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Kubo S, Fritz JM, Raquer-McKay HM, Kataria R, Vujkovic-Cvijin I, Al-Shaibi A, Yao Y, Zheng L, Zou J, Waldman AD, Jing X, Farley TK, Park AY, Oler AJ, Charles AK, Makhlouf M, AbouMoussa EH, Hasnah R, Saraiva LR, Ganesan S, Al-Subaiey AA, Matthews H, Flano E, Lee HH, Freeman AF, Sefer AP, Sayar E, Çakır E, Karakoc-Aydiner E, Baris S, Belkaid Y, Ozen A, Lo B, Lenardo MJ. Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease. Nat Immunol 2022; 23:75-85. [PMID: 34937930 PMCID: PMC11060421 DOI: 10.1038/s41590-021-01093-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 11/09/2021] [Indexed: 11/08/2022]
Abstract
We report a pleiotropic disease due to loss-of-function mutations in RHBDF2, the gene encoding iRHOM2, in two kindreds with recurrent infections in different organs. One patient had recurrent pneumonia but no colon involvement, another had recurrent infectious hemorrhagic colitis but no lung involvement and the other two experienced recurrent respiratory infections. Loss of iRHOM2, a rhomboid superfamily member that regulates the ADAM17 metalloproteinase, caused defective ADAM17-dependent cleavage and release of cytokines, including tumor-necrosis factor and amphiregulin. To understand the diverse clinical phenotypes, we challenged Rhbdf2-/- mice with Pseudomonas aeruginosa by nasal gavage and observed more severe pneumonia, whereas infection with Citrobacter rodentium caused worse inflammatory colitis than in wild-type mice. The fecal microbiota in the colitis patient had characteristic oral species that can predispose to colitis. Thus, a human immunodeficiency arising from iRHOM2 deficiency causes divergent disease phenotypes that can involve the local microbial environment.
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Affiliation(s)
- Satoshi Kubo
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jill M Fritz
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Cooley, LLP in Washington, Washington, DC, USA
| | - Hayley M Raquer-McKay
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Immunology Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Rhea Kataria
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ivan Vujkovic-Cvijin
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | - Yikun Yao
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Lixin Zheng
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Juan Zou
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Alex D Waldman
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Xinyi Jing
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Taylor K Farley
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Ann Y Park
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Andrew J Oler
- Bioinformatics and Computational Biosciences Branch, Office of Cyber Infrastructure and Computational Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | | | | | - Reem Hasnah
- Research Branch, Sidra Medicine, Doha, Qatar
| | - Luis R Saraiva
- Research Branch, Sidra Medicine, Doha, Qatar
- Monell Chemical Senses Center, Philadelphia, PA, USA
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
| | - Sundar Ganesan
- Biological Imaging Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | - Helen Matthews
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Emilio Flano
- Discovery Oncology and Immunology, Merck & Co., Inc., Boston, MA, USA
| | - Hyun Hee Lee
- Discovery Oncology and Immunology, Merck & Co., Inc., Boston, MA, USA
| | - Alexandra F Freeman
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Asena Pınar Sefer
- Division of Allergy and Immunology, Marmara University School of Medicine, Istanbul, Turkey
- Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Istanbul, Turkey
- The Isil Berat Barlan Center for Translational Medicine, Istanbul, Turkey
| | - Ersin Sayar
- Department of Pediatric Gastroenterology, Altinbas University Medical Park Bahcelievler Hospital, Istanbul, Turkey
| | - Erkan Çakır
- Division of Pediatric Pulmonology, Department of Pediatrics, Bezmialem Vakif University, School of Medicine, Istanbul, Turkey
| | - Elif Karakoc-Aydiner
- Division of Allergy and Immunology, Marmara University School of Medicine, Istanbul, Turkey
- Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Istanbul, Turkey
- The Isil Berat Barlan Center for Translational Medicine, Istanbul, Turkey
| | - Safa Baris
- Division of Allergy and Immunology, Marmara University School of Medicine, Istanbul, Turkey
- Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Istanbul, Turkey
- The Isil Berat Barlan Center for Translational Medicine, Istanbul, Turkey
| | - Yasmine Belkaid
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- National Institute of Allergy and Infectious Diseases Microbiome Program, National Institutes of Health, Bethesda, MD, USA
| | - Ahmet Ozen
- Division of Allergy and Immunology, Marmara University School of Medicine, Istanbul, Turkey.
- Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, Istanbul, Turkey.
- The Isil Berat Barlan Center for Translational Medicine, Istanbul, Turkey.
| | - Bernice Lo
- Research Branch, Sidra Medicine, Doha, Qatar.
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar.
| | - Michael J Lenardo
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology and Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
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Yaprak N, Sayar E, Derin AT, Bostancı A, Turhan M, Yılmaz A. Hearing evaluation with ABR in pediatric patients with celiac disease. Turk J Gastroenterol 2021; 31:163-166. [PMID: 32141826 DOI: 10.5152/tjg.2020.19510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND/AIMS Celiac disease (CD) is an autoimmune and genetic disease that is triggered by gluten intolerance. We aimed to investigate whether Celiac disease have any effect on Auditory Brainstem Response (ABR) waves compare to a healthy control group, and present its association with sensorineural hearing loss (SNHL). MATERIALS AND METHODS Thirty-eight patients aged 2 to 16 years old were included in the study. The patients had confirmed diagnosis of Celiac disease through duodenal biopsies and transglutaminase Antibody (Ab) (+). The control group consisted of 18 children aged 3 to 17 years old who were all admitted to the pediatric gastroenterology department due to complaints of constipation and transglutaminase Ab (-).All children underwent Auditory-Brain-Stem-Evoked Responses (ABR). The data were gathered using click stimulus at 10/s frequency 90dB HL. RESULTS The results of ABR examination did not show any difference between the patient group and control group as regards the latency of the waves I, III, V. No difference was observed between the two groups in the interpeak latecies I-III, I-V and III-V. None of the patients was observed to have clinical hearing loss. DISCUSSION The exact pathogenesis of neurological damages observed in Celiac disease is still unknown. Humoral immune mechanisms are the most frequently attributed cause. CONCLUSION Although no significant difference was found in hearing values between the study group and healthy control group, there is a need for further research on this subject.
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Affiliation(s)
- Neslihan Yaprak
- Department of Otorhinolaryngology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Ersin Sayar
- Department of Pediatric Gastroenterology, Alanya Alaaddin Keykubat University, Alanya Training and Research Hospital, Alanya, Turkey
| | - Alper Tunga Derin
- Department of Otorhinolaryngology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Aslı Bostancı
- Department of Otorhinolaryngology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Murat Turhan
- Department of Otorhinolaryngology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Aygen Yılmaz
- Department of Pediatric Gastroenterology, Akdeniz University School of Medicine, Antalya Turkey
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Savas HB, Sayar E, Kara T. Thiol Disulfide Balance Oxidative Stress and Paraoxonase 1 Activities in Children and Adolescents Aged 6-16 Years with Specific Learning Disorders. ELECTRON J GEN MED 2021. [DOI: 10.29333/ejgm/10837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Caridi G, Maout A, Artan R, Campagnoli M, Lugani F, Abada MEA, Sayar E, Galliano M, Minchiotti L. Congenital Analbuminemia in Unrelated Algerian and Turkish Families is Caused by the Same Molecular Defect in the Albumin Gene. Ann Lab Med 2019; 38:185-188. [PMID: 29214768 PMCID: PMC5736683 DOI: 10.3343/alm.2018.38.2.185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/30/2017] [Accepted: 10/13/2017] [Indexed: 01/14/2023] Open
Affiliation(s)
- Gianluca Caridi
- Laboratory on Pathophysiology of Uremia, Istituto Giannina Gaslini IRCCS, Genova, Italy
| | - Abdelbasset Maout
- Blood Transfusion Center, Laboratory of Medical Virology, Mustapha Bacha University Hospital Center, Algiers, Algeria
| | - Reha Artan
- Department of Pediatric Gastroenterology, Akdeniz University, Antalya, Turkey
| | | | - Francesca Lugani
- Laboratory on Pathophysiology of Uremia, Istituto Giannina Gaslini IRCCS, Genova, Italy
| | - Mohamed El Amine Abada
- Blood Transfusion Center, Laboratory of Medical Virology, Mustapha Bacha University Hospital Center, Algiers, Algeria
| | - Ersin Sayar
- Department of Pediatric Gastroenterology, Akdeniz University, Antalya, Turkey
| | - Monica Galliano
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
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Abstract
OBJECTIVE The aim of our study was to evaluate our liver transplant pediatric patients and to report our experience in the complications and the long-term follow-up results. MATERIALS AND METHODS Patients between the ages of 0 and 18 years, who had liver transplantation in the organ transplantation center of our university hospital between 1997 and 2016, were included in the study. The age, sex, indications for the liver transplantation, complications after the transplantation, and long-term follow-up findings were retrospectively evaluated. The obtained results were analyzed with statistical methods. RESULTS In our organ transplantation center, 62 pediatric liver transplantations were carried out since 1997. The mean age of our patients was 7.3 years (6.5 months-17 years). The 4 most common reasons for liver transplantation were: Wilson's disease (n=10; 16.3%), biliary atresia (n=9; 14.5%), progressive familial intrahepatic cholestasis (n=8; 12.9%), and cryptogenic cirrhosis (n=7; 11.3%). The mortality rate after transplantation was 19.6% (12 of the total 62 patients). The observed acute and chronic rejection rates were 34% and 4.9%, respectively. Thrombosis (9.6%) was observed in the hepatic artery (4.8%) and portal vein (4.8%). Bile leakage and biliary stricture rates were 31% and 11%, respectively. 1-year and 5-year survival rates of our patients were 87% and 84%, respectively. CONCLUSION The morbidity and mortality rates in our organ transplantation center, regarding pediatric liver transplantations, are consistent with the literature.
