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Rispo A, Calabrese G, Toro B, Olmo O, Ricciolino S, Cantisani NM, Limansky L, Giaquinto M, Caso R, Imperatore N. "Per ELISA": Time to adopt anti-transglutaminase/deamidated gliadin peptide diagnostic combination in coeliac disease of adults? Dig Liver Dis 2024; 56:988-993. [PMID: 38538378 DOI: 10.1016/j.dld.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/22/2024] [Accepted: 03/01/2024] [Indexed: 05/28/2024]
Abstract
BACKGROUND Anti-endomysial antibodies (EMA) and anti-tissue transglutaminases (a-tTg) play a pivotal role in coeliac disease (CD) diagnosis. Deamidated anti-gliadin peptides (DGP) were added to the CD diagnostic workup. AIMS We aimed to compare the diagnostic accuracies of ELISA-based (a-tTg/DGP) and immunofluorescence-ELISA-based strategies (EMA/a-tTg) for CD diagnosis. METHODS From November 2020 to November 2022, we undertook an observational prospective study including consecutive adult patients with suspected CD. All subjects were tested for EMA, a-tTg and DGP IgA. An ROC curve was plotted to establish the best specificity cut-off of a-tTg and DGP levels, which would predict the presence of Marsh≥2 and Marsh=3. The diagnostic accuracies of a-tTg/DG and EMA/a-tTg were compared. RESULTS The study included 275 CD patients. Histology showed Marsh=1 in 9.9%, Marsh=2 in 4.5%, and Marsh=3 in 85.6.%. The best cut-off value of a-tTg for predicting Marsh≥2 was 42 U/mL, while the best cut-off for predicting atrophy was 68.4 U/mL. The best cut-off value of DGP for predicting Marsh≥2 was 56 U/mL, while the best cut-off for predicting atrophy was 78 U/mL. A-tTg/EMA showed 97% sensitivity and 100% specificity, whereas a-tTg/DGP showed 94% sensitivity and 100% specificity. CONCLUSION A-tTg/DGP is accurate for CD diagnosis and could reduce costs and operator-dependency of EMA. DGP, together with a-tTg, could replace EMA in CD diagnosis.
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Affiliation(s)
- Antonio Rispo
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Giulio Calabrese
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy.
| | - Benedetta Toro
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Oriana Olmo
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Simona Ricciolino
- Gastroenterology, "Santa Maria Delle Grazie" Hospital, Pozzuoli, Naples, Italy
| | - Nicola Mattia Cantisani
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Lara Limansky
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Miriam Giaquinto
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Rossella Caso
- Gastroenterology, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - Nicola Imperatore
- Gastroenterology, "Santa Maria Delle Grazie" Hospital, Pozzuoli, Naples, Italy
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Punia P, Bala K, Verma M, Nandi A, Mahlotra P, Singh S, Garg S, Parmar A, Kumar D. Feasibility of a "No-Biopsy" Approach for the Diagnosis of Celiac Disease in Symptomatic Adults. Cureus 2024; 16:e54578. [PMID: 38523934 PMCID: PMC10957510 DOI: 10.7759/cureus.54578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2024] [Indexed: 03/26/2024] Open
Abstract
Celiac disease (CD) is an immune-mediated enteropathy, caused by hypersensitivity to gluten in genetically predisposed individuals. The worldwide prevalence of CD has been estimated to be approximately 1%. Most guidelines for diagnosis of CD rely on a sequential approach, with serological testing of antibodies against tissue transglutaminase (tTG) as a first-line test, followed by a duodenal biopsy. However, GI biopsy is an invasive procedure with various complications. Hence, this study was planned to ascertain whether it could be possible to have a non-biopsy approach, using only serological markers to establish the diagnosis of CD in adults. MATERIAL AND METHODS It was a retrospective analysis of medical records of all biopsy-diagnosed CD patients with available anti-tTGA antibodies reports from 2019 to 2023. The patients were divided into three groups based on Marsh grading and anti-tTGA antibody levels were compared using various statistical tests. RESULTS A total of 94 biopsy-diagnosed symptomatic CD patients with anti-tTGA antibody reports available formed the study group. Of these, 54 had biopsy findings consistent with Marsh 3 lesion, three had Marsh 2 lesion, and 37 had Marsh 1 lesion. A significant correlation existed between Marsh grading 3 lesion and anti-tTGA antibody levels above the upper limit of normal (ULN) x 10. CONCLUSION Serum levels of anti-tTGA antibodies greater than 10 x ULN can be used to identify symptomatic patients with Marsh grade 3 CD lesions.
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Affiliation(s)
- Parul Punia
- Microbiology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Kiran Bala
- Microbiology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Mansi Verma
- Microbiology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Ankita Nandi
- Microbiology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Parveen Mahlotra
- Gastroenterology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Sunita Singh
- Pathology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Seema Garg
- Microbiology, BPS Government Medical College for Women, Sonepat, IND
| | - Aparna Parmar
- Microbiology, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
| | - Devender Kumar
- Oral Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, IND
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Ciacci C, Bai JC, Holmes G, Al-Toma A, Biagi F, Carroccio A, Ciccocioppo R, Di Sabatino A, Gingold-Belfer R, Jinga M, Makharia G, Niveloni S, Norman GL, Rostami K, Sanders DS, Smecuol E, Villanacci V, Vivas S, Zingone F. Serum anti-tissue transglutaminase IgA and prediction of duodenal villous atrophy in adults with suspected coeliac disease without IgA deficiency (Bi.A.CeD): a multicentre, prospective cohort study. Lancet Gastroenterol Hepatol 2023; 8:1005-1014. [PMID: 37696284 DOI: 10.1016/s2468-1253(23)00205-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/30/2023] [Accepted: 06/30/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Whether coeliac disease in adults can be diagnosed with serology alone remains controversial. We aimed to evaluate the accuracy of serum anti-tissue transglutaminase IgA (tTG-IgA) in the diagnosis of coeliac disease. METHODS In this multicentre, prospective cohort study, adult participants (aged ≥18 years) with suspected coeliac disease without IgA deficiency who were not on a gluten-free diet and who had a local serum tTG-IgA measurement, were enrolled from Feb 27, 2018, to Dec 24, 2020, by 14 tertiary referral centres (ten from Europe, two from Asia, one from Oceania, and one from South America) to undergo local endoscopic duodenal biopsy. Local serum tTG-IgA was measured with 14 different test brands and concentration expressed as a multiple of each test's upper limit of normal (ULN), and defined as positive when greater than 1 times the ULN. The main study outcome was the reliability of serum tests for the diagnosis of coeliac disease, as defined by duodenal villous atrophy (Marsh type 3 or Corazza-Villanacci grade B). Histology was evaluated by the local pathologist, with discordant cases (positive tTG-IgA without duodenal villous atrophy or negative tTG-IgA with duodenal villous atrophy) re-evaluated by a central pathologist. The reliability of serum tests for the prediction of duodenal villous atrophy was evaluated according to sensitivity, specificity, positive predictive value, negative predictive value, and the area under the receiver operating characteristic curve (AUC) for categorical and continuous data. FINDINGS We enrolled 436 participants with complete local data on serum tTG-IgA and duodenal histology (296 [68%] women and 140 [32%] men; mean age 40 years [SD 15]). Positive serum tTG-IgA was detected in 363 (83%) participants and negative serum tTG-IgA in 73 (17%). Of the 363 participants with positive serum tTG-IgA, 341 had positive histology (true positives) and 22 had negative histology (false positives) after local review. Of the 73 participants with negative serum tTG-IgA, seven had positive histology (false negatives) and 66 had negative histology (true negatives) after local review. The positive predictive value was 93·9% (95% CI 89·2-98·6), the negative predictive value was 90·4% (85·5-95·3), sensitivity was 98·0% (95·3-100·0), and specificity was 75·0% (66·6-83·4). After central re-evaluation of duodenal histology in 29 discordant cases, there were 348 true positive cases, 15 false positive cases, 66 true negative cases, and seven false negative cases, resulting in a positive predictive value of 95·9% (92·0-99·8), a negative predictive value of 90·4% (85·5-95·3), a sensitivity of 98·0% (95·3-100·0), and a specificity of 81·5% (73·9-89·1). Either using the local or central definition of duodenal histology, the positive predictive value of local serum tTG-IgA increased when the serological threshold was defined at increasing multiples of the ULN (p<0·0001). The AUC for serum tTG-IgA for the prediction of duodenal villous atrophy was 0·87 (95% CI 0·81-0·92) when applying the categorical definition of serum tTG-IgA (positive [>1 × ULN] vs negative [≤1 × ULN]), and 0·93 (0·89-0·96) when applying the numerical definition of serum tTG-IgA (multiples of the ULN). Additional endoscopic findings included peptic gastritis (nine patients), autoimmune atrophic gastritis (three), reflux oesophagitis (31), gastric or duodenal ulcer (three), and Barrett's oesophagus (one). In the 1-year follow-up, a midgut ileum lymphoma was diagnosed in a woman on a gluten-free diet. INTERPRETATION Our data showed that biopsy could be reasonably avoided in the diagnosis of coeliac disease in adults with reliable suspicion of coeliac disease and high serum tTG-IgA. FUNDING None.
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Affiliation(s)
- Carolina Ciacci
- Centre for Coeliac Disease, AOU San Giovanni Di Dio e Ruggi d'Aragona, Salerno, Italy; Department of Medicine, Surgery, and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, Italy.
| | - Julio Cesar Bai
- Research Institutes, Universidad del Salvador, Buenos Aires, Argentina; Small Bowel Section, Dr C Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Geoffrey Holmes
- Department of Gastroenterology, Royal Derby Hospital, Derby, UK
| | - Abdulbaqi Al-Toma
- Department of Gastroenterology and Hepatology, St Antonius Hospital, Nieuwegein, Netherlands
| | - Federico Biagi
- Department of Internal Medicine and Medical Therapy, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy; Gastroenterology Unit of Pavia Institute, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
| | - Antonio Carroccio
- Unit of Internal Medicine, Cervello Hospital, University of Palermo, Palermo, Italy
| | - Rachele Ciccocioppo
- Gastroenterology Unit, Department of Medicine, AOUI Policlinico GB Rossi, University of Verona, Verona, Italy
| | - Antonio Di Sabatino
- Department of Internal Medicine and Medical Therapy, San Matteo Hospital Foundation, University of Pavia, Pavia, Italy
| | - Rachel Gingold-Belfer
- Gastroenterology Division, Rabin Medical Centre, Beilinson Hospital, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Mariana Jinga
- Gastroenterology Department, Carol Davila University of Medicine and Pharmacy, Central Military Emergency University Hospital, Bucharest, Romania
| | - Govind Makharia
- Department of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, India
| | - Sonia Niveloni
- Small Bowel Section, Dr C Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Gary L Norman
- Research and Development, Headquarters and Technology Centre for Autoimmunity, Werfen, San Diego, CA, USA
| | - Kamran Rostami
- Gastroenterology Unit, MidCentral DHB, Palmerston North, New Zealand
| | - David S Sanders
- Academic Unit of Gastroenterology, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - Edgardo Smecuol
- Small Bowel Section, Dr C Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Vincenzo Villanacci
- Institute of Pathology, Spedali Civili University of Brescia, Brescia, Italy
| | - Santiago Vivas
- Gastroenterology Unit, University Hospital of Leon, Leon, Spain
| | - Fabiana Zingone
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
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Anbardar MH, Soleimani N, Torabi Dashtaki E, Honar N, Zahmatkeshan M, Mohammadzadeh S. Do Serological Tests Eliminate the Need for Endoscopic Biopsy for the Diagnosis of Symptomatic Patients with Celiac Disease? A Retrospective Study with Review of Literature. Middle East J Dig Dis 2023; 15:263-269. [PMID: 38523882 PMCID: PMC10955990 DOI: 10.34172/mejdd.2023.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 08/07/2023] [Indexed: 03/26/2024] Open
Abstract
Background: Celiac disease is one of the most common genetic allergies worldwide. The prevalence of celiac disease in Iran is similar to or even higher than the global prevalence. Celiac disease is a chronic inflammatory disease that affects the small intestine. Affected patients are allergic to gluten protein that exists in some grains, such as wheat and barley. Methods: Serological endomysial IgA antibody (EMA-AB) and tissue transglutaminase IgA antibody (TTG-IgA) tests were performed on 114 patients aged the ages of 0-18 years with histopathological findings of celiac disease. The results of these tests were compared to the results of the histopathological study of the duodenal biopsy. Results: Based on the receiver operating characteristic (ROC) curve and a calculation of the TTG-IgA test's sensitivity and specificity, the best diagnostic limit for the TTG-IgA test is 144, which has the best sensitivity and specificity. At this value (cut-off), the test's sensitivity was 62%, and the specificity was 93.7%. For the endomysial test, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were 80%, 93%, 90%, and 75%, respectively. Conclusion: The diagnostic accuracy of the endomysial test is better than that of the TTG-IgA test in general for diagnosing patients with celiac disease. In the TTG-IgA test, false-positive cases are high due to a cut-off of 20, reducing the test's specificity. In these false-positive cases, the endomysial test helps in better diagnosis.
