Anti-transglutaminase detection followed by endomysium antibody confirmation test on monkey esophagus is the best strategy to screen for celiac disease

2018 ◽  
Vol 78 (3) ◽  
pp. 243-244
Author(s):  
Marco Di Tola ◽  
Rossella Casale ◽  
Mariacatia Marino ◽  
Raffaele Borghini ◽  
Umberto Occhiuzzi ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Confirmation Test ◽  
Monkey Esophagus ◽  
Endomysium Antibody

scholarly journals Prevalence of Celiac Disease in Collagenous and Lymphocytic Colitis

2000 ◽  
Vol 14 (11) ◽  
pp. 919-921 ◽  
Author(s):  
Helen Rachel Gillett ◽  
Hugh James Freeman
Keyword(s):  
Celiac Disease ◽  
Small Bowel ◽  
Tissue Transglutaminase ◽  
Immunoglobulin A ◽  
Collagenous Colitis ◽  
Lymphocytic Colitis ◽  
Small Bowel Biopsy ◽  
Major Antigen ◽  
Immunofluorescent Technique ◽  
Endomysium Antibody

Both collagenous and lymphocytic colitis have been described in patients with celiac disease, suggesting an association between the conditions. Over the past few years, the availability, sensitivity and specificity of serological markers for celiac disease have improved - the most recent advancement being the description of tissue transglutaminase as the major antigen for endomysium antibody. A quantitative ELISA was used to measure titres of immunoglobulin A (IgA) antibody to tissue transglutaminase (tTG) along with an immunofluorescent technique for IgA endomysium antibody (EmA) in 15 patients with lymphocytic colitis and eight with collagenous colitis to determine whether celiac disease latency could be detected. One patient with lymphocytic colitis demonstrated both elevated titres of tTG antibody and positive EmA, and small bowel biopsy confirmed celiac disease. One patient with collagenous colitis had a slightly elevated titre of tTG antibody with a negative EmA, and results of a small bowel biopsy were normal. Three other patients with lymphocytic colitis were already treated for previously diagnosed celiac disease. The prevalence of celiac disease occurring in lymphocytic colitis was found to be 27%, but no cases of celiac disease in association with collagenous colitis were found.

scholarly journals IgG Antibodies against Deamidated Gliadin Peptides for Diagnosis of Celiac Disease in Patients with IgA Deficiency

2010 ◽  
Vol 56 (3) ◽  
pp. 464-468 ◽  
Author(s):  
Danilo Villalta ◽  
Elio Tonutti ◽  
Christian Prause ◽  
Sibylle Koletzko ◽  
H Holm Uhlig ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Blood Donors ◽  
Tissue Transglutaminase ◽  
Iga Deficiency ◽  
Diagnostic Sensitivity ◽  
Igg Antibodies ◽  
Diagnostic Specificity ◽  
Gliadin Peptides ◽  
Endomysium Antibodies ◽  
Monkey Esophagus

AbstractBackground: Assays for IgG antibodies against deamidated gliadin (IgG-anti-dGli) are comparable in performance with tests detecting IgA antibodies against tissue transglutaminase (IgA-anti-tTG) in diagnosing celiac disease (CD). IgA-anti-tTG are absent in IgA deficiency, a condition often associated with CD. In IgA deficiency, IgG-anti-tTG, which have a lower overall diagnostic accuracy, are routinely measured. We examined whether IgG-anti-dGli would be useful for diagnosing CD in patients with IgA deficiency.Methods: We studied 34 IgA-deficient CD patients, 185 IgA-competent newly diagnosed children with CD, 316 children without CD, 400 adult blood donors, and 6 control IgA-deficient individuals without CD. Anti-dGli and anti-tTG were measured by ELISA, and endomysium antibodies (EmA) were measured by immunofluorescence on monkey esophagus (IgA as well as IgG class for all antibodies). We calculated diagnostic sensitivity (percentage of patients above cutoff with 95% CIs) according to age-specific cutoffs for 95% diagnostic specificity and according to cutoffs proposed by the manufacturer of the assays.Results: No IgA-deficient CD patients were positive for any IgA-based antibody assay. Diagnostic sensitivity of IgG-anti-tTG was 91.2% (95% CI 76.3%–97.7%) according to age-specific cutoffs and 82.4% (66.1%–92.0%) according to manufacturer cutoffs. The diagnostic sensitivity of IgG-EmA was 75.8% (58.8%–87.4%) and the sensitivity of IgG-anti-dGli was 88.2% (72.8%–95.9%) according to both cutoffs.Conclusions: IgG-anti-dGli and IgG-anti-tTG have comparable diagnostic sensitivities for IgA-deficient celiac patients. IgG-anti-dGli may be useful for diagnosing CD in IgA-deficient patients.

scholarly journals Increased Prevalence of Celiac Disease in Girls with Turner Syndrome Detected Using Antibodies to Endomysium and Tissue Transglutaminase