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Affiliation(s)
- Ahmet Basturk
- Department of Pediatric Gastroenterology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Aygen Yılmaz
- Department of Pediatric Gastroenterology, Akdeniz University School of Medicine, Antalya, Turkey
| | - Ersin Sayar
- Clinic of Pediatrics, Konya Training and Research Hospital, Konya, Turkey
| | - Ayhan Dinçkan
- Department of General Surgery, İstanbul Yeni Yüzyil University School of Medicine, İstanbul, Turkey
| | - İbrahim Aliosmanoğlu
- Department of General Surgery, Akdeniz University School of Medicine, Antalya, Turkey
| | - Halil Erbiş
- Department of General Surgery, Akdeniz University School of Medicine, Antalya, Turkey
| | - Bülent Aydınlı
- Department of General Surgery, Akdeniz University School of Medicine, Antalya, Turkey
| | - Reha Artan
- Department of Pediatric Gastroenterology, Akdeniz University School of Medicine, Antalya, Turkey
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İşlek A, Sayar E, Yılmaz A, Baysan BÖ, Mutlu D, Artan R. The role of Bifidobacterium lactis B94 plus inulin in the treatment of acute infectious diarrhea in children. Turk J Gastroenterol 2015; 25:628-33. [PMID: 25599772 DOI: 10.5152/tjg.2014.14022] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND/AIMS In contrast to many other studies of probiotic species, the number of publications evaluating Bifidobacterium lactis and its combinations with prebiotics as treatments for acute infectious diarrhea is limited. We investigated the synbiotic effects of B. lactis B94 plus inulin on acute infectious diarrhea. MATERIALS AND METHODS The study was conducted on children with acute diarrhea between the ages of 2 and 60 months. The patients were administered 5×1010 colony-forming units (CFU) of B. lactis B94 plus 900 mg inulin or placebo, once a day for five days. Stools were examined for Rotavirus, Adenovirus, Entamoeba histolytica, Salmonella, Shigella, Campylobacter, Clostridium difficile, Cryptosporidium, and parasites. RESULTS We examined 79 patients in the synbiotic group and 77 patients in the placebo group. The duration of diarrhea was significantly reduced in the synbiotic group in comparison with the placebo group (3.9±1.2 days vs. 5.2±1.3 days, respectively; p<0.001). Moreover, the number of diarrheal stools on the third day was significantly lower in the synbiotic group than in the placebo group (5.5±2.9 vs. 8.3±3.01, respectively; p<0.001). Diarrhea in the synbiotic-group patients with rotavirus infection was of a significantly shorter duration (3.2±1.3 days vs. 5.2±1.3 days, respectively; p=0.001). Duration of diarrhea in patients who started the synbiotic treatment within the first 24 h was shorter than that in the patients who started the treatment later (3.9±1.1 days vs. 4.8±1.8 days, respectively; p=0.002). CONCLUSION Treatment with 5 × 1010 CFU of B. lactis B94 plus 900 mg inulin shortened the duration of acute watery diarrhea by an average of 31 h. This decrease was most pronounced in cases of Rotavirus diarrhea.
