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Related Experiment Videos

Methylenetetrahydrofolate reductase polymorphism and pre-eclampsia

S Sohda1, T Arinami, H Hamada

  • 1Department of Obstetrics and Gynaecology, University of Tsukuba, Ibaraki, Japan.

Journal of Medical Genetics
|June 1, 1997
PubMed
Summary

The methylenetetrahydrofolate reductase (MTHFR) T677 variant is linked to higher pre-eclampsia risk. This common gene mutation may be a significant genetic factor in developing pre-eclampsia.

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Area of Science:

  • Genetics
  • Obstetrics
  • Molecular Biology

Background:

  • Maternal vascular disease is a risk factor for pre-eclampsia.
  • A common MTHFR gene mutation (C677T) reduces enzyme activity and increases homocysteine.
  • Elevated homocysteine is linked to vascular issues.

Purpose of the Study:

  • To investigate the association between the MTHFR T677 allele frequency and pre-eclampsia.
  • To determine if MTHFR genotype is a genetic risk factor for pre-eclampsia.

Main Methods:

  • PCR/RFLP method used for MTHFR genotyping.
  • Genotypes determined in pre-eclampsia patients, normal pregnant women, and healthy adults.
  • Allele frequencies compared between groups.

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Main Results:

  • The T677 allele frequency was significantly higher in pre-eclampsia patients compared to controls (p < 0.02).
  • The homozygous T677 genotype was also significantly increased in the pre-eclamptic group (p < 0.004).

Conclusions:

  • The T677 variant of the MTHFR gene is associated with an increased risk of pre-eclampsia.
  • This MTHFR gene variant represents a potential genetic risk factor for pre-eclampsia development.