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Abu Shtaya A, Orenstein N, Bazak L, Lidzbarsky G, Kalis ML, Amarilyo G, Sofrin-Drucker E, Jaron R, Shahar NR, Gilad NK, Basel-Salmon L. High frequency of MEFV disease-causing variants in children with very-early-onset inflammatory bowel disease. Pediatr Res 2024:10.1038/s41390-024-03242-z. [PMID: 38734812 DOI: 10.1038/s41390-024-03242-z] [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] [Received: 10/03/2023] [Revised: 02/06/2024] [Accepted: 03/15/2024] [Indexed: 05/13/2024]
Abstract
BACKGROUND Biological similarities between inflammatory bowel disease (IBD) and familial Mediterranean fever (FMF) have been described in humans and animal models suggesting a possible common genetic basis. FMF is caused by variants in the MEFV gene which encodes pyrin, an immune regulator. This study aimed to investigate the carrier rate of disease-causing MEFV variants in children of different ethnicities diagnosed with very-early-onset IBD (VEO-IBD). METHODS The study included 23 children diagnosed with VEO-IBD who had undergone whole exome sequencing. The exomes were evaluated for MEFV monoallelic and biallelic disease-causing variants and compared to exome sequencing data of 250 probands with suspected monogenic diseases other than IBD. RESULTS Of the 23 children diagnosed with VEO-IBD, 12 (52%) were carriers of at least one MEFV disease-causing variant, which was threefold higher than in individuals without IBD. The most frequent variants identified were p.M694V and p.E148Q (42% each). The allelic frequency of MEFV variants was found to be higher across the VEO-IBD group in 13 of 14 ethnicities compared to the control group. CONCLUSION The study suggests that disease-causing variants in the MEFV gene should be sought in cases of VEO-IBD. However, the clinical importance of this finding is yet to be defined. IMPACT There are biological similarities between inflammatory bowel disease and familial Mediterranean fever, suggesting a possible genetic relationship. Children less than 6 years old clinically diagnosed with inflammatory bowel disease have a threefold higher rate of disease-causing variants in the MEFV gene than controls. Monogenic testing in children with very-early-onset inflammatory bowel disease should include a search for MEFV variants.
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Affiliation(s)
- Aasem Abu Shtaya
- Recanati Genetic Institute, Rabin Medical Center-Beilinson Hospital, Petach Tikva, Israel.
- Unit of Gastroenterology, Carmel Medical Center, Haifa, Israel.
| | - Naama Orenstein
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lily Bazak
- Recanati Genetic Institute, Rabin Medical Center-Beilinson Hospital, Petach Tikva, Israel
| | - Gabriel Lidzbarsky
- Recanati Genetic Institute, Rabin Medical Center-Beilinson Hospital, Petach Tikva, Israel
| | - Marina Lifshitc Kalis
- Recanati Genetic Institute, Rabin Medical Center-Beilinson Hospital, Petach Tikva, Israel
| | - Gil Amarilyo
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Rheumatology Department, Schneider Children's Medical Centre, Petach Tikvah, Israel
| | - Efrat Sofrin-Drucker
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ranit Jaron
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | - Noa Ruhrman Shahar
- Recanati Genetic Institute, Rabin Medical Center-Beilinson Hospital, Petach Tikva, Israel
| | - Nesia Kropach Gilad
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lina Basel-Salmon
- Recanati Genetic Institute, Rabin Medical Center-Beilinson Hospital, Petach Tikva, Israel
- Pediatric Genetics Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Felsenstein Medical Research Center, Petach Tikva, Israel
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Amaryan G, Sarkisian T, Tadevosyan A, Braegger C. Familial Mediterranean fever in Armenian children with inflammatory bowel disease. Front Pediatr 2024; 11:1288523. [PMID: 38410520 PMCID: PMC10895960 DOI: 10.3389/fped.2023.1288523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/27/2023] [Indexed: 02/28/2024] Open
Abstract
Inflammatory bowel disease (IBD) and familial Mediterranean fever (FMF) are inflammatory diseases with complex interactions among genetic, immune, and environmental factors. FMF is a monogenic autoinflammatory disease, characterized by recurrent febrile attacks and polyserositis, and is manifested mainly in childhood. FMF is widespread in Armenia. There are reports on the concurrent occurrence of FMF and IBD. MEFV gene mutations may have a disease-modifying effect on IBD. We have investigated the frequency of MEFV mutations and FMF in Armenian children with IBD and their influence on the clinical course. A total of 69 untreated IBD patients under 18 years of age were enrolled: 52.1% (36) had ulcerative colitis (UC), 21.7% (15) had Crohn's disease (CD), and 26.0% (18) had unclassified colitis (IBD-U). The frequency of FMF among them was 36.2% (25/69), and MEFV mutations were identified in 53.6% (37/69). The highest rate of MEFV mutations and FMF was in UC patients (61.1% and 41.6% respectively). In all, 56.7% (21/37) of IBD patients with MEFV mutations had M694V mutated alleles, mainly in compound heterozygous and heterozygous states. There were no associations in the group of IBD patients with coexisting FMF (25), either between any MEFV mutation and type of IBD or coexistence of FMF. Overall, 36.0% (9/25) of them developed VEO IBD and carried mainly the M694V mutation. We concluded that the carrier frequency of MEFV mutations among Armenian pediatric IBD patients was rather high (53.6%), especially for UC. It was suggested that the MEFV gene is not necessarily a susceptibility gene but most likely modifies the course of IBD. MEFV genetic testing was recommended for Armenian pediatric IBD patients, especially for VEO UC and IBD-U, atypical IBD course, or resistance to the conventional treatment. They should also be asked for isolated febrile attacks, recurrent arthritis, and family history, even in the absence of FMF typical symptoms, to rule out FMF and its complications.
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Affiliation(s)
- Gayane Amaryan
- National Pediatrics Center for Familial Mediterranean Fever, “Arabkir” Medical Complex-Institute of Child and Adolescent Health, Yerevan, Armenia
- Department of Pediatrics, Yerevan State Medical University, Yerevan, Armenia
| | - Tamara Sarkisian
- Center of Medical Genetics and Primary Health Care, Yerevan, Armenia
- Department of Medical Genetics, Yerevan State Medical University, Yerevan, Armenia
| | - Artashes Tadevosyan
- Department of Public Health and Health Care Organization, Yerevan State Medical University, Yerevan, Armenia
| | - Christian Braegger
- Nutrition Research Unit, Children’s University Hospital in Zürich, Zürich, Switzerland
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3
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Kilincalp S, Yuksel I. The Influence of Coexisting Familial Mediterranean Fever on Crohn's Disease: Data From an FMF Endemic Area. J Clin Gastroenterol 2024; 58:71-75. [PMID: 36730654 DOI: 10.1097/mcg.0000000000001798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/09/2022] [Indexed: 02/04/2023]
Abstract
GOAL The goal of this study was to evaluate the impact of coexisting familial Mediterranean fever (FMF) on Crohn's disease (CD) patients' phenotype and disease course in an endemic region for FMF. BACKGROUND CD and FMF are inflammatory diseases characterized by recurrent abdominal pain and fever attacks. The impact of coexisting FMF on CD patients' phenotype and disease course is currently unknown. MATERIALS AND METHODS We reviewed the medical records of 210 adult CD patients who were regularly followed up at a tertiary gastroenterology clinic between November 2006 and April 2018. The patients were divided into FMF positive (CD-FMF) and FMF negative (CD-control) groups. The severity of CD was assessed by the rate of hospitalization because of CD, the need for biological therapy, and whether surgery was performed for CD. RESULTS Eight (3.8%) of 210 CD patients have concomitant FMF, which is 35 to 40 times higher than expected in an endemic region for FMF. Baseline demographic parameters, location/behavior of the CD, and initial therapeutic regimens were similar between the 2 groups. The prevalence of peripheral arthritis was significantly higher in CD-FMF group (37.5% vs. 10.4%, respectively, P =0.04). A significantly greater proportion of the CD-FMF patients had received biological therapy (50% vs. 11.9%; P =0.012). Steroid dependence and CD-related hospitalization rates in the CD-FMF group were relatively higher but were not statistically significant (37.5% vs. 15.3 and 62.5% vs. 41.1%). CONCLUSIONS Our findings indicate that the disease course of CD tends to be more severe in patients with coexisting FMF.
