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Sharp SA, Jones SE, Kimmitt RA, Weedon MN, Halpin AM, Wood AR, Beaumont RN, King S, van Heel DA, Campbell PM, Hagopian WA, Turner JM, Oram RA. A single nucleotide polymorphism genetic risk score to aid diagnosis of coeliac disease: a pilot study in clinical care. Aliment Pharmacol Ther 2020; 52:1165-1173. [PMID: 32790217 DOI: 10.1111/apt.15826] [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] [Received: 12/10/2019] [Revised: 01/05/2020] [Accepted: 05/10/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Single nucleotide polymorphism-based genetic risk scores (GRS) model genetic risk as a continuum and can discriminate coeliac disease but have not been validated in clinic. Human leukocyte antigen (HLA) DQ gene testing is available in clinic but does not include non-HLA attributed risk and is limited by discrete risk stratification. AIMS To accurately characterise both HLA and non-HLA coeliac disease genetic risk as a single nucleotide polymorphism-based GRS and evaluate diagnostic utility. METHODS We developed a 42 single nucleotide polymorphism coeliac disease GRS from a European case-control study (12 041 cases vs 12 228 controls) using HLA-DQ imputation and published genome-wide association studies. We validated the GRS in UK Biobank (1237 cases) and developed direct genotyping assays. We tested the coeliac disease GRS in a pilot clinical cohort of 128 children presenting with suspected coeliac disease. RESULTS The GRS was more discriminative of coeliac disease than HLA-DQ stratification in UK Biobank (receiver operating characteristic area under the curve [ROC-AUC] = 0.88 [95% CIs: 0.87-0.89] vs 0.82 [95% CIs: 0.80-0.83]). We demonstrated similar discrimination in the pilot clinical cohort (114 cases vs 40 controls, ROC-AUC = 0.84 [95% CIs: 0.76-0.91]). As a rule-out test, no children with coeliac disease in the clinical cohort had a GRS below 38th population centile. CONCLUSIONS A single nucleotide polymorphism-based GRS may offer more effective and cost-efficient testing of coeliac disease genetic risk in comparison to HLA-DQ stratification. As a comparatively inexpensive test it could facilitate non-invasive coeliac disease diagnosis but needs detailed assessment in the context of other diagnostic tests and against current diagnostic algorithms.
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Affiliation(s)
- Seth A Sharp
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Samuel E Jones
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | | | - Michael N Weedon
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Anne M Halpin
- Division of Nephrology and Transplant Immunology, University of Alberta, Edmonton, AB, Canada
| | - Andrew R Wood
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Robin N Beaumont
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - Seema King
- Faculty of Medicine and Dentistry, Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - David A van Heel
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Patricia M Campbell
- Division of Nephrology and Transplant Immunology, University of Alberta, Edmonton, AB, Canada
| | | | - Justine M Turner
- Faculty of Medicine and Dentistry, Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Richard A Oram
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.,Royal Devon & Exeter, NHS Foundation Trust, Exeter, UK
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First-degree Relatives of Celiac Disease Patients Have Increased Seroreactivity to Serum Microbial Markers. Nutrients 2020; 12:nu12041073. [PMID: 32294897 PMCID: PMC7230150 DOI: 10.3390/nu12041073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 01/22/2023] Open
Abstract
Risk of celiac disease (CD) is increased in relatives of CD patients due to genetic and possible environmental factors. We recently reported increased seropositivity to anti-Saccharomyces cerevisiae (ASCA), Pseudomonas fluorescens-associated sequence (anti-I2) and Bacteroides caccae TonB-linked outer membrane protein (anti-OmpW) antibodies in CD. We hypothesized these markers also to be overrepresented in relatives. Seropositivity and levels of ASCA, anti-I2 and anti-OmpW were compared between 463 first-degree relatives, 58 untreated and 55 treated CD patients, and 80 controls. CD-associated human leukocyte antigen (HLA)-haplotypes and transglutaminase (tTGab) and endomysium (EmA) antibodies were determined. One or more of the microbial antibodies was present in 75% of relatives, 97% of untreated and 87% of treated CD patients and 44% of the controls. The relatives had higher median ASCA IgA (9.13 vs. 4.50 U/mL, p < 0.001), ASCA IgG (8.91 vs. 5.75 U/mL, p < 0.001) and anti-I2 (absorbance 0.74 vs. 0.32, p < 0.001) levels than controls. There was a weak, positive correlation between tTGab and ASCA (r = 0.31, p < 0.001). Seropositivity was not significantly associated with HLA. To conclude, seropositivity to microbial markers was more common and ASCA and anti-I2 levels higher in relatives of CD patients than controls. These findings were not associated with HLA, suggesting the role of other genetic and environmental factors.
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Fallah H, Akbari MT, Mirzajani S, Ranjbaran F, Mehdizadeh B, Sayad A, Taheri M. Association between HLA alleles and risk of celiac disease in Iranian patients. Hum Antibodies 2020; 28:123-129. [PMID: 31658053 DOI: 10.3233/hab-190398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Celiac disease (CD) is a common autoimmune disease that is manifested by inflammation of the small intestine and varying extra intestinal symptoms, also considered to be associated with human HLA-DQ genes. In this study, 40 patients of CD and 40 healthy control samples were genotyped for HLA-DQB1 and 14 patients of CD and 14 healthy control samples were genotyped for HLA-DQA1genes using the SSP-PCR technique and a commercial kit.The DQA1*05 allele had the highest frequency among the patient group (42.86%). The frequency of this allele was 28.57% in healthy controls, and there was no statistically significant difference in this case (p= 0.771).The DQB1*02 allele was the most common in patients (33.75%) followed by the DQB1*03 allele (31.25%).The difference in frequency of the HLA-DQB1*02 allele in the patient and control groups was statistically significant (P= 0.0002, OR = 4.72). The remarkable differences in the distribution of HLA-DQ2 in Iranian patients compared to controls and relative risks signified the role of these alleles in the development of CD in Iranian patients and confirmed the likelihood of using HLA-DQ typing in the substantiation of the disease.
