Jump to content

Follow Us:  Twitter Facebook RSS Feed            




   arrowShare this page:
   

   Get email alerts  Subscribe to FREE Celiac.com email alerts

 
Ads by Google:
Celiac.com Sponsor:                                    


Photo
- - - - -

Dgp Meaning Needed In Easy To Understand Terms


  • Please log in to reply

1 reply to this topic

#1 powerofpositivethinking

 
powerofpositivethinking

    Advanced Community Member

  • Advanced Members
  • PipPipPipPipPipPip
  • 632 posts
 

Posted 07 April 2013 - 04:40 PM

can anyone explain what exactly it means when the gliadin peptide becomes deamidated?  what causes this?  all the scientific wording I keep finding is too confusing for me to really understand the concept, so simple terms would be much appreciated  :rolleyes:  thanks!


  • 0

Diagnosed with celiac disease, but my fat malabsoption, EPI and Vitamin K deficiency have finally cleared themselves up do to the help from Creon!

Thankful for all the help I've received from members on this board!

Happy to have answers  :) 


Celiac.com Sponsor:

#2 mushroom

 
mushroom

    Mushroom

  • Advanced Members
  • PipPipPipPipPipPip
  • 9,448 posts
 

Posted 07 April 2013 - 05:02 PM

It is pretty hard to do in layman's terms (not that I could do it myself anyway :P )  The following abstract is not too "abstract" or technical and might allow you to get the gist of it:

 

http://www.ncbi.nlm....pubmed/17682339

 

Celiac disease (celiac disease) is an (auto)immunologically mediated intestinal intolerance against proteins from wheat (gluten) and related cereal proteins. Tissue transglutaminase (tTG) has been identified as the autoantigen in celiac disease. Although ultimate diagnosis is based on histological analysis of small intestinal mucosa obtained via tissue biopsy, assessment of autoantibodies can provide substantial help in the evaluation of celiac disease. Gliadin antibodies are directed against the native disease-provoking cereal proteins. Despite their initial usefulness, these antibodies have lost diagnostic importance due to their poor specificity and sensitivity as celiac disease markers. Recently, it was found, however, that gliadin antibodies from sera of patients with active celiac disease preferentially recognized deamidated gliadin peptides. The use of deamidated gliadin peptides in immunoassays has significantly improved the usefulness of gliadin antibodies in diagnosis of celiac disease to that observed with autoantibody assay methods (endomysium antibodies, antibodies against tTG). The antibody epitopes (B-cell epitopes) reflect substrate specificity of tTG and resemble peptide sequences known to be strongly T-cell stimulatory (T-cell epitopes) in celiac disease. The assay applying deamidated gliadin peptides measures a new species of antibodies, which is different from conventional gliadin antibodies as well as from autoantibodies and will likely provide new information on pathophysiological mechanisms of celiac disease.


  • 0
Neroli


"Everything that can be counted does not necessarily count; everything that counts cannot necessarily be counted." - Albert Einstein

"Life is not weathering the storm; it is learning to dance in the rain"

"Whatever the question, the answer is always chocolate." Nigella Lawson

------------

Caffeine free 1973
Lactose free 1990
(Mis)diagnosed IBS, fibromyalgia '80's and '90's
Diagnosed psoriatic arthritis 2004
Self-diagnosed gluten intolerant, gluten-free Nov. 2007
Soy free March 2008
Nightshade free Feb 2009
Citric acid free June 2009
Potato starch free July 2009
(Totally) corn free Nov. 2009
Legume free March 2010
Now tolerant of lactose

Celiac.com - Celiac Disease Board Moderator




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

Celiac.com Sponsors: