G241R and K469E polymorphisms of intercellular adhesion molecule 1 (ICAM-1) could predispose to Hashimoto thyroiditis |
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Authors: | Fevziye Emin Akman Müge Kanmaz-?zer Pervin Vural Ay?enur ?zderya Berrin Karada? Semra Do?ru-Abbaso?lu Müjdat Uysal |
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Institution: | 1. Department of Biochemistry, Istanbul Faculty of Medicine, Istanbul University, ?apa, 34093, Istanbul, Turkey 2. Division of Endocrinology, Department of Internal Medicine, ?i?li Etfal Research and Training Hospital, ?i?li, Istanbul, Turkey
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Abstract: | This study examined firstly the possible association of G241R and K469E single nucleotide polymorphisms (SNPs) of ICAM-1 gene with the occurrence of Hashimoto thyroiditis (HT). G241R and K469E SNPs in DNA from peripheral blood leukocytes of 190 HT and 247 healthy controls were investigated by real-time PCR combined with melting curve analysis using fluorescence-labeled hybridization probes. There was a significant increase of ICAM-1 241R allele frequency in patients with HT compared with healthy controls (P?=?0.04, OR?=?1.84, 95?% CI?=?1.00–3.37). Regarding ICAM-1 K469E polymorphism, patients homozygous for E allele had 1.73–fold increased risk for developing HT according to KK homozygotes (P?=?0.04, 95?% CI?=?1.00–3.01). The 469E allele frequency was higher in HT patients according to controls, however the difference was at borderline significance (P?=?0.05, OR?=?1.30, 95?% CI?=?1.00–1.70). No associations between polymorphisms and HT phenotypes were observed. We suggest that the G241R and K469E SNPs of ICAM-1 gene may be related to occurrence of HT. However, more studies with larger sample size including other loci of the ICAM-1 gene are necessary to support our findings before any definite statement can be made about the relationship between HT and ICAM-1 polymorphism. |
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