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Affiliation(s)
- Hamid Fallah
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taghi Akbari
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sara Mirzajani
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Bijan Mehdizadeh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arezou Sayad
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Kauma S, Kaukinen K, Huhtala H, Kivelä L, Pekki H, Salmi T, Saavalainen P, Lindfors K, Kurppa K. The Phenotype of Celiac Disease Has Low Concordance between Siblings, Despite a Similar Distribution of HLA Haplotypes. Nutrients 2019; 11:nu11020479. [PMID: 30823533 PMCID: PMC6412523 DOI: 10.3390/nu11020479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/20/2019] [Accepted: 02/22/2019] [Indexed: 12/12/2022] Open
Abstract
The factors determining the presentation of celiac disease are unclear. We investigated the phenotypic concordance and the distribution of human leukocyte antigen (HLA) risk haplotypes in affected siblings. One hundred sibling pairs were included. Clinical and histological parameters and HLA haplotypes were compared between the first diagnosed indexes and their siblings. The phenotype was categorized into gastrointestinal, extra-intestinal, malabsorption/anemia, and asymptomatic. The phenotype was fully concordant in 21 pairs. The most common concordant phenotype was gastrointestinal (14 pairs). Indexes had more anemia/malabsorption and extra-intestinal symptoms than siblings (45% vs. 20%, p < 0.001 and 33% vs. 12%, p < 0.001, respectively). Twenty siblings and none of the indexes were asymptomatic. The indexes were more often women (81% vs. 63%, p = 0.008). They were also more often seronegative (11% vs. 0%, p = 0.03) and younger (37 vs. 43 year, p < 0.001), and had more severe histopathology (total/subtotal atrophy 79% vs. 58%, p = 0.047) at diagnosis. The indexes and siblings were comparable in other disease features. Pairs with discordant presentation had similar HLA haplotypes more often than the concordant pairs. The phenotype was observed to vary markedly between siblings, with the indexes generally having a more severe presentation. HLA did not explain the differences, suggesting that non-HLA genes and environmental factors play significant roles.
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Affiliation(s)
- Saana Kauma
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
| | - Katri Kaukinen
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
- Department of Internal Medicine, Tampere University Hospital, 33521 Tampere, Finland.
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, 33520 Tampere, Finland.
| | - Laura Kivelä
- Tampere Centre for Child Health Research, Tampere University and Tampere University Hospital, 33521 Tampere, Finland.
| | - Henna Pekki
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
| | - Teea Salmi
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
- Department of Dermatology, Tampere University Hospital, 33521 Tampere, Finland.
| | - Päivi Saavalainen
- Research Program Unit, Immunobiology, and Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland.
| | - Katri Lindfors
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
| | - Kalle Kurppa
- Tampere Centre for Child Health Research, Tampere University and Tampere University Hospital, 33521 Tampere, Finland.
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Ayesh BM, Zaqout EK, Yassin MM. HLA-DQ2 and -DQ8 haplotypes frequency and diagnostic utility in celiac disease patients of Gaza strip, Palestine. AUTOIMMUNITY HIGHLIGHTS 2017; 8:11. [PMID: 29143181 PMCID: PMC5688040 DOI: 10.1007/s13317-017-0099-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/06/2017] [Indexed: 12/27/2022]
Abstract
Purpose Celiac disease (CD) diagnosis can be established by serological and small bowel biopsy (SBB), while absence of HLA-DQ2 and -DQ8 haplotypes excludes the disease. The present study aims at evaluating the diagnosis of a representative sample of pediatric and adult CD patients of Gaza strip in light of DQ2 and DQ8 haplotypes expression. Methods Unrelated CD patients (n = 101) and matched healthy controls (n = 97) were genotyped for DQA1*05, DQB1*02 and DQB1*03:02 alleles by allele-specific real-time PCR. The diagnosis was re-evaluated according to the patient laboratory tests and HLA-DQ genotype. Results The diagnosis of 35 patients who have been managed for CD could not be confirmed. Twenty-five of them were diagnosed upon their clinical presentation only. The remaining were either negative for serological and SBB tests or negative for HLA-DQ haplotypes. The HLA-DQ alleles were negative in 4 SBB and one Anti-EMA positive patients. The frequency of DQ2 and DQ8 haplotypes among the remaining 65 confirmed cases was 70.8 and 15.4%, respectively, compared to 17.5 and 27.8% in the controls. The DQB1*02 allele was the most common in the cases (84.6%) followed by DQA1*05 allele (80%) and DQB1*03:02 allele (20%). The DQA1*05 allele was commonest in the control group (54.6%) followed by DQB1*02 allele (42.3%) and DQB1*03:02 allele (28.9%). Conclusions Absence of HLA-DQ2 and HLA-DQ8 genotyping in the workup of patients may result in CD misdiagnosis, particularly in a setting with poor histopathological diagnostic capacity.