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Affiliation(s)
- Serta Kilincalp
- Department of Gastroenterology, Gothenburg University, Ostra Hospital, Gothenburg, Sweden
| | - Ilhami Yuksel
- Department of Gastroenterology, Yildirim Beyazit University School of Medicine, Ankara, Turkey
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4
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Karakas HD, Kuloglu Z, Aydin F, Ozdemir S, Avar-Aydin PO, Tuna Kirsaclioglu C, Cakar N, Ozcakar ZB. Evaluation of Gastrointestinal System Complaints and Comorbidities in Pediatric Familial Mediterranean Fever Patients. J Clin Rheumatol 2023; 29:375-380. [PMID: 37723615 DOI: 10.1097/rhu.0000000000002027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
OBJECTIVE Familial Mediterranean fever (FMF) is the most prevalent hereditary autoinflammatory disease among children. Abdominal pain and various gastrointestinal system (GIS) manifestations may arise directly from FMF or concomitantly with FMF. This study aimed to evaluate GIS complaints and findings other than classic peritonitis attacks in patients with FMF and to interpret concomitant GIS and hepatic disorders in these patients. METHODS The medical and genetic findings of patients with FMF who attended our clinic between December 2011 and December 2021 were reviewed. Gastrointestinal system symptoms, liver function tests, abdominal images, and endoscopic and histopathological data were extracted from medical records. RESULTS A total of 576 pediatric patients (female, 52.3%) diagnosed with FMF were included. Among them, almost one-fifth displayed GIS complaints, such as abdominal pain, defecation problems, and dyspepsia, distinct from typical FMF attacks. High serum aminotransferase levels were detected in 18.4% of the patients, with viral infections being the most common cause of moderate/severe hypertransaminasemia. In addition, during follow-up, 26.9% of them were referred to the pediatric gastroenterology department. At least 1 gastroenterological and hepatobiliary disorder was detected in 17.5% of the patients because of organic and functional GIS disorders or hepatobiliary disorders, such as gastroesophageal reflux disease, esophagitis, functional dyspepsia, and inflammatory bowel diseases. CONCLUSION Various GIS and hepatic disorders can be encountered in children with FMF. The spectrum of these complaints and pathologies can range from frequently observed health problems to more severe diseases.
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Affiliation(s)
| | - Zarife Kuloglu
- Pediatric Gastroenterology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Fatma Aydin
- From the Departments of Pediatric Rheumatology
| | - Serpil Ozdemir
- Pediatric Gastroenterology, Ankara University Faculty of Medicine, Ankara, Turkey
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Peng XP, Al-Ddafari MS, Caballero-Oteyza A, El Mezouar C, Mrovecova P, Dib SE, Massen Z, Smahi MCE, Faiza A, Hassaïne RT, Lefranc G, Aribi M, Grimbacher B. Next generation sequencing (NGS)-based approach to diagnosing Algerian patients with suspected inborn errors of immunity (IEIs). Clin Immunol 2023; 256:109758. [PMID: 37678716 DOI: 10.1016/j.clim.2023.109758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/23/2023] [Accepted: 09/02/2023] [Indexed: 09/09/2023]
Abstract
The advent of next-generation sequencing (NGS) technologies has greatly expanded our understanding of both the clinical spectra and genetic landscape of inborn errors of immunity (IEIs). Endogamous populations may be enriched for unique, ancestry-specific disease-causing variants, a consideration that significantly impacts molecular testing and analysis strategies. Herein, we report on the application of a 2-step NGS-based testing approach beginning with targeted gene panels (TGPs) tailored to specific IEI subtypes and reflexing to whole exome sequencing (WES) if negative for Northwest Algerian patients with suspected IEIs. Our overall diagnostic yield of 57% is comparable to others broadly applying short-read NGS to IEI detection, but data from our localized cohort show some similarities and differences from NGS studies performed on larger regional IEI cohorts. This suggests the importance of tailoring diagnostic strategies to local demographics and needs, but also highlights ongoing concerns inherent to the application of genomics for clinical IEI diagnostics.
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Affiliation(s)
- Xiao P Peng
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany; Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America.
| | - Moudjahed Saleh Al-Ddafari
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria; Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany
| | - Andres Caballero-Oteyza
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany; RESIST - Cluster of Excellence 2155 to Hanover Medical School, Satellite Center Freiburg, Germany
| | - Chahrazed El Mezouar
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria; Pediatric Department, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Algeria
| | - Pavla Mrovecova
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany
| | - Saad Eddin Dib
- Pediatric Department, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Algeria
| | - Zoheir Massen
- Pediatric Department, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Algeria
| | - Mohammed Chems-Eddine Smahi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria; Specialized Mother-Child Hospital of Tlemcen, Department of Neonatology, Faculty of Medicine, University of Tlemcen, Algeria
| | - Alddafari Faiza
- Department of Internal Medicine, Medical Center University of Tlemcen, Faculty of Medicine, University of Tlemcen, Tlemcen, Algeria
| | | | - Gérard Lefranc
- Institute of Human Genetics, UMR 9002 CNRS-University of Montpellier, France
| | - Mourad Aribi
- Laboratory of Applied Molecular Biology and Immunology, W0414100, University of Tlemcen, Algeria.
| | - Bodo Grimbacher
- Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Germany; DZIF - German Center for Infection Research, Satellite Center Freiburg, Germany; CIBSS - Centre for Integrative Biological Signalling Studies, Albert-Ludwigs University, Freiburg, Germany; RESIST - Cluster of Excellence 2155 to Hanover Medical School, Satellite Center Freiburg, Germany.
