and correlate them with clinical outcomes.

    Main Methods:

    • Two types of commercially available bran (coarse and fine) were administered to patients.
    • Intraluminal pressure and colonic transit time were measured to assess the effectiveness of each bran type.
    • Physical properties, including water-holding capacity, of the brans were analyzed.

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    Main Results:

    • Only coarse bran significantly lowered intraluminal pressure and decreased transit time.
    • Fine bran did not produce significant changes in the measured parameters at the tested dosage.
    • Coarse bran exhibited a greater water-holding capacity compared to fine bran.

    Conclusions:

    • The water-holding capacity of bran is dependent on its particle size.
    • Coarse bran's superior water-holding capacity makes it more effective for treating colonic disorders like constipation and diverticular disease.
    • Particle size is a critical factor determining the therapeutic benefits of bran in gastrointestinal health.