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Affiliation(s)
- Basim M. Ayesh
- Department of Laboratory Medical Sciences, Alaqsa University, P.O. Box 4051, Gaza, Palestine
| | - Eman Kh. Zaqout
- Forensic Lab, Palestinian Ministry of Justice, Gaza, Palestine
| | - Maged M. Yassin
- Faculty of Medicine, The Islamic University of Gaza, Gaza, Palestine
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Radmard AR, Hashemi Taheri AP, Salehian Nik E, Kooraki S, Kolahdoozan S, Mirminachi B, Sotoudeh M, Ekhlasi G, Malekzadeh R, Shahbazkhani B. MR enterography in nonresponsive adult celiac disease: Correlation with endoscopic, pathologic, serologic, and genetic features. J Magn Reson Imaging 2017; 46:1096-1106. [DOI: 10.1002/jmri.25646] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/10/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
- Amir Reza Radmard
- Department of Radiology, Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | | | - Elham Salehian Nik
- Department of Radiology, Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - Soheil Kooraki
- Department of Radiology, Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - Shadi Kolahdoozan
- Autoimmune and Motility Disorders of the Gastro-Intestinal Tract Research Center, Digestive Diseases Research Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Babak Mirminachi
- Autoimmune and Motility Disorders of the Gastro-Intestinal Tract Research Center, Digestive Diseases Research Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Masoud Sotoudeh
- Department of Pathology, Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - Golnaz Ekhlasi
- Autoimmune and Motility Disorders of the Gastro-Intestinal Tract Research Center, Digestive Diseases Research Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Reza Malekzadeh
- Autoimmune and Motility Disorders of the Gastro-Intestinal Tract Research Center, Digestive Diseases Research Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Bijan Shahbazkhani
- Autoimmune and Motility Disorders of the Gastro-Intestinal Tract Research Center, Digestive Diseases Research Institute; Tehran University of Medical Sciences; Tehran Iran
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Díaz-Redondo A, Miranda-Bautista J, García-Lledó J, Gisbert JP, Menchén L. The potential usefulness of human leukocyte antigen typing for celiac disease screening: A systematic review and meta-analysis. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2016; 107:423-9. [PMID: 26140635 DOI: 10.17235/reed.2015.3758/2015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIM The presence of specific human leukocyte antigen-DQ2 and DQ8 seems to be necessary for celiac disease development, but the real contribution of its typing for screening is still uncertain. We aim to conduct a systematic review and meta-analysis of the diagnostic performance of human leukocyte antigen typing tests for celiac disease screening. METHODS Systematic review of published studies assessing accuracy of human leukocyte antigen DQ2 and DQ8 typing for the detection of celiac disease were selected. MEDLINE and EMBASE were searched from 1st January 2004 until 31st December 2013. Two independent researchers carried out selection and classification of studies, data extraction and analysis. Meta-analysis combining sensitivities, specificities and likelihood ratios of HLA-DQ2 and DQ8 for the diagnosis of celiac disease were carried out. RESULTS 6 studies including 1303 individuals were finally evaluated. Pooled sensitivity was 98% (95% confidence interval: 97-99). Overall specificity was 45% (95% confidence interval: 41-48). Regarding specificity, studies were heterogeneous and a subgroup analysis was done according to the type of population included. Overall negative likelihood ratio was 0.05 (0.03-0.09). CONCLUSIONS Due to its great sensitivity and low negative likelihood ratio, human leukocyte antigen-DQ2/DQ8 typing would be an appropriate test for ruling out celiac disease in the general population suffering related symptoms, and even more in at risk population.
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Pallav K, Kabbani T, Tariq S, Vanga R, Kelly CP, Leffler DA. Clinical utility of celiac disease-associated HLA testing. Dig Dis Sci 2014; 59:2199-206. [PMID: 24705698 PMCID: PMC4149591 DOI: 10.1007/s10620-014-3143-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 03/26/2014] [Indexed: 12/30/2022]
Abstract
BACKGROUND Negative predictive value (NPV) of celiac disease (CD)-related human leukocyte antigens (HLA) DQ2 and DQ8 approaches 100 % in individual patients. However, studies evaluating its exclusionary utility in patient groups are lacking. AIM We aim to assess the performance of HLA testing when applied to patient groups with varying characteristics and propose evidence-based recommendations for its clinical use. METHODS Demographic and clinical information was recorded in patients undergoing HLA testing. Using predetermined criteria, patients were classified as CD, non-CD, or indeterminate. Diagnostic yield of HLA testing was defined as the percentage of patients in whom CD could be excluded based on negative HLA test. RESULTS Two hundred and fifty-six patients underwent testing for CD-related HLA DQ2 and DQ8. 102 (100 non-CD, 2 CD) patients tested HLA negative for a 98 % NPV and 39 % diagnostic yield. Diagnostic yield was highest (60 %) in patients with intraepithelial lymphocytosis plus normal IgA tissue transglutaminase antibody (IgA-tTG) and lowest in patients with positive IgA-tTG plus villous atrophy (0 %). CD was diagnosed in two HLA-negative patients, who carried half of DQ2.5 trans genotype. CONCLUSIONS Diagnostic yield of CD-related HLA testing varies widely depending on clinical indication. HLA testing is a practical and valuable test for most patients in whom initial evaluation for CD is inconclusive. A negative HLA result usually obviates the need for further celiac testing including endoscopy and gluten challenge. Rarely, in patients reported as HLA negative, half of HLA DQ2.5 (cis or trans) is sufficient for development of CD.
