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<rss version="2.0"><channel><title><![CDATA[Latest Celiac Disease News & Research:: Ground Breaking Celiac Disease Studies]]></title><link>https://www.celiac.com/celiac-disease/celiac-disease-gluten-intolerance-research/page/58/?d=2</link><description><![CDATA[Latest Celiac Disease News & Research:: Ground Breaking Celiac Disease Studies]]></description><language>en</language><item><title>Is Celiac Disease Linked to Rotavirus Protein? By Roy Jamron</title><link>https://www.celiac.com/celiac-disease/is-celiac-disease-linked-to-rotavirus-protein-by-roy-jamron-r1043/</link><description><![CDATA[
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<div>Celiac.com 09/29/2006 - A new study identified a  peptide which causes an immune reaction in a majority of active celiac  disease patients but no such reaction in any celiac disease patients on  a gluten-free diet. Antibodies to this celiac peptide also recognize and  bind to the rotavirus protein VP-7 and cause increased intestinal permeability.  Antibodies to VP-7 produced in rabbits also increase intestinal permeability.  The celiac peptide also binds to Toll-like receptor 4 and activates monocytes  (white blood cells active in innate immunity.) IgA and IgG antibodies  to rotavirus protein VP-7 are present in a majority of celiac disease  patients and to a much lesser percent of the general population. This  suggests VP-7 may be involved in the pathogenesis of celiac disease through  a molecular mimicry mechanism.</div> <p>Below is the abstract of the study:</p> <div>  <p></p><div style="margin-left:25px;">PLoS Medicine Volume 3, Issue 9, SEPTEMBER 2006 </div><br /><div style="margin-left:25px;"> </div><strong></strong><div style="margin-left:25px;"><strong>In Celiac Disease, a Subset of Autoantibodies against Transglutaminase  Binds Toll-Like Receptor 4 and Induces Activation of Monocytes</strong></div><strong></strong>
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<p><strong></strong></p><div style="margin-left:25px;"><strong>Methods and Findings:</strong></div><strong></strong><br /><div style="margin-left:25px;"> "In our attempt to clarify the pathogenesis of celiac disease,  we screened a random peptide library with pooled sera of patients affected  by active disease after a pre-screening with the sera of the same patients  on a gluten-free diet. We identified a peptide recognized by serum immunoglobulins  of patients with active disease, but not by those of patients on a gluten-free  diet. This peptide shares homology with the rotavirus major neutralizing  protein VP-7 and with the self-antigens tissue transglutaminase, human  heat shock protein 60, desmoglein 1, and Toll-like receptor 4. We show  that antibodies against the peptide affinity-purified from the sera  of patients with active disease recognize the viral product and self-antigens  in ELISA and Western blot. These antibodies were able to induce increased  epithelial cell permeability evaluated by transepithelial flux of [3H]  mannitol in the T84 human intestinal epithelial cell line. Finally,  the purified antibodies induced monocyte activation upon binding Toll-like  receptor 4, evaluated both by surface expression of activation markers  and by production of pro-inflammatory cytokines."</div>
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<p></p><div style="margin-left:25px;"> </div><strong></strong><div style="margin-left:25px;"><strong>Conclusions:</strong></div><strong></strong><br /><div style="margin-left:25px;"> "Our findings show that in active celiac disease, a subset of anti-transglutaminase  IgA antibodies recognize the viral protein VP-7, suggesting a possible  involvement of rotavirus infection in the pathogenesis of the disease,  through a mechanism of molecular mimicry. Moreover, such antibodies  recognize self-antigens and are functionally active, able to increase  intestinal permeability and induce monocyte activation. We therefore  provide evidence for the involvement of innate immunity in the pathogenesis  of celiac disease through a previously unknown mechanism of engagement  of Toll-like receptor 4."</div>
<p></p> ]]></description><guid isPermaLink="false">1043</guid><pubDate>Fri, 29 Sep 2006 00:00:00 +0000</pubDate></item><item><title>Cholesterol, Omega-3 Fatty Acids and Celiac Disease by Roy Jamron</title><link>https://www.celiac.com/celiac-disease/cholesterol-omega-3-fatty-acids-and-celiac-disease-by-roy-jamron-r1037/</link><description><![CDATA[
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<p>Celiac.com 09/12/2006 - Symptoms of celiac disease  prominently include fat malabsorption. One would expect this to impact  levels of essential fatty acids in celiacs. The omega-3 essential fatty  acids, especially eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids  available in fish oil supplements have been demonstrated to have numerous  health benefits. However, there are almost no studies on the effect of  celiac disease on essential fatty acid levels. I am currently in the process  of writing an article on essential fatty acids that will appear in <span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLmh0bWwvam91cm5hbC1vZi1nbHV0ZW4tc2Vuc2l0aXZpdHkv" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span>, so a new study on lipid profiles in celiac  disease caught my eye with promise. I was disappointed to find the study  only measured cholesterol levels in celiacs, which showed an improvement  in the "bad" to "good", LDL to HDL, ratio and an increase  in "good" HDL cholesterol in patients on a gluten-free diet.  