scholarly journals Prevalence of celiac disease in siblings of Iranian patients with celiac disease

2011 ◽  
Vol 48 (2) ◽  
pp. 131-135 ◽  
Author(s):  
Bashir Chomeili ◽  
Majid Aminzadeh ◽  
Amir Kamal Hardani ◽  
Payam Fathizadeh ◽  
Pooya Chomeili ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Growth Retardation ◽  
Tissue Transglutaminase ◽  
Immunoglobulin A ◽  
Human Leukocyte ◽  
Clinical Findings ◽  
Duodenal Biopsy ◽  
Enzyme Linked Immunosorbent Assay ◽  
Positive Serology ◽  
Histological Changes

CONTEXT: Celiac disease, one of the best-known autoimmune human leukocyte antigen-dependent disorders, has a relatively increased prevalence in first-degree relatives. OBJECTIVE: To determine the prevalence of celiac disease in siblings of patients with confirmed celiac disease. METHODS: Siblings of confirmed celiac disease patients in our center were identified and enrolled in this study. Their serum immunoglobulin A and tissue transglutaminase antibody-enzyme-linked immunosorbent assay (anti-tissue transglutaminase, immunoglobulin A, and immunoglobulin G) were measured and multiple endoscopic duodenal biopsy specimens were obtained with parental consensus. Celiac disease was confirmed by observation of characteristic histological changes. RESULTS: A total of 49 children (male, 29; female, 20; age, 2-16 years) with confirmed celiac disease in a pediatric gastroenterology ward were studied from 1999 to 2006. We found 30 siblings (female, 16) all shared in both parents. The only measurement available was for immunoglobulin A tissue transglutaminase antibody. A duodenal biopsy was performed in all 30 siblings. Clinical findings such as abdominal pain, fatigue, growth retardation and diarrhea were found in 53.3% of the completely studied siblings, and positive serology without histological changes was identified in four cases. Both serology and biopsy (confirmed new cases) were positive in 2 of the 30 siblings. CONCLUSION: High prevalence of celiac disease among siblings of patients with confirmed celiac disease necessitates serologic screening (and confirmatory biopsy if indicated) in families having celiac disease. It is advantageous to diagnose the disease as soon as possible because early diagnosis and diet intervention may prevent serious complications such as growth retardation, short stature, chronic diarrhea, and malignancy.

Combining antibody tests and taking into account antibody levels improves serologic diagnosis of celiac disease

2015 ◽  
Vol 53 (10) ◽  
Author(s):  
Matthijs Oyaert ◽  
Pieter Vermeersch ◽  
Gert De Hertogh ◽  
Martin Hiele ◽  
Nathalie Vandeputte ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Tissue Transglutaminase ◽  
Human Leukocyte ◽  
Duodenal Biopsy ◽  
Hla Typing ◽  
High Antibody ◽  
Antibody Testing ◽  
Likelihood Ratios ◽  
Serologic Diagnosis ◽  
Antibody Levels

AbstractThe European Society for Pediatric Gastroenterology and Nutrition states that if IgA anti-tissue transglutaminase (tTG) exceeds 10 times the upper limit of normal (ULN), there is the possibility to diagnose celiac disease (CD) without duodenal biopsy, if supported by anti-endomysium testing and human leukocyte antigen (HLA) typing. We aimed to evaluate whether combining IgA tTG and IgG anti-deamidated gliadin peptide (DGP) antibody testing and taking into account the antibody levels improves clinical interpretation.We calculated likelihood ratios for various test result combinations using data obtained from newly diagnosed CD patients (n=156) [13 children <2 years, 45 children between 2 and 16 years, and 98 adults (>16 years)] and 974 disease controls. All patients and controls underwent duodenal biopsy. IgA anti-tTG and IgG anti-DGP assays were from Thermo Fisher and Inova.Likelihood ratios for CD markedly increased with double positivity and increasing antibody levels of IgA anti-tTG and IgG anti-DGP. Patients with double positivity and high antibody levels (>3 times, >10 times ULN) had a high probability for having CD (likelihood ratio ≥649 for >3 times ULN and ∞ for >10 times ULN). The fraction of CD patients with double positivity and high antibody levels was 59%–67% (depending on the assay) for >3 ULN and 33%–36% (depending on the assay) for >10 ULN, respectively. This fraction was significantly higher in children with CD than in adults.Combining IgG anti-DGP with IgA anti-tTG and defining thresholds for antibody levels improves the serologic diagnosis of CD.