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Affiliation(s)
- Kumar Pallav
- The Celiac Center, Beth Israel Deaconess Medical Center, Harvard Medical School. 330 Brookline Avenue Boston, MA 02215
| | - Toufic Kabbani
- The Celiac Center, Beth Israel Deaconess Medical Center, Harvard Medical School. 330 Brookline Avenue Boston, MA 02215
| | - Sohaib Tariq
- The Celiac Center, Beth Israel Deaconess Medical Center, Harvard Medical School. 330 Brookline Avenue Boston, MA 02215
| | - Rohini Vanga
- The Celiac Center, Beth Israel Deaconess Medical Center, Harvard Medical School. 330 Brookline Avenue Boston, MA 02215
| | - Ciaran P. Kelly
- The Celiac Center, Beth Israel Deaconess Medical Center, Harvard Medical School. 330 Brookline Avenue Boston, MA 02215
| | - Daniel A. Leffler
- The Celiac Center, Beth Israel Deaconess Medical Center, Harvard Medical School. 330 Brookline Avenue Boston, MA 02215
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Molina-Infante J, Santolaria S, Montoro M, Esteve M, Fernández-Bañares F. Sensibilidad al gluten no celiaca: una revisión crítica de la evidencia actual. GASTROENTEROLOGIA Y HEPATOLOGIA 2014; 37:362-71. [DOI: 10.1016/j.gastrohep.2014.01.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/21/2013] [Accepted: 01/16/2014] [Indexed: 12/13/2022]
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Evaluation of HLA-DQ2/DQ8 genotype in patients with celiac disease hospitalised in 2012 at the Department of Paediatrics. GASTROENTEROLOGY REVIEW 2014; 9:32-7. [PMID: 24868296 PMCID: PMC4027840 DOI: 10.5114/pg.2014.40848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 07/21/2013] [Accepted: 09/15/2013] [Indexed: 11/17/2022]
Abstract
Introduction Celiac disease (CD) is a permanent intolerance to gluten that occurs in genetically predisposed individuals and leads to small intestinal mucosa damage. According to ESPGHAN guidelines from 2012, CD can be diagnosed in a patient with characteristic clinical symptoms, in whom, anti-tissue transglutaminase antibodies (> 10 times the upper limit) are found, endomysial antibodies (EMA) is confirmed and a positive genetic test is obtained. In these conditions no small-bowel biopsies are required. Aim Evaluation of the presence of HLA-DQ2 and HLA-DQ8 haplotypes in children with previously diagnosed CD, hospitalised in 2012 at the Department of Paediatrics and Immunology and/or the Gastroenterological Outpatient Clinic, and their relatives. Material and methods Blood samples of 22 subjects, including 9 children with CD diagnosed on the basis of clinical symptoms, serological investigations and small-intestine biopsy, 7 diagnosed on the basis of clinical symptoms and serological investigations, 2 with the suspicion of CD on the basis of clinical symptoms and 4 relatives of a child with CD. Methods: HLA-DQ2/DQ8 test, automatic evaluation by EUROArrayScan. Results The presence of HLA-DQ2 and/or HLA-DQ8 genotype was confirmed in 16 children with CD diagnosed on the basis of clinical symptoms and serological tests with/without intestinal biopsy, in 2 with the suspicion of CD and in 1 relative of a celiac child. Conclusions The evaluation of HLA-DQ2/DQ8 haplotype confirms the genetic predisposition to CD in subjects with the disease diagnosed previously on the basis of clinical symptoms, serological tests or intestinal biopsy. Genetic testing is particularly indicated for the diagnosis of CD in infants consuming gluten for a short time and in small amounts.
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Celiac Disease Resolution After Allogeneic Bone Marrow Transplantation is Associated with Absence of Gliadin-Specific Memory Response by Donor-Derived Intestinal T-cells. J Clin Immunol 2013; 33:1395-402. [DOI: 10.1007/s10875-013-9943-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Accepted: 09/30/2013] [Indexed: 12/23/2022]
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Santolaria S, Dominguez M, Alcedo J, Abascal M, García-Prats MD, Marigil M, Vera J, Ferrer M, Montoro M. [Lymphocytic duodenosis: etiological study and clinical presentations]. GASTROENTEROLOGIA Y HEPATOLOGIA 2013; 36:565-73. [PMID: 24007857 DOI: 10.1016/j.gastrohep.2013.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 05/29/2013] [Accepted: 06/05/2013] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Lymphocytic duodenosis (LD) is a characteristic lesion in the initial phases of celiac disease (CD) but can be associated with many other entities. The aim of this study was to evaluate the prevalence of distinct causes of LD and possible differences in clinical presentation according to etiology. METHODS A retrospective study was performed that included 194 patients diagnosed with LD (more than 25 intraepithelial lymphocytes per 100 epithelial cells). A preestablished strategy to evaluate the cause of the disease was followed that included celiac serology (antitransglutaminase antibodies), HLA-DQ2/DQ8 genotypes, diagnosis of Helicobacter pylori and small intestinal bacterial overgrowth (SIBO). Diagnosis of CD was established on the basis of clinical and histological response to a gluten-free diet in patients with positive serology or compatible findings on HLA-DQ2 (at least one of the alleles) or -DQ8 (both alleles) study. RESULTS The most frequent cause of LD was CD (39%), followed by SBBO (22%), H.pylori (14%), CD and SIBO (12%), and other causes (13%). Most of the patients (83%) had a compatible HLA-DQ2 or -DQ8 genotype. In these patients, the most frequent diagnosis was CD (46%), while in the absence of HLA-DQ2/DQ8, the most frequent diagnoses were SIBO (44%) and H. pylori (22%). CD was the most frequent diagnosis in patients referred for dyspepsia, diarrhea and anemia, while H. pylori was the most frequent diagnosis in patients with abdominal pain. CONCLUSIONS The most common causes of LD in our environment are CD, followed by SIBO and H. pylori infection.
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Affiliation(s)
- Santos Santolaria
- Unidad de Gastroenterología y Hepatología, Hospital San Jorge, Huesca, España.
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Leonardi S, Praticò AD, Lionetti E, Spina M, Vitaliti G, Rosa ML. Intramuscular vs intradermal route for hepatitis B booster vaccine in celiac children. World J Gastroenterol 2012; 18:5729-33. [PMID: 23155313 PMCID: PMC3484341 DOI: 10.3748/wjg.v18.i40.5729] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 07/16/2012] [Accepted: 08/14/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare intradermal (ID) and intramuscular (IM) booster doses, which have been used in healthy and high risk subjects, such as healthcare workers, haemodialysis patients, human immunodeficiency virus patients, and renal transplant recipients unresponsive to initial hepatitis B vaccination, in celiac individuals.
