{"title":"Evaluation of DNA damages in congenital hearing loss patients","authors":"Özge Çağlar , Hayal Çobanoğlu , Atilla Uslu , Akın Çayır","doi":"10.1016/j.mrfmmm.2021.111744","DOIUrl":null,"url":null,"abstract":"<div><p>In the current study, we aimed to compare the level of genetic damages measured as micronucleus (MN), nucleoplasmic bridge (NPB), and nuclear bud formation (NBUD) in congenital hearing loss patients (n = 17) and control group (n = 24). The cytokinesis-blocked micronucleus assay (CBMN) was applied to the blood samples to measure the frequency of the markers in both groups. The frequencies of MN of hearing loss patients were found to be consistently significantly higher than those obtained for the control group (<em>p</em> < 0.0001). Similarly, we found significantly higher frequency of NPB in patients was obtained for the patient group (<em>p</em> < 0.0001). Finally, the frequencies of NBUD in patients is significantly higher than the level measured in the control group (<em>p</em> < 0.0001). Furthermore, the age-adjusted MNL, BNMN, NPB, and NBUD frequencies in the patients were significantly higher than those obtained in the control group. We observed that the frequency of MN in patients was positively correlated with NBUD frequency which may indicate a common mechanism for these biomarkers in the patient group. We found, for the first time, that there were statistically significant higher levels of MN, NPB, and NBUD in sensorineural hearing loss patients. Since the markers we evaluated were linked with crucial diseases, our findings might suggest that sensorineural hearing loss patients are susceptible to several crucial diseases, especially cancer. Furthermore, the results demonstrated the significance of the MN, NPB, and NBUD level and thus provides a potential marker for the diagnosis of congenital hearing loss patients.</p></div>","PeriodicalId":49790,"journal":{"name":"Mutation Research-Fundamental and Molecular Mechanisms of Mutagenesis","volume":"822 ","pages":"Article 111744"},"PeriodicalIF":1.5000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.mrfmmm.2021.111744","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mutation Research-Fundamental and Molecular Mechanisms of Mutagenesis","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0027510721000075","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
In the current study, we aimed to compare the level of genetic damages measured as micronucleus (MN), nucleoplasmic bridge (NPB), and nuclear bud formation (NBUD) in congenital hearing loss patients (n = 17) and control group (n = 24). The cytokinesis-blocked micronucleus assay (CBMN) was applied to the blood samples to measure the frequency of the markers in both groups. The frequencies of MN of hearing loss patients were found to be consistently significantly higher than those obtained for the control group (p < 0.0001). Similarly, we found significantly higher frequency of NPB in patients was obtained for the patient group (p < 0.0001). Finally, the frequencies of NBUD in patients is significantly higher than the level measured in the control group (p < 0.0001). Furthermore, the age-adjusted MNL, BNMN, NPB, and NBUD frequencies in the patients were significantly higher than those obtained in the control group. We observed that the frequency of MN in patients was positively correlated with NBUD frequency which may indicate a common mechanism for these biomarkers in the patient group. We found, for the first time, that there were statistically significant higher levels of MN, NPB, and NBUD in sensorineural hearing loss patients. Since the markers we evaluated were linked with crucial diseases, our findings might suggest that sensorineural hearing loss patients are susceptible to several crucial diseases, especially cancer. Furthermore, the results demonstrated the significance of the MN, NPB, and NBUD level and thus provides a potential marker for the diagnosis of congenital hearing loss patients.
期刊介绍：
Mutation Research (MR) provides a platform for publishing all aspects of DNA mutations and epimutations, from basic evolutionary aspects to translational applications in genetic and epigenetic diagnostics and therapy. Mutations are defined as all possible alterations in DNA sequence and sequence organization, from point mutations to genome structural variation, chromosomal aberrations and aneuploidy. Epimutations are defined as alterations in the epigenome, i.e., changes in DNA methylation, histone modification and small regulatory RNAs.
MR publishes articles in the following areas:
Of special interest are basic mechanisms through which DNA damage and mutations impact development and differentiation, stem cell biology and cell fate in general, including various forms of cell death and cellular senescence.
The study of genome instability in human molecular epidemiology and in relation to complex phenotypes, such as human disease, is considered a growing area of importance.
Mechanisms of (epi)mutation induction, for example, during DNA repair, replication or recombination; novel methods of (epi)mutation detection, with a focus on ultra-high-throughput sequencing.
Landscape of somatic mutations and epimutations in cancer and aging.
Role of de novo mutations in human disease and aging; mutations in population genomics.
Interactions between mutations and epimutations.
The role of epimutations in chromatin structure and function.
Mitochondrial DNA mutations and their consequences in terms of human disease and aging.
Novel ways to generate mutations and epimutations in cell lines and animal models.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
