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Celiac disease is a well-documented autoimmune disease triggered by exposure to the dietary proteins found in wheat, rye, and barley. Celiac disease affects less than 1% of Americans yet many more people claim to be sensitive to gluten.
When people with celiac disease eat gluten, their body mounts an immune response that attacks the small intestine. These attacks lead to damage on the villi, the small projections that line the small intestine that promote nutrient absorption. Symptoms range from various digestive problems to fatigue, weight loss, bloating, and anemia. Ultimately, it can lead to a variety of serious health complications.
Until recently, there was a tendency by doctors to dismiss the complaints of people who claimed to be sensitive to gluten but do not have celiac disease. That is starting to change, in part as a result of studies conducted at Columbia University that looked at the biological basis for non-celiac gluten sensitivity.
The new study shows that people with non-celiac gluten sensitivity produce a high level of anti-gluten antibodies but that these antibodies are different from the ones triggered by celiac disease and that the inflammatory responses they instigate are also different. The more restrained inflammatory response is much less likely to be associated with autoimmune activity and intestinal cell damage. In addition, the immune system of people with non-celiac gluten sensitivity appears to be able to gradually reduce its inflammatory response over time.
Discovery of these antibodies could be used in the future to help doctors more readily identify people with non-celiac gluten sensitivity, which now is difficult to diagnose. The researchers also believe that their work could lead to potential new therapies for celiac disease, which is currently treated only with dietary restrictions.
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Unique Antibody Profile Sets Gluten Sensitivity Apart from Celiac Disease
Photo, posted November 27, 2010, courtesy of Francis Storr via Flickr.
Earth Wise is a production of WAMC Northeast Public Radio.
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