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Dergiler / Annals of Medical Research / 2022 / Cilt: 29 - Sayı: 4

Is the MTHFR C677T variant a genetic risk factor in the etiology of autism spectrum disorder? Is it alone or by combined with rare variants of the PHGDH gene?

Burak Kaan KASAP
Çilem BİLGİNER
Gökhan YILDIZ
Bayram TORAMAN
Sayfa
334–340
Yayın Tarihi
2022-10-12
DOI
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Conclusion: No data were found to support that the MTHFR C677T variant alone or in combination with rare variants of the PHGDH gene is a genetic risk factor in the etiology of ASD.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Aim: Autism spectrum disorder (ASD) is a group of diseases characterized by restricted interests, speech disorders, lack of reciprocal social communication.
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Temel Bulgular & Veri:The C677T in the methylenetetrahydrofolate reductase (MTHFR) gene has been associated with the increased genetic liability for ASD in many studies.
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Sonuç & Katkı:Conclusion: No data were found to support that the MTHFR C677T variant alone or in combination with rare variants of the PHGDH gene is a genetic risk factor in the etiology of ASD.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

Aim: Autism spectrum disorder (ASD) is a group of diseases characterized by restricted interests, speech disorders, lack of reciprocal social communication. Genetic factors are predominantly responsible for the etiology of ASD. ASD genetics is complex and heterogeneous, and a variety of genetic factors has been associated with ASD. The C677T in the methylenetetrahydrofolate reductase (MTHFR) gene has been associated with the increased genetic liability for ASD in many studies. In the present study, we asked whether the MTHFR C677T variant increases the risk of ASD alone or in combination with rare harmful SNVs (MAF values are ≤ 0.001) on the phosphoglycerate dehydrogenase gene (PHGDH) in the genetic etiology of ASD. Materials and Methods: Two hundred twenty-two patients with ASD and 323 neurotypical controls were included in this study. PCR and Restriction Fragment Length Polymorphism method was used for screening the C677T. The PHGDH gene was scanned in the groups by targeted next-generation sequencing carrying C677T variant as homo-or heterozygous. Allele and genotype distributions of the C677T were analyzed by using the chi-square test. Genotype distributions were analyzed according to all four possible genetic models; homozygote (TT vs CC), heterozygote (CT vs CC), dominant (TT+CT vs CC), and recessive (TT vs CT+CC). Results: There was not any significant difference in terms of C and T allele distributions between ASD and controls (T vs C: OR = 1.16, 95% CI = 0.89-1.5, p > 0.05). There were not any significant different distributions of the 4 possible genotypes. In possible combined effects of the C677T and rare and possibly harmful SNVs of the PHGDH in the genetic etiology of ASD, we could not find any differences between patients and controls. Conclusion: No data were found to support that the MTHFR C677T variant alone or in combination with rare variants of the PHGDH gene is a genetic risk factor in the etiology of ASD.

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Bu Makaleye Atıf Yap

KASAP, B. K., BİLGİNER, Ç., YILDIZ, G., TORAMAN, B. (2022). Is the MTHFR C677T variant a genetic risk factor in the etiology of autism spectrum disorder? Is it alone or by combined with rare variants of the PHGDH gene?. Annals of Medical Research, Cilt: 29 - Sayı: 4, 334–340. https://ajindex.com/articles/445599

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