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Cell Journal، جلد ۱۸، شماره ۴، صفحات ۵۴۰-۵۴۶
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عنوان انگلیسی RORA and Autism in The Isfahan Population: Is There An Epigenetic Relationship
چکیده انگلیسی مقاله Objective: Autism is a neurodevelopmental disorder characterized by difficulty in verbal and non-verbal communication, impaired social interaction, and restricted and repetitive behavior. It has been recently introduced as a multigenic disorder with significant epigenetic effects on its pathology. Recently, epigenetic silencing of retinoic acid receptorrelated orphan receptor alpha (RORα) gene (which has an essential role in neural tissue development) was shown to have occurred in autistic children due to methylation of its promoter region. This may thus explain a significant part of the molecular pathogenesis of autism. Therefore, we aimed to confirm this finding by implementing a case-control (experimental) study in the population of Isfahan. Materials and methods: The methylation status of a 136 bp sequence of a GpG island (encompassing 13 CpG sites) in the RORA promoter region (positions -200 to -64) as an experimental study was examined in the lymphocyte cells of 30 autistic children after sodium bisulfite treatment using the melting curve analysis-methylation (MCA-Meth) assay compared with normal children. Also, quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) analysis was used to estimate the level of mRNA transcripts and to evaluate MCA-Meth analysis results. Results: This study revealed no methylation in the examined promoter regions in both autistic and normal children, with the melting curve of all studied samples being comparable to that of the non-methylated control. The results of MCA-Meth analysis were also consistent with qRT-PCR results. We therefore observed no significant difference in the levels of RORα transcripts in the blood lymphocytes between autistic and healthy children. Conclusion: The methylation of the RORA promoter region may not be considered as a common epigenetic risk factor for autism in all populations. Hence, the molecular pathogenesis of autism remains unclear in the population investigated.
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نویسندگان مقاله منصور صالحی | mansoor salehi


الهه کمالی | elahe kamali


مژگان کار احمدی | mojgan karahmadi


سید محمد موسوی | seyyed mohammad mousavi


نشانی اینترنتی http://celljournal.org/journal/article/abstract/4720
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/16/article-16-367049.pdf
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