The opportunity to study essential fatty acid levels in celiacs was again  missed. However, omega-3 fatty acids have a proven beneficial effect on  cholesterol levels, and improved fat absorption of omega-3 fatty acids  due to a gluten-free diet may be responsible for the results presented  in this new celiac disease lipid profile study.</p> <p>Below are the abstract of this study and two studies  on the effects of omega-3 fatty acids on cholesterol levels:</p> <p>Am J Med. 2006 Sep;119(9):786-90. <br /> Change in lipid profile in celiac disease: beneficial effect of gluten-free  diet.<br /> Brar P, Kwon GY, Holleran S, Bai D, Tall AR, Ramakrishnan R, Green PH.  </p> <p>Am J Cardiol. 2006 Aug 21;98(4 Suppl 1):71-6.<br /> Clinical overview of omacor: a concentrated formulation of omega-3 polyunsaturated  Fatty acids.<br /> Bays H.</p> <p>Am J Clin Nutr. 2000 May;71(5):1085-94. <br /> Purified eicosapentaenoic and docosahexaenoic acids have differential  effects on serum lipids and lipoproteins, LDL particle size, glucose,  and insulin in mildly hyperlipidemic men.<br /> Mori TA, Burke V, Puddey IB, Watts gluten-free, ONeal DN, Best JD, Beilin LJ.  </p> <p><strong>New Fatty Acid Celiac Disease Study</strong></p> <p>No sooner do I complain there arent any studies of essential  fatty acid levels in celiac disease then, at least, a limited pediatric  study of essential fatty acids appears! The results of this study on 7  pediatric patients with active celiac disease, 6 with celiac disease in  remission, and 11 controls, show serum levels of fatty acids are similar  between celiac disease and control patients, but abnormal fatty acid levels  exist in intestinal mucosa tissue of active celiac disease patients. Results  suggest an omega-6 fatty acid deficiency, at least in the mucosa. Not  too surprising because prostaglandin E2 secretion increases in the intestines  of active celiac disease patients, and prostaglandin E2 is produced from  omega-6 fatty acids. It should be noted that fatty acid profiles may prove  to be different in adult celiac disease patients. Also while omega-6 fatty  acids may be deficient, increasing intake of omega-3 fatty acids may help  reduce inflammatory processes in celiac disease.</p> <p>J Pediatr Gastroenterol Nutr. 2006 Sep;43(3):318-323.<br /> Abnormal Fatty Acid Pattern in Intestinal Mucosa of Children with Celiac  Disease is Not Reflected in Serum Phospholipids.<br /> Steel DM, Ryd W, Ascher H, Strandvik B.</p> <p></p><div style="margin-left:25px;"> </div>
<p><strong></strong></p><div style="margin-left:25px;"><strong>Abstract: </strong></div><strong></strong><br /><div style="margin-left:25px;"> "Objective: Celiac disease (celiac disease) is characterized by chronic inflammation  of the small intestinal mucosa with disturbed epithelial transport.  The fatty acid (FA) composition of intestinal membranes is important  for epithelial function, and disturbances may contribute to the pathophysiology  of the disease. We aimed to evaluate whether the intestinal mucosal  FA status was reflected in serum phospholipids of patients with celiac disease."</div>
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<p></p><div style="margin-left:25px;"> "Patients and Methods: Samples were obtained  from 7 pediatric patients with active celiac disease showing mucosal atrophy, 6  pediatric patients with celiac disease in remission, and 11 control pediatric patients  with morphologically healthy intestinal mucosa. Small intestinal biopsies  were obtained using a Watson biopsy capsule under fluoroscopic control.  Blood samples were collected on the same morning after an overnight  fast. Tissue phospholipids were isolated by high-performance liquid  chromatography, and FAs were analyzed by capillary gas-liquid chromatography."</div>
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<p></p><div style="margin-left:25px;"> "Results: Serum phospholipid FA showed marginal  differences between the patients with celiac disease and the controls. Significant  differences were observed in mucosa with active celiac disease compared with controls.  Linoleic acid (18:2n-6) level was decreased, whereas those of its derivatives  were elevated, indicating increased transformation of n-6 FA. Mead acid  (20:3n-9) level was increased, with an increased ratio of Mead acid  to arachidonic acid (20:4n-6) levels, suggesting essential fatty acid  deficiency. The n-3 FA levels were not significantly changed. During  remission, the FA pattern of the intestinal mucosa was mainly similar  to that in controls."</div>
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<p></p><div style="margin-left:25px;"> "Conclusions: The FA abnormality of intestinal  mucosa in patients with active celiac disease was not reflected in serum values.  Altered FA content may contribute to the pathophysiology of the disease  because FAs are important for enzymes and for the transport and receptor  functions of epithelial membranes."</div>
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]]></description><guid isPermaLink="false">1037</guid><pubDate>Tue, 12 Sep 2006 00:00:00 +0000</pubDate></item><item><title>Older Celiac Disease Patients on a Gluten-Free Diet Slower to Recover by Roy Jamron</title><link>https://www.celiac.com/celiac-disease/older-celiac-disease-patients-on-a-gluten-free-diet-slower-to-recover-by-roy-jamron-r1024/</link><description><![CDATA[
