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Researchers Hunt Causes of Non-responsive Celiac Disease

Celiac.com 03/18/2009 - A recent study used lactulose hydrogen-breath assays to show that small intestine bacterial overgrowth (SIBO) is likely a routine cause of non-responsive celiac disease.

A team of researchers from the Mayo Clinic College of Medicine recently set out to assess the rates and significance of SIBO in celiac disease based on the results of quantitative culture of intestinal aspirate.

The team was made up of Alberto Rubio-Tapia, M.D., Susan H. Barton, M.D., Joseph A. Murray, M.D., of the Mayo’s Division of Gastroenterology and Hepatology, and Jon E. Rosenblatt, M.D., of the Mayo’s department of Laboratory Medicine and Pathology. Their efforts were supported by the American College of Gastroenterology (ACG) International Training Grant 2006 (ART) and the NIH grants DK-57892 and DK-070031 (JAM).

Currently, the rate of SIBO in celiac disease diagnosed by quantitative culture of intestinal aspirate is not known. The team set out to assess the rate and determine the significance of SIBO in celiac disease based on the results of quantitative culture of intestinal aspirate.

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The team set out to examine the causes of non-responsive celiac disease by looking at people with celiac disease in whom culture of intestinal aspirate was assessed for the presence of both aerobic and anaerobic bacteria. They defined bacterial overgrowth as culture >105 colony forming units/mL.

In all, they evaluated 149 people with biopsy-confirmed celiac disease. They took intestinal aspirate samples from 79 (53%) patients with non-responsive celiac disease, 47 (32%) as initial work-up for mal-absorption, and in 23 (15%) with asymptomatic treated celiac disease.

The team diagnosed 14 cases of SIBO (9.3%), nine cases of non-responsive celiac disease (11%), five cases at initial work-up for mal-absorption (11%), and 0 cases in asymptomatic treated celiac disease. Patients with a positive culture showed signs of worse mal-absorption. 67% of patients with both non-responsive CD and bacterial overgrowth showed a coexistent disorder.

The results showed that nearly 1 in 10 celiac patients had SIBO as diagnosed by quantitative culture of intestinal aspirate (9.3%). This figure included both patients with symptomatic treated or untreated CD. This shows that SIBO may exist along with other maladies associated with non-responsive celiac disease.

Journal of Clinical Gastroenterology: Volume 43(2)February 2009pp 157-161

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4 Responses:

 
barbara l. frazier
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said this on
25 Mar 2009 5:25:41 AM PDT
This is the best site for gluten free information. Thank you for making it available to us.

 
Deborah Cox
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said this on
25 Mar 2009 5:36:10 AM PDT
Very informative - I have biopsy-confirmed celiac as well.

 
Kathleen Schweiker
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said this on
25 Mar 2009 6:13:25 AM PDT
Would like more information. What other conditions were present among comorbid and asymptomatic patients, particularly if any were diagnosed with Chron's disease.

 
Janis
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said this on
25 Mar 2009 7:45:36 AM PDT
Does SIBO cause bad breath and 'coverage of stuff' on your tongue that I have to use a tongue scarper on daily.




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