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Affiliation(s)
| | - Neda Soleimani
- Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Naser Honar
- Department of Pediatrics, Shiraz University of Medical Sciences, Shiraz, Iran
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Shiha MG, Raju SA, Sidhu R, Penny HA. The debate in the diagnosis of coeliac disease - time to go 'no-biopsy'? Curr Opin Gastroenterol 2023; 39:192-199. [PMID: 37144537 DOI: 10.1097/mog.0000000000000929] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
PURPOSE OF REVIEW Duodenal biopsies have been central to making a diagnosis of coeliac disease for the last 70 years. Recent paediatric guidelines have reduced the emphasis on duodenal biopsies with the incorporation of a 'no-biopsy' arm to the diagnostic pathway. This review discusses the no-biopsy approach in adults and highlights advances in alternative (non-biopsy) diagnostic modalities in coeliac disease. RECENT FINDINGS Evidence suggests that a no-biopsy approach for the diagnosis of adult coeliac disease is accurate. However, a number of factors still favour duodenal biopsy sampling in specific patient groups. Moreover, several factors need to be considered if this pathway is implemented into local gastroenterology services. SUMMARY Duodenal biopsies remain an important step in the diagnosis of adult coeliac disease. However, an alternative approach that removes the necessity for biopsies may be an option in selected adults. If further guidelines incorporate this pathway, then efforts should focus on supporting a dialogue between primary and secondary care to facilitate the appropriate implementation of this approach.
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Affiliation(s)
- Mohamed G Shiha
- Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust
- Academic Unit of Gastroenterology, Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Suneil A Raju
- Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust
- Academic Unit of Gastroenterology, Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Reena Sidhu
- Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust
- Academic Unit of Gastroenterology, Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Hugo A Penny
- Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust
- Academic Unit of Gastroenterology, Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
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Galli G, Carabotti M, Conti L, Scalamonti S, Annibale B, Lahner E. Comparison of Clinical, Biochemical and Histological Features between Adult Celiac Patients with High and Low Anti-Transglutaminase IgA Titer at Diagnosis and Follow-Up. Nutrients 2023; 15:2151. [PMID: 37432272 DOI: 10.3390/nu15092151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 07/12/2023] Open
Abstract
In adults, celiac disease (CD) diagnosis is based on specific serology (anti-transglutaminase IgA-anti-tTG) and duodenal histology. Evidence is raising the possibility of perform CD diagnosis based only on high anti-tTG titer in children. We aimed to evaluate clinical, histological and biochemical differences between adult patients with high tTG IgA titer (HT) and those with low titer (LT) at CD diagnosis and follow-up. This retrospective study included consecutive adult CD patients divided into two groups: HT (anti-tTG > 10 × ULN) and LT (anti-tTG < 10 × ULN). Clinical, biochemical and histological features were compared between groups at CD diagnosis and at follow-up. A total of 291 patients were included (HT: 47.1%; LT: 52.9%). At CD diagnosis, HT patients showed a non 'classical' presentation (p = 0.04), Marsh 3C (p = 0.005), hypoferritinaemia (p = 0.006) and osteopenia/osteoporosis (p = 0.04) more frequently than LT patients. A total of 216 patients (HT: 48.6%; LT: 51.4%) performed a follow-up after a median Gluten-free diet of 14 months; HT patients had persistent antibodies positivity (p = 0.001) more frequently and GI symptoms (p = 0.04) less frequently than LT patients. In conclusion, HT patients presented severe histological damage more frequently at diagnosis, recovering similarly to LT patients after the start of the Gluten-free diet. At follow-up, anti-tTG persisted positive in HT more frequently compared to LT patients, without differences regarding histological recovery and clinical improvement.
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Affiliation(s)
- Gloria Galli
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea Hospital, 00189 Rome, Italy
| | - Marilia Carabotti
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea Hospital, 00189 Rome, Italy
| | - Laura Conti
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea Hospital, 00189 Rome, Italy
| | - Silvia Scalamonti
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea Hospital, 00189 Rome, Italy
| | - Bruno Annibale
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea Hospital, 00189 Rome, Italy
| | - Edith Lahner
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Sant'Andrea Hospital, 00189 Rome, Italy
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Is There a Need to Undertake Conventional Gastroscopy and Biopsy When Making the Diagnosis of Coeliac Disease in Adults? J Clin Gastroenterol 2023; 57:139-142. [PMID: 36598805 DOI: 10.1097/mcg.0000000000001806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Celiac disease is a common autoimmune condition characterized by small intestinal inflammation and mucosal damage triggered by an inappropriate immune response to ingested gluten. Gastroscopy and duodenal biopsy are currently the gold standard approach to diagnosing celiac disease in adults. However, the emergence of highly accurate serological tests for celiac disease in the last 2 decades led to a change in the pediatric guidelines to diagnose celiac disease without biopsy in selected patients. Adopting this no-biopsy approach to diagnose celiac disease in adults remains controversial, but the evidence supporting it is growing.
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Correlation of Anti-Tissue Transglutaminase Antibodies With the Mucosal Changes and IgA Status of Children With Celiac Disease. J Pediatr Gastroenterol Nutr 2022; 75:743-748. [PMID: 36123770 DOI: 10.1097/mpg.0000000000003620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVES The objective of this study was to assess the association between serological markers and changes of the intestinal mucosa in children with celiac disease (CD). METHODS Clinical data from CD patients under 15 years old were collected from the participating centers in an on-line multicenter nationwide observational Spanish registry called REPAC-2 (2011-2017). Correlation between anti-tissue transglutaminase antibodies (t-TGA) levels and other variables, including mucosal damage and clinical findings (symptoms, age, and gender), was assessed. RESULTS A total of 2955 of 4838 patients had t-TGA and a small bowel biopsy (SBB) performed for CD diagnosis. A total of 1931 (66.2%) patients with normal IgA values had a Marsh 3b-c lesion and 1892 (64.9%) had t-TGA Immunoglobulin A (IgA) ≥ 10 times upper limit of normal (ULN). There is a statistically significant association between t-TGA IgA levels and the degree of mucosal damage ( P < 0.001), the higher the t-TGA IgA levels the more severe the mucosal damage. Those patients who reported symptoms had more severe mucosal damage ( P = 0.001). On the contrary, there was a negative association between age and changes of the intestinal mucosa ( P < 0.001). No association was found with gender. Regarding the IgA-deficient patients, 47.4% (18 cases) had t-TGA Immunoglobulin A (IgA) ≥ 10 times ULN and a Marsh 3b-c lesion was observed in 68.4% (26 patients). No statistical relation was found between t-TGA IgG levels and the changes of the intestinal mucosa, neither a relation with age, gender, or symptoms. CONCLUSIONS There is a positive correlation between t-TGA IgA levels and the severity of changes of the intestinal mucosa. Such correlation was not found in IgA-deficient patients who had positive t-TGA IgG serology. The results in this group of patients support the European Society for Paediatric Gastroenterology, Hepatology, and Nutrition recommendations about the need of performing a SBB in IgA-deficient individuals despite high t-TGA IgG levels.
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Baykan AR, Cerrah S, Ciftel S, Vural MK, Kasap E. A No-Biopsy Approach for the Diagnosis of Celiac Disease in Adults: Can It Be Real? Cureus 2022; 14:e26521. [PMID: 35795577 PMCID: PMC9250690 DOI: 10.7759/cureus.26521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2022] [Indexed: 11/23/2022] Open
Abstract
Background and objective Pediatric guidelines on the diagnosis of celiac disease (CD) have reported that the positivity of anti-endomysium antibodies in the presence of anti-transglutaminase antibodies (TGA) 10 times higher than normal is sufficient for the diagnosis. In this study, we aimed to evaluate whether this diagnostic process for children can also be applied to adult patients. Materials and methods We retrospectively examined patients aged >18 years who were diagnosed with CD. The results of serological tests and endoscopic biopsy were evaluated. Patients with more than one month of duration between celiac serology and endoscopy, those diagnosed with CD before admission, those on a gluten-free diet, and those with selective IgA deficiency were excluded from the study. Results A total of 269 patients were included in the study. TGA value was significantly higher in patients with villous atrophy (p<0.001) and positively correlated with mucosal damage (r=0.60, p<0.01). Considering the cut-off value of 100 U/mL (>10 ULN) for the TGA antibodies, in line with the criteria regulated by the European Society for Paediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) for the diagnosis of CD, the sensitivity was 71.64%, the specificity was 100%, and the positive predictive value (PPV) was 100%. When the cut-off value was taken as 29.42 U/mL, the sensitivity was 100% and the specificity was 99.5%. For a TGA cut-off value of 52.7 U/mL (5.27 ULN), which determines the presence of partial or complete villous atrophy in the evaluation made considering mucosal damage, the sensitivity was 90%, the specificity was 100%, and the PPV was 100%. Conclusion Based on our findings, TGA titers were highly effective in demonstrating CD-related mucosal damage. This study endorses a biopsy-free strategy in adult patients in line with the ESPGHAN criteria. Local validation of test-specific thresholds will ensure that this approach has a significant impact on adult patients.
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Upper Gastrointestinal Tract Associated Lesions in Patients with Newly Diagnosed Celiac Disease. GASTROENTEROLOGY INSIGHTS 2022. [DOI: 10.3390/gastroent13010009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
(1) Background: Currently available guidelines require upper gastrointestinal (GI) endoscopy with biopsy sampling for adult celiac disease (CD) diagnosis. Based on the pediatric experience, there has been a growing interest if serology-based diagnosis would be possible for adult CD also. Our aim was to analyze the associated upper GI tract lesions in newly diagnosed CD patients, to see if significant associated pathology is detected during index endoscopy, which might impact patient management not related to CD. (2) Methods: We performed a retrospective analysis of newly diagnosed CD cases diagnosed over a period of 7 years (2014–2020). Demographic, clinical, laboratory, endoscopy and histopathology data were collected from the patients’ charts. Diagnosis was set according to ACG Guideline 2013. (3) Results: Altogether 79 patients were recruited for this study purpose, 75.9% female, median age 39 years. All patients had positive CD-specific serology and atrophic mucosal injury in duodenal biopsy samples. Besides villous atrophy, associated endoscopic findings were detected in 42/79 (53.16%) of patients. Most of the gastric lesions were minor endoscopic findings—small sliding hiatal hernias, non-specific chronic gastritis, but we also found two cases of peptic ulcers, one case of metaplastic gastritis, six cases of atrophic gastritis and one subepithelial lesion. Only one patient had changes in the duodenum except CD-related findings—an inflammatory polyp in the duodenal bulb. No malignancies were found. (4) Conclusions: In our cohort, there was a significant number of newly diagnosed CD patients who had associated lesions during the index upper GI endoscopy, but most of them were minor endoscopic findings.
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Losurdo G, Di Leo M, Santamato E, Arena M, Rendina M, Luigiano C, Ierardi E, Di Leo A. Serologic diagnosis of celiac disease: May it be suitable for adults? World J Gastroenterol 2021; 27:7233-7239. [PMID: 34876785 PMCID: PMC8611199 DOI: 10.3748/wjg.v27.i42.7233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/02/2021] [Accepted: 10/25/2021] [Indexed: 02/06/2023] Open
Abstract
The diagnosis of coeliac disease (CD) in adult patients requires the simultaneous assessment of clinical presentation, serology, and typical histological picture of villous atrophy. However, several years ago, the European Society of Pediatric Gastroenterology, Hepatology, and Nutrition guidelines approved new criteria for the diagnosis in children: Biopsy could be avoided when anti-transglutaminase antibody (TGA) values exceed the cut-off of × 10 upper limit of normal (ULN) and anti-endomysium antibodies are positive, independently from value. This “no biopsy” approach is a decisive need for pediatric population, allowing to avoid stressful endoscopic procedures in children, if unnecessary. This approach relies on the correlation existing in children between TGA levels and assessment of mucosal atrophy according to Marsh’s classification. Several lines of evidence have shown that patients with villous atrophy have markedly elevated TGA levels. Therefore, we aim to perform a narrative review on the topic in adults. Despite that some studies confirmed that the × 10 ULN threshold value has a very good diagnostic performance, several lines of evidence in adults suggest that TGA cut off should be different from that of pediatric population for reaching a good correlation with histological picture. In conclusion, the heterogeneity of study reports as well as some conditions, which may hamper the serological diagnosis of CD (such as seronegative CD and non-celiac villous atrophy) and are much more common in adults than in children, could represent a limitation for the “no biopsy” approach to CD diagnosis in patients outside the pediatric age.
