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    To assess the association of C677T polymorphism of methylenetetrahydrofolate reductase (MTHFR) gene with autistic behavior and inheritance pattern of children patients. Ninety three autism patients were selected as the study group, whilst 93 healthy children were selected as the control group. The C677T genotype of the MTHFR gene was determined, and the correlation between the genotype and the autistic behavior and inheritance pattern were investigated. MTHFR gene C677T locus revealed three genotypes CC, CT and TT. Compared with the control group, the study group had fewer CC genotype but more TT genotype (P<0.05). Individuals with the three genotypes showed a statistically significant difference in the frequencies of four problem behaviors (P<0.05). Regression analysis showed that at least one T allele encoding the degree of 1 and 2 for the 4 problem behaviors that were statistically different. MTHFR gene C677T genotype was associated with autism under the recessive inheritance model and allelic inheritance model (P<0.05). The C677T polymorphism of the MTHFR gene is associated with autistic behaviors. Children with the TT genotype or T allele are at higher risk of developing autism, particularly direct gaze, complex limb movements, self-injurious behavior and hyperactivity 1 and 2 related with the degree of coding.

    Citation

    Shihao Xu, Shuang Men, Xulong Wang, Fangfang Zhan, Xiangdong Yuan. Association of MTHFR gene C677T polymorphism with problem behavior and inheritance pattern among children with autism]. Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics. 2022 Aug 10;39(8):898-902

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    PMID: 35929945

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