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Dr. Abdel-Hakim Fouad Elwany :: Publications:

Title:
The association between allergic rhinitis and Polymorphism of Toll like receptors 2 & 4 genes
Authors: 1Abdelhakim F. Ghallab*, 2Rasha A. El sayed, 1Mostafa G. Sobhy
Year: 2021
Keywords: Allergic rhinitis, TLR2, TLR4, polymorphism, PCR-RFLP
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Abdel-Hakim Fouad Elwany_Vol30No3July2021.pdf
Supplementary materials Not Available
Abstract:

Background: Allergic rhinitis is atopic disorder, 10% to 25% of the population worldwide are suffering from it, The prevalence is increasing during the last 10 years. Objectives: To study the relationship among polymorphism of single nucleotide in TLR2 and TLR4 genes and the risk of allergic rhinitis disease. Methodology: This study was done on 60 patients suffering from allergic rhinitis and 30 healthy subjects as a control group from April 2019 to March 2020. The patients were collected from Otorhinolaryngology Department of Benha University Hospital. Test of Skin prick (SPT) was done to assess atopic state. Blood samples were collected to detect TLR gene polymorphism by Polymerase chain reaction-Restriction Fragment Length Polymorphism (PCR-RFLP). Results: The genotypic frequencies of TLR2 Arg753Gln showed increased frequency of the homozygous (GG) genotype among the controls (80%) more than the allergic rhinitis patients (30%). The heterozygous (AG) genotype was increased among the allergic rhinitis patients (62.5%) more than in the healthy group (15%) with OR =9.4, 95% CI (2.4-37.7) and significant P-value. Also, the homozygous mutant (AA) genotype has more trend in the patients (7.5%) than in the control subjects (5%), with OR = 0. 6, 95% CI (0.1-6.7) and non-significant P-value. The genotypic frequencies Statistical data in TLR4 Asp299Gly revealed that the homozygous (AA) genotype has more frequency in the controls (70%) than the allergic rhinitis patients (20%). The heterozygous (AG) genotype was more prevalent among the allergic rhinitis patients (65%) than the controls (30%) with OR =4.3, 95% CI (1.4-13.8) and significant P-value. Conclusion: GG genotype of TLR2 and AA genotype of TLR4 are least affected by allergic rhinitis disease and the major allele in both gene is protective against the disease.

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