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Affiliation(s)
- Giuseppe Losurdo
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Bari 70124, Italy
| | - Milena Di Leo
- Unit of Digestive Endoscopy, San Paolo Hospital, Milan 20090, Italy
| | - Edoardo Santamato
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Bari 70124, Italy
| | - Monica Arena
- Unit of Digestive Endoscopy, San Paolo Hospital, Milan 20090, Italy
| | - Maria Rendina
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Bari 70124, Italy
| | - Carmelo Luigiano
- Unit of Digestive Endoscopy, San Paolo Hospital, Milan 20090, Italy
| | - Enzo Ierardi
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Bari 70124, Italy
| | - Alfredo Di Leo
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University of Bari, Bari 70124, Italy
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Losurdo G, Di Leo M, Santamato E, Giangaspero A, Rendina M, Luigiano C, Ierardi E, Di Leo A. May Antitransglutaminase Levels Predict Severity of Duodenal Lesions in Adults with Celiac Disease? Medicina (B Aires) 2021; 57:medicina57111212. [PMID: 34833430 PMCID: PMC8622174 DOI: 10.3390/medicina57111212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 01/11/2023] Open
Abstract
Background and Objective: Pediatric guidelines on celiac disease (CD) state that children with anti-transglutaminase antibodies (TGAs) >×10 upper limit of normal (ULN) may avoid endoscopy and biopsy. We aimed to evaluate whether these criteria may be suitable for villous atrophy diagnosis in CD adults. Materials and Methods: We retrospectively enrolled patients with CD aged >18 years. TGAs were expressed as xULN. Duodenal lesions were classified as atrophic or non-atrophic according to Marsh-Oberhuber. Fisher’s exact and t-test were used for variables comparison. Receiver operating characteristics (ROC) curve analysis was performed with estimation of area under the curve (AUC), sensitivity, specificity, and positive and negative predictive value (PPV/NPV). Results: One hundred and twenty-one patients were recruited. Sixty patients (49.6%) had TGA >×10 ULN, and 93 (76.8%) had villous atrophy. The cut-off of >×10 ULN had sensitivity = 53.7%, specificity = 64.3%, PPV = 83.3%, and NPV = 29.5% to predict atrophy. Therefore, considering pediatric criteria, in 50 (41.3%) patients, biopsy could have been avoided. Patient subgroup with atrophy had higher TGA levels despite being not significant (37.2 ± 15.3 vs. 8.0 ± 1.3 ULN, p = 0.06). In adults, a slightly better diagnostic performance was obtained using a cut-off of TGA >×6.2 ULN (sensitivity = 57.1%, specificity = 65.6%, and AUC = 0.62). Conclusions: Despite our confirmation that villous atrophy is linked to high TGA levels, CD and atrophy diagnosis based only on serology is not reliable in adults.
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Affiliation(s)
- Giuseppe Losurdo
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy; (E.S.); (A.G.); (M.R.); (E.I.); (A.D.L.)
- Ph.D. Course in Organs and Tissues Transplantation and Cellular Therapies, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy
- Correspondence: ; Tel.: +39-080-559-4430
| | - Milena Di Leo
- Unit of Digestive Endoscopy, San Paolo Hospital, 20142 Milano, Italy; (M.D.L.); (C.L.)
| | - Edoardo Santamato
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy; (E.S.); (A.G.); (M.R.); (E.I.); (A.D.L.)
| | - Antonio Giangaspero
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy; (E.S.); (A.G.); (M.R.); (E.I.); (A.D.L.)
| | - Maria Rendina
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy; (E.S.); (A.G.); (M.R.); (E.I.); (A.D.L.)
| | - Carmelo Luigiano
- Unit of Digestive Endoscopy, San Paolo Hospital, 20142 Milano, Italy; (M.D.L.); (C.L.)
| | - Enzo Ierardi
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy; (E.S.); (A.G.); (M.R.); (E.I.); (A.D.L.)
| | - Alfredo Di Leo
- Section of Gastroenterology, Department of Emergency and Organ Transplantation, University “Aldo Moro” of Bari, 70124 Bari, Italy; (E.S.); (A.G.); (M.R.); (E.I.); (A.D.L.)
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Penny HA, Raju SA, Lau MS, Marks LJS, Baggus EMR, Bai JC, Bassotti G, Bontkes HJ, Carroccio A, Danciu M, Derakhshan MH, Ensari A, Ganji A, Green PHR, Johnson MW, Ishaq S, Lebwohl B, Levene A, Maxim R, Mohaghegh Shalmani H, Rostami-Nejad M, Rowlands D, Spiridon IA, Srivastava A, Volta U, Villanacci V, Wild G, Cross SS, Rostami K, Sanders DS. Accuracy of a no-biopsy approach for the diagnosis of coeliac disease across different adult cohorts. Gut 2021; 70:876-883. [PMID: 33139268 PMCID: PMC8040155 DOI: 10.1136/gutjnl-2020-320913] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 06/29/2020] [Accepted: 07/18/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE We aimed to determine the predictive capacity and diagnostic yield of a 10-fold increase in serum IgA antitissue transglutaminase (tTG) antibody levels for detecting small intestinal injury diagnostic of coeliac disease (CD) in adult patients. DESIGN The study comprised three adult cohorts. Cohort 1: 740 patients assessed in the specialist CD clinic at a UK centre; cohort 2: 532 patients with low suspicion for CD referred for upper GI endoscopy at a UK centre; cohort 3: 145 patients with raised tTG titres from multiple international sites. Marsh 3 histology was used as a reference standard against which we determined the performance characteristics of an IgA tTG titre of ≥10×ULN for a diagnosis of CD. RESULTS Cohort 1: the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for IgA tTG levels of ≥10×ULN at identifying individuals with Marsh 3 lesions were 54.0%, 90.0%, 98.7% and 12.5%, respectively. Cohort 2: the sensitivity, specificity, PPV and NPV for IgA tTG levels of ≥10×ULN at identifying individuals with Marsh 3 lesions were 50.0%, 100.0%, 100.0% and 98.3%, respectively. Cohort 3: the sensitivity, specificity, PPV and NPV for IgA tTG levels of ≥10×ULN at identifying individuals with Marsh 3 lesions were 30.0%, 83.0%, 95.2% and 9.5%, respectively. CONCLUSION Our results show that IgA tTG titres of ≥10×ULN have a strong predictive value at identifying adults with intestinal changes diagnostic of CD. This study supports the use of a no-biopsy approach for the diagnosis of adult CD.
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Affiliation(s)
- Hugo A Penny
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Suneil A Raju
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Michelle S Lau
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Lauren JS Marks
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Elisabeth MR Baggus
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Julio C Bai
- Medicine, Gastroenterology Hospital 'Dr C Bonorino Udaondo', Buenos Aires, Argentina
| | - Gabrio Bassotti
- Gastroenterology & Hepatology Section, Department of Medicine, University of Perugia Medical School, Perugia, Italy
| | - Hetty J Bontkes
- Department Clinical Chemistry, Amsterdam Gastroenterology and Metabolism and Infection and Immunity Institutes, Amsterdam UMC, Amsterdam, The Netherlands
| | - Antonio Carroccio
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Mihai Danciu
- Pathology Department, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | | | - Arzu Ensari
- Department of Pathology, Ankara University Medical School, Ankara, Turkey
| | - Azita Ganji
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Peter H R Green
- Celiac Disease Center, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York, USA
| | - Matt W Johnson
- Gastroenterology, Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK
| | - Sauid Ishaq
- Department of Gastroenterology, Dudley Group NHS Foundation Trust, Birmingham City University, Birmingham, UK
| | - Benjamin Lebwohl
- Celiac Disease Center, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York, USA
| | - Adam Levene
- Gastroenterology, Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK
| | - Roxana Maxim
- Gastroenterology Department, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Hamid Mohaghegh Shalmani
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - David Rowlands
- Department of Gastroenterology, Queen Elizabeth II Hospital, Hertfordshire, UK
| | - Irene A Spiridon
- Pathology Department, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | | | - Umberto Volta
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | - Graeme Wild
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Simon S Cross
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
| | - Kamran Rostami
- Department of Gastroenterology, MidCentral District Health Board, Palmerston North, New Zealand
| | - David S Sanders
- Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
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Ziv-Baran T, Dubov Y, Weinberger R, Guz-Mark A, Shamir R, Assa A. Anti-tissue transglutaminase titers are associated with endoscopic findings and severity of mucosal damage in children with celiac disease. Eur J Pediatr 2021; 180:263-269. [PMID: 32772154 DOI: 10.1007/s00431-020-03770-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/29/2020] [Accepted: 08/03/2020] [Indexed: 10/23/2022]
Abstract
We aimed to assess the correlation between clinical findings, serology, endoscopic findings, and histology in children diagnosed with celiac disease. Medical records of children diagnosed with celiac disease (2010-2017) at the Schneider Children's Hospital were reviewed retrospectively. Correlation between serologic measures anti-tissue transglutaminase (anti-tTG)/anti-endomysial antibodies (EMA) and other variables including mucosal damage, endoscopic findings (scalloping of duodenal folds), and clinical findings (abdominal pain, diarrhea, and anemia) was assessed. Out of 686 patients, 432 patients fulfilled the inclusion criteria (females 262, 61%; median age 6.0; interquartile range 4.0-9.0 years). Distribution of histopathology findings was Marsh IIIa 4%, Marsh IIIb 25%, and Marsh IIIc 71% with 313 (73%) patients having anti-tTG titer of ≥ 10 times the upper normal limit. Anti-tTG titer (but not EMA) positively correlated with Marsh grades, scalloping of duodenal folds and anemia. Anti-tTG ≥ 10 times the upper normal limit was associated with Marsh IIIc changes with an adjusted odds ratio of 4.5 (95% confidence interval, 1.7-12.1). Diarrhea and abdominal pain were not associated with serologic, endoscopic, or histologic markers of disease severity.Conclusion: Anti-tTG titers correlated with macroscopic and microscopic mucosal damage, with anemia but not with diarrhea or abdominal pain in children with celiac disease. What is Known: • Tissue transglutaminase antibody titers were shown to correlate with the degree of mucosal damage in patients with celiac disease. • There is a limited evidence regarding the association of celiac serologies with endoscopic and clinical measures. What is New: • Higher titers of tissue transglutaminase but not anti-endomysial antibodies are associated with more severe histologic and endoscopic damage and with the presence of anemia. • Symptoms do not correlate with the severity of mucosal damage such as scalloping of duodenal folds and histopathology changes according to Marsh classification or with serologic markers.
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Affiliation(s)
- Tomer Ziv-Baran
- Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yulia Dubov
- Immunology Laboratory, Clalit Health Services, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Anat Guz-Mark
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Institute of Gastroenterology, Nutrition and Liver Disease, Schneider Children's Medical Center, 14 Kaplan St., 4920235, Petah Tikva, Israel
| | - Raanan Shamir
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Institute of Gastroenterology, Nutrition and Liver Disease, Schneider Children's Medical Center, 14 Kaplan St., 4920235, Petah Tikva, Israel
| | - Amit Assa
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. .,Institute of Gastroenterology, Nutrition and Liver Disease, Schneider Children's Medical Center, 14 Kaplan St., 4920235, Petah Tikva, Israel.
