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Polymorphisms of IL-17 and ICAM-1 and their expression in Guillain-Barré syndrome.
International Journal of Neuroscience 2017 August
PURPOSE: Guillain-Barré syndrome (GBS) is an acute inflammatory, autoimmune disorder of peripheral nervous system. Interleukin-17 (IL-17) and intercellular adhesion molecule-1 (ICAM-1) polymorphisms with higher expression levels have already been studied in many inflammatory and autoimmune diseases. However, the possible role of IL-17 and ICAM-1 polymorphisms in GBS remains unknown. Therefore, the current study investigated IL-17 (His161Arg and Glu126Gly) and ICAM-1 (Gly241Arg) polymorphisms.
MATERIALS AND METHOD: In this study, total 80 GBS patients and 75 normal healthy controls were included. IL-17 (His161Arg and Glu126Gly) and ICAM-1 (Gly241Arg) polymorphisms were performed using polymerase chain reaction -restriction fragment length polymorphism analysis. Further, the expression of ICAM-1 and IL-17 was determined by reverse-transcriptase PCR and enzyme-linked immunosorbent assay.
RESULTS: IL-17 (Glu126Gly) mutant and ICAM-1 (Gly241Arg) heterozygous genotypes were strongly associated with increased risk of GBS (p < 0.016; OR = 3.706, 95% CI = 1.28-10.67; p < 0.001; OR = 4.148, 95% CI = 2.119-8.119, respectively). IL-17 and ICAM-1 genes showed significantly higher expression in GBS when compared with healthy controls.
CONCLUSION: IL-17 and ICAM-1 polymorphisms showed significant association with GBS and their enhanced expressions have possible role in GBS development. IL-17 and ICAM-1 polymorphisms could be genetic markers to GBS susceptibility.
MATERIALS AND METHOD: In this study, total 80 GBS patients and 75 normal healthy controls were included. IL-17 (His161Arg and Glu126Gly) and ICAM-1 (Gly241Arg) polymorphisms were performed using polymerase chain reaction -restriction fragment length polymorphism analysis. Further, the expression of ICAM-1 and IL-17 was determined by reverse-transcriptase PCR and enzyme-linked immunosorbent assay.
RESULTS: IL-17 (Glu126Gly) mutant and ICAM-1 (Gly241Arg) heterozygous genotypes were strongly associated with increased risk of GBS (p < 0.016; OR = 3.706, 95% CI = 1.28-10.67; p < 0.001; OR = 4.148, 95% CI = 2.119-8.119, respectively). IL-17 and ICAM-1 genes showed significantly higher expression in GBS when compared with healthy controls.
CONCLUSION: IL-17 and ICAM-1 polymorphisms showed significant association with GBS and their enhanced expressions have possible role in GBS development. IL-17 and ICAM-1 polymorphisms could be genetic markers to GBS susceptibility.
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