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<div>Celiac.com 07/31/2006 - A two-year study in the July  2006 Endoscopy showed older celiac patients on a gluten-free diet have  an incomplete histological recovery even after two years. Only the  younger patients (5 - 30 years) showed significant improvement of histology  within 12 months (P &lt; 0.034); older patients (&gt;30 years) showed  histological improvement but this was not statistically significant, even  after 24 months on a gluten-free diet. This study was also previously  discussed in an article by Dr. Antonio Tursi in the Spring 2006 Celiac.com  <span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLmh0bWwvam91cm5hbC1vZi1nbHV0ZW4tc2Vuc2l0aXZpdHkv" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span>.</div> <p>This also means increased intestinal permeability and  associated problems such as liver damage may continue to be a lasting  problem in older patients beyond two years on a gluten-free diet. Below  is the abstract:</p> <p> </p>
<div>  <p></p><div style="margin-left:25px;">Endoscopy 2006 July; 38(7): 702-707</div><br /><div style="margin-left:25px;"> Endoscopic and histological findings in the duodenum of adults with  celiac disease before and after changing to a gluten-free diet: a 2-year  prospective study </div><br /><div style="margin-left:25px;"> Tursi, A.; Brandimarte, G.; Giorgetti, G. M.; Elisei, W.; Inchingolo,  C. D.; Monardo, E.; Aiello, F.</div>
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<p><strong></strong></p><div style="margin-left:25px;"><strong>Background and study aims: </strong></div><strong></strong><div style="margin-left:25px;">Published  follow-up data on small-intestinal recovery in patients with celiac  disease are scarce and contradictory. This is especially the case for  adult patients, who often show incomplete histological recovery after  starting a gluten-free diet (GFD). We conducted a 2-year prospective  study to evaluate the effectiveness of a GFD in improving the endoscopic  and histological duodenal findings in adults with celiac disease.</div>
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<p></p><div style="margin-left:25px;"> </div><strong></strong><div style="margin-left:25px;"><strong>Patients and methods:</strong></div><strong></strong><div style="margin-left:25px;"> We studied  42 consecutive adults with newly diagnosed celiac disease (13 men, 29  women; mean age 32.7 years, range 15 - 72 years). All the patients underwent  esophagogastroduodenoscopy and small bowel biopsy. We devised our own  grading system for the endoscopic appearance of the duodenum, which  ranged from "normal" appearance to "mild", "moderate",  or "severe" alterations. Small bowel biopsies were obtained  from the second part of the duodenum (and from the duodenal bulb when  it had a micronodular appearance). The histopathological appearances  were described according to modified Marsh criteria.</div>
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<p></p><div style="margin-left:25px;"> </div><strong></strong><div style="margin-left:25px;"><strong>Results:</strong></div><strong></strong><div style="margin-left:25px;"> A normal endoscopic  appearance in the duodenum was found in 5/42 patients (11.9 %) at entry  and in 32/42 patients (76.2 %) after 2 years on a GFD. Subdividing the  patients according to age, patients aged from 15 years to 60 years showed  significant improvement within 12 months (P &lt; 0.0001 for patients  aged from 15 years to 45 years; P &lt; 0.003 for patients in the 46  years to 60 years group), whereas the improvement in endoscopic findings  in patients older than 60 years was not statistically significant, even  24 months after starting the GFD. "Normal" histology was  reported in none of the patients at entry, but in 25 patients (59.5  %) after 24 months on a GFD, but this parameter did not show a significant  improvement until the patients had been on the GFD for 12 months (P  &lt; 0.0001). Only the younger patients (5 - 30 years) showed significant  improvement of histology within 12 months (P &lt; 0.034); older patients  (&gt;30 years) showed histological improvement but this was not statistically  significant, even after 24 months on a GFD.</div>
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<p></p><div style="margin-left:25px;"> </div><strong></strong><div style="margin-left:25px;"><strong>Conclusions:</strong></div><strong></strong><div style="margin-left:25px;"> This study shows  for the first time that endoscopic recovery is faster than histological  recovery in adults with celiac disease who go on a GFD. Moreover, older  patients showed incomplete endoscopic and histological recovery even  24 months after starting a GFD. We therefore advise, as a minimum recommendation,  that follow-up biopsies should be taken 1 - 2 years after starting a  GFD in adults with celiac disease.</div>
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]]></description><guid isPermaLink="false">1024</guid><pubDate>Mon, 31 Jul 2006 00:00:00 +0000</pubDate></item><item><title>Role of the Innate Immune Response in Celiac Disease with Comments by Roy Jamron</title><link>https://www.celiac.com/celiac-disease/role-of-the-innate-immune-response-in-celiac-disease-with-comments-by-roy-jamron-r993/</link><description><![CDATA[