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15
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ESPGHAN 'biopsy-sparing' guidelines for celiac disease in children with low antitransglutaminase during COVID-19. Eur J Gastroenterol Hepatol 2020; 32:1523-1526. [PMID: 32956181 DOI: 10.1097/meg.0000000000001924] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Recent guidelines for celiac disease have allowed a biopsy-free approach in endomysial antibodies (EMAs) positive children with high antitransglutaminase (TGA-IgA) titer [>10 time upper limit of normal (ULN)]. Esophagogastroduodenoscopy is still necessary for diagnosis in children with lower title. Because elective pediatric endoscopy has been substantially shouted down during coronavirus disease (COVID-19) pandemic, many children remained undiagnosed - and therefore untreated - for a long time. We aimed to analyze the feasibility and accuracy of a biopsy-free approach in suspected celiac disease children with TGA-IgA values <10 ULN to facilitate the diagnostic process by avoiding endoscopy. METHODS In this study cohort, we retrospectively analyzed all biopsy-confirmed diagnosis of celiac disease in our center (between 2014 and 2019). The positive predictive value (PPV) of TGA-IgA titers between 5 and 10 ULN and positive EMA in diagnosing celiac disease were determined. Mucosal atrophy and resolution of symptoms after gluten-free diet (GFD) were considered to confirm initial diagnosis. RESULTS Of 430 celiac disease patients (F: 274; mean age 7.54 years) diagnosed by endoscopy, 84 (F: 46; mean age 8 years) with TGA-IgA between 5 and 10 ULN and positive EMA were identified. The PPV of TGA-IgA between 5 and 10 ULN and positive EMA was 0.93 (95% confidence interval 0.90-0.96). All these children had a symptom resolution and antibodies normalization after GFD. CONCLUSION During the COVID-19 outbreak, a temporarily reduction of the TGA-IgA threshold for biopsy-sparing approach seems feasible in EMA positive children with TGA-IgA between 5 and 10 ULN.
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Rej A, Aziz I, Sanders DS. Coeliac disease and noncoeliac wheat or gluten sensitivity. J Intern Med 2020; 288:537-549. [PMID: 32573000 DOI: 10.1111/joim.13120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/15/2020] [Accepted: 04/21/2020] [Indexed: 12/15/2022]
Abstract
Coeliac disease (CD) and noncoeliac wheat or gluten sensitivity (NCWS/NCGS) are common gluten-related disorders. Both conditions can present with gastrointestinal and extraintestinal manifestations, which can be a challenge for physicians to discern between. Whilst coeliac serology and histological assessment are required for the diagnosis of CD, there are no clear biomarkers for the diagnosis of NCGS. The management of both conditions is with a gluten-free diet (GFD), although the duration, as well as strictness of adherence to a GFD in NCGS, is unclear. Adherence to a GFD in CD can also be challenging, with recent developments of noninvasive assessments, although histological assessment via duodenal biopsies remains the gold standard. The management of refractory coeliac disease remains particularly challenging, often requiring specialist input. Whilst wheat is noted to be a trigger for symptom generation in NCGS, it is unclear which components of wheat are responsible for symptom generation in this group, with further research required to elucidate the pathophysiology.
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Affiliation(s)
- A Rej
- From the, Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - I Aziz
- From the, Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.,Department of Infection, Immunity and Cardiovascular Disease, Academic Unit of Gastroenterology, University of Sheffield, Sheffield, UK
| | - D S Sanders
- From the, Academic Unit of Gastroenterology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.,Department of Infection, Immunity and Cardiovascular Disease, Academic Unit of Gastroenterology, University of Sheffield, Sheffield, UK
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Low prevalence of upper endoscopic gastrointestinal findings despite high frequency of alarm symptoms at the time of diagnosis in adult coeliac disease. Eur J Gastroenterol Hepatol 2020; 32:1447-1451. [PMID: 32675775 DOI: 10.1097/meg.0000000000001829] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Exclusion of organic disorders involving the upper gastrointestinal (UGI) is a mandatory step before considering a biopsy-avoidance diagnostic strategy for adult coeliac disease. We aim to evaluate the prevalence of alarm symptoms and coincidental UGI endoscopic findings at the time of diagnosis of coeliac disease. To develop consensus criteria to identify patients with coeliac disease requiring a gastroscopy and to evaluate whether alarm symptoms prompting gastroscopy were predictive of endoscopic findings. METHODS Presenting symptoms and UGI endoscopic findings at diagnosis of coeliac disease were collected retrospectively in 278 adult patients with coeliac disease diagnosed in Pavia between January 1999 and December 2017. A panel of experts developed criteria to evaluate which clinical scenarios warrant gastroscopy, which was then applied retrospectively to patients diagnosed in Pavia. RESULTS At least one alarm symptom was present in 177/278 patients, 121/278 met our criteria for gastroscopy. Major UGI endoscopic findings included 3 cases of autoimmune atrophic gastritis, 19 oesophagitis and 20 Helicobacter pylori infections. No organic disorders were found. Prevalence of major endoscopic findings did not differ between patients who met our criteria and those who did not. CONCLUSIONS Despite the high prevalence of alarm symptoms at diagnosis, coincident major UGI endoscopic findings are rare in adult coeliac disease. These results may be relevant for future developments in coeliac disease diagnosis in adults.
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Ylönen V, Lindfors K, Repo M, Huhtala H, Fuchs V, Saavalainen P, Musikka A, Laurila K, Kaukinen K, Kurppa K. Non-Biopsy Serology-Based Diagnosis of Celiac Disease in Adults Is Accurate with Different Commercial Kits and Pre-Test Probabilities. Nutrients 2020; 12:nu12092736. [PMID: 32911716 PMCID: PMC7551634 DOI: 10.3390/nu12092736] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/01/2020] [Accepted: 09/04/2020] [Indexed: 02/07/2023] Open
Abstract
Non-biopsy diagnosis of celiac disease is possible in children with anti-transglutaminase 2 antibodies (TGA) > 10× the upper limit of normal (ULN) and positive anti-endomysial antibodies (EMA). Similar criteria have been suggested for adults, but evidence with different TGA assays is scarce. We compared the performance of four TGA tests in the diagnosis of celiac disease in cohorts with diverse pre-test probabilities. Serum samples from 836 adults with either clinical suspicion or family risk of celiac disease were tested with four commercial TGA assays, EmA and celiac disease-associated genetics. The diagnosis was set based on duodenal lesion or, in some cases, using special methods. 137 (57%) patients with clinical suspicion and 85 (14%) of those with family risk had celiac disease. Positive predictive value (PPV) for 10×ULN was 100% in each TGA test. The first non-diagnostic investigations were encountered with ULN 1.0×–5.1× in the clinical cohort and 1.3×–4.9× in the family cohort, respectively. Using the assays’ own cut-offs (1×ULN) the PPVs ranged 84–100%. Serology-based diagnosis of celiac disease was accurate in adults using different commercial kits and pre-test probabilities using 10×ULN. The results also suggest that the ULN threshold for biopsy-omitting approach could be lower.
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Affiliation(s)
- Venla Ylönen
- Celiac Disease Research Centre, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (V.Y.); (K.L.); (M.R.); (V.F.); (A.M.); (K.K.)
| | - Katri Lindfors
- Celiac Disease Research Centre, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (V.Y.); (K.L.); (M.R.); (V.F.); (A.M.); (K.K.)
| | - Marleena Repo
- Celiac Disease Research Centre, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (V.Y.); (K.L.); (M.R.); (V.F.); (A.M.); (K.K.)
- Tampere Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland;
- Department of Pediatrics, Tampere University Hospital, 33520 Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, 33520 Tampere, Finland;
| | - Valma Fuchs
- Celiac Disease Research Centre, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (V.Y.); (K.L.); (M.R.); (V.F.); (A.M.); (K.K.)
| | - Päivi Saavalainen
- Research Programs Unit, Immunobiology, and Haartman Institute, Department of Medical Genetics, University of Helsinki, 00014 Helsinki, Finland;
| | - Alex Musikka
- Celiac Disease Research Centre, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (V.Y.); (K.L.); (M.R.); (V.F.); (A.M.); (K.K.)
| | - Kaija Laurila
- Tampere Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland;
| | - Katri Kaukinen
- Celiac Disease Research Centre, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (V.Y.); (K.L.); (M.R.); (V.F.); (A.M.); (K.K.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland
| | - Kalle Kurppa
- Tampere Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland;
- Department of Pediatrics, Tampere University Hospital, 33520 Tampere, Finland
- The University Consortium of Seinäjoki, 66320 Seinäjoki, Finland
- Department of Pediatrics, Seinäjoki Central Hospital, 66320 Seinäjoki, Finland
- Correspondence: ; Tel.: +358-50-318-6255
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Abstract
OBJECTIVES The European Society for Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) 2012 guidelines, enabled for the first time, a nonbiopsy approach in the diagnosis of celiac disease (CD). We aimed to prospectively assess 4 tissue-transglutaminase (tTg) IgA assays of 4 random-access analyzers and examine their accuracy in diagnosing CD without a biopsy. METHODS We enrolled 186 consecutive children referred to upper endoscopy and intestinal biopsy. One group included 109 patients with positive tTg that was referred for suspected CD. Another group included 77 patients with negative tTg referred because of other indications. All participants had a blood sample taken at the time of endoscopy. Samples were tested with 4 tTg IgA assays on automated analyzers and 1 Elisa kit. All intestinal biopsies were evaluated by a local pathologist, a central pathologist, and a CD expert blinded to each other. CD was diagnosed when full agreement was reached. Analytical performance of the assays included precision with controls and samples, lot to lot variation, and carryover. RESULTS In our cohort, all tested tTg IgA-automated assays showed sensitivities above 98% and specificities above 99%. ROC analysis demonstrated AUC (area under the curve) >0.99 for all 4 analyzers. The positive-predictive values (PPV) were all >0.99 and negative-predictive values (NPV) were >0.97. The Elisa kit had sensitivity of 95%, specificity of 96%, AUC of 0.96, PPV of 0.98 and NPV of 0.93. CONCLUSION CD can be accurately diagnosed without biopsy based on tTg IgA levels at least 10 times the ULN using the 4 high-volume random-access analyzers used in our study.
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Penny HA, Raju SA, Sanders DS. Progress in the serology-based diagnosis and management of adult celiac disease. Expert Rev Gastroenterol Hepatol 2020; 14:147-154. [PMID: 32011187 DOI: 10.1080/17474124.2020.1725472] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Introduction: This article provides a comprehensive overview of the development and application of serological tests used routinely in clinical practice for the diagnosis and management of adult celiac disease.Areas covered: We summarize existing scientific literature related to anti-endomyseal, anti-tissue transglutaminase, and anti-deamidated gliadin peptide antibodies and detail the current and potential future applications of these tests in celiac disease.Expert commentary: Current serological tests in celiac disease have some of the best performance characteristics among disease-specific tests. However, in adult celiac disease, current diagnostic algorithms still rely on duodenal biopsies to confirm the diagnosis. A 'biopsy avoidance strategy' has been implemented in pediatric celiac disease. Future high-quality studies will help inform on whether this approach can be implemented into adult gastroenterology services. It is envisaged that the next 5 years will see an increasing reliance on serology in the diagnosis of adult celiac disease.
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Affiliation(s)
- Hugo A Penny
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.,Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
| | - Suneil A Raju
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - David S Sanders
- Academic Unit of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
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21
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Ho SSC, Keenan JI, Day AS. The Role of Gastrointestinal-Related Fatty Acid-Binding Proteins as Biomarkers in Gastrointestinal Diseases. Dig Dis Sci 2020; 65:376-390. [PMID: 31529416 DOI: 10.1007/s10620-019-05841-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/10/2019] [Indexed: 12/14/2022]
Abstract
The fatty acid-binding proteins play a major role in intracellular transportation of long-chain fatty acids. Nine fatty acid-binding proteins have been identified, with each having individual tissue-specific functions in addition to regulation of fatty acids. This review focuses on the three fatty acid-binding proteins found in the gastrointestinal tract and discusses their role as diagnostic or disease monitoring markers in neonatal necrotizing enterocolitis, acute mesenteric ischemia, celiac disease, and inflammatory bowel disease. Of these three fatty acid-binding proteins, intestinal fatty acid-binding protein is of the most interest due to its exclusive expression in the gastrointestinal tract. The elevation of intestinal fatty acid-binding protein in blood and urine reflects enterocyte damage, regardless of the underlying cause. The short half-life of intestinal fatty acid-binding protein also means it is a relatively sensitive marker. In contrast, there is currently less evidence to support liver fatty acid-binding protein and ileal bile acid-binding protein as sensitive biomarkers in these conditions. More extensive studies with specific endpoints are required to validate the roles of these fatty acid-binding proteins in gastrointestinal diseases.
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Affiliation(s)
- Shaun S C Ho
- Department of Paediatrics, University of Otago Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand
| | - Jacqueline I Keenan
- Department of Surgery, University of Otago Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand
| | - Andrew S Day
- Department of Paediatrics, University of Otago Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand.
