Detection of an intestinal cell DNA methylation signature in blood samples from neonates with necrotizing enterocolitis.

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Tác giả: Camille Boufford, Tianjiao Chu, Michaela Ednie, Lauren Frazer, Misty Good, Caitlin P Green, Lucas Tavares Naief, David Peters, Laken Ritzert, Patricia Shaw

Ngôn ngữ: eng

Ký hiệu phân loại: 697.72 Radiant panel heating

Thông tin xuất bản: England : Epigenomics , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 642330

BACKGROUND: Necrotizing enterocolitis (NEC) is an often fatal intestinal injury that primarily affects preterm infants for which screening tools are lacking. We performed a pilot analysis of DNA methylation in peripheral blood samples from preterm infants with and without NEC to identify potential NEC biomarkers. METHODS: Peripheral blood samples were collected from infants at NEC diagnosis ( RESULTS: Broad differences between NEC cases and controls were identified in distinct genomic elements. Differences between surgical NEC cases and controls were frequently associated with inflammation. Deconvolution analysis to identify cell type-specific DNA signatures revealed increases in ileal, vascular endothelial, and cardiomyocyte cell type proportions and decreases in colonic and neuronal cell type proportions in blood from NEC cases relative to controls. CONCLUSIONS: We identified marked differences in DNA methylation of peripheral blood samples from preterm infants with and without NEC. Increased ileal cell-specific methylation signatures in the blood of infants with NEC relative to controls, with a marked increase seen in surgical cases, provides rationale for further analysis of intestinal DNA methylation signatures as biomarkers of NEC.
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