Jump to content
This site uses cookies. Continued use is acceptance of our Terms of Use and Privacy Policy. More Info... ×
  • Welcome to Celiac.com!

    You have found your celiac tribe! Join us and ask questions in our forum, share your story, and connect with others.




  • Celiac.com Sponsor (A1):



    Celiac.com Sponsor (A1-M):


  • Get Celiac.com Updates:
    Where Your Contribution Counts!
    eNewsletter
    Support Us!
  • Record is Archived

    This article is now archived and is closed to further replies.

    Jefferson Adams
    Jefferson Adams

    Gluten-degrading Enzyme Shows Promise for Treating Celiac Disese

    Reviewed and edited by a celiac disease expert.
    Gluten-degrading Enzyme Shows Promise for Treating Celiac Disese - Photo: CC--R.Vore
    Caption: Photo: CC--R.Vore

    Celiac.com 10/14/2013 - A team of researchers recently set out to assesses the safety and efficacy of Aspergillus niger prolyl endoprotease (AN–PEP) to mitigate the effects of gluten in celiac patients.

    Photo: CC--R.VoreFor their study, the researchers included celiac patients with positive serology and subtotal or total villous atrophy on duodenal biopsies, who follow a strict gluten-free diet (GFD) resulting in normalised antibodies and mucosal healing classified as Marsh 0 or I were included.

    Celiac.com Sponsor (A12):
    Prior to this randomized double-blind placebo-controlled pilot study, the team measured complaints, quality-of-life, serum antibodies, immunophenotyping of T-cells and duodenal mucosa immunohistology.

    They then had patients consume approximately 7 grams of gluten per day as toast, along with AN-PEP for a two week safety phase. The team put subjects through a two week washout phase where they followed their usual gluten-free diets. The team then randomly assigned 14 patients to receive gluten, with either AN-PEP or placebo, for a two week efficacy phase.

    They also collected patient questionnaires on serum and quality of life during and after the safety, washout and efficacy phase. They conducted duodenal biopsies after both the safety phase and the efficacy phase. Change in histological evaluation according to the modified Marsh classification served as the primary endpoint.

    In all, 16 adults participated in the study. No serious adverse events occurred during the trial and no patients withdrew during the trial. The average score for the gastrointestinal subcategory of the celiac disease quality (CDQ) was relatively high throughout the study, indicating that AN-PEP was well tolerated.

    In the efficacy phase, the team saw no significant deterioration in the CDQ scores of patients consuming gluten with placebo or gluten with AN-PEP, nor did they observe any other differences between the groups. During the efficacy phase, neither the placebo nor the AN-PEP group showed significant antibody titers. IgA-EM concentrations remained negative in both groups.

    The team excluded two patients from entering the efficacy phase because their mucosa showed an increase of two Marsh steps after the safety phase, yet with undetectable serum antibodies. A total of 14 patients were considered histologically stable on gluten with AN-PEP.

    Also, after the efficacy phase, the team saw no significant deterioration in immunohistological and flow cytometric evaluation in the group consuming placebo compared to the group receiving AN-PEP.

    Furthermore, in four out of seven patients on placebo, IgA-tTG deposit staining increased after two weeks of gluten intake compared to baseline.

    In the seven patients receiving AN-PEP, one patient showed increased and one showed decreased IgA-tTG deposits.

    AN–PEP appears to be well tolerated. However, the primary endpoint was not met due to lack of clinical deterioration upon placebo, impeding an effect of AN–PEP.

    The research team included Greetje J Tack, Jolanda MW van de Water, Chris J Mulder of the Department of Gastroenterology and Hepatology, VU University Medical Centre in Amsterdam, The Netherlands; Engelina MC Kooy-Winkelaar, Jeroen van Bergen, and Frits Koning of the Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre in Leiden, The Netherlands; Petra Bonnet, B Mary E von Blomberg, and Marco WJ Schreurs from the Department of Pathology, VU University Medical Centre, in Amsterdam, The Netherlands; Anita CE Vreugdenhil, with Department of Paediatrics, University Hospital Maastricht in Maastricht, The Netherlands; and Ilma Korponay-Szabo, with the Department of Paediatrics, University of Debrecen in Hungary, and the Paediatric Research Centre, University of Tampere, in Tampere, Finland.

    Source:

    • Open Original Shared Link


    User Feedback

    Recommended Comments

    Guest Mark

    Great article!

    Link to comment
    Share on other sites


    Guest
    This is now closed for further comments

  • Get Celiac.com Updates:
    Help Celiac.com:
    Donate
  • About Me

    Jefferson Adams

    Jefferson Adams is Celiac.com's senior writer and Digital Content Director. He earned his B.A. and M.F.A. at Arizona State University. His articles, essays, poems, stories and book reviews have appeared in numerous magazines, journals, and websites, including North American Project, Antioch Review, Caliban, Mississippi Review, Slate, and more. He is the author of more than 2,500 articles on celiac disease. His university coursework includes studies in science, scientific methodology, biology, anatomy, physiology, medicine, logic, and advanced research. He previously devised health and medical content for Colgate, Dove, Pfizer, Sharecare, Walgreens, and more. Jefferson has spoken about celiac disease to the media, including an appearance on the KQED radio show Forum, and is the editor of numerous books, including "Cereal Killers" by Scott Adams and Ron Hoggan, Ed.D.