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Diagnosing Celiac Disease: Towards Wide-Scale Screening and Serology-Based Criteria? Gastroenterol Res Pract 2019; 2019:2916024. [PMID: 31467522 PMCID: PMC6701393 DOI: 10.1155/2019/2916024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/16/2019] [Indexed: 12/12/2022] Open
Abstract
Celiac disease is one of the most common food-related chronic disorders in children. Unfortunately, this multifaceted disease is challenging to recognize and remains markedly underdiagnosed. Screening of either known at-risk groups or even the whole population could increase the suboptimal diagnostic yield substantially. Many recent guidelines recommend screening of at least selected risk groups, but more wide-scale screening remains controversial. The increasing prevalence of celiac disease and the development of autoantibody assays have also led to a gradual shift in the diagnostics towards less invasive serology-based criteria in a subgroup of symptomatic children. The main open questions concern whether these criteria are applicable to all countries and clinical settings, as well as to adult patients. On the other hand, widening screening and the mistaken practice of initiating a gluten-free diet before the appropriate exclusion of celiac disease increase the number of borderline seropositive cases, which may also challenge the classical histopathological diagnostics. Sophisticated diagnostic methods and a deeper understanding of the natural history of early developing celiac disease may prove useful in these circumstances.
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Inadvertent and minimal gluten intake has a negligible role in the onset of symptoms in patients with coeliac disease on a gluten-free diet. Br J Nutr 2019; 121:576-581. [DOI: 10.1017/s0007114518003616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractAlthough the quantity of gluten that a well-instructed coeliac patient can involuntarily ingest is <10 mg of gluten/d which cannot induce significant villous damage, coeliac patients often attribute the origin of symptoms to the involuntary ingestion of trace quantities of gluten, either certain or hypothetical. Our aim was to evaluate whether the occurrence of symptoms in coeliac patients who histologically responded to a strict gluten-free diet was related to the involuntary consumption of minimal quantities of gluten. A case–control study to assess the association between gluten exposure and the occurrence of symptoms was designed. Between January 2017 and May 2018, coeliac patients attending our outpatient clinic were interviewed to detect the presence of symptoms. Based on a specifically designed form, patients were also divided into different risk groups of gluten exposure. A total of ninety-five coeliac patients on a strict gluten-free diet and with known histological recovery were enroled. Of them, fifty-two of them reported symptoms and they were enroled as cases; the remaining forty-three patients denied symptoms and were enroled as controls. Although this was not statistically significant, gluten exposure was more frequent in controls (Fisher’s exact test, P=0·07). Our results show no relationship between exposure to minimal quantities of gluten and onset of symptoms in coeliac patients. Symptoms are more frequent in patients who have no risk of gluten exposure. It is possible that the presence of these symptoms leads the patients to avoid situations that may place them at risk of gluten exposure.
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24
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Fuchs V, Kurppa K, Huhtala H, Laurila K, Mäki M, Collin P, Salmi T, Luostarinen L, Saavalainen P, Kaukinen K. Serology-based criteria for adult coeliac disease have excellent accuracy across the range of pre-test probabilities. Aliment Pharmacol Ther 2019; 49:277-284. [PMID: 30592070 DOI: 10.1111/apt.15109] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/25/2018] [Accepted: 12/02/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND The revised paediatric criteria for coeliac disease allow omission of duodenal biopsies in symptomatic children who have specific serology and coeliac disease-associated genetics. It remains unclear whether this approach is also applicable for adults with various clinical presentations. AIM To evaluate the accuracy of serology-based criteria in adults with variable pre-test probabilities for coeliac disease. METHODS Three study cohorts comprised adults with high-risk clinical coeliac disease suspicion (n = 421), moderate-risk family members of coeliac disease patients (n = 2357), and low-risk subjects from the general population (n = 2722). Serological and clinical data were collected, and "triple criteria" for coeliac disease comprised transglutaminase 2 antibodies >10× the upper limit of normal, positive endomysium antibodies, and appropriate genetics without requirement of symptoms. The diagnosis was based on intestinal biopsy. RESULTS The diagnosis of coeliac disease was established in 274 subjects. Of these, 59 high-risk subjects, 17 moderate-risk subjects, and 14 low-risk subjects fulfilled the "triple criteria". All had histologically proven coeliac disease, giving the criteria a positive predictive value of 100%. Altogether, 90 (33%) of all 274 newly diagnosed patients could have avoided biopsy, including 37% among high-risk, 20% among moderate-risk, and 48% among low-risk patients. No histological findings other than coeliac disease were found in the biopsies of "triple positive" subjects. CONCLUSIONS Coeliac disease can reliably and safely be diagnosed without biopsy in adults fulfilling the "triple criteria" regardless of the pre-test probability. Revised criteria would enable the number of endoscopies to be reduced by one-third.
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Affiliation(s)
- Valma Fuchs
- Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Kalle Kurppa
- Tampere Center for Child Health Research, University of Tampere, and Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Heini Huhtala
- Tampere Faculty of Social Sciences, University of Tampere, Tampere, Finland
| | - Kaija Laurila
- Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Markku Mäki
- Tampere Center for Child Health Research, University of Tampere, and Department of Paediatrics, Tampere University Hospital, Tampere, Finland
| | - Pekka Collin
- Department of Gastroenterology and Alimentary Tract Surgery, Tampere University Hospital, Tampere, Finland
| | - Teea Salmi
- Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Dermatology, Tampere University Hospital, Tampere, Finland
| | - Liisa Luostarinen
- Department of Neurology, Päijät-Häme Central Hospital, Lahti, Finland
| | - Päivi Saavalainen
- Research Programs Unit, Immunobiology, and Haartman Institute, Department of Medical Genetics, University of Helsinki, Helsinki, Finland
| | - Katri Kaukinen
- Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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Gülseren YD, Adiloğlu AK, Yücel M, Dağ Z, Eyerci N, Berkem R, Filik L, Çaydere M. Comparison of non-invasive tests with invasive tests in the diagnosis of celiac disease. J Clin Lab Anal 2018; 33:e22722. [PMID: 30461063 DOI: 10.1002/jcla.22722] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/19/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND/AIMS Today, invasive diagnostic tests are necessary for definite diagnosis of adult celiac disease (CD). However, in selected children patients, the need for invasive tests is ceased. In this study, we evaluated adult patients according to the ESPGHAN (European Pediatric Gastroenterology Hepatology and Nutrition Society) criteria. METHODS Thirty-nine patients (aged 17-66) with symptoms of CD were included. Serum samples were tested for total IgA, tTG-IgA (antitissue transglutaminase), tTG-IgG, DGP-IgA (antideamidated gliadin peptide), DGP-IgG, and EMA (endomysial antibodies). HLA-DQ typing was studied with PCR-SSP (sequence-specific primers) method. Biopsy samples were evaluated according to Marsh scoring. RESULTS In CD patients, 71.4% (15/21) of the patients were diagnosed without biopsy according to the EPSGHAN criteria but when ESPGHAN's IgA tTG threshold value for children was taken into consideration (>200 IU/mL), the sensitivity decreased to 81%. Celiac disease diagnosed and control groups were compared in terms of HLA tissue types. DQ2.5 homozygous or DQ2.5/DQ2.2 was significantly higher in CD group, and DQ2- or DQ8-negative HLA tissue type was significantly higher in control group. CONCLUSION When serological tests, HLA typing, and clinical symptoms are all in favor of CD, biopsy may not be performed in selected adult CD patients.
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Affiliation(s)
- Yasemin Derya Gülseren
- Department of Microbiology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
| | - Ali Kudret Adiloğlu
- Department of Microbiology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
| | - Mihriban Yücel
- Department of Microbiology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
| | - Zuhal Dağ
- Department of Gastroenterology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
| | - Nilnur Eyerci
- Department of Tissue Typing Laboratory, Ankara Dışkapı Yıldırım Beyazıt Training and Research Hospital, Health Sciences University, Etlik, Ankara, Turkey
| | - Rukiye Berkem
- Department of Microbiology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
| | - Levent Filik
- Department of Gastroenterology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
| | - Muzaffer Çaydere
- Department of Pathology, Ankara Training and Research Hospital, Health Sciences University, Altındağ, Ankara, Turkey
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Abstract
Coeliac disease is increasingly recognized as a global problem in both children and adults. Traditionally, the findings of characteristic changes of villous atrophy and increased intraepithelial lymphocytosis identified in duodenal biopsy samples taken during upper gastrointestinal endoscopy have been required for diagnosis. Although biopsies remain advised as necessary for the diagnosis of coeliac disease in adults, European guidelines for children provide a biopsy-sparing diagnostic pathway. This approach has been enabled by the high specificity and sensitivity of serological testing. However, these guidelines are not universally accepted. In this Perspective, we discuss the pros and cons of a biopsy-avoiding pathway for the diagnosis of coeliac disease, especially in this current era of the call for more biopsies, even from the duodenal bulb, in the diagnosis of coeliac disease. In addition, a contrast between paediatric and adult guidelines is presented.
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27
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Food Allergy and Intolerance. Integr Med (Encinitas) 2018. [DOI: 10.1016/b978-0-323-35868-2.00031-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Virta LJ, Saarinen MM, Kolho KL. Declining trend in the incidence of biopsy-verified coeliac disease in the adult population of Finland, 2005-2014. Aliment Pharmacol Ther 2017; 46:1085-1093. [PMID: 28940562 DOI: 10.1111/apt.14335] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/01/2017] [Accepted: 08/29/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND The frequency of coeliac disease (CD) has been on the rise over the past decades, especially in Western Europe, but current trends are unclear. AIM To research the recent temporal changes in the incidence of adult, biopsy-verified coeliac disease and dermatitis herpetiformis (DH) in Finland, a country with a high frequency of coeliac disease. METHODS All coeliac disease and DH cases diagnosed at age 20-79 years during 2005-2014 were retrieved from a nationwide database documenting all applicants for monthly compensation to cover the extra cost of maintaining a gluten-free diet. This benefit is granted on the basis of histology, not socioeconomic status. Temporal trends in the annual incidences were estimated using Poisson regression analyses. RESULTS The total incidence of coeliac disease decreased from 33/100 000 during the years 2005-2006 to 29/100 000 during 2013-2014. The mean annual incidence of coeliac disease was nearly twice as high among women as among men, 42 vs 22 per 100 000, respectively. For middle- and old-aged women, the average rate of decrease in incidence was 4.8% (95% CI 3.9-5.7) per year and for men 3.0% (1.8-4.1) (P for linear trend <.001, for both). Similarly, the annual incidence of DH declined. For young adults, the rate of change remained low and nonsignificant throughout the period 2005-2014. CONCLUSIONS Although the awareness of coeliac disease has increased during the past decades, the incidence of biopsy-verified diagnoses is not increasing, which suggests that exposure to yet unidentified triggering factors for coeliac disease has plateaued among the Finnish adult population.
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Affiliation(s)
- L J Virta
- Research Department, The Social Insurance Institution of Finland, Turku, Finland
| | - M M Saarinen
- Departments of Public Health and Child Neurology, University of Turku and Turku University Hospital, Turku, Finland
| | - K-L Kolho
- Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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29
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Fang H, King KS, Larson JJ, Snyder MR, Wu TT, Gandhi MJ, Murray JA. Undetectable negative tissue transglutaminase IgA antibodies predict mucosal healing in treated coeliac disease patients. Aliment Pharmacol Ther 2017; 46:681-687. [PMID: 28782118 DOI: 10.1111/apt.14250] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/30/2017] [Accepted: 07/12/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Tissue transglutaminase (tTG) immunoglobulin A (IgA) testing is a sensitive adjunct to the diagnosis of coeliac disease. The threshold for positivity was developed for diagnosis, with negative results reported as below the reference value (<4 U/mL). AIM To investigate if an undetectable (tTG IgA<1.2 U/mL) is more predictive of healing compared to patients with negative but detectable serology (1.2-3.9 U/mL). METHODS We performed a retrospective study of 402 treated coeliac disease patients seen at the Mayo Clinic with negative tTG IgA values drawn within 1 month of duodenal biopsy between January 2009 and December 2015. The Corazza-Villanacci score was used to assess mucosal healing. The presence of gastrointestinal symptoms was also collected. Logistic regression was used to assess the relationship of clinical variables with a normal biopsy. RESULTS Patients with undetectable titres more frequently had normal duodenal histology compared to patients with detectable tTG IgA levels (117/240 vs. 53/162; OR=1.96; 1.292, 2.961). Asymptomatic patients more frequently had normal duodenum as compared to symptomatic patients (88/163 vs. 82/239; OR=2.25; CI: 1.494, 3.377). Patients with undetectable serology and on a gluten-free diet for ≥2 years were more likely to have no villous atrophy compared to patients with detectable serology (148/192 vs. 55/88; OR=2.02; CI: 1.17, 3.49). CONCLUSION In subjects recovering from coeliac disease with negative tTG IgA serology, an undetectable titre is associated with normal histology on follow-up biopsy.
