Paper Information

Journal:   MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI)   2018 , Volume 32 , Number 1; Page(s) 0 To 0.
 
Paper: 

Levels of total IgA and IgA subclasses in the serum of chronic rhinosinusitis patients

 
DOI: 

10.14196/mjiri.32.94

 
Author(s):  Aazami Hossein, SEIF FARHAD, GHALEHBAGHI BABAK, MOHEBBI ALIREZA, AHMADI ASLAN, BABAHEIDARIAN PEGAH, Zinat Entezami Kobra, KHOSHMIRSAFA MAJID, Ghalehbaghi Sahand, FALAK REZA*
 
* Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran / Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
 
Abstract: 
Background: Different inflammatory mechanisms take part in the immunopathogenesis of chronic rhinosinusitis (CRS). Immunoglobulin (Ig) A is the first-line defense in the airway tracts and other mucosal sites, but little is reported regarding its serum level in CRS patients. The purpose of current study is to determine the serum levels of total IgA, and its subclasses (IgA1, and IgA2) in CRS with nasal polyps (CRSwNP), CRS without nasal polyps (CRSsNP), and control groups. Methods: In this case-control study the serum levels of total IgA and IgA subclasses were determined by Nephelometry and ELISA methods, respectively. The difference of the median concentrations was analyzed with the Kruskal-Wallis test. Collected data were analyzed using SPSS and presented by GraphPad Prism software. Results: A total of 10 CRSwNP patient, 10 CRSsNP patients and 10 healthy controls participated in our study. The mean age of the groups were 38. 2± 12. 6, 25. 6± 10. 54, and 30. 1± 9. 5, respectively. The concentrations of total IgA were 156(120-165), 165 (149-173), and 172 (152. 8-184. 3) mg/dl, respectively. The concentrations of IgA1 were 107 (77. 9-169. 9), 156. 1(112. 8-175. 6), and 130. 4 (118. 8-175. 2) mg/dl, respectively. The concentrations of IgA2 were 26. 11 (18. 41-38. 11), 26. 96 (15. 48-38. 39), and 23. 2 (18. 42-31. 78) mg/dl, respectively. There was no significant difference in total IgA (p=0. 120), IgA1 (p=0. 397) and IgA2 (p=0. 925) serum levels among three groups. Conclusion: Our study showed there is no difference in total IgA and IgA subclasses in the serum of CRS patients in comparison to healthy controls.
 
Keyword(s): Chronic Rhinosinusitis,Nasal polyps,CRSsNP,CRSwNP,Serum IgA,Isotype switching
 
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