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6
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Elgormus Y. Biomarkers and their Clinical Applications in Pediatrics. Biomark Med 2022. [DOI: 10.2174/9789815040463122010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Biomarker studies are becoming increasingly interesting for many fields of
medicine. The use of biomarkers in medicine is involved in detecting diseases and
supporting diagnosis and treatment decisions. New research and new discoveries on the
molecular basis of the disease show that there may be a number of promising new
biomarkers for use in daily clinical practice. Clinical trials in children lag behind adult
research both in quality and quantity. The number of biomarkers validated to optimize
pediatric patient management is limited. In the pathogenesis of many diseases, it should
not be extrapolated to the pediatric clinical setting, taking into account that biomarkers
that are effective in adults are clearly different in children and that ontogeny directly
affects disease development and therapeutic response in children. The search for ideal
biomarkers or markers that can make an early and definitive diagnosis in neonatal
sepsis is still ongoing. The ideal biomarker for pediatric diseases should be costeffective,
noninvasive, applicable to pediatric specific diseases, and its results should
correspond to age-related physiological changes. Lactate, troponin and B-type
natriuretic peptide are valuable biomarkers in the evaluation and management of
critically ill children with cardiac disease. Tumor markers in children are biochemical
substances used in the clinical treatment of pediatric tumors and to detect the presence
of cancer (regression or progression). In this chapter, current and brief information
about biomarkers and their clinical applications used in the diagnosis and monitoring of
pediatric diseases is presented.;
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Affiliation(s)
- Yusuf Elgormus
- Medicine Hospital,Department of Pediatric Health and Diseases,Department of Pediatric Health and Diseases, Medicine Hospital, Istanbul, Turkey,Istanbul,Turkey
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Kumei S, Ishioh M, Murakami Y, Ando K, Nozu T, Okumura T. A patient with familial Mediterranean fever mimicking diarrhea-dominant irritable bowel syndrome who successfully responded to treatment with colchicine: a case report. J Med Case Rep 2022; 16:247. [PMID: 35739566 PMCID: PMC9229427 DOI: 10.1186/s13256-022-03446-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 05/06/2022] [Indexed: 11/10/2022] Open
Abstract
Background Irritable bowel syndrome is a functional gastrointestinal disease. Visceral hypersensitivity is the most important pathophysiology in irritable bowel syndrome. Currently, diagnosis of irritable bowel syndrome is based on symptoms and exclusion of other organic diseases. Although the diagnosis of irritable bowel syndrome can be made based on the Rome IV criteria, one may speculate that complete exclusion of other organic diseases is not so easy, especially in cases uncontrolled with standard therapies. Case presentation We present herein a case of familial Mediterranean fever in a young Japanese patient who had been suffering from an irritable bowel syndrome-like clinical course. A 25-year-old Japanese male had been diagnosed as having diarrhea-predominant irritable bowel syndrome 5 years earlier. Unfortunately, standard therapies failed to improve irritable bowel syndrome symptoms. After careful medical history-taking, we understood that he had also experienced periodic fever since 10 years ago. Although no mutation was identified in the Mediterranean fever gene, not only periodic fever but abdominal symptoms improved completely after colchicine administration. He was therefore diagnosed as having familial Mediterranean fever and that the abdominal symptoms may be related to the disease. Conclusions Familial Mediterranean fever should be considered as a cause of irritable bowel syndrome-like symptoms.
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Affiliation(s)
- Shima Kumei
- Department of General Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Masatomo Ishioh
- Division of Metabolism, Systemic Bioscience, Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Yuki Murakami
- Division of Metabolism, Systemic Bioscience, Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Katsuyoshi Ando
- Division of Metabolism, Systemic Bioscience, Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Tsukasa Nozu
- Department of Regional Medicine and Education, Asahikawa Medical University, Asahikawa, Japan
| | - Toshikatsu Okumura
- Department of General Medicine, Asahikawa Medical University, Asahikawa, Japan. .,Division of Metabolism, Systemic Bioscience, Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan.
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Yao Q, Shen M, Gorevic P. NOD2 Versus MEFV: Differential Diagnosis of Yao Syndrome and Familial Mediterranean Fever. RHEUMATOLOGY AND IMMUNOLOGY RESEARCH 2021; 2:233-239. [PMID: 36467985 PMCID: PMC9524798 DOI: 10.2478/rir-2021-0032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/16/2021] [Indexed: 06/17/2023]
Abstract
OBJECTIVES Yao syndrome (YAOS, OMIM 617321) was formerly designated as nucleotide-binding oligomerization domain-containing protein-2 (NOD2)-associated autoinflammatory disease (NAID). This disorder shares similar clinical phenotypes with hereditary periodic fever syndromes (HPFS). This study aimed to compare YAOS with familial Mediterranean fever (FMF). METHODS In this retrospective study, electronic medical records of a case series of YAOS were reviewed and data were analyzed. All patients underwent genetic testing for periodic fever syndrome 6-gene panel. RESULTS A total of 6 cases were presented. These patients were initially thought to have MEditerranean FeVer (MEFV)-negative FMF and received treatment with colchicine. They were eventually diagnosed with YAOS. The differences between these diseases were illustrated. In addition, both MEFV and NOD2 mutations were detected in some patients and family members. Patients with carriage of both gene mutations may present with heterogeneous disease expression. A close correlation between phenotypes and genotypes is needed to make a diagnosis. CONCLUSIONS YAOS may mimic FMF. Molecular analysis should cover NOD2 whole gene sequencing to help distinguish these diseases. Both NOD2 and MEFV mutations may contribute to disease expression in an individual.
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Affiliation(s)
- Qingping Yao
- Department of Medicine, Division of Rheumatology, Allergy and Immunology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, USA
| | - Min Shen
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peter Gorevic
- Department of Rheumatology, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, USA
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Mediterranean fever gene-associated enterocolitis in an elderly Japanese woman. Clin J Gastroenterol 2021; 14:1661-1666. [PMID: 34427863 DOI: 10.1007/s12328-021-01497-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 07/31/2021] [Indexed: 10/20/2022]
Abstract
An 86-year-old woman was admitted to our hospital with anemia. She had never experienced symptoms of serositis. Colonoscopy revealed colitis with erosions and a friable mucosa. First, she was diagnosed with unclassified inflammatory bowel disease (IBD-U). We suspected familial Mediterranean fever as a differential diagnosis of IBD-U, and MEFV gene analysis showed heterozygosity for Exon2 R202Q. The patient was treated with colchicine 0.5 mg. After 4 months, a follow-up colonoscopy showed remarkable improvement of the mucosal inflammation throughout the entire colon. MEFV gene-associated enterocolitis responding to colchicine may be observed in patients with IBD-U and elucidating the role of MEFV gene mutations in intestinal inflammation is a future challenge.
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Alsharief AN, Laxer RM, Wang Q, Stimec J, Man C, Babyn P, Doria AS. Monogenic autoinflammatory diseases in children: single center experience with clinical, genetic, and imaging review. Insights Imaging 2020; 11:87. [PMID: 32737687 PMCID: PMC7394994 DOI: 10.1186/s13244-020-00889-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/26/2020] [Indexed: 12/16/2022] Open
Abstract
Purpose 1. To review the contemporary literature and present a list of the imaging findings for patients with autoinflammatory diseases from our hospital. All these patients are found to have a genetic mutation that is responsible for their disease. 2. To present follow-up imaging findings, when available, and correlate those with symptoms and type of treatment administered in approximately 40 patients with autoinflammatory diseases of a single tertiary pediatric health care center including familial Mediterranean fever, Cryopyrin-associated autoinflammatory syndrome, PAPA (pyogenic arthritis, pyoderma gangrenousum, and acne) syndrome, and more. These findings are related to disease progression, treatment response, or treatment-induced changes. Conclusion Autoinflammatory diseases are relatively rare entities that can affect any system of the body. Given the many nonspecific imaging features, awareness of these diseases and good communication with clinicians aid in reaching an accurate diagnosis.
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Affiliation(s)
- Alaa N Alsharief
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Canada. .,Medical Imaging Department, Ministry of National Guard Health Affairs, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City - Western Region, Old Makkah Road Kilo 24 1 Western, P.O. Box 9515, Jeddah, 21423, Saudi Arabia.
| | - Ronald M Laxer
- Department of Paediatric, Division of Rheumatology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Qiuyan Wang
- York Radiology Consultants, Toronto, ON, Canada
| | - Jennifer Stimec
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Carina Man
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Paul Babyn
- Department of Medical Imaging, Royal University Hospital, Saskatoon, SK, Canada
| | - Andrea S Doria
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Canada
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11
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Hints for Genetic and Clinical Differentiation of Adult-Onset Monogenic Autoinflammatory Diseases. Mediators Inflamm 2019; 2019:3293145. [PMID: 32082075 PMCID: PMC7012260 DOI: 10.1155/2019/3293145] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/16/2019] [Indexed: 12/16/2022] Open
Abstract
Monogenic autoinflammatory diseases (mAIDs) are inherited errors of innate immunity characterized by systemic inflammation recurring with variable frequency and involving the skin, serosal membranes, synovial membranes, joints, the gastrointestinal tube, and/or the central nervous system, with reactive amyloidosis as a potential severe long-term consequence. Although individually uncommon, all mAIDs set up an emerging chapter of internal medicine: recent findings have modified our knowledge regarding mAID pathophysiology and clarified that protean inflammatory symptoms can be variably associated with periodic fevers, depicting multiple specific conditions which usually start in childhood, such as familial Mediterranean fever, tumor necrosis factor receptor-associated periodic syndrome, cryopyrin-associated periodic syndrome, and mevalonate kinase deficiency. There are no evidence-based studies to establish which potential genotype analysis is the most appropriate in adult patients with clinical phenotypes suggestive of mAIDs. This review discusses genetic and clinical hints for an ideal diagnostic approach to mAIDs in adult patients, as their early identification is essential to prompt effective treatment and improve quality of life, and also highlights the most recent developments in the diagnostic work-up for the most frequent hereditary periodic febrile syndromes worldwide.