METHODS: We conducted our study on 58 celiac patients, vaccinated in the first year of life, whose blood analysis had showed the absence of protective hepatitis B virus (HBV) antibodies. All patients had received the last vaccine injection at least one year before study enrolment and they had been on a gluten free diet for at least 1 year. In all patients we randomly performed an HBV vaccine booster dose by ID or IM route. Thirty celiac patients were revaccinated with recombinant hepatitis B vaccine (Engerix B) 2 μg by the ID route, while 28 celiac patients were revaccinated with Engerix B 10 μg by the IM route. Four weeks after every booster dose, the anti-hepatitis B surface (HBs) antibody titer was measured by an enzyme-linked immune-adsorbent assay. We performed a maximum of three booster doses in patients with no anti-HBs antibodies after the first or the second vaccine dose. The cut off value for a negative anti-HBs antibody titer was 10 IU/L. Patients with values between 10 and 100 IU/L were considered "low responders" while patients with an antibody titer higher than 1000 IU/L were considered "high responders".
RESULTS: No significant difference in age, gender, duration of illness, and years of gluten intake was found between the two groups. We found a high percentage of "responders" after the first booster dose (ID = 76.7%, IM = 78.6%) and a greater increase after the third dose (ID = 90%, IM = 96.4%) of vaccine in both groups. Moreover we found a significantly higher number of high responders (with an anti-HBs antibody titer > 1000 IU/L) in the ID (40%) than in the IM (7.1%) group, and this difference was evident after the first booster dose of vaccination (P < 0.01). No side effects were recorded in performing delivery of the vaccine by either the ID or IM route.
CONCLUSION: Our study suggests that both ID and IM routes are effective and safe options to administer a booster dose of HBV vaccine in celiac patients. However the ID route seems to achieve a greater number of high responders and to have a better cost/benefit ratio.
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Santolaria S, Alcedo J, Cuartero B, Diez I, Abascal M, García-Prats MD, Marigil M, Vera J, Ferrer M, Montoro M. Spectrum of gluten-sensitive enteropathy in patients with dysmotility-like dyspepsia. GASTROENTEROLOGIA Y HEPATOLOGIA 2012; 36:11-20. [PMID: 23103052 DOI: 10.1016/j.gastrohep.2012.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/17/2012] [Accepted: 07/24/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Dysmotility-like dyspepsia symptoms are frequent in patients with gluten-sensitive enteropathy (GSE). Current data suggest that patients with mild enteropathy may be present with gluten-sensitive symptoms and complications. AIM To investigate the prevalence of GSE, including mild enteropathy, in patients with dysmotility-like dyspepsia symptoms. METHODS We retrospectively studied 142 patients who presented dysmotility-like dyspepsia symptoms and normal upper gastrointestinal endoscopy. Endoscopic duodenal biopsies were taken and processed using hematoxylin-eosin staining and CD3 immunophenotyping. In patients with enteropathy (number of intraepithelial lymphocytes greater than 25 per 100 enterocytes) we also performed coeliac serology (anti-tissue transglutaminase IgA) and HLA-DQ2/DQ8 genotyping. A gluten-free diet was offered if one of these markers was positive. The final GSE diagnosis was established based on clinical and histopathological response to the gluten-free diet after 18 months of follow-up. RESULTS Fifty-one patients (35.9%) had enteropathy; 4 (2.8%) Marsh type 3b, 24 (16.9%) Marsh type 3a, 3 (2.1%) Marsh type 2, and 20 (14.1%) Marsh type 1. A positive serology result was extremely low (6.7%) in mild enteropathy (Marsh type 1-3a) in contrast with Marsh type 3b patients (50%). Most patients with enteropathy had positive HLA DQ2 or -DQ8 genotyping (84.1%). Out of the 37 patients who started a gluten-free diet, 34 (91.9%) improved their symptoms, and 28 of 32 (87.5%) had a histopathological or serological response. A final GSE diagnosis was established in 28 of the 142 patients (19.7%). CONCLUSION Gluten-sensitive enteropathy can be a frequent and unsuspected cause of dysmotility-like dyspepsia.
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Affiliation(s)
- Santos Santolaria
- Department of Gastroenterology and Hepatology, Hospital San Jorge, Huesca, Spain.
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Alencar ML, Ortiz-Agostinho CL, Nishitokukado L, Damião AOMC, Abrantes-Lemos CP, Leite AZDA, Brito TD, Chamone DDAF, Silva MERD, Giannella-Neto D, Sipahi AM. Prevalence of celiac disease among blood donors in São Paulo: the most populated city in Brazil. Clinics (Sao Paulo) 2012; 67:1013-8. [PMID: 23018296 PMCID: PMC3438239 DOI: 10.6061/clinics/2012(09)05] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 04/25/2012] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE Celiac disease is a permanent enteropathy caused by the ingestion of gluten, which leads to an immunemediated inflammation of the small intestine mucosa. The prevalence of celiac disease varies among different nations and ethnic backgrounds, and its diversity is determined by genetic and environmental factors. São Paulo city is one of the largest cities in the world, with a vast population and an important history of internal migratory flow from other Brazilian regions, as well as immigration from other, primarily European, countries, resulting in significant miscegenation. The aim of the present study was to estimate the prevalence of adults with undiagnosed celiac disease among blood donors of São Paulo by collecting information on the ancestry of the population studied. METHODS The prevalence of celiac disease was assessed by screening for positive IgA transglutaminase and IgA endomysium antibodies in 4,000 donors (volunteers) in the Fundação Pró-Sangue Blood Center of São Paulo, São Paulo, Brazil. The antibody-positive subjects were asked to undergo a small bowel biopsy. RESULTS Of the 4,000 subjects, twenty-four had positive tests, although both antibody tests were not always concordant. For example, ten subjects were positive for IgA tissue transglutaminase only. In twenty-one positive patients, duodenal biopsies were performed, and the diagnosis of celiac disease was confirmed in fourteen patients (Marsh criteria modified by Oberhuber). In this group, 67% claimed to have European ancestry, mainly from Italy, Portugal and Spain. CONCLUSION The prevalence of celiac disease is at least 1:286 among supposedly healthy blood bank volunteers in São Paulo, Brazil.
