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Fetal gastroschisis: Maternal and fetal methylation profile
Author(s) -
Freitas Amanda Brasil de,
Francisco Rossana Pulcineli Vieira,
Centofanti Sandra Frankfurt,
Damasceno Jullian Gabriel,
Chehimi Samar Nasser,
OsmundoJunior Gilmar de Souza,
Kulikowski Leslie Domenici,
Brizot Maria de Lourdes
Publication year - 2021
Publication title -
prenatal diagnosis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.956
H-Index - 97
eISSN - 1097-0223
pISSN - 0197-3851
DOI - 10.1002/pd.5881
Subject(s) - gastroschisis , fetus , umbilical cord , dna methylation , methylation , andrology , biology , cord blood , pregnancy , obstetrics , medicine , genetics , gene , gene expression
Objective The purpose of this study was to describe the genomic deoxyribonucleic acid (DNA) methylation profile in fetuses with gastroschisis, determine whether the profile was inherited, and investigate any possible correlations with maternal risk factors. Method Genome‐wide DNA methylation analysis of 96 blood samples was performed using the Illumina Human Methylation 850K BeadChip. The blood samples were collected as follows: 32 from the umbilical cord of fetuses with gastroschisis, 32 from their respective mothers, 16 from the umbilical cord of fetuses without malformation, and 16 from their respective mothers. Results The differential DNA methylation analysis showed a significant difference between the groups. The enrichment analysis resulted in 12 sites related to T‐cell activation ( p = 0.0128). The sites with different methylation status contained 10 genes, three of which were related to the beta‐2‐microglobulin gene. The methylation profile observed in the fetuses with gastroschisis was not inherited from the mothers. In addition, there was no association between maternal urinary tract infection, smoking, and alcohol use and different methylated sites. Conclusion We established the methylation profile of gastroschisis fetuses, which differs from that of normal fetuses. The profile was not inherited and did not correlate with maternal risk factors.