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12
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Li Z, Akar S, Yarkan H, Lee SK, Çetin P, Can G, Kenar G, Çapa F, Pamuk ON, Pehlivan Y, Cremin K, De Guzman E, Harris J, Wheeler L, Jamshidi A, Vojdanian M, Farhadi E, Ahmadzadeh N, Yüce Z, Dalkılıç E, Solmaz D, Akın B, Dönmez S, Sarı İ, Leo PJ, Kenna TJ, Önen F, Mahmoudi M, Brown MA, Akkoc N. Genome-wide association study in Turkish and Iranian populations identify rare familial Mediterranean fever gene (MEFV) polymorphisms associated with ankylosing spondylitis. PLoS Genet 2019; 15:e1008038. [PMID: 30946743 PMCID: PMC6467421 DOI: 10.1371/journal.pgen.1008038] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 04/16/2019] [Accepted: 02/20/2019] [Indexed: 12/17/2022] Open
Abstract
Ankylosing spondylitis (AS) is a highly heritable immune-mediated arthritis common in Turkish and Iranian populations. Familial Mediterranean Fever (FMF) is an autosomal recessive autoinflammatory disease most common in people of Mediterranean origin. MEFV, an FMF-associated gene, is also a candidate gene for AS. We aimed to identify AS susceptibility loci and also examine the association between MEFV and AS in Turkish and Iranian cohorts. We performed genome-wide association studies in 1001 Turkish AS patients and 1011 Turkish controls, and 479 Iranian AS patients and 830 Iranian controls. Serum IL-1β, IL-17 and IL-23 cytokine levels were quantified in Turkish samples. An association of major effect was observed with a novel rare coding variant in MEFV in the Turkish cohort (rs61752717, M694V, OR = 5.3, P = 7.63×10−12), Iranian cohort (OR = 2.9, P = 0.042), and combined dataset (OR = 5.1, P = 1.65×10−13). 99.6% of Turkish AS cases, and 96% of those carrying MEFV rs61752717 variants, did not have FMF. In Turkish subjects, the association of rs61752717 was particularly strong in HLA-B27-negative cases (OR = 7.8, P = 8.93×10−15), but also positive in HLA-B27-positive cases (OR = 4.3, P = 7.69×10−8). Serum IL-1β, IL-17 and IL-23 levels were higher in AS cases than controls. Among AS cases, serum IL-1β and IL-23 levels were increased in MEFV 694V carriers compared with non-carriers. Our data suggest that FMF and AS have overlapping aetiopathogenic mechanisms. Functionally important MEFV mutations, such as M694V, lead to dysregulated inflammasome function and excessive IL-1β function. As IL-1 inhibition is effective in FMF, AS cases carrying FMF-associated MEFV variants may benefit from such therapy. Ankylosing spondylitis (AS) is a highly heritable immune-mediated arthritis. To identify new genetic associations with AS, we performed genome-wide association studies in Turkish and Iranian AS patients and controls. We identified a novel rare coding MEFV variant associated with AS. Rare polymorphisms of MEFV, which encodes the protein pyrin, are known to cause Familial Mediterranean Fever (FMF), a monogenic, autosomal recessive, autoinflammatory disease which can be complicated by arthritis. 99.6% of Turkish AS cases, and 96% of those carrying the MEFV variant, did not have FMF, and the association with AS remains excluding cases with FMF. In Turkish subjects, the MEFV variant association was particularly strong in HLA-B27-negative cases, but also positive in HLA-B27-positive cases. This represents the first rare variant association with AS, and has the highest odds ratio for AS of any non-MHC reported hitherto, indicating a major effect on disease pathogenesis. We assessed serum cytokine levels in the cohort, and found that IL-1β, IL-17 and IL-23 levels were higher in AS cases. Furthermore, among AS cases, IL-1β and IL-23 levels were increased in MEFV variant carriers compared with non-carriers. This study has therapeutic implications; as IL-1 inhibition is effective in FMF, AS cases carrying FMF-associated MEFV variants may benefit from such therapy.
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Affiliation(s)
- Zhixiu Li
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Servet Akar
- Department of Internal Medicine, Division of Rheumatology, Izmir Katip Çelebi University School of Medicine, İzmir, Turkey
| | - Handan Yarkan
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Sau Kuen Lee
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Pınar Çetin
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Gerçek Can
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Gökce Kenar
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Fernur Çapa
- Department of Molecular Medicine, Dokuz Eylul University Health Sciences Institute, İzmir, Turkey
| | - Omer Nuri Pamuk
- Department of Internal Medicine, Division of Rheumatology, Trakya University Medical Faculty, Edirne, Turkey
| | - Yavuz Pehlivan
- Department of Rheumatology, School of Medicine, Uludağ University, Bursa, Turkey
| | - Katie Cremin
- The University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
| | - Erika De Guzman
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Jessica Harris
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Lawrie Wheeler
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Vojdanian
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Farhadi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nooshin Ahmadzadeh
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zeynep Yüce
- Department of Molecular Medicine, Dokuz Eylul University Health Sciences Institute, İzmir, Turkey
| | - Ediz Dalkılıç
- Department of Rheumatology, School of Medicine, Uludağ University, Bursa, Turkey
| | - Dilek Solmaz
- Department of Internal Medicine, Division of Rheumatology, Izmir Katip Çelebi University School of Medicine, İzmir, Turkey
| | - Berrin Akın
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Salim Dönmez
- Department of Internal Medicine, Division of Rheumatology, Trakya University Medical Faculty, Edirne, Turkey
| | - İsmail Sarı
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Paul J. Leo
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Tony J. Kenna
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
| | - Fatos Önen
- Department of Internal Medicine, Division of Rheumatology, Dokuz Eylul University, Faculty of Medicine, İzmir, Turkey
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Matthew A. Brown
- Translational Genomics Group, Institute of Health and Biomedical Innovation, Queensland University of Technology at Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia
- * E-mail:
| | - Nurullah Akkoc
- Department of Internal Medicine, Division of Rheumatology, Celal Bayar University, Manisa, Turkey
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The Role of Familial Mediterranean Fever Gene Mutation in Treatment of Infantile Colitis With Resistant Perianal Fistula. Arch Rheumatol 2019; 33:473-477. [PMID: 30874249 DOI: 10.5606/archrheumatol.2018.6741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 01/30/2018] [Indexed: 11/21/2022] Open
Abstract
Symptoms of infantile inflammatory bowel disease (I-IBD) can be life-threatening and associated with poor prognosis. The presence of Mediterranean fever (MEFV) gene mutations play an important role in treatment of I-IBD. In this article, we describe a case of I-IBD with a resistant fistula, in which remission occurred following colchicine therapy. The patient was a six-month-girl with complaints of bloody diarrhea and a perianal abscess of three months duration. Laboratory tests revealed elevated inflammatory parameters, hypoalbuminemia, and anemia. Results of repeated viral, bacterial and parasitic analyses were negative. Endoscopic and histopathological examinations confirmed a diagnosis of I-IBD. Although diarrhea episodes decreased following intensive conventional treatment with immunosuppressive therapy and anti-tumor necrosis factor, the perianal abscess and fistula did not resolve. Molecular genetic analysis to identify causes of infantile disease revealed the MEFV gene mutation. Thus, colchicine was added to the treatment regimen. Following treatment with colchicine, defecation returned to normal, and the fistula resolved. The MEFV gene mutation should be investigated in children with infantile colitis and resistant fistulas, particularly in Mediterranean countries. In patients with infantile colitis who have the MEFV gene mutation, colchicine treatment may be an alternative to intensive immunosuppressive therapy.