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Affiliation(s)
- Ali İşlek
- Department of Pediatric Gastroenterology, Akdeniz University Faculty of Medicine, Antalya, Turkey
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Sayar E, Özdem S, Uzun G, İşlek A, Yılmaz A, Artan R. Total oxidant status, total antioxidant capacity and ischemia modified albumin levels in children with celiac disease. Turk J Pediatr 2015; 57:498-503. [PMID: 27411418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In our study, we aimed to investigate ischemia modified albumin (IMA) as an oxidative stress marker, as well as other oxidant and antioxidant markers that have not been evaluated in children with celiac disease. A total of 37 pediatric patients who were diagnosed with celiac disease (CD) and 29 healthy children were enrolled in this prospective study. We evaluated the IMA, total oxidant status, total antioxidant capacity, sulfhydryl, and advanced oxidation protein products in all of the subjects. We also compared the levels at the time of the diagnosis, and following a gluten-free diet (GFD) in the children with CD. While the IMA and the other oxidant marker levels were significantly higher in the patient group compared to the control group, the antioxidant marker levels were found to be significantly lower in the patient group, compared to the control group. We also determined that the tissue transglutaminase IgA showed a highly positive correlation, and that the IMA showed a moderately positive correlation with the Marsh-Oberhuber histopathological stage. Additionally, the IMA and other oxidant marker levels were significantly lower, while the antioxidant marker levels were significantly higher after the GFD, compared to the pre-diet period. We detected that oxidative stress played a role in the pathogenesis of CD, and that this could be evaluated using oxidative stress markers, which would regress after the GFD. We also detected that IMA is a marker that shows a correlation with the histopathological stage, and may be used in the diagnosis.
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Affiliation(s)
- Ersin Sayar
- Department of Pediatric Gastroenterology, Konya Training and Research Hospital, Konya, Turkey.
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Islek A, Sayar E, Yılmaz A, Boneval C, Artan R. A rare outcome of iron deficiency and pica: Rapunzel syndrome in a 5-year-old child iron deficiency and pica. Turk J Gastroenterol 2015; 25:100-2. [PMID: 24918141 DOI: 10.5152/tjg.2014.4051] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bezoar is defined as the accumulation of organic or nonbiological substances inside the gastrointestinal system. Trichobezoars are the most frequently detected ones and are mostly present in patients with neuropsychiatric disorders. The continuance of the trichobezoar tail-shaped extension over the duodenum and jejunum is described in Rapunzel syndrome. Both conditions are rarely reported in children. The present case submitted here is related to a 5-year-old girl referred with an abdominal mass and anemia, diagnosed with Rapunzel syndrome and developing trichobezoar due to iron deficiency and pica.
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Affiliation(s)
- Ali Islek
- Department of Pediatric Gastroenterology, Akdeniz University Faculty of Medicine, Antalya, Turkey
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Islek A, Sayar E, Yilmaz A, Artan R. Bifidobacterium lactis B94 plus inulin for Treatment of Helicobacter pylori infection in children: does it increase eradication rate and patient compliance? Acta Gastroenterol Belg 2015; 78:282-286. [PMID: 26448408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The aim of this study is to investigate the effects of Bifidobacterium lactis B94 and inulin (synbiotic) treatment on eradication rate and patient compliance in subjects treated for symptomatic H. pylori infection. Patients with symptomatic H. pylori infection were divided into two groups. One group was treated with standard triple therapy (lansoprazole, amoxicillin, and clarithromycin) and B. lactis B94 (5 × 109 CFU/dose) plus inulin (900 mg) twice daily for seven days. The control group was treated with standard triple therapy and placebo. The side effects and eradication rates were evaluated at the end of the study. Ninety-three patients with H. pylori infection were treated with either synbiotic plus triple therapy (n = 47) or placebo plus triple therapy (n = 46). The infection eradication rates were not significantly different between the synbiotic and placebo groups [intent-to-treat (ITT), 80.8% and 67.3%, p = 0.13, respectively; per-protocol (PP), 86.3% and 81.5%, p = 0.55, respectively]. The drug side effects were significantly higher in the placebo group than in the synbiotic group (63% and 17%, respectively, p < 0.01). Although no intolerable adverse side effects were observed in the synbiotic group, intolerable adverse side effects were observed in 13% of the placebo group (p = 0.01). Our results suggest that twice daily 5 × 109 CFU/dose B. lactis B94 plus 900 mg inulin treatment did not have a direct positive effect on the H. pylori eradication rate. However, this treatment had significantly reduced side effects and indirectly increased eradication rates by increasing patient compliance.
