Protein Zonulin Linked to Celiac Disease
In 1994 I was diagnosed with celiac disease, which led me to create Celiac.com in 1995. I created this site for a single purpose: To help as many people as possible with celiac disease get diagnosed so they can begin to live happy, healthy gluten-free lives. Celiac.com was the first site on the Internet dedicated solely to celiac disease, and since then it has become an invaluable resource to people worldwide who seek information about celiac disease and the gluten-free diet.
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I am also co-author of the book Cereal Killers, and founder and publisher of Journal of Gluten Sensitivity.
Celiac.com 05/14/2000 - Scientists from the University of Maryland have discovered that people with the autoimmune disorder celiac disease have higher levels of the protein zonulin in their bodies. This discovery may ultimately lead to more insight into the causes of other autoimmune diseases, including diabetes, multiple sclerosis and rheumatoid arthritis. In people with celiac disease who eat gluten, which is found in wheat, rye and barley, an autoimmune reaction is set off that creates antibodies that end up attacking their intestines. This causes symptoms like diarrhea and abdominal pain, and may lead to long-term damage and a large host of other problems. Researchers at the University of Maryland have finally found the cause of this curious reaction: a protein in the body called zonulin.
Zonulin is a human protein that acts like a traffic conductor for the bodys tissues by opening spaces between cells, and allowing certain proteins to pass through, while keeping out toxins and bacteria. People with celiac disease have higher levels of zonulin, which apparently allows gluten to pass through the cells in their intestines, which triggers an autoimmune response in their bodies. Until now, researchers could never understand how a big protein like gluten could pass through the immune system. According to author Alessio Fasano, M.D., people with celiac have an increased level of zonulin, which opens the junctions between the cells. In essence, the gateways are stuck open, allowing gluten and other allergens to pass. Further: I believe that zonulin plays a critical role in the modulation of our immune system...(f)or some reason, the zonulin levels go out of whack, and that leads to autoimmune disease. Ultimately these finding may help doctors understand the causes of other, more severe autoimmune disorders.
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