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Gucenmez OA, Kume T, Makay B, Babayigit O, Arslan N, Unsal E. Role of fecal calprotectin in the assessment of intestinal inflammation in children with familial Mediterranean fever. Int J Rheum Dis 2018; 21:1844-1848. [PMID: 30345692 DOI: 10.1111/1756-185x.13396] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 07/31/2018] [Accepted: 08/28/2018] [Indexed: 12/17/2022]
Abstract
AIM Familial Mediterranean fever (FMF) is the most common auto-inflammatory disease with recurrent fever and serositis episodes. In recent years, some cases with FMF were reported with gastrointestinal involvement without amyloidosis, vasculitis and inflammatory bowel disease (IBD). It is not yet known whether gastrointestinal involvement is a part of the disease or not. The aim of this study is to investigate the frequency of intestinal inflammation by using a noninvasive method, fecal calprotectin measurement, in pediatric FMF patients. METHOD Sixty-five FMF patients, 30 healthy controls and 11 patients with acute ulcerative colitis were included in the study. A standard survey inquiring gastrointestinal and other clinical symptoms was completed. The medications, MEFV mutations, whole blood count and C-reactive protein levels were recorded. Fecal calprotectin was studied with the enzyme-linked immunosorbent assay method from the feces samples of the all subjects. RESULTS None of the FMF patients had clinical signs of IBD. Fecal calprotectin levels of the FMF patients were found to be significantly higher than the healthy controls (174.8 ± 150.8 vs 52.9 ± 36.5, p < 0.001). Fecal calprotectin levels of the ulcerative colitis patients were significantly higher than the FMF patients (523.5 ± 183 vs 174.8 ± 150.8, p = 0.001). There was a correlation between fecal calprotectin levels and neutrophil/lymphocyte ratio (r = 0.324, p = 0.009). CONCLUSION Our results supported subclinical intestinal inflammation in pediatric FMF patients. Further studies are needed to clarify the reason for intestinal inflammation in FMF patients.
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Affiliation(s)
- Ozge Altug Gucenmez
- Division of Pediatric Rheumatology, Department of Pediatrics, Faculty of Medicine, Dokuz Eylul University, Balcova-Izmir, Turkey
| | - Tuncay Kume
- Department of Medical Biochemistry, Faculty of Medicine, Dokuz Eylul University, Balcova-Izmir, Turkey
| | - Balahan Makay
- Division of Pediatric Rheumatology, Department of Pediatrics, Faculty of Medicine, Dokuz Eylul University, Balcova-Izmir, Turkey
| | - Omur Babayigit
- Division of Pediatric Rheumatology, Department of Pediatrics, Faculty of Medicine, Dokuz Eylul University, Balcova-Izmir, Turkey
| | - Nur Arslan
- Division of Pediatric Gastroenterology, Department of Pediatrics, Faculty of Medicine, Dokuz Eylul University, Balcova-Izmir, Turkey
| | - Erbil Unsal
- Division of Pediatric Rheumatology, Department of Pediatrics, Faculty of Medicine, Dokuz Eylul University, Balcova-Izmir, Turkey
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The Influence of Concomitant Disorders on Disease Severity of Familial Mediterranean Fever in Children. Arch Rheumatol 2017; 33:282-287. [PMID: 30632526 DOI: 10.5606/archrheumatol.2018.6488] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 10/25/2017] [Indexed: 11/21/2022] Open
Abstract
Objectives This study aims to describe the effects of concomitant disorders on the course of familial Mediterranean fever (FMF) and the relevance of genotype on these associations. Patients and methods Files of 494 FMF patients (257 males, 237 females; mean age 12.8±1.94 years; range 1.6 to 23 years) were retrospectively examined. Age of diagnosis, sex, MEditerrenean FeVer mutations, colchicine dosage, disease severity score and concomitant diseases in FMF course were recorded. FMF diagnoses were based on Tel-Hashomer criteria and disease severity was determined by international severity scoring system for FMF. Patients were divided into two groups as M694V positives and M694V negatives. We compared the groups in terms of accompanying illnesses, MEditerrenean FeVer mutations, and disease severity scores among five concomitant diseases: juvenile idiopathic arthritis (JIA), asthma, Henoch- Schonlein purpura, periodic fever, aphthous stomatitis, pharyngitis and adenitis syndrome, and others. Results The mean age at diagnosis was 8.7±1.9 years. Eighty-five patients (17.2%) had accompanying diseases including JIA, asthma, periodic fever, aphthous stomatitis, pharyngitis and adenitis syndrome, and Henoch-Schonlein purpura. Mean disease severity scores were 2.4±1.1 in patients with only FMF and 3.0±1.5 in patients with concomitant disorders (p=0.001). Patients with concomitant JIA showed the highest severity scores (4.3±1.6). A statistically significant difference was found with one-way analysis of variance. Conclusion Our findings indicate that concomitant diseases, particularly JIA, influence FMF severity. Therefore, it may be beneficial to focus on diagnosis and treatment of comorbid inflammatory diseases, which may worsen the course of FMF.
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Neonatal ulcerative colitis associated with Familial Mediterranean fever: a case report. Rheumatol Int 2017; 38:137-140. [PMID: 29027576 DOI: 10.1007/s00296-017-3848-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 10/06/2017] [Indexed: 10/18/2022]
Abstract
Neonatal inflammatory bowel disease (IBD) is a subclass of very early onset IBD that includes children younger than 1 month. It is characterized by more colonic involvement and monogenetic etiology, resistance to classical anti-inflammatory/immunomodulatory treatments and associated with colitis in first-degree family members. Herein we report a 3 month-old girl who was admitted with bloody diarrhea since 10 days of age. Her symptoms persist despite diet elimination. She was diagnosed with neonatal ulcerative colitis (UC) based on clinical, laboratory and histopathological examination. But, she was unresponsive to the immunosuppressive therapy. On the follow-up, she was hospitalized for the high fever two times. Genetic analysis revealed homozygote M694 V mutation. Bloody diarrhea and other clinical findings were improved after colchicine therapy. Neonatal UC associated with Familial Mediterranean fever is an extremely rare condition and to the best of our knowledge our case is the first case in literature. Early diagnosis autoinflammatory disease may prevent complications related to unnecessary immunosuppressive drug usage and the risk of development of amyloidosis associated with autoinflammatory disorders.
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Manukyan G, Aminov R. Update on Pyrin Functions and Mechanisms of Familial Mediterranean Fever. Front Microbiol 2016; 7:456. [PMID: 27066000 PMCID: PMC4815028 DOI: 10.3389/fmicb.2016.00456] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/21/2016] [Indexed: 01/09/2023] Open
Abstract
Mutations in the MEFV gene, which encodes the protein named pyrin (also called marenostrin or TRIM20), are associated with the autoinflammatory disease familial Mediterranean fever (FMF). Recent genetic and immunologic studies uncovered novel functions of pyrin and raised several new questions in relation to FMF pathogenesis. The disease is clinically heterogeneous reflecting the complexity and multiplicity of pyrin functions. The main functions uncovered so far include its involvement in innate immune response such as the inflammasome assemblage and, as a part of the inflammasome, sensing intracellular danger signals, activation of mediators of inflammation, and resolution of inflammation by the autophagy of regulators of innate immunity. Based on these functions, the FMF-associated versions of pyrin confer a heightened sensitivity to a variety of intracellular danger signals and postpone the resolution of innate immune responses. It remains to be demonstrated, however, what kind of selective advantage the heterozygous carriage conferred in the past to be positively selected and maintained in populations from the Mediterranean basin.