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Kirchmeier P, Sayar E, Hotz A, Hausser I, Islek A, Yilmaz A, Artan R, Fischer J. Novel mutation in the CLDN1 gene in a Turkish family with neonatal ichthyosis sclerosing cholangitis (NISCH) syndrome. Br J Dermatol 2015; 170:976-8. [PMID: 24641442 DOI: 10.1111/bjd.12724] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P Kirchmeier
- Institute of Human Genetics, University Medical Center Freiburg, Breisacherstraße 33, 79106, Freiburg, Germany; Faculty of Biology, University of Freiburg, Schänzlestraße 1, 79104, Freiburg, Germany
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Islek A, Sayar E, Yilmaz A, Duman O, Artan R. A very rare cause of acute pancreatitis: Berardinelli-Seip congenital lipodystrophy. Turk J Gastroenterol 2015; 25 Suppl 1:216-9. [DOI: 10.5152/tjg.2014.3667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sayar E, Kalay S, Yilmaz A, Oztekin O, Islek A, Elpek GO, Kalay Z, Tezel G, Artan R. Microvillus inclusion disease associated with necrotizing enterocolitis in a premature infant. AJP Rep 2014; 4:e61-4. [PMID: 25452882 PMCID: PMC4239143 DOI: 10.1055/s-0034-1370353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 12/24/2013] [Indexed: 02/08/2023] Open
Abstract
Microvillus inclusion disease is one of the congenital diarrheal disorders characterized by the appearance of inclusion bodies on the intestinal epithelium. To date there are a few cases and also a few other associated finding reports related to this life-threatening disease in literature. In this report, we present a premature infant with microvillus inclusion disease that was associated with necrotizing enterocolitis. Thus, we should be aware of the appearance of necrotizing enterocolitis in patients with microvillus inclusion disease, especially when contributing factors are present.
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Affiliation(s)
- Ersin Sayar
- Department of Pediatric Gastroenterology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Salih Kalay
- Department of Neonatology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
- Address for correspondence Dr. Salih Kalay Department of Neonatology, Faculty of Medicine, Akdeniz UniversityDumlupinar Bulvari, 07059, Kampus, AntalyaTurkey
| | - Aygen Yilmaz
- Department of Pediatric Gastroenterology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Osman Oztekin
- Department of Neonatology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Ali Islek
- Department of Pediatric Gastroenterology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Gulsum Ozlem Elpek
- Department of Pathology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Zuhal Kalay
- Department of Pediatrics, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Gonul Tezel
- Department of Neonatology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Reha Artan
- Department of Pediatric Gastroenterology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
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Sayar E, Uygun DFK, Islek A, Hazar-Sayar E, Akkaya B, Vignoli M, Gambineri E, Yesilipek MA, Artan R. Langerhans cell histiocytosis in IPEX syndrome: possible role for natural regulatory T cells? Pediatr Allergy Immunol 2014; 25:601-3. [PMID: 24628744 DOI: 10.1111/pai.12219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ersin Sayar
- Department of Pediatric Gastroenterology, Konya Training and Research Hospital, Konya, Turkey.
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Nur BG, Altıok-Clark Ö, İlhan HD, Sayar E, Yücel İ, Mıhçı E. Bilateral congenital cataracts in an infant with Klinefelter syndrome. Turk J Pediatr 2014; 56:546-550. [PMID: 26022594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Congenital cataract is one of the most treatable causes of visual impairment and blindness during infancy, with an estimated prevalence of approximately 2.5:10,000 infants under the age of 1 year. Congenital cataract can be observed with certain chromosomal abnormalities, such as trisomies, deletions, translocations and Turner syndrome. In Klinefelter syndrome, however, ocular complications and cataract are not commonly encountered, so reports in the literature are very rare. In this manuscript, we present a 3-month-old male infant who had congenital cataracts. Chromosomal analysis revealed that his karyotype was 47,XXY. He did not show any of the main clinical signs of Klinefelter syndrome because of his very young age. To the best of our knowledge, our patient is only the second-ever case reported in the literature in which congenital cataracts have been found in an infant with a nonmosaic 47,XXY karyotype. The aim of the present report is to both describe the ocular abnormalities that can sometimes be found in Klinefelter syndrome and to emphasize the importance of performing a karyotype analysis in order to rule out chromosome abnormalities in patients with congenital cataracts.
