The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients

Objective: Multiple sclerosis often causes neurological disability and reduced quality of life. Genetic biomarkers are important tools for the diagnosis and prognoses of diseases. This study has been conducted to explore the haplotype frequencies formed by rs4626 and rs7221352 single-nucleotide poly...

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Main Authors: Fulya Başoğlu Köseahmet, Candan Eker, Musa Öztürk, Şebnem Özdemir, Ayhan Köksal, Savim Baybaş, Tuba Günel
Format: Article
Language:English
Published: Istanbul University Press 2022-12-01
Series:European Journal of Biology
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Online Access:https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/E89ECD126793478EB9D21F6FBC8CB038
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author Fulya Başoğlu Köseahmet
Candan Eker
Musa Öztürk
Şebnem Özdemir
Ayhan Köksal
Savim Baybaş
Tuba Günel
author_facet Fulya Başoğlu Köseahmet
Candan Eker
Musa Öztürk
Şebnem Özdemir
Ayhan Köksal
Savim Baybaş
Tuba Günel
author_sort Fulya Başoğlu Köseahmet
collection DOAJ
description Objective: Multiple sclerosis often causes neurological disability and reduced quality of life. Genetic biomarkers are important tools for the diagnosis and prognoses of diseases. This study has been conducted to explore the haplotype frequencies formed by rs4626 and rs7221352 single-nucleotide polymorphisms (SNPs) in the coding region variant (rs4626) and 5' upstream region intron variant (rs7221352) of the transducer of the ERBB2.1 (TOB1) gene in individuals with relapsing remitting multiple sclerosis. Materials and Methods: Thirty patients with an Expanded Disability Status Scale (EDSS) score<3, 30 patients with EDSS≥5, and 30 healthy controls participated in the study. The TOB1 rs4626 T/C and rs7221352 G/A single-base variations were applied using the quantitative real-time polymerase chain reaction method in accordance with the TaqMan SNP Genotyping Assays instructions. Results: The genotype frequencies of TOB1 rs4626 TT/TC/CC were respectively 3.3%, 53.3%, and 43.3% in the EDSS<3 cases and 10%, 53.3%, and 36.7% in the EDSS≥5 cases. The genotype frequencies of TOB1 rs7221352 GG/AG/AA were respectively 3.3%, 86.7%, and 10% in the EDSS<3 cases and 10%, 70%, and 20% in the EDSS≥5 cases. With respect to the estimated values in the study cohort, allelic variant frequency was higher in the patient group for both SNP variants (p<0.001). Conclusion: The presence of variant alleles in the rs4626 and rs7221352 polymorphisms in TOB1 may have a role in the disease immunopathogenesis. Further investigations involving larger groups are required to understand the effects of TOB1.
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spelling doaj-art-0e8fbb7bfbf44a40a41fa8cac16150c72025-08-20T02:10:39ZengIstanbul University PressEuropean Journal of Biology2618-61442022-12-0181219720510.26650/EurJBiol.2022.1191215123456The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis PatientsFulya Başoğlu Köseahmet0https://orcid.org/0000-0002-9277-6644Candan Eker1https://orcid.org/0000-0001-9049-6131Musa Öztürk2https://orcid.org/0000-0001-9652-384XŞebnem Özdemir3https://orcid.org/0000-0001-6668-6285Ayhan Köksal4https://orcid.org/0000-0003-4664-2167Savim Baybaş5https://orcid.org/0000-0003-1724-9577Tuba Günel6https://orcid.org/0000-0003-3514-5210Sağlık Bilimleri Üniversitesi, Istanbul, Turkiyeİstanbul Üniversitesi, İstanbul, TürkiyeSağlık Bilimleri Üniversitesi, Istanbul, Turkiyeİstinye Üniversitesi, Istanbul, TurkiyeSağlık Bilimleri Üniversitesi, Istanbul, TurkiyeSağlık Bilimleri Üniversitesi, Istanbul, Turkiyeİstanbul Üniversitesi, İstanbul, TürkiyeObjective: Multiple sclerosis often causes neurological disability and reduced quality of life. Genetic biomarkers are important tools for the diagnosis and prognoses of diseases. This study has been conducted to explore the haplotype frequencies formed by rs4626 and rs7221352 single-nucleotide polymorphisms (SNPs) in the coding region variant (rs4626) and 5' upstream region intron variant (rs7221352) of the transducer of the ERBB2.1 (TOB1) gene in individuals with relapsing remitting multiple sclerosis. Materials and Methods: Thirty patients with an Expanded Disability Status Scale (EDSS) score<3, 30 patients with EDSS≥5, and 30 healthy controls participated in the study. The TOB1 rs4626 T/C and rs7221352 G/A single-base variations were applied using the quantitative real-time polymerase chain reaction method in accordance with the TaqMan SNP Genotyping Assays instructions. Results: The genotype frequencies of TOB1 rs4626 TT/TC/CC were respectively 3.3%, 53.3%, and 43.3% in the EDSS<3 cases and 10%, 53.3%, and 36.7% in the EDSS≥5 cases. The genotype frequencies of TOB1 rs7221352 GG/AG/AA were respectively 3.3%, 86.7%, and 10% in the EDSS<3 cases and 10%, 70%, and 20% in the EDSS≥5 cases. With respect to the estimated values in the study cohort, allelic variant frequency was higher in the patient group for both SNP variants (p<0.001). Conclusion: The presence of variant alleles in the rs4626 and rs7221352 polymorphisms in TOB1 may have a role in the disease immunopathogenesis. Further investigations involving larger groups are required to understand the effects of TOB1.https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/E89ECD126793478EB9D21F6FBC8CB038tob1multiple sclerosissingle-nucleotide polymorphismsallelic variationquantitative real-time pcr
spellingShingle Fulya Başoğlu Köseahmet
Candan Eker
Musa Öztürk
Şebnem Özdemir
Ayhan Köksal
Savim Baybaş
Tuba Günel
The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients
European Journal of Biology
tob1
multiple sclerosis
single-nucleotide polymorphisms
allelic variation
quantitative real-time pcr
title The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients
title_full The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients
title_fullStr The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients
title_full_unstemmed The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients
title_short The Role of rs4626 and rs7221352 Polymorphisms on the TOB1 Gene in Turkish Relapsing-Remitting Multiple Sclerosis Patients
title_sort role of rs4626 and rs7221352 polymorphisms on the tob1 gene in turkish relapsing remitting multiple sclerosis patients
topic tob1
multiple sclerosis
single-nucleotide polymorphisms
allelic variation
quantitative real-time pcr
url https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/E89ECD126793478EB9D21F6FBC8CB038
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