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Affiliation(s)
- H Fang
- Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - K S King
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - J J Larson
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - M R Snyder
- Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, MN, USA
| | - T T Wu
- Division of Anatomic Pathology, Mayo Clinic, Rochester, MN, USA
| | - M J Gandhi
- Division of Transfusion Medicine, Mayo Clinic, Rochester, MN, USA
| | - J A Murray
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
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30
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Werkstetter KJ, Korponay-Szabó IR, Popp A, Villanacci V, Salemme M, Heilig G, Lillevang ST, Mearin ML, Ribes-Koninckx C, Thomas A, Troncone R, Filipiak B, Mäki M, Gyimesi J, Najafi M, Dolinšek J, Dydensborg Sander S, Auricchio R, Papadopoulou A, Vécsei A, Szitanyi P, Donat E, Nenna R, Alliet P, Penagini F, Garnier-Lengliné H, Castillejo G, Kurppa K, Shamir R, Hauer AC, Smets F, Corujeira S, van Winckel M, Buderus S, Chong S, Husby S, Koletzko S. Accuracy in Diagnosis of Celiac Disease Without Biopsies in Clinical Practice. Gastroenterology 2017. [PMID: 28624578 DOI: 10.1053/j.gastro.2017.06.002] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS The guidelines of the European Society of Pediatric Gastroenterology, Hepatology, and Nutrition allow for diagnosis of celiac disease without biopsies in children with symptoms and levels of immunoglobulin A against tissue-transglutaminase (TGA-IgA) 10-fold or more the upper limit of normal (ULN), confirmed by detection of endomysium antibodies (EMA) and positivity for HLA-DQ2/DQ8. We performed a large, international prospective study to validate this approach. METHODS We collected data from consecutive pediatric patients (18 years or younger) on a gluten-containing diet who tested positive for TGA-IgA from November 2011 through May 2014, seen at 33 pediatric gastroenterology units in 21 countries. Local centers recorded symptoms; measurements of total IgA, TGA, and EMA; and histopathology findings from duodenal biopsies. Children were considered to have malabsorption if they had chronic diarrhea, weight loss (or insufficient gain), growth failure, or anemia. We directly compared central findings from 16 antibody tests (8 for TGA-IgA, 1 for TGA-IgG, 6 for IgG against deamidated gliadin peptides, and 1 for EMA, from 5 different manufacturers), 2 HLA-DQ2/DQ8 tests from 2 manufacturers, and histopathology findings from the reference pathologist. Final diagnoses were based on local and central results. If all local and central results were concordant for celiac disease, cases were classified as proven celiac disease. Patients with only a low level of TGA-IgA (threefold or less the ULN) but no other results indicating celiac disease were classified as no celiac disease. Central histo-morphometry analyses were performed on all other biopsies and cases were carefully reviewed in a blinded manner. Inconclusive cases were regarded as not having celiac disease for calculation of diagnostic accuracy. The primary aim was to determine whether the nonbiopsy approach identifies children with celiac disease with a positive predictive value (PPV) above 99% in clinical practice. Secondary aims included comparing performance of different serological tests and to determine whether the suggested criteria can be simplified. RESULTS Of 803 children recruited for the study, 96 were excluded due to incomplete data, low level of IgA, or poor-quality biopsies. In the remaining 707 children (65.1% girls; median age, 6.2 years), 645 were diagnosed with celiac disease, 46 were found not to have celiac disease, and 16 had inconclusive results. Findings from local laboratories of TGA-IgA 10-fold or more the ULN, a positive result from the test for EMA, and any symptom identified children with celiac disease (n = 399) with a PPV of 99.75 (95% confidence interval [CI], 98.61-99.99); the PPV was 100.00 (95% CI, 98.68-100.00) when only malabsorption symptoms were used instead of any symptom (n = 278). Inclusion of HLA analyses did not increase accuracy. Findings from central laboratories differed greatly for patients with lower levels of antibodies, but when levels of TGA-IgA were 10-fold or more the ULN, PPVs ranged from 99.63 (95% CI, 98.67-99.96) to 100.00 (95% CI, 99.23-100.00). CONCLUSIONS Children can be accurately diagnosed with celiac disease without biopsy analysis. Diagnosis based on level of TGA-IgA 10-fold or more the ULN, a positive result from the EMA tests in a second blood sample, and the presence of at least 1 symptom could avoid risks and costs of endoscopy for more than half the children with celiac disease worldwide. HLA analysis is not required for accurate diagnosis. Clinical Trial Registration no: DRKS00003555.
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Affiliation(s)
- Katharina Julia Werkstetter
- Dr. von Hauner Children's Hospital, Department of Pediatrics, University Hospital, LMU Munich, Munich, Germany
| | - Ilma Rita Korponay-Szabó
- Celiac Disease Center Heim Pál Children's Hospital, Budapest and Department of Pediatrics, University of Debrecen, Debrecen, Hungary; Center for Child Health Research, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Alina Popp
- Center for Child Health Research, University of Tampere and Tampere University Hospital, Tampere, Finland; University of Medicine and Pharmacy "Carol Davila" and National Institute for Mother and Child Health "Alessandrescu-Rusescu," Bucharest, Romania
| | | | | | - Gabriele Heilig
- Dr. von Hauner Children's Hospital, Department of Pediatrics, University Hospital, LMU Munich, Munich, Germany
| | | | - Maria Luisa Mearin
- Department of Pediatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Carmen Ribes-Koninckx
- Department of Pediatric Gastroenterology and Hepatology, La Fe University Hospital, Valencia, Spain
| | - Adrian Thomas
- Department of Pediatric Gastroenterology, Royal Manchester Children's Hospital, Manchester, United Kingdom
| | - Riccardo Troncone
- Department of Translational Medical Sciences & European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
| | - Birgit Filipiak
- Dr. von Hauner Children's Hospital, Department of Pediatrics, University Hospital, LMU Munich, Munich, Germany
| | - Markku Mäki
- Center for Child Health Research, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Judit Gyimesi
- Celiac Disease Center Heim Pál Children's Hospital, Budapest and Department of Pediatrics, University of Debrecen, Debrecen, Hungary
| | - Mehri Najafi
- Department of Pediatric Gastroenterology & Hepatology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Jernej Dolinšek
- Department of Pediatrics, University Medical Center (UMC), Maribor, Slovenia
| | | | - Renata Auricchio
- Department of Translational Medical Sciences & European Laboratory for the Investigation of Food-Induced Diseases, University Federico II, Naples, Italy
| | - Alexandra Papadopoulou
- Division of Gastroenterology, Hepatology and Nutrition, First Department of Pediatrics, Children's Hospitals "Agia Sophia," University of Athens, Athens, Greece
| | - Andreas Vécsei
- Gastroenterology Outpatient Clinic, St. Anna Children's Hospital, Medical University Vienna, Vienna, Austria
| | - Peter Szitanyi
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine and General Teaching Hospital, Charles University, Prague, Czech Republic
| | - Ester Donat
- Department of Pediatric Gastroenterology and Hepatology, La Fe University Hospital, Valencia, Spain
| | - Rafaella Nenna
- Department of Pediatrics, Sapienza University of Rome, Rome, Italy
| | | | - Francesca Penagini
- Department of Pediatric Gastroenterology, Addenbrookes Hospital, Cambridge, United Kingdom
| | - Hélène Garnier-Lengliné
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Hôpital Necker-Enfants Malades, Paris, France
| | - Gemma Castillejo
- Department of Pediatric Gastroenterology and Nutrition, Hospital Universitari Sant Joan, Reus, Spain
| | - Kalle Kurppa
- Center for Child Health Research, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Raanan Shamir
- Institute of Gastroenterology, Nutrition and Liver Diseases, Schneider Children's Medical Center of Israel, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - Françoise Smets
- Université Catholique de Louvain, IREC, PEDI, Cliniques universitaires Saint Luc, Brussels, Belgium
| | - Susana Corujeira
- Department of Pediatric Gastroenterology, Hospital S. João, Porto, Portugal
| | - Myriam van Winckel
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Ghent University Hospital, Ghent, Belgium
| | - Stefan Buderus
- Department of Pediatrics, St. Marien Hospital, Bonn, Germany
| | - Sonny Chong
- Queen Mary's Hospital for Children, Carshalton, United Kingdom
| | - Steffen Husby
- Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Sibylle Koletzko
- Dr. von Hauner Children's Hospital, Department of Pediatrics, University Hospital, LMU Munich, Munich, Germany.
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Efthymakis K, Serio M, Milano A, Laterza F, Bonitatibus A, Di Nicola M, Neri M. Application of the Biopsy-Sparing ESPGHAN Guidelines for Celiac Disease Diagnosis in Adults: A Real-Life Study. Dig Dis Sci 2017; 62:2433-2439. [PMID: 28717844 DOI: 10.1007/s10620-017-4672-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/04/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Current adult celiac disease diagnosis requires histological confirmation. However, pediatric guidelines have proposed biopsy-sparing algorithms. AIMS To explore the applicability of the ESPGHAN criteria and assess the accuracy of serology in predicting disease in adults. METHODS We evaluated 234 consecutive adults showing elevated anti-tTG titers, EMA-positivity, and genetic susceptibility. Patients underwent upper endoscopy with duodenal biopsy. We determined optimal anti-tTG cutoff levels using ROC curves. RESULTS Mean anti-tTG levels were 71.1 ± 66.5 U/ml; mean normalized levels were 14.8 ± 14.1 × ULN (mean ± SD). Partial/total villous atrophy was present in 36%/55% of cases, respectively. Anti-tTG levels correlated with histology (r s = 0.397, p < 0.001). AUC was similar before and after normalization (0.803 vs 0.807). Applying the ESPGHAN criterion (≥10 × ULN), we calculated a 97.66% PPV. ROC curve analysis showed an optimal cutoff of ≥16 × ULN, with a PPV of 98.86%. Eleven different assays were used for anti-tTG titer determination: Two were prevalent, labeled A (n = 141) and B (n = 59). They performed differently regarding disease prediction (AUC = 0.689 vs 0.925, p < 0.01), showing distinct optimal cutoff values (14.3 × ULN vs 3.7 × ULN), even after standardization (-0.14 vs -1.2). CONCLUSION In adult symptomatic patients showing EMA-positivity and genetic susceptibility, anti-tTG titers correlated with histology. ESPGHAN criteria performed similarly to previous studies. However, a calculated 16 × ULN cutoff showed an improved PPV. Among prevalent assays, PPV peaked differently both after normalization and standardization, indicating intrinsic differences in performance, thus preventing uniform prediction of disease in a real-life setting. Assay-specific optimal cutoffs seem possible, but would complicate diagnostic criteria. However, biopsy-sparing strategies in adults could prove useful in challenging patients.
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Affiliation(s)
- Konstantinos Efthymakis
- Department of Medicine and Ageing Sciences and Center for Excellence On Ageing and Translational Medicine (CeSI-MeT), "G. D'Annunzio" University and Foundation, Chieti, Italy
| | - Mariaelena Serio
- Department of Medicine and Ageing Sciences and Center for Excellence On Ageing and Translational Medicine (CeSI-MeT), "G. D'Annunzio" University and Foundation, Chieti, Italy
| | - Angelo Milano
- Department of Medicine and Ageing Sciences and Center for Excellence On Ageing and Translational Medicine (CeSI-MeT), "G. D'Annunzio" University and Foundation, Chieti, Italy
| | - Francesco Laterza
- Department of Medicine and Ageing Sciences and Center for Excellence On Ageing and Translational Medicine (CeSI-MeT), "G. D'Annunzio" University and Foundation, Chieti, Italy
| | - Antonella Bonitatibus
- Department of Medicine and Ageing Sciences and Center for Excellence On Ageing and Translational Medicine (CeSI-MeT), "G. D'Annunzio" University and Foundation, Chieti, Italy
| | - Marta Di Nicola
- Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University and Foundation, Chieti, Italy
| | - Matteo Neri
- Department of Medicine and Ageing Sciences and Center for Excellence On Ageing and Translational Medicine (CeSI-MeT), "G. D'Annunzio" University and Foundation, Chieti, Italy.
