Document Type : Original Article (s)
                            
                        
                                                    Authors
                            
                                                            
                                                                            1
                                                                        Professor, Department of Immunology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran                                
                                                            
                                                                            2
                                                                        Department of Immunology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran                                
                                                            
                                                                            3
                                                                        Assistant Professor, Cellular and Molecular Immunology Research Center AND Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            4
                                                                        Associate Professor, Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            5
                                                                        Subspecialist in Asthma, Allergy and Clinical Immunology, Department of Immunology, School of Medicine, Isfahan University of Medical Sciences Isfahan, Iran                                
                                                            
                                                                            6
                                                                        Professor, Department of Genetics and Molecular Biology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran                                
                                                            
                                                                            7
                                                                        Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran                                
                                                            
                                                                            8
                                                                        Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran                                
                            
                                                
                        
                            Abstract
                            Background: A member of a T-cell immunoglobulin (Ig) domain and mucin domain (TIM) gene family, TIM-1, in 5q31-33 region is shown to be correlated with development of T helper-2 (TH2) cells and allergic diseases. Polymorphism insertion/deletion (ins/del) of 5383-5397 may affect the length of TIM-1 mucin domain. The aim of this study was to investigate the association of polymorphism insertion/deletion (ins/del) 5383-5397 and susceptibility to asthma in Chaharmahal va Bakhtiari Province, Iran.Methods: Polymerase chain reaction (PCR) and polyacrylamide gel electrophoresis (PAGE) were used for investigating the presence of (ins/del) 5383-5397 polymorphism in 300 patients with asthma and healthy controls. Total IgE was measured via the enzyme-linked immunosorbent assay (ELISA) technique in their serum samples as well.Findings: Significant associations were found between the insertion/insertion genotype in 5383-5397 insertion/deletion polymorphism with both asthma and levels of total serum IgE in patients with asthma (P < 0.05). Furthermore, we found that the frequency of the deletion allele is significantly lower in patients with asthma.Conclusion: Based on these findings, we identified a significant association between 5383-5397 ins/del polymorphism with asthma and with total serum IgE levels in Chaharmahal va Bakhtiari Province population.
                        
                        
                        
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