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Kids with Celiac Disease Show Distinctive Microbial Signature


Celiac.com 06/25/2010 - Recent scientific evidence suggests that gut microbiota may play a significant role in celiac disease. To further examine the role of gut microbiota in celiac disease, an Italian research team conducted a study of children with celiac disease.

The research team included Serena Schippa, Valerio Iebba, Maria Barbato, Giovanni di Nardo,Valentina Totino, Monica Proietti Checchi, Catia Longhi, Giulia Maiella, Salvatore Cucchiara, Maria Pia Conte.

To gain a better understanding of any role played by dominant duodenal microbiota, the team analyzed the mucosa-associated microbiota of 20 children with celiac disease, both before and after treatment with a gluten-free diet. The compared the results with a group of 10 control subjects.

The team extracted total DNA from duodenal biopsies and amplification products of 16S ribosomal DNA. They then compared the results using temporal temperature gradient gel electrophoresis (TTGE). They assessed TTGE profiles by statistical multivariate analysis.

They found that, on average, patients with active celiac disease showed a significantly higher number of bands in TTGE profiles (P<0.0001) (n.b. 16.7 +/- 0.7), compared to patients with treated, or inactive disease (n.b. 13.2 +/- 0.8) compared to control subjects (n.b. 3.7 +/- 1.3).

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Average inter-individual similarity indices were 54.9% +/- 14.9% for active disease patients, 55.6% +/- 15.7% for treated (inactive) celiac disease, and 21.8% +/- 30.16% for controls. Similarity index between celiac children before and after treatment with gluten-free diet was 63.9% +/- 15.8%.

Variation in microbiota biodiversity between active and remission state was P=0.000224. Between active celiac disease and control subjects, variation was  P<0.001.

Patients with celiac disease showed higher populations of Bacteroides vulgatus and Escherichia coli, compared to control subjects (P<0.0001).

Overall, the results demonstrate a peculiar microbial TTGE array, coupled with substantially greater biodiversity of duodenal mucosa in children with celiac disease.

Further study is needed to assess any possible pathophysiological role for these microbial differences.

Source: BMC Microbiology 2010, 10:175

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2 Responses:

 
Clarkie
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said this on
28 Jun 2010 8:19:46 PM PDT
I'm having trouble deciding what this study implies. Can't tell whether it suggests that following a gluten-free diet returns the stomach to normal or not.

 
Diane minnard
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said this on
28 Jun 2010 10:32:14 PM PDT
I think it's great I have had celiac since 1991. I hope we can get over this. Very hard to eat the food that we can normally.




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Color me confused. I went to Costco yesterday and there were 2 products there that had GLUTEN FREE plastered on the box but then in the ingredients was a: May contain wheat. How is this possible? How can they still put gluten-free on the box? We should be able to trust gluten-free labeling no?? And second question: How many of you would still buy that item? I REALLY wanted to buy the Island Way Sorbet for my daughter as it is her FAVE. But I didn't want to take the risk. Maybe when she is healthier? I mean it is SORBET?! LOL So frustrating!

JMG I have never laughed so hard! This was the best epic comment I've read! Thankyou so much! Your all teaching me so much! Love the 'my glass to go' idea!! I will be adopting this... can't believe the mucky glasses we must be drinking from! Shocking! Im still baffled how so many people don't understand cross contamination i.e. The crumbs on the work surface to cut the lime for your tasty beverage! Your all amazing Thankyou x

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I will just share an experience I had..... I went to a steak house where there weren't a lot of safe options for me. So, I decided just to order a drink and eat later. I asked the bar tender about how they made their margaritas - fresh lime juice, fresh orange juice and gluten free tequila. gluten-free all the way. My husband went back to order for me and noticed that the bartender was juicing the limes and serving bread to the customers at the bar at the same time. I would have totally drank that margarita had he not seen him doing that. I decided to skip the margarita because of the high chance of CC

If you're going to continue to push for a diagnosis stay on gluten! A break could lead to a false negative. It's a lot harder to go off it and then go back on...