scholarly journals Immunoglobulin G (IgG) Anti-Tissue Transglutaminase Antibodies Used as Markers for IgA-Deficient Celiac Disease Patients

2005 ◽  
Vol 12 (2) ◽  
pp. 254-258 ◽  
Author(s):  
Ingrid Dahlbom ◽  
Martin Olsson ◽  
Nahal Kazemi Forooz ◽  
Anders G. Sjöholm ◽  
Lennart Truedsson ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Tissue Transglutaminase ◽  
Immunoglobulin A ◽  
Good Alternative ◽  
Iga Deficiency ◽  
Enzyme Linked Immunosorbent Assay ◽  
Screening Methods ◽  
Igg Antibodies ◽  
Negative Results ◽  
Tissue Transglutaminase Antibodies

ABSTRACT The role of immunoglobulin A (IgA) anti-tissue transglutaminase antibodies (IgA-tTG) as predictors of untreated celiac disease (CoD) is well documented, and the presence and levels of these antibodies are most accurately monitored with native or recombinant human antigens. However, IgA-deficient CoD patients are not identified by IgA serology, and conflicting results concerning the diagnostic validity of IgG antibodies against gliadin (IgG-AGA), endomysium (IgG-EmA), and tTG (IgG-tTG) have been reported. The aim of the present study was to evaluate the utility of IgG-tTG for the detection of CoD in IgA-deficient patients. Samples from 115 IgA-deficient and 200 IgA-sufficient subjects were collected and tested for the presence of IgA and IgG antibodies against tTG, EmA, and AGA. Antibodies against tTG were measured by an enzyme-linked immunosorbent assay based on recombinant human tTG, and antibodies against EmA were determined by immunofluorescence. The values for IgG-tTG showed a higher correlation (correlation coefficient [r] = 0.91) with those for IgG-EmA for the IgA-deficient subjects than for the IgA-sufficient subjects (r = 0.88). The overall concordance of the positive and negative results between IgG-tTG and IgG-EmA was 97%, and the IgG-tTG assay discriminated between IgG-EmA-positive and -negative subjects with IgA deficiency at a rate of 100%. Elevated levels of IgG-tTG and IgG-EmA were measured in 70% of the IgA-sufficient subjects. IgG-tTG detection with recombinant human tTG is a good alternative to IgG-EmA detection, and the addition of IgG-tTG assessment to present screening methods may improve the ability to identify IgA-deficient subjects with CoD.

scholarly journals Screening for celiac disease among patients with Turner syndrome in Brasília, DF, midwest region of Brazil

2010 ◽  
Vol 47 (3) ◽  
pp. 246-249 ◽  
Author(s):  
Maria do Carmo Sorci Dias ◽  
Luiz Claudio Gonçalves de Castro ◽  
Lenora Gandolfi ◽  
Rodrigo Coutinho de Almeida ◽  
Mara Santos Córdoba ◽  
...  
Keyword(s):  
Celiac Disease ◽  
General Population ◽  
Turner Syndrome ◽  
Tissue Transglutaminase ◽  
Geographical Area ◽  
Immunoglobulin A ◽  
Human Leukocyte ◽  
High Risk Population ◽  
Additional Support ◽  
Histological Confirmation