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Affiliation(s)
- Gayane Manukyan
- Group of Molecular and Cellular Immunology, Institute of Molecular Biology, National Academy of Sciences Yerevan, Armenia
| | - Rustam Aminov
- School of Medicine and Dentistry, University of Aberdeen Aberdeen, UK
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Celiksoy MH, Ogur G, Yaman E, Abur U, Fazla S, Sancak R, Yildiran A. Could familial Mediterranean fever gene mutations be related to PFAPA syndrome? Pediatr Allergy Immunol 2016; 27:78-82. [PMID: 26360812 DOI: 10.1111/pai.12490] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/08/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND The cause and pathophysiology of PFAPA syndrome is unknown. The aim of this study was to determine all MEFV gene variants relevant to familial Mediterranean fever in children with PFAPA syndrome. METHODS All MEFV gene variants were analyzed in patients with PFAPA syndrome. All patients were evaluated using the Gaslini scoring system. Serum immunoglobulin levels were also determined upon admission. RESULTS We evaluated 64 patients with PFAPA syndrome. The median age at diagnosis was 37.5 (min-max: 6-96) months, and the percentage of male patients was 55.0%. The Gaslini diagnostic score for periodic fever was high in 81.0% of the patients. An MEFV gene mutation was found in 42 (66.0%) children. Mostly, heterozygous or compound heterozygous variants of the MEFV gene were found. Two patients were homozygous for R202Q. MEFV gene mutations were not detected in 22 (34.0%) patients. No significant differences in clinical or laboratory findings were observed between the two groups (p > 0.05), and there were no significant differences in period and duration of the fever episodes (p > 0.05). The fever of all 47 patients (100.0%) who received prednisolone during the episodes decreased within hours and did not recur. Eighteen of the patients using prednisolone underwent prophylaxis with colchicine, and the fever episodes of 9/18 (50.0%) patients using colchicine decreased within months. CONCLUSIONS Most patients presenting with PFAPA syndrome have heterozygous MEFV gene mutations. Whether carrying a heterozygous MEFV gene is the primary cause of this syndrome requires further investigation.
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Affiliation(s)
- Mehmet H Celiksoy
- Department of Pediatrics, Division of Pediatric Allergy and Immunology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Gonul Ogur
- Department of Genetic Disease, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Elif Yaman
- Department of Pediatrics, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Ummet Abur
- Department of Genetic Disease, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Semanur Fazla
- Department of Genetic Disease, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Recep Sancak
- Department of Pediatrics, Division of Pediatric Allergy and Immunology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
| | - Alisan Yildiran
- Department of Pediatrics, Division of Pediatric Allergy and Immunology, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
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Abstract
BACKGROUND This study was undertaken to evaluate demographics, clinical manifestations, laboratory findings and outcomes of children with inflammatory bowel disease (IBD) in Turkey. METHODS We analyzed the medical records of 127 children diagnosed with IBD (under 18 years old) between January 2004 and January 2012 in 8 pediatric gastroenterology centers. RESULTS Of the 127 patients, 90 (70.9%) suffered from ulcerative colitis (UC), 29 (22.8%) from Crohn's disease (CD), and 8 (6.3%) from IBD unclassified. The mean age of the 127 patients was 11.6 ± 4.1 years, and 11.8% of the patients were below 5 years old. Of the patients, 49.6% were male, and males were more predominant in patients with CD than in those with UC (72.4% vs. 42.2%, P = 0.008; a male/female ratio of 2.62 in CD, P = 0.0016). Approximately one fifth of the patients had extra-intestinal manifestations and 13.3% of the patients had associated diseases. Extraintestinal manifestations and associated diseases were more common in early onset disease [P = 0.017, odds ratio (OR) = 4.02; P = 0.03, OR = 4.1]. Of the patients, 15% had normal laboratory parameters including anemia, high platelet count, hypoalbuminemia, hypoferritinemia, and high sedimentation rate. Area under receiver operation characteristics was used to predict pancolitis in patients with UC. The values of C-reactive protein, sedimentation rate and pediatric ulcerative colitis activity were 0.61 (P = 0.06), 0.66 (P = 0.01) and 0.76 (P = 0.0001), respectively. Four (4.4%) patients with UC underwent colectomy, and finally two (1.5%, 95% confidence interval: 0-3.7%) patients died from primary disease or complications. CONCLUSIONS IBD is an increasing clinical entity in Turkey. Features of IBD are similar to those in other populations, but prospective multicenter studies are needed to analyze the true incidence of IBD in Turkish children.
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Non-canonical manifestations of familial Mediterranean fever: a changing paradigm. Clin Rheumatol 2015; 34:1503-11. [PMID: 25761640 DOI: 10.1007/s10067-015-2916-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Accepted: 03/01/2015] [Indexed: 01/04/2023]
Abstract
Paroxysmal crises of fever and systemic inflammation herald familial Mediterranean fever (FMF), considered as the archetype of all inherited systemic autoinflammatory diseases. Inflammatory bouts are characterized by short-term and self-limited abdominal, thoracic, and/or articular symptoms which subside spontaneously. Erysipelas-like findings, orchitis, and different patterns of myalgia may appear in a minority of patients. In recent years, many non-classical manifestations have been reported in the clinical context of FMF, such as vasculitides and thrombotic manifestations, neurologic and sensory organ abnormalities, gastrointestinal diseases, and even macrophage activation syndrome. As FMF left unrecognized and untreated is ominously complicated by the occurrence of AA-amyloidosis, it is highly desirable that diagnosis of this autoinflammatory disorder with its multiple clinical faces can be contemplated at whatever age and brought forward.
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Demir A, Akyüz F, Göktürk S, Evirgen S, Akyüz U, Örmeci A, Soyer Ö, Karaca C, Demir K, Gundogdu G, Güllüoğlu M, Erer B, Kamalı S, Kaymakoglu S, Besisik F, Gül A. Small bowel mucosal damage in familial Mediterranean fever: results of capsule endoscopy screening. Scand J Gastroenterol 2014; 49:1414-8. [PMID: 25369738 DOI: 10.3109/00365521.2014.976838] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Familial Mediterranean fever (FMF) is the most common form of autoinflammatory diseases. We aimed to evaluate the small bowel mucosa by capsule endoscopy (CE) in FMF patients for investigation of other possible causes of abdominal pain. MATERIAL AND METHODS The study group consisted of 41 patients with FMF. A standard questionnaire was used to record the gastrointestinal symptoms, other clinical findings, Mediterranean fever gene (MEFV) mutations, and history of medications including non-steroidal anti-inflammatory drugs (NSAIDs). Gastroscopy, colonoscopy and small bowel CE were performed in all patients, and biopsies were taken from terminal ileum and duodenum. RESULTS The mean age of the patients was 34 ± 11 years, 63% of them were female, and 76.5% of them were carrying MEFV exon 10 mutations. Only one patient used NSAIDs in addition to colchicine. In endoscopic investigations, gastric erosion was detected in only one patient, and no significant findings were detected in colonoscopy. CE showed small bowel mucosal defects in 44% (erosions in 26.8%, ulcer in 17.1%) and edema in 29.3% of the patients. Most (64%) of the ulcer and erosions were localized to jejunum, and only 24% were in ileum. Mitotic changes as an indirect finding of colchicine toxicity were not different from the changes observed in samples of independent group of patients with irritable bowel syndrome. CONCLUSION Mucosal defect was observed in half of the FMF patients, which may be associated with underlying inflammation or chronic colchicine exposure. Detection of nonspecific chronic inflammation without mitotic changes supports that mucosal defects may be associated with the autoinflammatory process.