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Abstract
Celiac disease has advanced from a medical rarity to a highly prevalent disorder. Patients with the disease show varying degrees of chronic inflammation within the small intestine due to an aberrant immune response to the digestion of gliadin found in wheat. As a result, cytokines and antibodies are produced in celiac patients that can be used as specific biomarkers for developing diagnostic tests. This review paper describes celiac disease in terms of its etiological cause, pathological effects, current diagnostic tests based on mucosal biopsy, and the genetic basis for the disease. In addition, it discusses the use of gliadin-induced cytokines, antibodies and autoantibodies as a diagnostic tool for celiac disease. Despite good initial results in terms of sensitivity and specificity, when these immunological tests were used on a large scale, even in combination with genetic testing, the results showed lower predictive value. This review addresses that issue and ends with an outlook on future work required to develop diagnostic tests with greater accuracy in predicting celiac disease in the general public, thus avoiding the need for endoscopy and mucosal biopsy.
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Affiliation(s)
- Anantdeep Kaur
- Institute for Biomedical Materials and Devices (IBMD), The University of Technology Sydney, Broadway, PO Box 123, Sydney, NSW, 2007, Australia
| | - Olga Shimoni
- Institute for Biomedical Materials and Devices (IBMD), The University of Technology Sydney, Broadway, PO Box 123, Sydney, NSW, 2007, Australia.
| | - Michael Wallach
- School of Life Sciences, The University of Technology Sydney, Broadway, PO Box 123, Sydney, NSW, 2007, Australia
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Abstract
The incidence of celiac disease (CD) has increased over the last half-century, resulting in rising interest in identifying risk factors for CD. The necessity of duodenal biopsies in the diagnosis of CD has recently been challenged. Areas covered: This review covers the recent literature regarding the role of infant feeding practices, including breastfeeding and timing of gluten introduction, and the microbiota in the development of CD. Additionally, the application of the European Society for Pediatric Gastroenterology, Hepatology, and Nutrition guidelines for a non-biopsy approach to the diagnosis of CD is reviewed. Expert commentary: Recent investigations have not revealed any significant effect of breastfeeding or timing of gluten introduction on the risk of CD in at-risk populations. There are alterations in the microbiota of CD patients. However, the role of the microbiome and whether its manipulation has a clinical effect are unknown. Preliminary data suggests a non-biopsy approach to diagnosis of pediatric CD can be applied to several populations, although additional studies are needed. Prospective investigations are underway to examine the interplay of infant feeding practices and the microbiome and to identify particular CD-specific biomarkers that may aid in the diagnosis and ultimately prevention of CD.
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Affiliation(s)
- Grace J Lee
- a Division of Pediatric Gastroenterology, Department of Pediatrics and Communicable Diseases , C.S. Mott Children's Hospital, University of Michigan , Ann Arbor , MI , USA
| | - John Y Kao
- b Division of Gastroenterology, Department of Internal Medicine , University of Michigan , Ann Arbor , MI , USA
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Abstract
OBJECTIVES Growing evidence supports the view that the diagnosis of coeliac disease (CD) can be made by serological tests alone, although this approach is still not widely accepted. We previously showed in retrospective and prospective studies that in adults an IgA-tissue transglutaminase antibody cut-off can be defined above which the positive predictive value for CD is 100%. Following a change in the analytical method for measuring the antibody, our objectives were to re-examine this finding in a larger series of adults to ascertain whether a diagnosis of CD can be reliably made in a proportion of patients without the need for small bowel biopsy and to re-evaluate the diagnostic guidelines used in our centre. PATIENTS AND METHODS A retrospective analysis was done in an unselected series of 270 adult patients who had small bowel biopsies and serum IgA-tissue transglutaminase antibody levels measured from 2009 to 2014. RESULTS At an IgA-tissue transglutaminase antibody cut-off greater than 45 U/ml (>8×upper limit of normal+2SDs) the positive predictive value for CD in this cohort was 100%; 40% of cases were above this cut-off. CONCLUSION We have verified that a diagnosis of CD can be reliably made in a high proportion of adults based on serology alone using the IgA-tissue transglutaminase antibody method specified. These results add to the body of evidence that small bowel biopsy should no longer be considered mandatory for the diagnosis of CD. On the basis of these results the diagnostic guidelines in our centre have been modified.
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Differentiating Between Lactose Intolerance, Celiac Disease, and Irritable Bowel Syndrome-Diarrhea. J Nurse Pract 2017. [DOI: 10.1016/j.nurpra.2017.01.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Ganji A, Esmaeilzadeh A, Bahari A, Ghafarzadegan K, Afzal Aghayee M, Mosanen Mozafari H, Hayatbakhsh A, Ghavami Ghanbarabadi V, Ravarian B, Rahimi L. Correlation Between Cut-off Level of Tissue Transglutaminase Antibody and Marsh Classification. Middle East J Dig Dis 2016; 8:318-322. [PMID: 27957296 PMCID: PMC5145300 DOI: 10.15171/mejdd.2016.42] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Duodenal biopsy is required for diagnosis of celiac disease in adults, although some studies have suggested adequate accuracy of serology alone. Objective: We aimed to assess the correlation between anti-tissue transglutaminase (tTG) titer and pathological findings and to define the specific level of tTG for predicting celiac disease in adults without the need for biopsy sampling. METHODS This descriptive study was done on 299 participants. The tTG titer and pathological findings of duodenal biopsy samples were used for this study. Analysis of Receiver operating characteristic (ROC) curve was used to find a cut-off point of anti-tTG antibody for mucosal atrophy. RESULTS Mean tTG titers was significantly higher in patients graded as Marsh III≥ 3 (p=0.023). ROC curve analysis showed 89.1% sensitivity for cut-off point≥76.5 IU/mL of anti-tTG. For Marsh≥ II, specificity was 28% and positive predictive value was 91%.CON CLUSION There is a linear correlation between increasing tTG level and Marsh I to III. Specificity of tTG titer more than 200 was 100% for Marsh >2.
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Affiliation(s)
- Azita Ganji
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Esmaeilzadeh
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Bahari
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Mehdi Afzal Aghayee
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Homan Mosanen Mozafari
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdolrasol Hayatbakhsh
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Ghavami Ghanbarabadi
- PHD candidate in Biostatistics, Department of Epidemiology and Biostatistics, School of Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Behdad Ravarian
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Leili Rahimi
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Identification of a serum transglutaminase threshold value for the noninvasive diagnosis of symptomatic adult celiac disease patients: a retrospective study. J Gastroenterol 2016; 51:1031-1039. [PMID: 26928588 DOI: 10.1007/s00535-016-1188-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/16/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND A celiac disease (CD) diagnosis is based on duodenal histology, with the exception of children showing anti-tissue transglutaminase (anti-tTG) serum levels exceeding ten times the cut-off. Our aim was to reproduce this simplified approach in adults, identifying an anti-tTG threshold value useful to diagnose CD without endoscopic procedures. METHODS A total of 671 adult CD patients were subjected to blood sampling to determine anti-tTG serum levels, as well as to endoscopy with biopsy to perform duodenal histology. The anti-tTG serum levels/cut-off ratio was compared with the degree of duodenal lesions. RESULTS Anti-tTG serum levels/cut-off ratio determined in patients with type IIIc was significantly higher than that measured in patients with type IIIb (p < 0.001), IIIa (p < 0.001), II (p < 0.05) and 0 (p < 0.001) of Marsh-Oberhuber histological classification. A significant correlation (r = 0.297, p < 0.0001) was found between the anti-tTG serum levels/cut-off ratio and the degree of duodenal lesions. The anti-tTG serum levels/cut-off ratio was classified as an accurate parameter (AUC = 0.715, p < 0.0001), with the best diagnostic performance obtained considering the threshold value >3.6 (sensitivity = 76.8 %, PPV = 97.2 %). CONCLUSIONS The anti-tTG serum levels/cut-off ratio correlates with the degree of duodenal lesions and, if used with the threshold value >3.6, could avoid endoscopy with biopsy in about 75 % of seropositive adults waiting for CD diagnosis. However, since this procedure could also imply CD diagnosis in almost 3 % of seropositive patients with normal villous architecture, a consensus opinion is needed to suggest its use in the diagnosis of adult CD.
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Austin AS, Forsyth JM, Hill PG, Holmes GKT. Authors' response: British Society of Gastroenterology guidelines on the diagnosis and management of coeliac disease. Gut 2016; 65:717. [PMID: 26268742 DOI: 10.1136/gutjnl-2015-310202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 07/23/2015] [Indexed: 12/28/2022]
Affiliation(s)
- Andrew S Austin
- Derby Digestive Diseases Centre, Royal Derby Hospital, Derby, UK
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39
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Abstract
PURPOSE OF REVIEW The duodenal biopsy is the gold standard for the diagnosis of celiac disease. However, given improvements in the performance of serological testing, the possibility of accurately diagnosing celiac disease without the need of a biopsy has attracted interest. The European Society for Paediatric Gastroenterology, Hepatology and Nutrition has revised its recommendations to include a diagnostic algorithm that includes sequential serological testing and human leukocyte antigen genotyping for symptomatic children which would enable a diagnosis of celiac disease to be made in the absence of a confirmatory intestinal biopsy. RECENT FINDINGS Recent studies have evaluated the ESPGHAN guidelines and have mostly corroborated that celiac disease can be accurately diagnosed in specific pediatric patient populations without the need of a biopsy. However, two cautionary points have been raised that warrant further consideration - the success of this approach is highly dependent targeting a population with a high pretest probability of celiac disease, as well, the performance of serology assays must be established and the appropriate use of cutoffs is essential. SUMMARY The duodenal biopsy will remain the gold standard for diagnosing celiac disease in a majority of patients. However, as serology assays evolve and as a greater understanding of the genetic risk factors of celiac disease is achieved, more patients may be accurately diagnosed without the need for a biopsy.
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40
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Marciano F, Savoia M, Vajro P. Celiac disease-related hepatic injury: Insights into associated conditions and underlying pathomechanisms. Dig Liver Dis 2016; 48:112-9. [PMID: 26711682 DOI: 10.1016/j.dld.2015.11.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 11/11/2015] [Accepted: 11/17/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Celiac disease (CD) is the most common autoimmune enteropathy. Clinical manifestations may range from a typical malabsorption syndrome to several apparently unrelated extra-intestinal symptoms. AIM Here we specifically focus on the spectrum of CD-related liver disorders and the underlying pathomechanisms. METHODS A computer-based search up to August 2015 was completed using appropriate keywords. References from selected papers were also reviewed and used if relevant. RESULTS An unexplained hypertransaminasemia with nonspecific histologic hepatic changes is the most common hepatic presentation. CD however can coexist with a number of liver disorders such as Autoimmune Hepatitis, Autoimmune Cholangitis, Primary Biliary Cirrhosis and Primary Sclerosing Cholangitis requiring a specific treatment in addition to gluten-free diet. CD has also been associated with Viral Hepatitis, Fatty Liver, Non-Alcoholic Steatohepatitis and some severe cryptogenic hepatopaties in the liver transplantation list. Pathomechanisms underlying hepatic injury in CD are multiple, appear still not completely defined and may probably co-occur. CONCLUSIONS An ever-increasing number of CD-related liver injuries exist, probably representing a continuum of a same disorder where genetic predisposition, timing, and duration of previous gluten exposure might influence the reversibility of liver damage. Evidences, although not conclusive, support therefore testing for CD also in cryptogenic hepatobiliary conditions where the relationship with CD has not yet been fully investigated.
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Affiliation(s)
- Francesca Marciano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples, Italy.
| | - Marcella Savoia
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples, Italy.
| | - Pietro Vajro
- Department of Medicine and Surgery, Pediatrics Section, University of Salerno, Baronissi, Italy; ELFID, University of Naples "Federico II", Naples, Italy.
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41
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Type 1 diabetic adults should be screened for coeliac autoimmunity. Arab J Gastroenterol 2015; 16:81-2. [PMID: 26526509 DOI: 10.1016/j.ajg.2015.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 05/28/2015] [Accepted: 09/26/2015] [Indexed: 11/20/2022]
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Ciccocioppo R, Kruzliak P, Cangemi GC, Pohanka M, Betti E, Lauret E, Rodrigo L. The Spectrum of Differences between Childhood and Adulthood Celiac Disease. Nutrients 2015; 7:8733-51. [PMID: 26506381 PMCID: PMC4632446 DOI: 10.3390/nu7105426] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 10/06/2015] [Accepted: 10/12/2015] [Indexed: 02/06/2023] Open
Abstract
An old saying states that ''children are not little adults" and this certainly holds true for celiac disease, as there are many peculiar aspects regarding its epidemiology, diagnosis, clinical presentations, associated diseases, and response to treatment in pediatric compared to adult populations, to such an extent that it merits a description of its own. In fact, contrary to the past when it was thought that celiac disease was a disorder predominantly affecting childhood and characterized by a malabsorption syndrome, nowadays it is well recognized that it affects also adult and elderly people with an impressive variability of clinical presentation. In general, the clinical guidelines for diagnosis recommend starting with specific serologic testing in all suspected subjects, including those suffering from extraintestinal related conditions, and performing upper endoscopy with appropriate biopsy sampling of duodenal mucosa in case of positivity. The latter may be omitted in young patients showing high titers of anti-transglutaminase antibodies. The subsequent management of a celiac patient differs substantially depending on the age at diagnosis and should be based on the important consideration that this is a lifelong condition.