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Affiliation(s)
- Banu Güzel Nur
- Department of Pediatric Genetics, Akdeniz University Faculty of Medicine, Antalya, Turkey.
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İslek A, Sayar E, Yılmaz A, Boneval C, Artan R. Author's reply: To PMID 24918141. Turk J Gastroenterol 2014; 25:461-462. [PMID: 25381671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Sayar E, Yilmaz A, Islek A, Elpek GO, Flanagan SE, Artan R. Chromogranin-A staining reveals enteric anendocrinosis in unexplained congenital diarrhea. J Pediatr Gastroenterol Nutr 2013; 57:e21. [PMID: 24084374 DOI: 10.1097/mpg.0b013e3182560f26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ersin Sayar
- *Department of Pediatric Gastroenterology †Department of Pathology, Akdeniz University Faculty of Medicine, Antalya, Turkey ‡Institute of Biomedical and Clinical Science, Peninsula Medical School, University of Exeter, Exeter, UK
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Sayar E, Islek A, Yilmaz A, Akcam M, Flanagan SE, Artan R. Extremely rare cause of congenital diarrhea: enteric anendocrinosis. Pediatr Int 2013; 55:661-3. [PMID: 24134759 DOI: 10.1111/ped.12169] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 02/14/2013] [Accepted: 03/12/2013] [Indexed: 12/01/2022]
Abstract
Congenital diarrheal disorders consist of a variety of chronic enteropathies. There are approximately 30 different diseases that can be classified into four groups according to the mechanisms involved in pathogenesis: (i) absorption and transport of nutrients and electrolytes; (ii) enterocyte differentiation and polarization; (iii) enteroendocrine cell differentiation; and (iv) modulation of the intestinal immune response. Affected patients often present with life-threatening diarrhea, in the first few weeks of life. A new disorder, enteric anendocrinosis, which is characterized by severe malabsorptive diarrhea and a lack of intestinal enteroendocrine cells has recently been described in six patients with recessively inherited mutations in the Neurogenin-3 gene. In this report we describe a seventh case with a review of the literature.
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Affiliation(s)
- Ersin Sayar
- Department of Pediatric Gastroenterology, Akdeniz University Faculty of Medicine, Antalya, Turkey
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Comak E, Dogan SC, Uslu Gokceoglu A, Keser I, Artan R, Yilmaz A, Bilgen T, Sayar E, İslek A, Koyun M, Akman S. SAT0437 Mediterranean Fever Gene: Evaluation of Clinical Presentations in Turkish Children. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Comak E, Dogan SC, Uslu Gokceoglu A, Keser I, Artan R, Yilmaz A, Bilgen T, Sayar E, İslek A, Koyun M, Akman S. AB0680 Prevelance of mefv gene mutations in children with celiac disease. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.3002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sahin S, Sayar E, Kaynak MS, Hincal AA. Hepatic disposition of trimethoprim and sulfamethoxazole. Methods Find Exp Clin Pharmacol 2008; 30:135-140. [PMID: 18560629 DOI: 10.1358/mf.2008.30.2.1116311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hepatic disposition of trimethoprim (TMP) and sulfamethoxazole (SMX) and the liver distributional volumes were investigated in the in situ perfused rat liver preparation. Perfusion experiments were conducted using Krebs-bicarbonate buffer delivered via the portal vein (15 ml/min) in a single-pass mode. Erythrocytes (intravascular marker) and Evans blue (extracellular marker) were used for the estimation of liver distributional volumes, and desiccation and freeze-drying methods were used for the estimation of liver water content. TMP and SMX were administered together as a bolus in the presence (1%) and absence of protein. Although SMX profiles displayed a characteristic sharp peak followed by a slower eluting tail in all cases, TMP profiles were dependent on protein; in the absence of protein, the early sharp peak was replaced by a flatter profile with a later peak. Fractional effluent recovery (F; 0.77 vs. 0.82) and hepatic clearance (CL(H); 3.44 vs. 2.70 ml/min) for TMP were not influenced by albumin; with SMX, F increased (0.32 vs. 0.60) and CL(H) decreased (10.2 vs. 6.0 ml/min) with an increase in the perfusate protein concentration. Hepatic extraction of TMP was low (<0.30), whereas it was intermediate (<0.70) for SMX. In addition, distributional volumes and total water content of the liver were successfully determined.
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Affiliation(s)
- S Sahin
- Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.
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