Help For Irritable Bowel Syndrome (IBS) - Education, Support, & Self Help for Irritable Bowel Syndrome
Heather & Company View Cart
Shop for IBSIBS Message BoardsIBS News & ReviewsStore Finder
Home
IBS Diet & Recipes
IBS Books
IBS Supplements
Yoga for IBS
Hypnosis for IBS
Tummy Teas
Get The IBS Diet Cheat Sheet
Get Trigger Foods, Safe Foods, Ten Commandments of Eating for IBS, More!

Enter First Name:

Enter Email:

We value your privacy


All Boards >> Irritable Bowel Syndrome Research Library

HeatherAdministrator

Reged: 12/09/02
Posts: 7677
Loc: Seattle, WA
Abnormalities of GI transit in bloated irritable bowel syndrome: effect of bran
      12/01/06 02:08 PM

Abnormalities of GI transit in bloated irritable bowel syndrome: effect of bran on transit and symptoms.

Hebden JM, Blackshaw E, D'Amato M, Perkins AC, Spiller RC.

Department of Gastroenterology, University Hospital Nottingham, United Kingdom.

OBJECTIVES: Bloating is an important but poorly understood symptom in irritable bowel syndrome (IBS) that is often aggravated by bran. The aim of our study was to determine whether IBS patients with bloating responded to bran differently from healthy controls.

METHODS: A total of 12 patients with IBS (according to Rome I criteria), all with moderate to severe bloating, and 12 healthy controls participated in a two way, double blind, randomized, cross-over trial of bran versus placebo (crushed biscuits) 15 g b.i.d. An average daily pain index and bloating score were derived from daily symptom diaries. On day 14, gastric emptying, small bowel transit, percent remaining in ascending colon, and geometric center of a meal marker at 24 h were calculated from scintigraphic images obtained after ingesting a Tc99m-labeled rice pudding meal with 15 g of either placebo or coarse bran. RESULTS: Results are given as median (range). Bran significantly increased the pain index and bloating (p < 0.02) in IBS patients but not controls. The most striking finding was that the small bowel transit time of the meal without bran was markedly faster in IBS patients than in controls, being 203 min (range 109-313) versus 367 min (219-543), p < 0.001. Although in controls bran accelerated small bowel transit time to 262 min (180-380), p = 0.03, and significantly reduced % remaining in the ascending colon from 22% (0-46) to 3% (0-25), p = 0.03, this was not seen in the IBS patients. Bran accelerated whole gut transit as assessed by geometric center at 24 h in both IBS patients and controls.

CONCLUSIONS: Bran accelerates small bowel transit and ascending colon clearance without causing symptoms in controls. Small bowel transit is rapid in IBS patients with bloating and, unlike in healthy control subjects, cannot be further accelerated by bran, which nevertheless aggravates symptoms of pain and bloating. We speculate that bran-induced bloating may originate in the colon rather than the small bowel.

PMID: 12358250 [PubMed - indexed for MEDLINE]

Am J Gastroenterol. 2002 Sep;97(9):2315-20.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itool=abstractplus&db=pubmed&cmd=Retrieve&dopt=abstractplus&list_uids=12358250

--------------------
Heather is the Administrator of the IBS Message Boards. She’s the author of Eating for IBS and The First Year: IBS, and the CEO of Heather's Tummy Care. Join her IBS Newsletter. Meet Heather on Facebook!

Post Extras Print Post   Remind Me!     Notify Moderator

Entire thread
Subject Posted by Posted on
* Diet HeatherAdministrator 07/14/03 01:58 PM
. * Diet, lifestyle outweigh genetic impact on gut microbiome HeatherAdministrator   03/19/18 02:39 PM
. * Fecal Profiling May Predict Dietary Response in IBS to FODMAPS Diet HeatherAdministrator   03/15/18 11:51 AM
. * Can a Western diet permanently alter the immune system? HeatherAdministrator   01/19/18 01:17 PM
. * High-fat diet leads to same intestinal inflammation as a virus HeatherAdministrator   06/23/17 04:25 PM
. * Gluten-free diet could increase cardiovascular risk in people without celiac disease HeatherAdministrator   05/09/17 01:35 PM
. * Gut microbiome profiles predict response to low FODMAP diet in IBS HeatherAdministrator   11/02/16 02:45 PM
. * Fructose malabsorption, symptom severity, IBS subtype predict response to low FODMAP diet HeatherAdministrator   06/27/16 02:44 PM
. * Fiber-Rich Diet May Boost Lung Function