CONTEXT: Several studies have demonstrated a higher prevalence of celiac disease (CD) among females with Turner syndrome when compared to the general population. Nevertheless, there is no record in literature concerning this investigation among Brazilian patients. OBJECTIVE: To assess the prevalence of CD among a group of Brazilian patients with Turner syndrome. METHODS: Fifty-six females with Turner syndrome and on gluten-containing diet were screened for CD utilizing immunoglobulin A antiendomysium (IgA-EMA) and immunoglobulin A anti-tissue transglutaminase (IgA-tTG) antibody assays. Additionally, they were genotyped for CD human leukocyte antigen (CD-HLA) predisposing alleles. Patients showing positivity in serological testing were offered to perform small intestine biopsy for histological confirmation. RESULTS: Mean age at diagnosis of Turner syndrome was 5.5 ± 4.4 years; mean age at screening for CD was 17.0 ± 9.3 years (from 10 months of age to 52 years). Two girls were positive for IgA-EMA and IgA-tTG, presented predisposing HLA-DQ2 alleles and both had the diagnosis of CD confirmed by jejunal biopsy. CONCLUSION: The 3.6% prevalence of biopsy-proven CD among this group of females with Turner syndrome is 10 times higher than the one among females from the general population of the same geographical area. This result provides additional support to an association between these two disorders and restates that girls and women with Turner syndrome represent a high risk population for developing CD.

Prevalence of celiac disease in adult patients with iron deficiency anemia of obscure origin

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mohamed N Farris ◽  
Rasha Y Shaheen ◽  
Mai A Youssef El-Deeb ◽  
Eman A Ebraheem
Keyword(s):  
Celiac Disease ◽  
Iron Deficiency ◽  
Iron Deficiency Anemia ◽  
Tissue Transglutaminase ◽  
Transferrin Saturation ◽  
Duodenal Biopsy ◽  
Adult Patients ◽  
Deficiency Anemia ◽  
Positive Serology ◽  
Obscure Origin

Abstract Background Celiac disease is an autoimmune disease which is underestimated over the world. Iron deficiency anemia can be the only presentable symptom for patients with celiac disease. Screening of patients with iron deficiency anemia of obscure origin by anti-tissue transglutaminase serum igA to diagnose celiac disease followed by upper GIT endoscopy is an important step. Objective to evaluate the prevalence of celiac disease in adult patients with iron-deficiency anemia of obscure origin. Methods The present study was a cross-sectional study which included 100 patients with a diagnosis of iron deficiency anemia recruited from Ain Shams University hospitals. All the patients were subjected to: Full history of gastrointestinal symptoms of celiac disease(CD), Age of onset of iron deficiency anemia, Complete blood picture, Serum iron, serum ferritin, transferrin saturation, Anti-tissue transglutaminase antibody immunoglobuline A, Upper gastrointestinal endoscopy and duodenal biopsy to patients who had positive serology. Results The present study showed that 8% of cases with iron deficiency anemia of obscure origin were ultimately diagnosed as cases of celiac diseases while 47% were diagnosed according to duodenal biopsy as potential celiac disease (where there was positive serology and intact villous architecture according to marsh classification) and 45%of cases were non-celiac disease. Conclusion Screening for celiac disease should be considered in patients with iron deficiency anemia of obscure origin

scholarly journals Chemiluminescent Immunoassay versus Enzyme Linked Immunosorbent Assays for IgA Anti-Tissue Transglutaminase Antibodies Assessment in Celiac Disease Children

2020 ◽  
Vol 71 (2) ◽  
pp. 45-51
Author(s):  
Oana Belei ◽  
Emil Radu Iacob ◽  
Daniela Iacob ◽  
Elena Amaricai ◽  
Otilia Marginean
Keyword(s):  
Celiac Disease ◽  
Tissue Transglutaminase ◽  
Immunoglobulin A ◽  
Hla Typing ◽  
Intestinal Biopsy ◽  
Enzyme Linked Immunosorbent Assay ◽  
Digestive Endoscopy ◽  
Statistical Comparison ◽  
Tissue Transglutaminase Antibodies ◽  
Chemiluminescent Immunoassay