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Affiliation(s)
- Rachele Ciccocioppo
- Rachele Ciccocioppo, Center for the Study and Cure of Celiac Disease, Clinica Medica I, Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation, University of Pavia, 19-27100 Pavia, Italy.
| | - Peter Kruzliak
- International Clinical Research Center, St. Anne's University Hospital and Masaryk University, 65691 Brno, Czech Republic.
| | - Giuseppina C Cangemi
- Rachele Ciccocioppo, Center for the Study and Cure of Celiac Disease, Clinica Medica I, Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation, University of Pavia, 19-27100 Pavia, Italy.
| | - Miroslav Pohanka
- Faculty of Military Health Sciences, University of Defence, Trebešská 1575-500 01 Hradec Kralove, Czech Republic.
- Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, 61300 Brno, Czech Republic.
| | - Elena Betti
- Rachele Ciccocioppo, Center for the Study and Cure of Celiac Disease, Clinica Medica I, Department of Internal Medicine, IRCCS Policlinico San Matteo Foundation, University of Pavia, 19-27100 Pavia, Italy.
| | - Eugenia Lauret
- Gastroenterology Unit, Hospital Universitario Central de Asturias, 33000 Oviedo, Spain.
| | - Luis Rodrigo
- Gastroenterology Unit, Hospital Universitario Central de Asturias, 33000 Oviedo, Spain.
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Sugai E, Hwang HJ, Vázquez H, Moreno ML, Costa F, Longarini G, Pinto-Sánchez MI, Niveloni S, Smecuol E, Mazure RM, Verdu EF, Mauriño E, Bai JC. Should ESPGHAN guidelines for serologic diagnosis of celiac disease be used in adults? A prospective analysis in an adult patient cohort with high pretest probability. Am J Gastroenterol 2015; 110:1504-5. [PMID: 26465908 DOI: 10.1038/ajg.2015.242] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Emilia Sugai
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Hui J Hwang
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Horacio Vázquez
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - María L Moreno
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Florencia Costa
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Gabriela Longarini
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - María I Pinto-Sánchez
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina.,Farncombe Family Digestive Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Sonia Niveloni
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Edgardo Smecuol
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Roberto M Mazure
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Elena F Verdu
- Farncombe Family Digestive Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Eduardo Mauriño
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina
| | - Julio C Bai
- Small Bowel Section, Department of Medicine, Dr. C. Bonorino Udaondo Gastroenterology Hospital, Buenos Aires, Argentina.,Universidad del Salvador, Buenos Aires, Argentina
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Trovato CM, Montuori M, Anania C, Barbato M, Vestri AR, Guida S, Oliva S, Mainiero F, Cucchiara S, Valitutti F. Are ESPGHAN "biopsy-sparing" guidelines for celiac disease also suitable for asymptomatic patients? Am J Gastroenterol 2015; 110:1485-9. [PMID: 26372508 DOI: 10.1038/ajg.2015.285] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 07/01/2015] [Accepted: 08/01/2015] [Indexed: 02/06/2023]
Abstract
OBJECTIVES In 2012, European Society of Pediatric Gastroenterology, Hepatology, and Nutrition published novel guidelines on celiac disease (CD) diagnosis. Symptomatic children with serum anti-transglutaminase (anti-tTG) antibody levels ≥10 times upper limit of normal (ULN) could avoid duodenal biopsies after positive HLA test and serum anti-endomysial antibodies (EMAs). So far, both asymptomatic and symptomatic patients with anti-tTG titer <10 times ULN should undergo upper endoscopy with duodenal biopsies to confirm diagnosis. The aim of this study was to assess the accuracy of serological tests to diagnose CD in asymptomatic patients. METHODS We retrospectively reviewed data of 286 patients (age range: 10 months to 17 years) with CD diagnosis based on elevated titer of anti-tTG, EMA positivity, and histology. All patients were distinguished between symptomatic and asymptomatic; histological lesions were graded according to the Marsh-Oberhuber (MO) criteria. Fisher exact test was applied to analyze both groups in terms of diagnostic reliability of serological markers. RESULTS A total of 196 patients (68.53%) had anti-tTG titers ≥10 times ULN. Among them, a group of 156 patients (79.59%) also had symptoms suggestive of CD ("high-titer" symptomatic); of these, 142 patients (91.02%) showed severe lesion degree (3a, 3b, 3c MO). Conversely, 40 out of 196 patients (20.40%) were asymptomatic ("high-titer" asymptomatic) and 37 patients (92.5%) of them showed severe lesion degree (3a, 3b, 3c MO). No difference in histological damage was found between "high-titer" symptomatic and "high-titer" asymptomatic children (Fisher exact test, P=1.000). CONCLUSIONS If confirmed in large multicenter prospective studies, the "biopsy-sparing" protocol seems to be applicable to both symptomatic and asymptomatic patients with anti-tTG titer ≥10 times ULN, positive EMA, and HLA-DQ2/DQ8.
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Affiliation(s)
- Chiara Maria Trovato
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Monica Montuori
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Caterina Anania
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Maria Barbato
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Anna Rita Vestri
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Rome, Italy
| | - Sofia Guida
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Salvatore Oliva
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Fabrizio Mainiero
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Salvatore Cucchiara
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
| | - Francesco Valitutti
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, Rome, Italy
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Abstract
Coeliac disease is a treatable, gluten-induced disease that often occurs concurrently with other autoimmune diseases. In genetic studies since 2007, a partial genetic overlap between these diseases has been revealed and further insights into the pathophysiology of coeliac disease and autoimmunity have been gained. However, genetic screening is not sensitive and specific enough to accurately predict disease development. The current method to diagnose individuals with coeliac disease is serological testing for the presence of autoantibodies whilst the patient is on a regular, gluten-containing diet, followed by gastroduodenoscopy with duodenal biopsy. Serological test results can also predict the probability of coeliac disease development, even if asymptomatic. In patients with autoimmune diseases known to occur alongside coeliac disease (particularly type 1 diabetes mellitus or thyroid disorders), disease screening-and subsequent treatment if coeliac disease is detected-could have beneficial effects on progression or potential complications of both diseases, owing to the effectiveness of gluten-free dietary interventions in coeliac disease. However, whether diagnosis of coeliac disease and subsequent dietary treatment can prevent autoimmune diseases is debated. In this Review, the genetic and immunological features of coeliac disease, overlap with other autoimmune diseases and implications for current screening strategies will be discussed.
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Korponay-Szabó IR, Troncone R, Discepolo V. Adaptive diagnosis of coeliac disease. Best Pract Res Clin Gastroenterol 2015; 29:381-98. [PMID: 26060104 DOI: 10.1016/j.bpg.2015.05.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 04/24/2015] [Accepted: 05/07/2015] [Indexed: 01/31/2023]
Abstract
Coeliac disease has for a long time simply been regarded as a gluten-dependent enteropathy and a duodenal biopsy was required in all patients for the diagnosis. It is now accepted that autoimmunity against transglutaminase 2 is an earlier, more universal and more specific feature of coeliac disease than histologic lesions. Moreover, high serum levels of combined anti-transglutaminase 2 and anti-endomysium antibody positivity have excellent predictive value for the presence of enteropathy with villous atrophy. This makes the histology evaluation of the gut no longer necessary in well defined symptomatic paediatric patients with compatible HLA-DQ2 and/or DQ8 background. The biopsy-sparing diagnostic route is not yet recommended by gastroenterologists for adults, and certain clinical circumstances (immunodeficiency conditions, extraintestinal manifestations, type-1 diabetes mellitus, age less than 2 years) may require modified diagnostic approaches. Coeliac patients with preserved duodenal villous structure do exist and these need a more extended evaluation by immunologic and molecular biology tools.
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Affiliation(s)
- Ilma R Korponay-Szabó
- Department of Paediatrics, University of Debrecen Medical School, Nagyerdei krt 98, Debrecen 4032, Hungary; Coeliac Disease Centre, Heim Pál Children's Hospital, Üllöi út 86, Budapest 1089, Hungary.
| | - Riccardo Troncone
- University of Naples Federico II, Department of Medical Translational Sciences, Section of Pediatrics, Via Sergio Pansini 5, 80131 Napoli, Italy
| | - Valentina Discepolo
- University of Naples Federico II, Department of Medical Translational Sciences, Section of Pediatrics, Via Sergio Pansini 5, 80131 Napoli, Italy; University of Chicago, Department of Medicine and the University of Chicago Celiac Disease Center, Chicago 900 E 57th Street, 60615 Chicago, IL, USA
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47
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Leja M, Shums Z, Nikitina-Zake L, Gavars M, Kikuste I, Milo J, Daugule I, Pahomova J, Pirags V, Dzerve V, Klovins J, Erglis A, Norman GL. Prevalence estimation of celiac disease in the general adult population of Latvia using serology and HLA genotyping. United European Gastroenterol J 2015; 3:190-9. [PMID: 25922680 DOI: 10.1177/2050640615569379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Accepted: 01/01/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Prevalence estimates for celiac disease (CD) depend on the method used. The role of deamidated gliadin peptide (DGP) and genetic testing in epidemiological studies and diagnostic settings of celiac disease (CD) has still to be established. OBJECTIVES The objective of this article is to assess the prevalence of CD in Latvia by combining serological tests with DQ2.5/DQ8 testing. METHODS A total of 1444 adults from a randomly selected cross-sectional general population sample were tested by ELISA for tTG IgA, DGP IgA and IgG antibodies (QUANTA Lite®, Inova Diagnostics Inc). Samples with tTG IgA ≥20U were tested for EMA IgA by indirect immunofluorescence assay, and all specimens with tTG IgA ≥15U were tested by QUANTA-Flash® chemiluminescent assays (CIA) (Inova Diagnostics Inc) for tTG IgA, DGP IgA and IgG. DQ2.5/8 was detected in individuals with any positive ELISA test and a subgroup of controls. RESULTS Forty-three individuals (2.98%; 95% CI: 2.10-3.86%) tested positive by at least one ELISA test; 41.86% of the serology-positive individuals (any test above the cutoff) were DQ positive. Six individuals (0.42%; 95% CI: 0.09-0.75%) were triple ELISA positive, and DQ2.5 or DQ8 was positive in all; 0.35% (95% CI: 0.05-0.65%) were tTG IgA and EMA positive. Two tTG IgA-negative cases were both DGP IgG and IgA positive, both being DQ positive; including them in the "serology-positive" group would increase the prevalence to 0.49% (95% CI: 0.13-0.85%). CIA tests revealed 2 tTG IgA-positive and EMA-negative cases with a positive genotype. DQ2.5 or DQ8 genotype was positive in 28.6% of the serology-negative population. CONCLUSIONS Estimates of the prevalence of CD in Latvia based on the serogenetic testing approach range from 0.35% to 0.49% depending on the criteria used. There is a rationale for combining serological tests and DQ2.5/8 genotyping.
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Affiliation(s)
- Marcis Leja
- University of Latvia, Faculty of Medicine, Riga East University Hospital, Riga, Latvia
| | | | | | | | | | - Jay Milo
- Inova Diagnostics Inc, San Diego, CA, USA
| | | | | | - Valdis Pirags
- University of Latvia, Faculty of Medicine, Pauls Stradins Clinical University Hospital, Riga, Latvia
| | - Vilnis Dzerve
- Institute of Cardiology, University of Latvia, Riga, Latvia
| | - Janis Klovins
- Latvian Biomedical Research and Study Centre, Riga, Latvia
| | - Andrejs Erglis
- Institute of Cardiology, University of Latvia, Riga, Latvia
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48
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Kurien M, Mooney PD, Sanders DS. Editorial: is a histological diagnosis mandatory for adult patients with suspected coeliac disease? Aliment Pharmacol Ther 2015; 41:146-7. [PMID: 25483432 DOI: 10.1111/apt.13002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 10/03/2014] [Indexed: 12/08/2022]
Affiliation(s)
- M Kurien
- Gastroenterology & Liver Unit, Royal Hallamshire Hospital, Sheffield, UK.
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