    >VIEW ALL ARTICLES BY JEFFERSON ADAMS

     


  • Celiac.com Sponsor (A17):
    Celiac.com Sponsor (A17):





    Celiac.com Sponsors (A17-M):




  • Related Articles

    Jefferson Adams
    Celiac.com 08/20/2009 - For the first time, a team of celiac disease researchers has discovered a role for the main inherited celiac-associated genetic variation, connecting altered NF-kB signalling with risk variants associated with Celiac disease in TNFAIP3 and REL.
    The research team was made up of G. Trynka, A. Zhernakova, J. Romanos, L. Franke, K. A. Hunt, G. Turner, M. Bruinenberg, G. A. Heap, M. Platteel,1 A. W. Ryan, C. de Kovel, G. K. T. Holmes, P. D. Howdle, J. R. F. Walters, D. S. Sanders, C. J. J. Mulder, M. L. Mearin, W. H. M. Verbeek, V. Trimble, F. M. Stevens, D. Kelleher, D. Barisani, M. T. Bardella, R. McManus, D. A. van Heel, C. Wijmenga.
    An earlier celiac disease genome-wide association study (GWAS) identified risk variants in the human leucocyte antigen (HLA)...


    Destiny Stone
    Celiac.com 05/05/2010 - Celiac disease is the most commonly misdiagnosed auto-immune disease of modern times. People that have celiac disease and ingest gluten, have a T-Cell mediated immune reaction which creates damage to the small intestinal mucosa. Mucosa villous atrophy is presented as an abnormality of the small intestine, and results in the flattening of the mucosa, and gives the appearance of atrophy of villi. Clinically, this is found in malabsorbtion syndromes like celiac disease. The degree of damage which occurs in the duodenum can vary, and there is some controversy regarding the coexistence of villous atrophy and normal mucosa found in different biopsy locations.
     Tests for villous atrophy were conducted at the regional referral center Gastrointestinal Patho-physiology ...


    Jefferson Adams
    Celiac.com 06/08/2012 - In a new study, researchers at Brigham and Women's Hospital (BWH) addressed whether the genetic risk of the most common medical conditions, including celiac disease, stems from many rare mutations that each confer a high degree of risk in various people, or from common differences throughout the genome that modestly influence risk.
    They used data and new analysis tools to assess new methods to better understand gene mutations for celiac and three other diseases, rheumatoid arthritis, coronary artery disease and myocardial infarction (heart attack); and type 2 diabetes.
    The researchers developed a new statistical method that used what is called "polygenic risk score analysis," to estimate the heritable genetic markers of these diseases that is explained by ...


    Jefferson Adams
    Celiac.com 06/10/2013 - Researchers have known for some time that immunoglobulin G antibodies against deamidated gliadin peptides are about as accurate as tissue transglutaminase and endomysium autoantibodies in diagnosing celiac disease in adults. However, not much is known about their predictive value in infants with a suspected gluten enteropathy.
    A team of researchers recently set out to determine if antibodies to deamidated gliadin peptides could be an accurate predictor of celiac disease in infants.
    The research team included S. Amarri, P. Alvisi, R. De Giorgio, M.C. Gelli, R. Cicola, F. Tovoli, R. Sassatelli, G. Caio, and U. Volta. They are affiliated with the Pediatric Unit, IRCCS - Arcispedale Santa Maria Nuova, Reggio Emilia, Italy.
    To test whether deamidated gliadin...


  • Recent Activity

    1. - cristiana replied to Larzipan's topic in Related Issues & Disorders
      16

      Has anyone had terrible TMJ/ Jaw Pain from undiagnosed Celiac?

    2. - Julie Riordan replied to Julie Riordan's topic in Traveling with Celiac Disease
      3

      Any ideas for travelling

    3. - Nedast replied to Larzipan's topic in Related Issues & Disorders
      16

      Has anyone had terrible TMJ/ Jaw Pain from undiagnosed Celiac?

    4. - trents replied to SuzanneL's topic in Celiac Disease Pre-Diagnosis, Testing & Symptoms
      1

      Weak Positive Test

    5. - SuzanneL posted a topic in Celiac Disease Pre-Diagnosis, Testing & Symptoms
      1

      Weak Positive Test


  • Celiac.com Sponsor (A19):



  • Member Statistics

    • Total Members
      120,498
    • Most Online (within 30 mins)
      7,748

    Kim.cervone513
    Newest Member
    Kim.cervone513
    Joined

  • Celiac.com Sponsor (A20):


  • Forum Statistics

    • Total Topics
      120.2k
    • Total Posts
      1m

  • Celiac.com Sponsor (A22):





  • Celiac.com Sponsor (A21):



  • Popular Now

    • JustGemi
    • Linedancegal
    • Hannah24
      9
    • jessiemariecar
    • Rhonda H
  • Popular Articles

    • Scott Adams
    • Scott Adams
    • Scott Adams
    • Scott Adams
    • Scott Adams
  • Upcoming Events

×
×
  • Create New...