Recent describing of atypical, silent and latent form of celiac disease (CD) increased the preocupation for screening methods.To perform a comparative study of immunoglobulin A (IgA) anti tissue-transglutaminase (tTG) antibodies (Ab) assessment using chemiluminescence versus Enzyme Linked Immunosorbent Assay (ELISA).The study included two lots.The first lot consisted in 35 biopsy confirmed CD children aged between two and 18 years.The control lot included 40 children with normal duodenal morphology on intestinal biopsy that underwent upper digestive endoscopy for different gastrointestinal symptoms.Serum samples were provided from all subjects for IgA measurement, IgA anti tTG and EMA assessment. Immulite 2500 Anti tTG IgA (Siemens Co, LA, USA) and ImmuLisa anti-hu tTG antibody IgA ELISA (Immco Diagnostics Inc, NY, USA) kits were used for tTG-Ab assessment. All children underwent HLA typing for DQ2/DQ8. The sensitivity for IgA tTG assessment was greater for chemiluminescence (93,3%) versus ELISA (86,6%), p[0,05, while specificity, positive and negative predictive value didn�t register significant differences. Statistical comparison of the two tested methods revealed a better sensitivity for chemiluminescence. Diagnosis algorithm optimisation may be obtained by associating IgA anti tTG-Ab assessment using chemiluminescence followed by EMA confirmation by indirect immunofluorescence for CD screening.

scholarly journals Evaluation of the INOVA Diagnostics Enzyme-Linked Immunosorbent Assay Kits for Measuring Serum Immunoglobulin G (IgG) and IgA to Deamidated Gliadin Peptides

2006 ◽  
Vol 13 (1) ◽  
pp. 150-151 ◽  
Author(s):  
Harry E. Prince
Keyword(s):  
Celiac Disease ◽  
Immunosorbent Assay ◽  
Immunoglobulin G ◽  
Immunoglobulin A ◽  
Serum Immunoglobulin ◽  
Enzyme Linked Immunosorbent Assay ◽  
Gliadin Antibodies ◽  
Gliadin Peptides ◽  
Disease Specific ◽  
Inova Diagnostics

ABSTRACT New assays for antibodies to deamidated gliadin peptides (DGP) expressing celiac disease-specific epitopes were evaluated using 154 sera previously tested for endomysial immunoglobulin A (IgA) (EMA), transglutaminase IgA (TGA), and conventional gliadin antibodies. DGP antibody results showed 97% concordance with EMA and TGA results. Of 56 sera negative for EMA and TGA but positive for conventional gliadin antibodies, 54 (96%) were negative for DGP antibodies.

Low-Risk Human Leukocyte Antigen Genes and Mild Villous Atrophy Typify Celiac Disease with Immunoglobulin A Deficiency

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Enrico Schirru ◽  
Rita Désirée Jores ◽  
Rossano Rossino ◽  
Mara Corpino ◽  
Francesco Cucca ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Human Leukocyte Antigen ◽  
Villous Atrophy ◽  
Immunoglobulin A ◽  
Human Leukocyte ◽  
Low Risk ◽  
Leukocyte Antigen

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 Testing for Gluten-Related Disorders in Clinical Practice: The Role of Serology in Managing the Spectrum of Gluten Sensitivity

2011 ◽  
Vol 25 (4) ◽  
pp. 193-197 ◽  
Author(s):  
David Armstrong ◽  
Andrew C Don-Wauchope ◽  
Elena F Verdu
Keyword(s):  
Celiac Disease ◽  
Serological Test ◽  
Tissue Transglutaminase ◽  
Immunoglobulin A ◽  
Intestinal Damage ◽  
Gluten Sensitivity ◽  
Serological Testing ◽  
Diet Compliance ◽  
At Risk Populations ◽  
Irritable Bowel

Immunoglobulin A tissue transglutaminase is the single most efficient serological test for the diagnosis of celiac disease. It is well known that immunoglobulin A tissue transglutaminase levels correlate with the degree of intestinal damage, and that values can fluctuate in patients over time. Serological testing can be used to identify symptomatic individuals that need a confirmatory biopsy, to screen at-risk populations or to monitor diet compliance in patients previously diagnosed with celiac disease. Thus, interpretation of serological testing requires consideration of the full clinical scenario. Antigliadin tests are no longer recommended for the diagnosis of classical celiac disease. However, our understanding of the pathogenesis and spectrum of gluten sensitivity has improved, and gluten-sensitive irritable bowel syndrome patients are increasingly being recognized. Studies are needed to determine the clinical utility of antigliadin serology in the diagnosis of gluten sensitivity.

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