Personalized genotype markers of the atopic disorders phenotypes in children

Abstract

The goal of the study was to elucidate the impact of the single nucleotide variants rs11466749 of the thymic stromal lymphopoietin gene, rs_7216389 of the orsomucoid-1-like protein 3 gene, and rs10052957 of the human nuclear glucocorticoid receptor subfamily 3, group C, member 1 gene on the development of the mono-organic phenotype “atopic eczema” or the poly-organic “atopic eczema + allergic rhinitis/allergic rhino-conjunctivitis”. We recruited 101 patients into the main and 105 into control groups aged from 3 to 18 years old. Patients of the main group suffered from atopic eczema (58 children) and atopic eczema + allergic rhinitis/allergic rhino-conjunctivitis (43 children). Patients of the control group  suffered from the digestive tract pathology. Main group patients were genotyped for the A/A, A/G, G/G of rs11466749, C/T, C/C and T/T of rs_7216389 and A/A, A/G and G/G of rs10052957; patients of the control group were genotyped for the A/A, A/G, G/G of rs11466749, C/T, C/C and T/T of rs_7216389 by polymerase chain reaction in real time with restricted fragment length polymorphism. Results: no significant differences in rs11466749 among the main and control groups, the most common variant is A/A – 55.2% (mono-organic) and 55.8% (poly-organic); T/T rs_7216389 is significantly the most common in poly-organic phenotype – 39.5%; rs10052957: A/G variant is significantly most common in mono-organic phenotype – 51.7% and G/G – in the poly-organic phenotype – 62.8%. The G/G rs11466749 variant has a trending to significance direct 0.173 association and increased odds ratio = 5.85 (0.63-54.31) for the poly-organic phenotype and protective impact onto the mono-organic phenotype -0.173 (0.17 (0.02-1.59); T/T rs7216389 variant increases the risk of poly-organic phenotype: 0.227, odds ratio = 2,79 (1.14-6.85) and decreases the risk of mono-organic” phenotype: -0.227, 0.36 (0.15-0.88); A/G rs_10052957 variant significantly increases the risk the mono-organic phenotype: 0.215, odds ratio = 2.5 (1.08-5.56)) and decreases risk of poly-organic phenotype: 0.215, odds ratio = 0.4 (0.18-0.93); G/G rs_10052957 variant significantly increases the risk of the poly-organic phenotype: 0.263, odds ratio = 2.97 (1.31-6.74)) and decreases for the mono-organic phenotype: -0.263, odds ratio = 0.34 (0.15-0.76)). Genotype variant T/T rs_7216389 of the orsomucoid-1-like protein 3 gene significantly increases the risk of developing the poly-organic atopic phenotype by 2.79 times and protects against the mono-organic atopic phenotype by 0.34 times. G/G genotype variant of rs10052957 of the human glucocorticoid receptor subfamily, group C, member 1 gene significantly increases the risk of developing the poly-organic phenotype by 2.97 times, protecting against mono-organic atopic phenotype by 0.34 times.