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Affiliation(s)
- Marília Lage Alencar
- Laboratorio de Gastroenterologia Clínica e Experimental - LIM 07, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
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Santolaria Piedrafita S, Fernández Bañares F. [Gluten-sensitive enteropathy and functional dyspepsia]. GASTROENTEROLOGIA Y HEPATOLOGIA 2011; 35:78-88. [PMID: 22177265 DOI: 10.1016/j.gastrohep.2011.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 10/19/2011] [Indexed: 01/12/2023]
Abstract
Gluten-sensitive enteropathy (GSE) is increasingly diagnosed in adults. The symptoms of this disease can overlap with those of functional dyspepsia. The prevalence of GSE in dyspepsia has been reported to be 1.2-6.2% and could be higher if the entire spectrum of lesions related to gluten sensitivity, including lymphocytic enteropathy, is considered. Patients with dyspepsia secondary to GSE could be mistakenly diagnosed with functional dyspepsia unless upper gastrointestinal endoscopy is completed with duodenal biopsy and immunostaining for intraepithelial lymphocytes. A missed diagnosis could have major consequences in terms of morbidity and mortality and quality of life. Consequently, endoscopic study of patients with dyspepsia should be completed by duodenal biopsy when there are symptoms suggestive of GSE.
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Erriu M, Sanna S, Nucaro A, Orrù G, Garau V, Montaldo C. HLA-DQB1 Haplotypes and their Relation to Oral Signs Linked to Celiac Disease Diagnosis. Open Dent J 2011; 5:174-8. [PMID: 22135701 PMCID: PMC3227877 DOI: 10.2174/1874210601105010174] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 08/22/2011] [Accepted: 08/30/2011] [Indexed: 01/06/2023] Open
Abstract
Objectives: Celiac disease (CD) is an autoimmune disorder that can be divided into typical and atypical forms. Atypical forms can show extraintestinal manifestations among which oral signs are very frequent. Considering that the pathogenesis of CD is related to a positivity to specific HLA-DQB1 haplotypes, we tested whether the presence of the HLA-DQB1*02 allele could be a hypothetical cause of the development of oral manifestations. Subjects and Methods: For this study was been examined the oral condition of 98 Sardinian patients, all affected by CD and all on a gluten-free diet for at least 1 year. Then was been determined each patient’s HLA-DQB1 haplotype and compared these results with clinical information. Results: The statistical analysis evidenced that the absence of the HLA-DQB1*02 allele predisposes to oral manifestations such as dental enamel defects (DED) and recurrent aphthous stomatitis (RAS) (Pvalue=5.98x10-05, OR = 0.23, CI: (0.10 - 0.45) per each copy of the HLA allele). Conclusions: These results showed that the presence of the HLA-DQB1*02 allele influences the development of oral signs in a dose-dependent manner and also how the HLA haplotype connected to oral signs could have a fundamental role for the diagnosis of atypical forms of CD.
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Affiliation(s)
- Matteo Erriu
- Department of Surgery and Odontostomatological Sciences, University of Cagliari. Cagliari
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Mubarak A, Nikkels P, Houwen R, Ten Kate F. Reproducibility of the histological diagnosis of celiac disease. Scand J Gastroenterol 2011; 46:1065-73. [PMID: 21668407 DOI: 10.3109/00365521.2011.589471] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE A small intestinal biopsy is considered to be the gold standard for the diagnosis of celiac disease (CD). However, the assessment of small intestinal histology may vary between pathologists. Our aim was, therefore, to determine the interobserver variability in the histological diagnosis of CD. MATERIAL AND METHODS Biopsy specimens of 297 pediatric patients suspected of having CD were revised by a single experienced pathologist and compared to the original reports. Mucosal changes were scored using the Marsh classification. In patients with a discrepancy in diagnosis, clinical and serological data were used to determine the most probable diagnosis. RESULTS Although the interobserver variability for the Marsh classification was found to be moderate with a Kappa value of 0.486, the Kappa value for the diagnosis reached an almost perfect agreement (0.850). Nevertheless, in 22 patients a different diagnosis was made by the second observer. Interestingly, in this subgroup relatively more biopsies were classified to be of suboptimal quality. Based on clinical presentation, serology and follow-up, 19 of those patients truly had CD. In 14 of them the diagnosis was originally missed by the first observer while five cases were under-diagnosed by the second pathologist. CONCLUSIONS CD can be missed histologically due to assessment variation between pathologists. A final diagnosis of CD should be based on histology, serology as well as response to the diet.
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Affiliation(s)
- Amani Mubarak
- Department of Pediatric Gastroenterology, Wilhelmina Children's hospital/University Medical Center Utrecht, Utrecht, The Netherlands.
