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Exposure to Gestational Diabetes Mellitus (GDM) alters DNA methylation in placenta and fetal cord blood by Zain Awamleh; Darci T. Butcher; Anthony Hanley; Ravi Retnakaran; Larissa Haertle; Thomas Haaf; Jill Hamilton; Rosanna Weksberg is a Medicine article available to read on EtoBox.
What is Exposure to Gestational Diabetes Mellitus (GDM) alters DNA methylation in placenta and fetal cord blood about?
## Background: Fetal exposure to maternal gdm increases offspring risk for adult-onset metabolic syndromes. epigenetic modifications such as dna methylation are modulators for fetal metabolic programming and susceptibility to adult-onset disease. this study investigates genome-wide dna methylation in gdm exposed cord blood and placenta. ## Methods: Oral glucose tolerance testing between 24 and 28 weeks of pregnancy was used to determine severity of glucose intolerance. we measured dna methylation (dnam) using the illumina infinium 450 k array in 42 fetal cord blood and 36 placenta samples. ## Results: We identified 662 and 99 cpg sites in gdm placenta and cord blood, respectively at p-value 5% after adjustment for confounders. annotated sites for ahrr and ptprn2 were common to cord blood and placenta. adding published gdm cord blood dnam data we segregated patients based on treatment (diet only vs. +insulin) and identified altered cpg sites to be unique to each gdm treatment group. ## Conclusion: Consistency in findings with other studies provides evidence for the role of dnam in placental and fetal responses to hyperglycemia. however, segregating dnam analysis of gdm samples base
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- Author
- Zain Awamleh; Darci T. Butcher; Anthony Hanley; Ravi Retnakaran; Larissa Haertle; Thomas Haaf; Jill Hamilton; Rosanna Weksberg
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Medicine (Health Sciences)