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<div>Celiac.com 04/10/2006 - This study looks at innate immune response to gliadin.  The innate immune system responds to gliadin inducing zonulin release  and increasing intestinal permeability and may be a factor in the onset  of celiac disease, but I question if this leads ultimately to the  Ag-specific adaptive immune response seen in patients with celiac disease. This  innate response fails to explain why one identical twin may have celiac  disease and not the other. Both of the twins as well as people not even  susceptible to celiac disease would presumably have this same innate response  to gliadin. I again urge celiac disease researchers to consider <span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLzc3OS8xL0FyZS1Db21tZW5zYWwtQmFjdGVyaWEtd2l0aC1hLVRhc3RlLWZvci1HbHV0ZW4tdGhlLU1pc3NpbmctTGluay1pbi10aGUtUGF0aG9nZW5lc2lzLW9mLUNlbGlhYy1EaXNlYXNlLUJ5LVJveS1TLUphbXJvbi9QYWdlMS5odG1s" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span> as the necessary trigger for the onset of celiac disease.  The presence or absence of such bacteria does indeed offer an explanation  as to why one twin gets celiac disease and not the other. <span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLzY0LzEvUHJvdGVpbi1ab251bGluLUxpbmtlZC10by1DZWxpYWMtRGlzZWFzZS9QYWdlMS5odG1s" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span>  does not.</div> <p>In the commercial supplement product, Glisodin, the properties  of gliadin have, in fact, already been used for the last few years to  facilitate the delivery of the antioxidant enzyme superoxide dismutase  (SOD) protecting it from digestive acids and getting it through the intestinal  mucosa, probably taking advantage of the zonulin effect. Aware of celiac  disease, the developer of Glisodin tried to use other peptides as a carrier  of SOD, but the only gliadin was effective. Unfortunately, this denies  celiacs the benefit of using Glisodin to treat oxidative stress.</p> <p>Abstract of Study:</p> <p></p><div style="margin-left:25px;">  </div>
<p></p><div style="margin-left:25px;"> J Immunol. 2006 Feb 15;176(4):2512-21. </div><br /><div style="margin-left:25px;"> Gliadin Stimulation of Murine Macrophage Inflammatory Gene Expression  and Intestinal Permeability Are MyD88-Dependent: Role of the Innate  Immune Response in Celiac Disease.</div><br /><div style="margin-left:25px;"> Thomas KE, Sapone A, Fasano A, Vogel SN. Department of Microbiology  and Immunology.</div>
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<p></p><div style="margin-left:25px;">Recent studies have demonstrated the importance  of TLR signaling in intestinal homeostasis. Celiac disease (celiac disease) is an  autoimmune enteropathy triggered in susceptible individuals by the ingestion  of gliadin-containing grains. In this study, we sought to test the hypothesis  that gliadin initiates this response by stimulating the innate immune  response to increase intestinal permeability and by up-regulating macrophage  proinflammatory gene expression and cytokine production. To this end,  intestinal permeability and the release of zonulin (an endogenous mediator  of gut permeability) in vitro, as well as proinflammatory gene expression  and cytokine release by primary murine macrophage cultures, were measured.</div>
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<p></p><div style="margin-left:25px;">Gliadin and its peptide derivatives, 33-mer and  p31-43, were found to be potent inducers of both a zonulin-dependent  increase in intestinal permeability and macrophage proinflammatory gene  expression and cytokine secretion. Gliadin-induced zonulin release,  increased intestinal permeability, and cytokine production were dependent  on myeloid differentiation factor 88 (MyD88), a key adapter molecule  in the TLR/IL-1R signaling pathways, but were neither TLR2- nor TLR4-dependent.  Our data support the following model for the innate immune response  to gliadin in the initiation of celiac disease. Gliadin interaction with the intestinal  epithelium increases intestinal permeability through the MyD88-dependent  release of zonulin that, in turn, enables paracellular translocation  of gliadin and its subsequent interaction with macrophages within the  intestinal submucosa. There, the interaction of gliadin with macrophages  elicits a MyD88-dependent proinflammatory cytokine milieu that facilitates  the interaction of T cells with APCs, leading ultimately to the Ag-specific  adaptive immune response seen in patients with celiac disease.</div>
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]]></description><guid isPermaLink="false">993</guid><pubDate>Mon, 10 Apr 2006 00:00:00 +0000</pubDate></item><item><title>Woman with Celiac Disease Symptom-Free 15 Months after Reintroducing Gluten</title><link>https://www.celiac.com/celiac-disease/woman-with-celiac-disease-symptom-free-15-months-after-reintroducing-gluten-r975/</link><description><![CDATA[