2000 ◽  
Vol 14 (11) ◽  
pp. 915-918 ◽  
Author(s):  
PM Gillett ◽  
HR Gillett ◽  
DM Israel ◽  
DL Metzger ◽  
L Stewart ◽  
...  
Keyword(s):  
British Columbia ◽  
Celiac Disease ◽  
Small Bowel ◽  
Turner Syndrome ◽  
Tissue Transglutaminase ◽  
Immunoglobulin A ◽  
The Novel ◽  
East Indian ◽  
High Prevalence ◽  
Endomysium Antibody

OBJECTIVE: To establish the prevalence of celiac disease (CD) in girls with Turner syndrome (TS) in British Columbia.METHODS: Forty-five girls with TS were prospectively screened for CD using blinded testing with the current ’gold standard’ - immunoglobulin A (IgA) endomysium antibody (EmA) and the novel IgA tissue transglutaminase antibody (tTG). Those with positive results were offered small bowel biopsies, and a gluten-free diet was recommended if CD was confirmed.RESULTS: One asymptomatic prepubertal East Indian girl was positive for EmA, had an elevated tTG concentration of 560 U/mL and histological evidence of CD. Seven girls were negative for EmA but had elevated tTG concentrations (175 to 250 U/mL); five were white, one was Asian and one was East Indian. Small bowel biopsies were performed on three girls, and the histologies were normal. The remaining four patients declined biopsy.CONCLUSIONS: One girl with TS was identified with CD from 45 screened, giving an overall biopsy-confirmed prevalence of 2.2%. This study confirms previous observations placing girls with TS at higher risk for CD and suggests a similar high prevalence in British Columbia.

Screening by Anti-Endomysium Antibody for Celiac Disease in Diabetic Children and Adolescents in Austria

2000 ◽  
Vol 30 (4) ◽  
pp. 391-396 ◽  
Author(s):  
Edith Schober ◽  
Barbara Bittmann ◽  
Gerhard Granditsch ◽  
Wolf-Dietrich Huber ◽  
Amelie Hüppe ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Children And Adolescents ◽  
Diabetic Children ◽  
Endomysium Antibody

scholarly journals Prevalence of IgA Antibodies to Endomysium and Tissue Transglutaminase in Primary Biliary Cirrhosis

2000 ◽  
Vol 14 (8) ◽  
pp. 672-675 ◽  
Author(s):  
Helen R Gillett ◽  
Karen Cauch-Dudek ◽  
E Jenny L Healthcote ◽  
Hugh J Freeman
Keyword(s):  
Celiac Disease ◽  
Primary Biliary Cirrhosis ◽  
Tissue Transglutaminase ◽  
Case Reports ◽  
Biliary Cirrhosis ◽  
Gluten Free ◽  
Iga Antibodies ◽  
Tissue Transglutaminase Antibodies ◽  
Untreated Celiac Disease ◽  
Endomysium Antibody

The association between celiac disease and primary biliary cirrhosis has been described in several case reports and small screening studies, with varying prevalence rates. Stored sera from 378 patients with primary biliary cirrhosis were tested for immunoglobulin (Ig) A endomysium and tissue transglutaminase antibodies. Ten patients were positive for both antibodies (2.6%); five of these patients had had small bowel biopsies confirming celiac disease. A further 44 patients (11.6%) had raised titres of IgA tissue transglutaminase antibody but were negative for IgA endomysium antibody. The increased prevalence of celiac-related antibodies in patients with primary biliary cirrhosis suggests that the two conditions are associated, although the reason for the association remains unclear. Patients with primary biliary cirrhosis should be considered to be at high risk for celiac disease. Although liver biochemistry does not improve when these patients are fed a gluten-free diet, the complications of untreated celiac disease warrant the identification and treatment of the condition in this population.

scholarly journals Recombinant Human Tissue Transglutaminase ELISA for the Diagnosis of Gluten-sensitive Enteropathy

1999 ◽  
Vol 45 (12) ◽  
pp. 2142-2149 ◽  
Author(s):  
Miklós Sárdy ◽  
Uwe Odenthal ◽  
Sarolta Kárpáti ◽  
Mats Paulsson ◽  
Neil Smyth
Keyword(s):  
Guinea Pig ◽  
Tissue Transglutaminase ◽  
Serum Samples ◽  
Serological Tests ◽  
Specificity And Sensitivity ◽  
Gluten Sensitive Enteropathy ◽  
One Step ◽  
The Mean ◽  
Monkey Esophagus ◽  
Endomysium Antibody