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HLA-DQ genotyping combined with serological markers for the diagnosis of celiac disease: is intestinal biopsy still mandatory? J Pediatr Gastroenterol Nutr 2011; 52:729-33. [PMID: 21593645 DOI: 10.1097/mpg.0b013e31820a724d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the value of HLA-DQ2/DQ8 allelic genotyping combined with serologic testing for the diagnosis of celiac disease (CD). PATIENTS AND METHODS One hundred seventy children, who underwent jejunal biopsy for digestive symptoms or malnutrition, were tested for HLA-DQ2/DQ8 and serologic markers (tTG and/or anti-endomysial antibodies). Children were classified in 2 groups, according to jejunal histology: group 1, when partial or total villous atrophy was associated with an increased intraepithelial lymphocytosis suggesting CD, and group 2, when these histological criteria were absent. RESULTS Eight children were excluded from the study because their intestinal histology was not informative; 82 children were classified in group 1 and 80 in group 2. Eighty-one of 82 children in group 1 were positive for HLA and serologic testing. The other child had negative HLA and serologic testing but marked villous atrophy, and further investigation showed an allergic disease. Among the 80 children in group 2, 53 were negative for both HLA and serologic testing, 22 were positive for HLA but negative for serologic testing, 2 were negative for HLA and positive for serologic testing, and 3 patients were positive for both HLA and serologic testing. The last 3 children were shown to have an autoimmune background and had probably a latent form of CD. The association of HLA-DQ2/DQ8 and serologic markers had a sensitivity of 98.8%, a specificity of 96.2%, a positive likelihood ratio of 26.3, and a negative likelihood ratio of 0.013. CONCLUSIONS The association of positive HLA-DQ2/DQ8 and serologic testing has a high predictive value for CD. We suggest that symptomatic children with high titers of immunoglobulin (Ig)A tTG could be diagnosed as patients with CD without performing jejunal biopsy. In other children, HLA-DQ2/DQ8 could be useful to exclude the diagnosis of CD if negative. In cases of low IgA tTG titers or in patients with IgA deficiency, intestinal biopsy remains mandatory.
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Vereckei E, Szodoray P, Poor G, Kiss E. Genetic and immunological processes in the pathomechanism of gluten-sensitive enteropathy and associated metabolic bone disorders. Autoimmun Rev 2011; 10:336-40. [DOI: 10.1016/j.autrev.2010.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Accepted: 12/07/2010] [Indexed: 10/18/2022]
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Leonardi S, Spina M, Spicuzza L, Rotolo N, La Rosa M. Hepatitis B vaccination failure in celiac disease: Is there a need to reassess current immunization strategies? Vaccine 2009; 27:6030-3. [DOI: 10.1016/j.vaccine.2009.07.099] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Revised: 07/11/2009] [Accepted: 07/22/2009] [Indexed: 12/14/2022]
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Frost AR, Band MM, Conway GS. Serological screening for coeliac disease in adults with Turner's syndrome: prevalence and clinical significance of endomysium antibody positivity. Eur J Endocrinol 2009; 160:675-9. [PMID: 19208776 DOI: 10.1530/eje-08-0846] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To investigate the prevalence of coeliac disease (CD) in an adult population with Turner's syndrome (TS). Design A clinic population with TS was screened using a serological test for CD. METHODS Two hundred and fifty six patients with TS were included in the study. Five patients had existing diagnoses of CD. The remaining 251 asymptomatic patients were screened using an IgA endomysium antibody (EMA) test. Positive cases were offered endoscopy with duodenal biopsy. HLA typing was undertaken in existing cases and new EMA-positive cases. RESULTS Of the 251 patients screened, eight were found to be EMA positive (3.2%). Seven patients proceeded to duodenal biopsy on which all were confirmed histologically to have cluster of differentiation (2.8%). The prevalence of subclinical cluster of differentiation in the population can therefore be estimated between 2.8 and 3.2%. The total population prevalence of CD, including the previously diagnosed cases, is estimated between 4.7 and 5.1%. Ten patients with histologically confirmed cluster of differentiation underwent HLA typing of which eight were HLA-DQ2 positive, one was HLA-DQ8 positive and one was negative to both HLA-DQ2 and HLA-DQ8. CONCLUSIONS This study demonstrates an increased prevalence of cluster of differentiation in an adult population with TS over the general population. This is consistent with previous data published in paediatric populations.
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Affiliation(s)
- Amy R Frost
- Department of Endocrinology, University College Hospital, London, UK
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Cassinotti A, Birindelli S, Clerici M, Trabattoni D, Lazzaroni M, Ardizzone S, Colombo R, Rossi E, Porro GB. HLA and autoimmune digestive disease: a clinically oriented review for gastroenterologists. Am J Gastroenterol 2009; 104:195-217; quiz 194, 218. [PMID: 19098870 DOI: 10.1038/ajg.2008.10] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The human leukocyte antigen (HLA) system includes genes involved in graft-vs-host rejection and in immune response. The discovery that HLAs are associated with several diseases led to appealing developments both in basic biomedical research and in clinical medicine, and offered the opportunity to improve the understanding of pathogenesis and classification of diseases, as well as to provide diagnostic and prognostic indicators. The aim of this article is to review the association between HLA alleles and autoimmune digestive disease and its current relationship with modern HLA nomenclature and clinical practice. METHODS Articles dealing with the association between HLAs and autoimmune digestive disease (including celiac disease, inflammatory bowel disease, autoimmune hepatitis, sclerosing cholangitis and primary biliary cirrhosis) were searched for using Pubmed and SCOPUS databases from earliest records to January 2008. RESULTS The review has provided two sections. In the first, we explain the basic principles of HLA structure, function, and nomenclature, as an introduction to the second section, which describes current associations between HLA alleles and digestive diseases. The clinical implications of each HLA association are critically discussed. Actually, a clinical role for HLA typing is suggested for only a few conditions, e.g., celiac disease. CONCLUSIONS The knowledge of current HLA nomenclature and of its association with some digestive diseases such as celiac disease can be useful in clinical practice for diagnostic and prognostic purposes. This can avoid improper HLA typing as well as stressing the need for further studies on other possible clinical applications.
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Affiliation(s)
- Andrea Cassinotti
- Department of Clinical Science, Division of Gastroenterology, L. Sacco University Hospital, via G.B.Grassi 74, Milan, Italy.
