• Mutlu Karkucak, Emel Başkan Bülbül, Hakan Turan, Tahsin Yakut, Sevil Toka, and Hayriye Sarıcaoğlu.
• Department of Medical Genetics, Faculty of Medicine, Uludağ University, Bursa, Turkey.
• Balkan Med J. 2012 Sep 1; 29 (3): 310-3.

ObjectiveMonnose-Binding lectin (MBL) appears to play an important role in the immune system. The genetic polymorphisms in the MBL2 gene can result in a reduction of serum levels, leading to a predisposition to recurrent infection. The aim of this study is to investigate the influence of a polymorphism in codon 54 of the MBL2 gene on the susceptibility to Erythema Multiforme, Stevens-Johnson Syndrome and Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis Overlap Syndrome (EM, SJS and SJS/TEN overlap syndrome).Material And MethodsOur study included 64 patients who were clinically and/or histopathologically diagnosed with EM, SJS, and SJS/TEN overlap syndrome and 66 healthy control subjects who were genotyped for the MBL2 gene codon 54 polymorphism using the PCR-RFLP method. For all statistical analyses, the level of significance was set at p<0.05.ResultsThe prevalence of the B allele was 18% in the EM, SJS and SJS/TEN patient groups and 13% in the control group. No significant differences in allele frequencies of any polymorphism were observed between the patient and control groups, although the B allele was more frequent in the patient groups (p=0.328).ConclusionOur results provide no evidence of a relationship between MBL2 gene codon 54 polymorphism and the susceptibility to EM, SJS and SJS/ TEN overlap syndrome. However, these findings should be confirmed in studies with a larger sample size.

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