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Affiliation(s)
- Abdurrahman Demir
- Department of Internal Medicine, Istanbul University, Istanbul Faculty of Medicine , Istanbul , Turkey
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Chandrakasan S, Chiwane S, Adams M, Fathalla BM. Clinical and genetic profile of children with periodic fever syndromes from a single medical center in South East Michigan. J Clin Immunol 2014; 34:104-13. [PMID: 24233262 DOI: 10.1007/s10875-013-9960-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Accepted: 10/21/2013] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To report a cohort of children with periodic fever syndromes (PFS) from Southeast Michigan. METHODS A retrospective review of medical records for patients referred for periodic fever over 5 years. RESULTS Sixty-six patients including 21 FMF, 15 PFAPA, four TRAPS and one patient with combined HIDS and FMF were included. In addition, 25 patients were categorized as clinical PFS (cPFS) based on their clinical features however their genetic workup was either negative or inconclusive. Majority of the patients with FMF were from Middle Eastern background (88 %), but positive family history was noted in only 55 % of cases. Mean age at diagnosis was 40.8 months with a mean delay in diagnosis of 24 months. Most common MEFV mutations were p.M694V and p.M694I. Four patients with TRAPS were from mixed European descent and age at onset of symptoms was 6, 12, 12, and 84 months respectively. TNFRSF1A sequence variants in the TRAPS patients included p.R121Q (R92Q) and p.C99G (C70G); one patient had a rare occurrence of a concurrent p.V726A/-MEFV mutation. One patient with HIDS and FMF presented with atypical overlapping PFS clinical manifestations and genetic evaluation showed a unique combination of p.I268T/p.V377I MVK mutations and p.E230K/-MEFV variant. All patients with PFAPA group were from mixed European descent, symptoms started at a mean age of 34.6 months with a mean delay in diagnosis of 23.3 months. Symptoms started during infancy in six patients. All patients fulfilled the diagnostic criteria for PFAPA. The mean age of onset of symptoms in cPFS group was 17.2 months. Empiric colchicine and glucocorticosteroids controlled flares in majority of patients with cPFS. No evidence of amyloidosis was found in this entire cohort of 66 patients after a mean of 29.2 months of follow-up. CONCLUSION PFS can present with atypical manifestations and should not be excluded based on a negative family history. Concomitant mutations in different autoinflammatory disorders genes can be present and possibly explain atypical manifestations. Various therapies may be considered even if genetic testing is inconclusive or negative.
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Salah S, El-Shabrawi M, Lotfy HM, Shiba HF, Abou-Zekri M, Farag Y. Detection of Mediterranean fever gene mutations in Egyptian children with inflammatory bowel disease. Int J Rheum Dis 2014; 19:806-13. [PMID: 25292286 DOI: 10.1111/1756-185x.12482] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
AIM The aim of the current study is to investigate the prevalence of familial Mediterranean fever gene (MEFV) mutations in a cohort of Egyptian children with inflammatory bowel disease (IBD), and to characterize familial Mediterranean fever (FMF)-IBD patients, helping better understanding of IBD pathogenesis. METHODS The study enrolled 17 patients with ulcerative colitis (UC), 15 with Crohn's disease(CD), 10 with indeterminate colitis (IC) and 33 healthy children as controls. All cases and controls were tested for 12 FMF gene mutations by reverse hybridization after multiplex polymerase chain reaction amplification and DNA sampling. RESULTS Eighty-eight percent of the IBD patients carried the mutations, with Sequence variant V627A being the commonest versus 42.4% of controls. No associations were found between MEFV gene mutations, and phenotypic characteristics of IBD patients. CONCLUSION IBD patients, in populations with a high background carrier rate of MEFV variants, should be screened for MEFV gene mutations, especially those diagnosed as indeterminate colitis. Testing larger numbers of healthy Egyptian children for MEFV gene mutation is important to further determine the allele frequency in Egypt.
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Affiliation(s)
- Samia Salah
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mortada El-Shabrawi
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hala Mohamed Lotfy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hala Fathy Shiba
- Department of Clinical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Maha Abou-Zekri
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Yomna Farag
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
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Beşer ÖF, Çokuğraş FÇ, Kutlu T, Erginöz E, Gülcü D, Kasapçopur Ö, Erkan T. Association of familial Mediterranean fever in Turkish children with inflammatory bowel disease. Turk Arch Pediatr 2014; 49:198-202. [PMID: 26078663 DOI: 10.5152/tpa.2014.1998] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/27/2014] [Indexed: 01/24/2023]
Abstract
AIM Familial Mediterranean fever (FMF) and inflammatory bowel disease (IBD) carry similar clinical and biological properties. Both are characterized with chronic inflammation attacks and neutrophil migration and impaired apoptosis mechanism are present in the areas of damage in both conditions. In our study, we aimed to determine the frequency of association of FMF in patients with IBD, to compare the demographic, clinical, laboratory and treatment response properties in these patients with the ones in other IBD patients and to determine association of FMF especially in treatment-resistant patients. MATERIAL AND METHODS Fifty-three patients who were being followed up with a diagnosis of IBD aged between 0 and 18 years were included in the study. The patient group included the patients who were diagnosed with IBD according to clinical, serological, endoscopic and histopathological criteria, who were being followed up and whose therapies were continuing. Genetic analysis in terms of MEFV gene mutations was performed in all patients with a diagnosis of IBD. Acute phase reactants, complete blood count, immunoglobulin levels, stool analysis, "perinuclear anti-neutrophil cytoplasmic antibodies" (pANCA) and "anti-Saccharomyces cerevisiae antibodies" (ASCA) were studied at the time of diagnosis. The diagnosis of FMF was made according to detailed history, physical examination findings, laboratory tests and the results of genetic analyses in terms of MEFV gene mutations in accordance with the criteria defined in 2009. RESULTS We found that FMF accompanied in 14 (26.4%) of the patients who had a diagnosis of IBD. 3 of these 14 patients in whom FMF accompanied were being followed up with a diagnosis of Crohn disease and 11 were being followed up with a diagnosis of ulcerative colitis. All of these patients had MEFV gene mutation. These mutations included M694V (50%), K695R (21.4%), M680I (14.3%) and R202Q (14.3%) in order of frequency. When the laboratory data were compared between the patients who had a diagnosis of IBD alone and who had a diagnosis of IBD plus FMF, it was observed that the erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) values were statistically significantly higher in the IBD+FMF group. CONCLUSIONS FMF is a common condition in the Turkish population and M694V mutation is found most commonly. In our study, this status did not change in cases where FMF accompanied IBD, but K695R mutation was found more frequently compared to FMF alone. We think that it should be kept in mind that other inflammatory conditions including mainly FMF may accompany IBD, if a case of IBD does not have an expected course or is resistant to treatment.