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<div> <p>Celiac.com 02/09/2006 - <em>Do not try this at home. If you have celiac  disease you need to remain on a gluten-free diet. This particular study,  as indicated below, involved only one person--which is far too small  of a sample to draw any solid conclusions from. It does, however, offer  some hope that there may be other unknown factors that cause this disease--perhaps  factors that can be reversed or kept in check. Many more studies will  be needed to determine this. After reading and publishing much of Roy  Jamrons work, we thought his comments on this study were very interesting  and have reproduced them here.</em></p> <p><strong>Comments by Roy Jamron:</strong><br> This is interesting, a case of reintroducing gluten to a celiac woman  after a 10 year gluten-free diet with no symptoms of celiac disease  showing up during a 15 month follow up study. It would be interesting  if she remains symptom free in subsequent years.</p> </div> <p>It does bring up the idea of a gluten-ingesting bacteria  link which I proposed in my article, <span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLzc3OS8xL0FyZS1Db21tZW5zYWwtQmFjdGVyaWEtd2l0aC1hLVRhc3RlLWZvci1HbHV0ZW4tdGhlLU1pc3NpbmctTGluay1pbi10aGUtUGF0aG9nZW5lc2lzLW9mLUNlbGlhYy1EaXNlYXNlLUJ5LVJveS1TLUphbXJvbi9QYWdlMS5odG1s" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span>. In that article I proposed that a bacteria  capable of transporting and internalizing gluten peptides resistant to  breakdown could initiate a T cell immune response to gluten. Antigen presenting  cells (dendritic cells) might present gluten peptides internalized by  the bacteria along with peptides and chemical signals from the bacteria  to T cells. The T cells would not be able to distinguish the gluten peptides  from the bacteria peptides and would, therefore, initiate an immune response  to gluten peptides as though they were components from pathogenic bacteria.  The presence or non-presence of such a bacteria in twins offered an explanation  as to why one identical twin could develop celiac disease and not the  other.</p> <p>After 10 years on a gluten-free diet, it is possible  that the numbers of such gluten-ingesting bacteria might diminish to a  level too few to initiate a gluten immune response, especially if the  bacteria largely depend on gluten for nutrition. So, like the twin who  does not develop celiac disease, she remains symptom free.</p> <p>I urged researchers to look for such gluten-ingesting  bacteria in my article, and I continue to urge such research. Such bacteria  could be found through the use of immunogold electron microscopy. This  technique permits gluten peptides to be bound to and labeled with gold  particles which show up as distinct opaque spots under the electron microscope.  Such spots found within microscopic cross sections of fecal bacteria samples  would identify gluten-ingesting bacteria.</p> <p><strong>Abstract of Study:</strong></p> <p><div style="margin-left:25px">  </div></p>
<p><div style="margin-left:25px">An Attempt of Specific Desensitizing Treatment with  Gliadin in Celiac Disease</div><br><div style="margin-left:25px"> Int J Immunopathol Pharmacol. 2005 Oct-Dec;18(4):709-14.</div></p>
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<p><div style="margin-left:25px">Gluten-free diet is the current treatment of  celiac disease. We decided to verify the occurrence of histological  and serological modification and/or clinical manifestations during a  gradual and progressive introduction of gliadin in the diet and if it  may induce a tolerance to food, as it occurs in allergic patients. We  studied the case of a celiac woman with complete clinical and histological  remittance after 10 years of gluten free diet. She took increasing daily  doses of gliadin, reaching the final dose of 9 g of gliadin (15 g of  gluten) in 6 months. Then she started a free dietary regimen. During  the 15-month follow-up period esophago-gastro-duodenoscopy showed normal  Kerckring folds and villi. Anti-gliadin, anti-endomysium and anti-tissue-transglutaminase  antibodies, as well as the haematological and biochemical parameters  remained normal. Our results represent a new approach in research concerning  celiac disease, and could provide a future line of study for its management.</div></p>
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]]></description><guid isPermaLink="false">975</guid><pubDate>Thu, 09 Feb 2006 00:00:00 +0000</pubDate></item><item><title>Breast-feeding May Protect Against Celiac Disease</title><link>https://www.celiac.com/celiac-disease/breast-feeding-may-protect-against-celiac-disease-r956/</link><description><![CDATA[
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<p>Arch Dis Child 2006;91:39-43.</p> <p> Celiac.com 12/08/2005 – Researchers in the United  Kingdom conducted a systematic review and meta-analysis of 15 studies  published between 1966 and 2004 that evaluated the association between  breast-feeding and celiac disease. Their review covered more than 4,000  children and found that breast-feeding may offer protection against the  development of celiac disease, especially if it is prolonged and covers  the period when gluten is introduced. It was unclear, however, whether  breast-feeding merely delays the onset of symptoms, or actually offers  permanent protection against the disease, and more long-term prospective  cohort studies will be necessary to make such a determination. </p>
]]></description><guid isPermaLink="false">956</guid><pubDate>Thu, 08 Dec 2005 00:00:00 +0000</pubDate></item><item><title>Myosin IXB Gene Linked to Intestinal Barrier Defect and Celiac Disease Risk</title><link>https://www.celiac.com/celiac-disease/myosin-ixb-gene-linked-to-intestinal-barrier-defect-and-celiac-disease-risk-r950/</link><description><![CDATA[