Abstract Background: Tissue transglutaminase (TGc) has recently been identified as the major, if not the sole, autoantigen of gluten-sensitive enteropathy (GSE). We developed and validated an ELISA based on the human recombinant antigen and compared it to existing serological tests for GSE [guinea pig TGc ELISA and endomysium antibody (EMA) test]. Methods: Human TGc was expressed in the human embryonic kidney cell line 293-EBNA as a C-terminal fusion protein with the eight-amino acid Strep-tag II allowing one-step purification via streptavidin affinity chromatography. We carried out ELISA assays for IgA antibodies against TGc using calcium-activated human and guinea pig TGc. The sera were also tested on monkey esophagus sections by indirect immunofluorescence for IgA EMA. We examined 71 serum samples from patients with GSE (38 with celiac disease, 33 with dermatitis herpetiformis), including 16 on therapy, and 53 controls. Results: The human TGc could be expressed and purified as an active enzyme giving a single band on a Coomassie-stained gel. The mean intra- and interassay CVs for the human TGc ELISA were 3.2% and 9.2%, respectively. The area under the ROC curve was 0.999. The specificity and sensitivity were 98.1% (95% confidence interval, 95.7–100%) and 98.2% (95.9–100%), respectively. Conclusions: The human TGc ELISA was somewhat superior to the guinea pig TGc ELISA, and was as specific and sensitive as the EMA test. The human TGc-based ELISA is the method of choice for easy and noninvasive screening and diagnosis of GSE.

scholarly journals Diagnostic value of various serum antibodies detected by diverse methods in childhood celiac disease

1996 ◽  
Vol 42 (11) ◽  
pp. 1838-1842 ◽  
Author(s):  
L Sacchetti ◽  
A Ferrajolo ◽  
G Salerno ◽  
P Esposito ◽  
M M Lofrano ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Celiac Disease ◽  
Umbilical Cord ◽  
Diagnostic Value ◽  
Diagnostic Sensitivity ◽  
Antibody Detection ◽  
Human Umbilical Cord ◽  
Iga Antibody ◽  
Monkey Esophagus ◽  
Gliadin Antibody

Abstract The diagnostic performances of antiendomysium IgA detected on monkey esophagus and human umbilical cord smooth muscle, of antireticulin IgA, and of antigliadin IgA and IgG were calculated in 74 children with celiac disease (CD) or other gastrointestinal disorders. We also compared four methods for gliadin antibody detection. With a diagnostic specificity of 100%, diagnostic sensitivity was 94% for antireticulin IgA, 93% for antiendomysium IgA when detected on human umbilical cord smooth muscle, and 97% when detected on monkey esophagus. The diagnostic sensitivity for gliadin antibody was highest with an ELISA procedure, followed by fluorogenic detection (94% for IgG, 91% for IgA, 97% with IgA and IgG combined). Because of its high diagnostic sensitivity and ease and speed of use, the combined antigliadin IgG and IgA antibody assay is suitable for screening large groups of patients. In IgG- or IgA-positive cases, the more demanding and more specific antiendomysium IgA evaluation is required to confirm suspected CD.

scholarly journals Celiac Disease and Non-celiac Gluten Sensitivity Screening in Juvenile Idiopathic Arthritis Patients

2020 ◽  
Author(s):  
Günsel Kutluk ◽  
Hafize Emine Sönmez ◽  
Hülya Kaçmaz
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Celiac Disease ◽  
Tissue Transglutaminase ◽  
Cross Sectional Study ◽  
Gluten Sensitivity ◽  
Laboratory Findings ◽  
Cross Sectional ◽  
The Mean ◽  
Autoimmune Etiology ◽  
Endomysium Antibody

INTRODUCTION: Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease in children characterized by autoimmune etiology. In previous studies, increased Celiac disease (CD) frequency was reported in patients diagnosed with JIA. In this study, CD and non-celiac gluten sensitivity (NCGS) in patients diagnosed with JIA were investigated. METHODS: Sixty-one (57.3%) JIA patients admitted to the pediatric rheumatology outpatient clinic between January 2020 and April 2020 were included in this cross-sectional study. All patients were evaluated with clinical and laboratory findings in terms of CD and NCGS. Total immunoglobulin (Ig)-A, tissue transglutaminase antibody (tTG) IgA and IgG, anti-endomysium-antibody (EMA) IgA and IgG and anti-gliadin-antibody (AGA) IgA and IgG levels were measured in all patients. RESULTS: Sixty-one JIA patients, 35 girls, were included in the study. The mean age of the patients was 11.4 ± 4.6 years, the mean age at diagnosis is 10.2 ± 3.4 years. Thirty-three patients were diagnosed with oligoarticular JIA; 18 patients with enthesitis-related arthritis, 8 patients with polyarticular JIA, and 2 patients with psoriatic arthritis. All patients were using disease-modifying antirheumatic drugs during the study. Thirty-five patients were receiving biological therapy, concomitantly. Two patients had abdominal pain, two patients had indigestion, and two patients had constipation. None of the patients had growth retardation. EMA IgA and IgG, tTG IgA and IgG, AGA IgA and IgG tests were negative in all patients. DISCUSSION AND CONCLUSION: CD and NCGS were not detected in our JIA patients. Multi-center studies may guide clinicians in under what circumstances to perform CD and NCGS screening in JIA patients.

Sign in / Sign up

Export Citation Format

Share Document