Abstract
IntroductionIL4 pathway is known to upregulate IgE mediated immune responses and responsible for the manifestation of Atopic disorders. The current study was aimed to elucidate the genetic variations of Interleukin 4 (IL4) and Interleukin 4 receptor alpha (IL4R) genes and their possible association with atopic subjects. MethodsThe well-designed questionnaire was used to collect the subject demographic and clinical details. Biochemical parameters were analysed using Chemiluminescent Immunoassay (CLIA) technique. The genotyping was performed using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP). ResultsWe observed a statistically significant difference of serum Immunoglobulin-E (IgE) levels among cases and controls (P<0.05). Subjects harbouring the variant genotypes of I50V and Q576R single nucleotide polymorphisms (SNPs) in IL4R gene showed statistically differential risk towards atopic disorders. However, the variants genotype of 70 bp VNTR polymorphism in IL4 gene showed a protective role towards in predisposition to Atopy. On stratification, the above genetic variants had a significant impact on modifiable and non-modifiable factors associated with the disease. ConclusionOur study demonstrates that increased IgE levels and IL4 gene variants (I50V and Q576R) are significantly associated towards predisposition to allergic disorders in this study population.
Published Version
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