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<p>Nat Genet. 2005 Nov 13</p> <p>Celiac.com 11/29/2005 - <em>The following is an abstract of a study by Dutch researchers which demonstrates a new level of understanding with regard to the role that specific genes play in the cause of celiac disease. These findings may eventually lead to a treatment that lies beyond the gluten-free diet:</em></p> <p> </p>
<div>  <p><div style="margin-left:25px">Celiac disease is probably the best-understood immune-related  disorder. The disease presents in the small intestine and results from  the interplay between multiple genes and gluten, the triggering environmental  factor. Although HLA class II genes explain 40% of the heritable risk,  non-HLA genes accounting for most of the familial clustering have not  yet been identified. Here we report significant and replicable association  (P = 2.1 x 10(-6)) to a common variant located in intron 28 of the gene  myosin IXB (MYO9B), which encodes an unconventional myosin molecule  that has a role in actin remodeling of epithelial enterocytes. Individuals  homozygous with respect to the at-risk allele have a 2.3-times higher  risk of celiac disease (P = 1.55 x 10(-5)). This result is suggestive  of a primary impairment of the intestinal barrier in the etiology of  celiac disease, which may explain why immunogenic gluten peptides are  able to pass through the epithelial barrier.</div></p>
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]]></description><guid isPermaLink="false">950</guid><pubDate>Tue, 29 Nov 2005 00:00:00 +0000</pubDate></item><item><title>Increasing Numbers at a Specialist Celiac Disease Clinic: Contribution of Serological Testing in Primary Care</title><link>https://www.celiac.com/celiac-disease/increasing-numbers-at-a-specialist-celiac-disease-clinic-contribution-of-serological-testing-in-primary-care-r938/</link><description><![CDATA[
<p><em>The following abstract was submitted to celiac.com  directly by William Dickey, Ph.D., a leading celiac disease researcher  and gastroenterologist who practices at Altnagelvin Hospital, Londonderry,  Northern Ireland.</em></p> <p>Dig Liver Dis. 2005 Sep 29; <br> Dickey W, McMillan SA.<br> Department of Gastroenterology, Altnagelvin Hospital, Londonderry BT47  6SB, Northern Ireland, UK.</p> <p>Celiac.com 10/11/2005 - BACKGROUND.: Serological testing, using IgA class endomysial  and tissue transglutaminase antibodies has high sensitivity and specificity  for celiac disease and allows case finding by clinicians other than gastroenterologists.  We reviewed new celiac patients seen over a 9-year period to determine  how the availability of serology, particularly to primary care physicians,  has changed rates and sources of diagnosis. </p> <p>METHODS.: Files of patients attending a specialist celiac  clinic who were diagnosed from 1996 through 2004 were reviewed. Patients  with villous atrophy consistent with gluten sensitive enteropathy (Marsh  III) on duodenal biopsy were selected. Data analyzed included clinical  characteristics, endomysial and tissue transglutaminase antibodies status  and source of request for serology. </p> <p>RESULTS.: Over the study period 347 new celiac patients,  comprising adults and children aged 10 years and over, were identified,  of whom 163 (47%) were identified by serological testing in primary care,  152 (44%) at the hospital gastroenterology department and 32 (9%) by other  physicians in secondary care. Over three consecutive 3-year periods, the  percentage of patients identified in primary care rose from 28% through  47% to 60%, with a rise in total numbers diagnosed from 93 through 118  to 136. There was no change in patient clinical characteristics over the  study period. Though tissue transglutaminase antibodies were less sensitive  than endomysial antibodies, combined testing obtained a sensitivity of  over 90%. Patients identified in primary care were significantly younger  and more likely to present with diarrhea as a primary symptom. </p> <p>CONCLUSION.: Currently over half of our celiac patients  are identified by serological testing in primary care, which has resulted  in an overall rise in diagnosis rates. Primary care practitioners have  an important role in the diagnosis of celiac disease, particularly of  patients who present with non-gastrointestinal symptoms. The contribution  of specialists other than gastroenterologists in secondary care is disappointing  and may improve with directed education.</p>
]]></description><guid isPermaLink="false">938</guid><pubDate>Tue, 11 Oct 2005 00:00:00 +0000</pubDate></item><item><title>Researchers to Use Advanced Screening and Breeding Techniques to Help Develop Dietary Alternatives for Celiac Disease Sufferers</title><link>https://www.celiac.com/celiac-disease/researchers-to-use-advanced-screening-and-breeding-techniques-to-help-develop-dietary-alternatives-for-celiac-disease-sufferers-r937/</link><description><![CDATA[
