Frequency of MTHFR GENE C677T Polymorphism for Non-Syndromic Autism Spectrum Disorder Patients

Main Authors: Laksono, Bremmy, Maskoen, Ani Melani, Winarni, Tri Indah, Taufik, Syarief, Faradz, Sultana MH
Format: Article info application/pdf Journal
Bahasa: eng
Terbitan: Faculty of Medicine, Diponegoro University , 2015
Subjects:
ASD
Online Access: https://ejournal2.undip.ac.id/index.php/jbtr/article/view/61
https://ejournal2.undip.ac.id/index.php/jbtr/article/view/61/149
Daftar Isi:
  • Background: The folate metabolism is a pathway that may involve in the non-syndromic Autism Spectrum Disorder (ASD). Methylenetetrahydrofolate reductase enzyme has a key role in folate metabolism. The C677T polymorphism of MTHFR gene could reduce the effectiveness of the enzyme.Objectives: To evaluate the frequency of MTHFR geneC677T polymorphism for non-syndromic ASD patients.Method: Thirty-four DNA samples were taken from each group. PCR mixture was consisted of 1μL DNA, 2.5μL PCR buffer, 0.5μL dNTP, 1.5μL MgCL2, 0.125μLTaqenzyme, 0.5μLofforwardandreverseprimerandaquabidesttoreach a volume of 25 μL. The PCR profiles were initiation 95oC for 5 min, denaturation 94oC for 1min, annealing 55oCfor 45 seconds, and elongation 72oC for30 seconds. The cycles were done in 35 times an dfinal elongation was at 72oC for 5min. The PCR product was 198bp, and then digested by the Hinfl enzyme for 16hours at 37°C, and visualized using2%agarosegeland then electrophoresed for 30 minutes at 100 volts.Result: Non-syndromic ASD samples showed none had homozygote mutant type (677TT), 3 (8.8%) samples had heterozygote (677CT)and 31 (91.2%) samples had wild type (677CC). Meanwhile, normal control showed only 1 (2.9%)sample had homozygote mutant type(677TT), 9 (26.5%) samples had heterozygote (677CT)and 24 (70.6%) samples had wild type (677CC).Conclusion: The frequency of MTHFR geneC677T polymorphism in patients with non-syndromic ASD and controls are not significantly different.