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Nemes E, Lefler E, Szegedi L, Kapitány A, Kovács JB, Balogh M, Szabados K, Tumpek J, Sipka S, Korponay-Szabó IR. Gluten intake interferes with the humoral immune response to recombinant hepatitis B vaccine in patients with celiac disease. Pediatrics 2008; 121:e1570-6. [PMID: 18519462 DOI: 10.1542/peds.2007-2446] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Patients with celiac disease, who often carry human leukocyte antigen-DR3;DQ2, are prone to inadequate response to hepatitis B immunization. We evaluated vaccine response in relation to disease activity and whether previous treatment with a gluten-free diet influences the achievement of protective antibody titers. PATIENTS AND METHODS We studied 128 children and adolescents with celiac disease and 113 age-matched control subjects. Twenty-two patients with celiac disease were prospectively immunized after diagnosis during dietary treatment (group 1). A total of 106 (group 2) and the control subjects received vaccination by mass immunization in schools at 14 years of age regardless of diet status and when celiac disease was still undiagnosed in 27 of these children. Diet compliance and celiac disease activity were monitored by measurement of antibodies against transglutaminase and endomysium. Vaccine response was determined by measuring antihepatitis B antibodies from serum. RESULTS The seroconversion after hepatitis B vaccination was 95.5% in group 1. All of these patients carried human leukocyte antigen DQ2. The response rate in group 2 was 50.9% and correlated with gluten intake (untreated patients: 25.9%, non-strict diet: 44.4%, strict diet: 61.4%). Treated and compliant patients did not significantly differ from control subjects (75.2%). Thirty-seven antihepatitis B-negative patients with celiac disease received a booster during a controlled gluten-free diet, and 36 (97.3%) seroconverted, irrespective of the presence of human leukocyte antigen DQ2. CONCLUSIONS Nonresponse to recombinant hepatitis B surface antigen may be a sign of undiagnosed celiac disease. However, there is a good vaccine response in adequately treated patients. Human leukocyte antigen DQ alleles do not seem to have a primary role. Revaccination is recommended during a controlled gluten-free diet.
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Affiliation(s)
- Eva Nemes
- Department of Pediatrics, Medical and Health Science Center, University of Debrecen, Nagyerdei krt 98, H-4032 Debrecen, Hungary.
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Abstract
BACKGROUND AND OBJECTIVE Celiac disease (CD) is believed to be a permanent intolerance to gluten. A number of patients, however, discontinue the gluten-free diet (GFD) without developing symptoms or signs. The aim of our study was to investigate whether CD patients are capable of developing tolerance to gluten. METHODS All 77 adult patients from our hospital known to have biopsy-proven CD for more than 10 years were invited to participate. We investigated symptoms, gluten consumption, antibodies for CD and other autoimmunity, human leukocyte antigen (HLA)-typing, bone mineral density, and performed small bowel biopsies. Tolerance was defined as no immunological or histological signs of CD while consuming gluten. RESULTS Sixty-six patients accepted participation, but after review of the diagnostic biopsies 53 were found to have true CD. Twenty-three percent of patients had a gluten-containing diet, 15% admitted gluten transgression and 62% followed the GFD. Patients on a GFD had significantly more osteoporosis. Normal small bowel mucosa was found in four of eight on gluten-containing diet and in four of four with gluten transgression. Two patients were considered to have developed tolerance to gluten. One of them was HLA-DQ2/DQ8 negative. CONCLUSION Development of tolerance to gluten seems possible in some patients with CD. Further follow-up will show whether this tolerance is permanent or only a long-term return to latency. This feature may be associated with genetic characteristics, especially with HLA genotypes that differ from DQ2 or DQ8. More insight into the mechanisms of the development of gluten tolerance may help to distinguish those CD patients that might not require life-long GFD.
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Papp M, Foldi I, Nemes E, Udvardy M, Harsfalvi J, Altorjay I, Mate I, Dinya T, Varvolgyi C, Barta Z, Veres G, Lakatos PL, Tumpek J, Toth L, Szathmari E, Kapitany A, Gyetvai A, Korponay-Szabo IR. Haptoglobin polymorphism: a novel genetic risk factor for celiac disease development and its clinical manifestations. Clin Chem 2008; 54:697-704. [PMID: 18258668 DOI: 10.1373/clinchem.2007.098780] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Haptoglobin (Hp) alpha-chain alleles 1 and 2 account for 3 phenotypes that may influence the course of inflammatory diseases via biologically important differences in their antioxidant, scavenging, and immunomodulatory properties. Hp1-1 genotype results in the production of small dimeric, Hp2-1 linear, and Hp2-2 cyclic polymeric haptoglobin molecules. We investigated the haptoglobin polymorphism in patients with celiac disease and its possible association to the presenting symptoms. METHODS We studied 712 unrelated, biopsy-proven Hungarian celiac patients (357 children, 355 adults; severe malabsorption 32.9%, minor gastrointestinal symptoms 22.8%, iron deficiency anemia 9.4%, dermatitis herpetiformis 15.6%, silent disease 7.2%, other 12.1%) and 384 healthy subjects. We determined haptoglobin phenotypes by gel electrophoresis and assigned corresponding genotypes. RESULTS Hp2-1 was associated with a significant risk for celiac disease (P = 0.0006, odds ratio [OR] 1.54, 95% CI 1.20-1.98; prevalence 56.9% in patients vs 46.1% in controls). It was also overrepresented among patients with mild symptoms (69.2%) or silent disease (72.5%). Hp2-2 was less frequent in patients than in controls (P = 0.0023), but patients having this phenotype were at an increased risk for severe malabsorption (OR 2.21, 95% CI 1.60-3.07) and accounted for 45.3% of all malabsorption cases. Celiac and dermatitis herpetiformis patients showed similar haptoglobin phenotype distributions. CONCLUSIONS The haptoglobin polymorphism is associated with susceptibility to celiac disease and its clinical presentations. The predominant genotype in the celiac population was Hp2-1, but Hp2-2 predisposed to a more severe clinical course. The phenotype-dependent effect of haptoglobin may result from the molecule's structural and functional properties.
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Affiliation(s)
- Maria Papp
- Second Department of Medicine, University of Debrecen, Debrecen, Hungary.
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