<p><em>This approach has great promise for improving the  quality of future gluten-free products--<span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLzg3Mi8xL0Jha2luZy1RdWFsaXR5LVdoZWF0LUFuY2VzdG9ycy1NYXktYmUtU2FmZS1mb3ItVGhvc2Utd2l0aC1DZWxpYWMtRGlzZWFzZS9QYWdlMS5odG1s" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span>.</em></p> <p>Celiac.com 10/11/2005 - Arcadia Biosciences, an agricultural  biotechnology company focused on products that benefit the environment  and human health, today announced that it has received a Small Business  Technology Transfer Program (STTR) grant from the National Institutes  of Health in partnership with Washington State University (WSU) to research  novel lines of wheat with reduced celiac disease-causing proteins. The  grant will be split equally between Arcadia and its academic collaborator  at WSU, Dr. Diter von Wettstein, the R.A. Nilan Distinguished Professor  in the Department of Crop and Soil Science. </p> <p>Nearly 1 percent of American people and 4 percent of  European people are estimated to suffer from celiac disease, or gluten  intolerance. This genetic disorder can create symptoms that range from  chronic diarrhea to malnutrition. Studies also indicate that celiac disease  sufferers who continue to eat gluten are between 40 and 100 times more  likely to develop gastrointestinal cancer than non-celiac disease sufferers.  The only known treatment for celiac disease is adherence to a gluten-free  diet, which includes complete abstinence from wheat, rye, barley, and  their derivatives.</p> <p>"New diagnostic tests continue to identify people  who suffer from celiac disease and who need to make extreme dietary adjustments,"  said Eric Rey, president of Arcadia Biosciences. "This grant is  the first step in our effort to identify and develop wheat varieties that  can significantly expand the dietary options for people on gluten-free  diets. Our goal is to help enable people who suffer from celiac disease  to enjoy wheat-based products, like bread and cookies, and not experience  an adverse reaction."</p> <p>Working with Dr. von Wettstein and his colleagues at  WSU, Arcadia will use its proprietary TILLING&amp;REG; technology to identify  wheat plants in which harmful gluten proteins are minimized. </p> <p>Arcadias current product pipeline includes six  technologies that either protect the environment or improve human health.  The company expects to launch its first product, GLA-enriched safflower  oil, to the nutritional supplement market in 2008. Other technologies  include higher-yielding plants that use less nitrogen fertilizer, salt-tolerant  plants, and fresh produce with high levels of antioxidants such as lycopene.  These products are being developed using both genetic engineering and  advanced breeding technologies.</p>
]]></description><guid isPermaLink="false">937</guid><pubDate>Tue, 11 Oct 2005 00:00:00 +0000</pubDate></item><item><title>Gluten-Free Diet Recommended for Patients with Serum IgA Endomysial Antibodies but Normal Duodenal Villi Biopsy</title><link>https://www.celiac.com/celiac-disease/gluten-free-diet-recommended-for-patients-with-serum-iga-endomysial-antibodies-but-normal-duodenal-villi-biopsy-r931/</link><description><![CDATA[
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<div> <p><em>The following abstract was submitted to celiac.com directly by  William Dickey, Ph.D., a leading celiac disease researcher and gastroenterologist  who practices at Altnagelvin Hospital, Londonderry, Northern Ireland.  </em></p> <p>Scandinavian Journal of Gastroenterology 2005; 40: 1240-3.<br> Dickey W, Hughes DF, McMillan SA.</p> </div> <p>Celiac.com 09/27/2005 - What does a positive endomysial antibody (EmA) test mean  if the biopsy does not show villous atrophy? The authors studied 35 patients  where this was the case. In the authors practice, these patients  account for 10% of all EmA positives.</p> <p>Firstly, the lack of villous atrophy did not necessarily  mean a normal biopsy: 14 patients had excess inflammatory cells (lymphocytes)  consistent with a mild abnormality of gluten sensitivity.</p> <p>Secondly, many of these patients had typical celiac features:  twelve had a family history of celiac, five had dermatitis herpetiformis  and thirteen had osteopenia or osteoporosis on DEXA scan.</p> <p>After discussion, 27 patients opted to take a gluten-free  diet from the first biopsy: 26 of these had clinical improvement. Seven  of eight patients who persisted with a normal diet developed villous atrophy  on follow-up biopsies.</p> <p>The authors conclude that a positive EmA result indicates  gluten sensitivity even if biopsies do not show villous atrophy. While  a biopsy remains important as a baseline reference, these patients should  be offered a gluten-free diet to allow clinical improvement and prevent  the development of villous atrophy. There may be no such thing as a "false  positive" EmA, although the authors emphasise that the same conclusion  cannot yet be applied to tissue transglutaminase antibody results.</p>
]]></description><guid isPermaLink="false">931</guid><pubDate>Tue, 27 Sep 2005 00:00:00 +0000</pubDate></item><item><title>Prolyl-Endopeptidase Enzymes (PEP) Not Practical in the Detoxification of Gliadin Peptides in Celiac Disease</title><link>https://www.celiac.com/celiac-disease/prolyl-endopeptidase-enzymes-pep-not-practical-in-the-detoxification-of-gliadin-peptides-in-celiac-disease-r927/</link><description><![CDATA[
