Author/Authors :
Babaie, Delara Pediatric Pathology Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Daneshmandi, Zahra Department of Allergy and Clinical Immunology - Mofid Children’s Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Jafarian, Sara Department of Allergy and Clinical Immunology - Mofid Children’s Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Chavoshzadeh, Zahra Department of Allergy and Clinical Immunology - Mofid Children’s Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Mansouri, Mahboubeh Department of Allergy and Clinical Immunology - Mofid Children’s Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Rsouli, Shima Department of Immunology - School of Medicine - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Sayyari, Aliakbar Pediatric Gastroenterology - Hepatology and Nutrition Research Center - Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran. , Imanzadeh, Farid Pediatric Gastroenterology - Hepatology and Nutrition Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Dara, Naghi Pediatric Gastroenterology - Hepatology and Nutrition Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Rouhani, Pejman Pediatric Gastroenterology - Hepatology and Nutrition Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Khatami, Katayoun Pediatric Gastroenterology - Hepatology and Nutrition Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Kazemi-Aghdam, Maryam Pediatric Pathology Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Nilipour, Yalda Pediatric Pathology Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Khoddami, Maliheh Pediatric Pathology Research Center - Research Institute for Children’s Health - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Gholami, Reza Department of Gastroenterology - Taleghani Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Motaghinezhad, Reihane Department of Allergy and Clinical Immunology - Mofid Children’s Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Mesdaghi, Mehrnaz Department of Allergy and Clinical Immunology - Mofid Children’s Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Rasouli, Shima Department of Immunology - School of Medicine - Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract :
Background: Eosinophilic Gastrointestinal Disorders (EGID) are a heterogeneous group of gastrointestinal disorders, associated with an increase of the eosinophils in the gastrointestinal mucosal tissue. Regulatory T cells (Tregs), as a subset of T cells, have a proven prominent role in immunopathology and protection against allergic diseases. Also, they appear to play a role in EGID pathogenesis. In the present study, serum levels of Tumor Growth Factor (TGF)-β and interleukin (IL)-10 were measured in patients with EGID compared to patients with Gastroesophageal Reflux Disease (GERD) and healthy subjects.
Materials and Methods: A total of 34 patients with EGID, 23 with GERD, and 25 healthy controls were included in the study. The diagnoses of EGID and GERD were made based on the patients’ clinical symptoms, endoscopic findings, and biopsy confirmation. A questionnaire of demographic information, allergy history, as well as endoscopic-pathological and skin prick test results were completed and performed. The serum levels of TGF-β and IL-10 were measured using the ELISA method.
Results: Family history of allergic disorders in patients with EGID or GERD was significantly high compared to healthy controls (P=0.010, P=0.005, respectively). There was a statistically significant increase in serum levels of TGF-β1 (P=0.025), but no significant difference was observed in serum level of IL-10 among three groups. However, the serum level of IL-10 was significantly high in a subgroup of patients with upper gastrointestinal eosinophilic involvement compared to the healthy controls (P=0.018).
Conclusion: Significant increase in the serum level of IL-10 and TGF- β might be due to the Tregs dysfunction in EGID patients. Further studies should determine the role of Tregs in the pathogenesis of EGID.
