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Researchers Complete Genetic Study of Celiac, Five Other Autoimmune Diseases

Celiac.com 07/03/2013 - Researchers have completed a genetic study of six autoimmune diseases, including diabetes, the largest such study of human disease genetics to date. The study will help scientists in their efforts to uncover the causes of these diseases, which include autoimmune thyroid disease, celiac disease, Crohn’s disease, psoriasis, multiple sclerosis and type 1 diabetes.

Photo: CC-- Allen GathmanWhile currently unknown, the underlying causes of these conditions are believed to involve a complex combination of genetic and environmental factors. In each of the six diseases, the identified genetic variants explained only a proportion of the heritability.

Under one of the current major genetic disease hypotheses, the so called ‘rare-variant synthetic genome-wide association hypothesis,’ a small number of rare variants in risk genes are likely the major cause of the heritability of these conditions.

In their study, the research team used high-throughput sequencing techniques, in an effort to identify new genetic variants, including rare and potentially high risk variants, in 25 previously identified risk genes taken from a sample of nearly 42,000 patients.

Their data suggest that the genetic risk of these diseases more likely results from a complex interaction of hundreds of variants, each small on its own, but which, taken together impact the development of these six diseases.

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They estimate that rare variants in these risk genes make up only about three per cent of the heritability of these conditions that can be explained by common variants.

The results, says lead study author David van Heel, suggest that "risk for these autoimmune diseases is not due to a few high-risk genetic variations." Rather, risk is likely due to a "random selection from many common genetic variants which each have a weak effect.”

This could mean that it will never be possible to accurately predict a person's risk of developing any of these six autoimmune diseases, simply because there are too many variables.

“However, the results do provide important information about the biological basis of these conditions and the pathways involved, which could lead to the identification new drug targets,” said van Heel.

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2 Responses:

 
CeliacMom
Rating: ratingfullratingfullratingfullratingfullratingfull Unrated
said this on
09 Jul 2013 7:00:05 AM PDT
Thanks for explaining this, sounds complicated!

 
Kim

said this on
12 Jul 2013 7:14:44 AM PDT
Whats more complicated is I have Hypothroidism, Celiac disease, and Psoriasis... urgh




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Haha todays cheat day and I cant decide if i want pizza or mac and cheese lmao oh the struggle.

Ive seen that one at stop and shop I'll have to give it a try!

Good to know! I have one near me! Their pizza is yummy too.

I'd recommend Vick's VapoRub... Here is the product listing including the ingredients list: http://vicks.com/en-us/shop-products/vaporub/vaporub-topical-ointment It may say cough suppressant but it has many uses, including for congestion, sore muscles/joints, and I'm sure it could aid a sore throat

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