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Digestive Health

Updated 26 April 2017

Celiac and Crohn's disease share genetic risk factors

Celiac disease and Crohn's disease share several genetic risk factors, a new study finds.

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Celiac disease and Crohn's disease share several genetic risk factors, a new study finds.

Celiac disease, which makes it hard to absorb nutrients properly, is an inherited autoimmune disease in which the lining of the small intestine is damaged by gluten and other protein found in wheat and some other grains. Crohn's disease is a form of inflammatory bowel disease.

An international team of researchers conducted a meta-analysis of genome-wide data for the conditions, both considered inflammatory diseases of the gastrointestinal tract. The causes of the diseases are only partly understood, although it is known that genetic and environmental factors are involved.

Previous research has shown that people with celiac disease have an increased risk of developing Crohn's disease, which suggested that the two conditions would share genetic risk factors.

The scientists in this study pinpointed two new shared genetic risk loci - that is, specific locations of genes or DNA sequence on a chromosome. They also found two shared risk loci that had previously been independently identified for each disease.

The study was published in the journal PLoS Genetics.


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