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Affiliation(s)
- Ömer Faruk Beşer
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Fügen Çullu Çokuğraş
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Tufan Kutlu
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Ethem Erginöz
- Department of Public Health, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Didem Gülcü
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Özgür Kasapçopur
- Department of Pediatrics, Division of Pediatric Rheumatology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
| | - Tülay Erkan
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey
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Esophagitis and widespread aphthous ulcerations in gastric mucosa in an infant with familial Mediterranean fever. J Pediatr Gastroenterol Nutr 2014; 59:e11-3. [PMID: 23492736 DOI: 10.1097/mpg.0b013e3182906d8f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Association of inflammatory bowel disease with familial Mediterranean fever in Turkish children. J Pediatr Gastroenterol Nutr 2013; 56:498-502. [PMID: 23164758 DOI: 10.1097/mpg.0b013e31827dd763] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND AIMS Inflammatory bowel disease (IBD) and familial Mediterranean fever (FMF) share common clinical and biological features. The prevalence of other inflammatory diseases, including IBD, is increased in FMF. We investigated the presence of IBD accompanying FMF in patients who were being followed up with a diagnosis of FMF and the relation of IBD with the MEFV gene mutation. METHODS A total of 78 children with FMF were enrolled in the study. The patients were included in the study independent of the presence of complaints. Colonoscopy for IBD was performed if any of the following was present: blood mixed with mucus in the stool; chronic diarrhea (loose and frequent stools lasting >4 weeks); abdominal pain incompatible with FMF (localized in a certain part of the abdomen, not occurring during attacks, >3 days); and positive IgA and IgG anti-Saccharomyces cerevisiae antibodies and perinuclear antineutrophil cytoplasmic antibodies. MEFV gene mutations were analyzed in patients diagnosed as having IBD and FMF. RESULTS Of the 78 patients with a diagnosis of FMF, colonoscopy was performed and biopsy samples were taken in 20 patients (25.6%) who had abdominal pain incompatible with FMF, chronic diarrhea, bloody stools, and/or positive perinuclear anti-neutrophil cytoplasmic antibody or anti-Saccharomyces cerevisiae antibody. Histopathological examination resulted in a diagnosis of IBD in 12 of the 78 patients (15.4%). MEFV gene mutations were present in all 12 patients diagnosed as having IBD. We observed M694 V mutations in 5 of 12 patients (41.7%), M680I mutations in 3 (25%), K695R mutations in 3 (25%), and E148Q mutations in 1 (8.3%). CONCLUSIONS We found that the number of patients with FMF was higher than the number with IBD in the general population. When IBD accompanied FMF, the most common mutation was M694 V; however, the high rate (25%) of K695R mutation in our patients with FMF and IBD was not observed in previous studies.
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Taniuchi S, Nishikomori R, Iharada A, Tuji S, Heike T, Kaneko K. MEFV Variants in Patients with PFAPA Syndrome in Japan. Open Rheumatol J 2013; 7:22-5. [PMID: 23847694 PMCID: PMC3681033 DOI: 10.2174/1874312901307010022] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 03/09/2013] [Accepted: 03/14/2013] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The pathogenesis of PFAPA (periodic fever, aphthous stomatitis, pharyngitis, adenitis) syndrome is unknown as yet. In order to understand whether genes implicated in other auto-inflammatory diseases might be involved in the pathogenesis of PFAPA, all variants in the genes causing familial Mediterranean fever (FMF), tumor necrosis factor (TNF) receptor-associated periodic syndrome (TRAPS), and Hyper IgD syndrome were analyzed in children with PFAPA. PATIENTS AND METHODS All variants in MEFV, TNFRSF1A, and MVK were analyzed in 20 patients with PFAPA. PFAPA were diagnosed by previous published criteria. The findings of all analyses in PFAPA patients were compared with those of unaffected normal subjects (n=62). RESULTS In the 13 children of 20 with PFAPA, the heterozygous variants of MEFV (5 patients: E148Q-L110P, 2 patients: E148Q, 1 patient: E148Q-L110P/E148Q, 1 patient: E148Q-P369S-R408Q-E84K, 1 patient: E148Q-L110P-P369S-A408G, 1 patient: R202Q, 1 patient: P115R) were found. No variants belonging to TNFRSF1A or MVK were detected in children with PFAPA. The frequency of the E148Q-L110P variants in children with PFAPA was significantly higher than that observed in unaffected normal subjects (7/20 versus 8/62). The duration of the episodes of illness in PFAPA children with MEFV variants was shorter than that of patients without variants. CONCLUSION Genes involved in the development and progression of MEFV may affect the incidence and the phenotype of PFAPA in children.
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Abstract
Over 15 years have passed since the discovery of the first autoinflammatory gene, MEFV, responsible for familial Mediterranean fever. The identification of another gene, TNFRSF1A, in 1999 led to the concept of autoinflammation which characterises rheumatological conditions triggered by a defective innate immunity. Substantive progress has been made since then with the identification of 18 autoinflammatory genes accounting for up to 24 disease entities showing overlapping symptoms. The accumulation of studies reporting patients with missing or excess mutations as compared with expected numbers favours the hypothesis that these diseases are distributed along a continuum ranging from monogenic to multifactorial conditions, rather than featuring only classical modes of inheritance. Moreover, the probable interactions of environmental and epigenetic factors further obscure our understanding of the mechanisms underlying the phenotypic expression of patients. This review explores the history of autoinflammatory gene discovery, discusses the nosological disparities stemming from the clinical versus pathophysiological definition of autoinflammatory diseases and summarises various inheritance patterns. This review calls for a consistent disease nomenclature and presents a reconciling hypothesis which places different sequence variants within the autoinflammatory disease continuum. Integrating these new concepts should help to facilitate communication between health professionals and promote personalised patient care.
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Affiliation(s)
- Isabelle Touitou
- CHRU Montpellier, UM1, INSERMU844, UMAI, laboratoire de génétique, Hopital A de Villeneuve, 34295, Montpellier Cedex 15, France.
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Abstract
BACKGROUND Association of NOD2 (CARD15) gene mutations with inflammatory bowel diseases (IBD) is well known. We herein aimed to investigate the role of familial Mediterranean fever-associated MEFV variations in IBD patients as additional regional-specific risk factor. STUDY One hundred thirty-seven (78 female, 56.9%) IBD patients [62 Crohn's disease (CD), 75 ulcerative colitis (UC)] were enrolled into the study. The diagnosis of all patients was confirmed by colonoscopy, histopathology, and the clinical findings. One hundred one healthy donors' samples were used as healthy controls. All patients were genotyped for the most common E148Q, M608I, M694V, and V726A variations of the MEFV and R702W, G908R, and 1007fs of the NOD2. RESULTS The overall MEFV variation frequency was found to be higher in the IBD (25.5%) patients (28% in UC, 22.6% in CD) compared with controls (9.9%, P=0.006). This association was stronger with the penetrant exon 10 variations (M694V, M680I, V726A; odds ratio =4.5, P=0.001). Contribution of M694V was higher compared with the other variations (14.5% in CD, 17.3% in UC and 3% in controls, odds ratio =6.039, 95% confidence intervals, 1.7-20.7, P=0.002). The overall frequency of 3 NOD2 variants in the IBD group was not different from that of controls. CONCLUSIONS The results of this study suggest that the MEFV variations may be an additional susceptibility factor for IBD in certain parts of the world where the carrier rate is high, and the genetic background of the IBD patients may show regional changes.
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Berkun Y, Karban A, Padeh S, Pras E, Shinar Y, Lidar M, Livneh A, Bujanover Y. NOD2/CARD15 Gene Mutations in Patients with Familial Mediterranean Fever. Semin Arthritis Rheum 2012; 42:84-8. [DOI: 10.1016/j.semarthrit.2011.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 12/08/2011] [Accepted: 12/08/2011] [Indexed: 01/30/2023]
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Infantile colitis as a novel presentation of familial Mediterranean fever responding to colchicine therapy. J Pediatr Gastroenterol Nutr 2011; 53:102-5. [PMID: 21694544 DOI: 10.1097/mpg.0b013e31820cfab1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Berkun Y, Levy R, Hurwitz A, Meir-Harel M, Lidar M, Livneh A, Padeh S. The Familial Mediterranean Fever Gene as a Modifier of Periodic Fever, Aphthous Stomatitis, Pharyngitis, and Adenopathy Syndrome. Semin Arthritis Rheum 2011; 40:467-72. [DOI: 10.1016/j.semarthrit.2010.06.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 06/21/2010] [Accepted: 06/28/2010] [Indexed: 01/10/2023]
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