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<div>Gastroenterology Volume 129, Issue 3, Pages 786-796  (September 2005)</div> <p>Celiac.com 09/14/2005 - Researchers have long thought  that the resistance of gliadin prolamines to digestive enzymes is a primary  contributor to celiac disease—which leads to the intestinal permeability  and inflammation in those who are at risk. Taking prolyl-endopeptidase  enzymes (PEP) orally has been proposed and explored as a possible treatment  for celiac disease (including extensive research done at <span class="ipsBadge ipsBadge_neutral" data-ipsDialog="" data-ipsDialog-size="narrow" data-ipsDialog-url="https://www.celiac.com/index.php?app=dp47badlinksfixer&amp;module=main&amp;controller=main&amp;do=retrieveUrl&amp;url=L2FydGljbGVzLzg0Ni8xL0Z1dHVyZS1Fbnp5bWUtVHJlYXRtZW50LVBvc3NpYmxlLWZvci1QZW9wbGUtd2l0aC1DZWxpYWMtRGlzZWFzZS9QYWdlMS5odG1s" rel="nofollow" style="cursor: pointer;">Open Original Shared Link</span>).  In an effort to determine the feasibility of such a treatment, researchers  in France conducted both in vitro (outside a living organism) and ex vivo—using  biopsy specimens of active celiac disease patients—studies on the  effects of PEP on gliadin peptides. </p> <p>For the in vitro studies the researchers used radio-reverse-phase  high-performance liquid chromatography and mass spectrometry to analyze  the degradation by PEP of 3H-labeled gliadin peptides 56-88 (33-mer).  In the ex vivo studies the researchers added PEP and 3H-peptides together  onto the mucosal side of duodenal biopsy specimens that were mounted in  Using chambers, and the peptide transport and digestion were analyzed  using radio-reverse-phase high-performance liquid chromatography.</p> <p>The results indicate that in both in vitro and ex vivo  studies the gliadin peptides were only partly degraded by 20 mu/ml of  PEP. This concentration of PEP decreased the quantity of intact gliadin  peptides (31-49 and 56-88) that crossed the intestinal biopsy specimens,  but did not prevent the intestinal passage of toxic or immunostimulatory  metabolites—for this the researchers determined that PEP concentrations  of at least 500 mu/ml for at least 3 hours was required to achieve full  detoxification of gliadin peptides, and thus prevent intestinal transport  of active fragments—<em>unfortunately this finding virtually eliminates  PEP as a possible treatment option for those with celiac disease. </em></p> <p>The researchers conclude optimistically, however: "After  prolonged exposure to high concentrations of PEP, the amount of immunostimulatory  gliadin peptides reaching the local immune system in celiac patients is  decreased. These results provide a basis to establish whether such conditions  are achievable in vivo (in living organisms)."</p> ]]></description><guid isPermaLink="false">927</guid><pubDate>Wed, 14 Sep 2005 00:00:00 +0000</pubDate></item><item><title>Celiac Disease, Autoimmune Diseases and Exposure to Gluten</title><link>https://www.celiac.com/celiac-disease/celiac-disease-autoimmune-diseases-and-exposure-to-gluten-r915/</link><description><![CDATA[
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<div>Scand J Gastroenterol. 2005 Apr;40(4):437-43.</div> <p>Celiac.com 07/28/2005 - In an effort to determine whether  gluten exposure in those with celiac disease can cause additional autoimmune  diseases, Finnish researchers evaluated the frequency of autoimmune disorders  in 703 adults and children with celiac disease, and compared them with  299 controls (normal duodenal histology). For each person in the study  the researchers assessed the effect of age at the end of follow-up, age  at diagnosis; actual gluten exposure time; and the gender and diagnostic  delay time. They then determined autoimmune disease incidence figures  that were expressed as a dependent variable via logistic regression analysis  (per 10,000 person-years). </p> <p>The researchers found that the celiac disease group had  a significantly higher prevalence of additional autoimmune diseases that  <em> was not affected by exposure to gluten.</em></p> <p> <strong>Additional Comments on this Study by Roy Jamron:</strong></p> <p>Autoimmune disease has a high prevalence in celiacs.  The following study concludes that the duration of gluten exposure in  celiacs is not a significant factor in the risk of developing autoimmune  disease. One diagnosed late in life with celiac disease does not appear  to be at greater risk for developing autoimmune disease. This seems counter-intuitive,  but there may be a good explanation for this result.</p> <p>Studies in the UK and Italy have demonstrated that the  prevalence of celiac disease in young children is essentially the same  as in adults, meaning celiac disease begins in infancy. Infancy is the  critical time period for the development of the immune system. Gluten  exposure and the onset of celiac disease symptoms early in life, therefore,  have a much greater and more important impact on the immune system and  its development than exposure to gluten later in life. Malabsorption during  infancy and early childhood can also adversely affect the crucial function  of the thymus, T cell production, and T cell repertoire. So the stage  is set early in life rather than later for increased risk of autoimmune  disease. The timing of gluten exposure in life seems to be more critical  to autoimmune disease risk rather than the overall lifetime duration of  gluten exposure. It is, therefore, extremely important to diagnose celiac  disease and initiate a gluten-free diet as soon as possible during infancy  and young childhood to lower the risk of autoimmune disease later in life.</p> ]]></description><guid isPermaLink="false">915</guid><pubDate>Thu, 28 Jul 2005 00:00:00 +0000</pubDate></item></channel></rss>
