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Determination of blood cell gene expression profiles during early life of premature infants who develop bronchopulmonary dysplasia (BPD)

ABSTRACT: Determination of blood cell gene expression profiles during early life of premature infants who develop bronchopulmonary dysplasia (BPD)

PROVIDER: PRJNA908844 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22536200.fastq.gz	Fastqsanger.gz
	SRR22536300.fastq.gz	Fastqsanger.gz
	SRR22536201.fastq.gz	Fastqsanger.gz
	SRR22536301.fastq.gz	Fastqsanger.gz
	SRR22536202.fastq.gz	Fastqsanger.gz

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Cord blood gene expression profiles of bronchopulmonary dysplasia in preterm infants

2022-05-05 | GSE188944 | GEO

Cord blood methylation profiles of bronchopulmonary dysplasia in preterm infants

Project description:Bronchopulmonary dysplasia (BPD) is a lung disease in premature infants characterized by impaired pulmonary development which persists into later life. While advances in neonatal care have improved survival rates of premature infants, cases of BPD haves been increased. Therapeutic options are limited for prevention and treatment. This study was designed to explore the relationship between gestational age (GA), birth weight and estímate blood cell-type composition in premature infants and to elucidate early epigenetic biomarkers associated with BPD. Cord blood DNA from preterm neonates that went on to develop BPD (n = 14) or not (nonBPD, n = 93) was applied to Illumina 450K methylation arrays. Using DNA methylation analysis of cord blood DNA, we investigated association of GA and birth weight with the estimated distribution of cord blood cell types, particularly the nucleated red blood cell (NRBC) in a pilot-size cohort of preterm infants with or without BPD. We describe changes in methylation-based estimates of blood cell-type composition in relation to GA and birth weight. After adjusting for covariates (GA, birth weight, cell type proportions, etc.) we identify differentially methylated CpGs and genes associated with BPD.

2022-05-05 | GSE188949 | GEO

Urine Proteomics for Noninvasive Monitoring of Biomarkers in Bronchopulmonary Dysplasia

Project description:Current techniques to diagnose and/or monitor critically ill neonates with bronchopulmonary dysplasia (BPD) require invasive sampling of body fluids, which can affect the health status of these frail neonate. We tested our hypotheses 1) it is feasible to use early urine samples from extremely low gestational age newborns at risk for bronchopulmonary dysplasia for proteomics, and 2) urine proteomics can confirm previously identified proteins and biomarkers associated with BPD without invasive sample collection. We developed a robust high throughput urine proteomics methodology that requires only 50 microliters of urine. We validated the methodology on urine collected within 72 hours of birth. Urine samples were collected from extremely low gestational age newborns (ELGANS) (gestational age (26 + 1.2) weeks) admitted to a single Neonatal Intensive Care Unit(NICU); half of whom eventually developed BPD, while the other half served as controls. Our high throughput urine proteomics approach clearly identified several BPD-associated changes in the urine proteome recapitulating expected blood proteome changes. Interestingly, sixteen identified urinary proteins are known targets of drugs approved by the Food and Drug Administration (FDA). Urine proteomics can be used for prediction of BPD risk. In addition to identifying numerous proteins implicated in BPD pathophysiology, previously found in invasively collected blood, tracheal aspirate, and broncho-alveolar lavage, urine proteomics also suggested novel potential therapeutic targets. Ease of access to urine for sequential proteomic evaluations could also allow for longitudinal monitoring of disease progression and impact of therapeutic intervention.

2022-04-04 | PXD028895 | Pride

Determination of blood cell gene expression profiles during early life of premature infants who develop bronchopulmonary dysplasia (BPD)

Project description:To investigate early blood biomarkers of BPD development, RNA from cord blood cells or peripheral blood cells of premature infants was subjected to RNA sequencing (RNA-Seq) and data were analyzed with 9 covariates including gestational age (GA), sex, birth weight (BW), estimated CD4+T cell%, CD8+T cell%, B cell%, monocyte%, granulocyte%, and nucleated red blood cell (NRBC)%. The effect of prolonged oxygen (>14 days O2) treatment in newborn intensive care unit on blood cell transcriptome was determined among nonBPD preterm infants.

2023-07-06 | GSE220135 | GEO

Epigenome-wide association study on peripheral blood DNA of bronchopulmonary dysplasia in preterm infants

Project description:Bronchopulmonary dysplasia (BPD) is a lung disease in premature infants characterized by impaired pulmonary development which persists into later life. While advances in neonatal care have improved survival rates of premature infants, cases of BPD haves been increased. Therapeutic options are limited for prevention and treatment. This study was designed to explore the relationship between gestational age (GA), birth weight and estímate blood cell-type composition in premature infants and to elucidate early epigenetic biomarkers associated with BPD. Peripheral blood DNA (at days 14 and 28) from preterm neonates that went on to develop BPD (n = 14) or not (nonBPD, n = 93) was applied to Illumina EPIC methylation arrays. Using DNA methylation analysis of cord blood DNA, we investigated association of GA and birth weight with the estimated distribution of cord blood cell types, particularly the nucleated red blood cell (NRBC) in a pilot-size cohort of preterm infants with or without BPD. We describe changes in methylation-based estimates of blood cell-type composition in relation to GA and birth weight. After adjusting for covariates (GA, birth weight, cell type proportions, etc.) we identify differentially methylated CpGs and genes associated with BPD at different time points.

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A genomewide association study for bronchopulmonary dysplasia using DNA pooling

Project description:Bronchopulmonary dysplasia (BPD) is the most common chronic respiratory disease in premature infants. Recent studies have highlighted the contribution of genetic factors to BPD susceptibility. Our aim was to identify the genetic variants associated to BPD, through a genomewide association study. Two discovery series were performed, using a DNA pooling-based strategy in Caucasian and black African neonates.

2011-11-22 | GSE22284 | GEO

Identification of Novel Biomarkers of Bronchopulmonary Dysplasia model

Project description:In order to study the gene expression changes in neonatal bronchopulmonary dysplasia (BPD) induced by hyperoxia, we used a rat model to detect the gene expression changes in the control group (A) and hyperoxia group (O) after birth.

2022-08-29 | GSE212098 | GEO

Post-transcriptional regulation of necroptosis gene EIF2AK2 in peripheral blood of bronchopulmonary dysplasia

Project description:Bronchopulmonary dysplasia (BPD) remains the most frequent chronic lung disease among infants, which involves multifactorial pathogenesis. Necroptosis represents a caspase-independent mode of programmed cell death, and its deregulation associates with lung diseases, but the mechanisms of necroptosis during BPD are indistinct. This work was conducted for unveiling the post-transcriptional regulatory mechanisms of necroptosis in BPD.

2024-02-21 | GSE219156 | GEO

RNA-seq of peripheral whole blood from ten healthy preterm infants and ten preterm infants with bronchopulmonary dysplasia

Project description:We procured peripheral whole blood from ten healthy preterm infants and ten preterm infants with bronchopulmonary dysplasia

2024-10-27 | E-MTAB-14506 | biostudies-arrayexpress

Early Angiogenic Proteins Associated with High Risk for Bronchopulmonary Dysplasia and Pulmonary Hypertension in Preterm Infants

Project description:Introduction: Early pulmonary vascular disease in preterm infants is associated with the subsequent development of bronchopulmonary dysplasia (BPD) and pulmonary hypertension (PH), however, mechanisms that contribute to or identify infants with increased susceptibility for BPD and/or PH are incompletely understood. Therefore, we tested if changes in circulating angiogenic peptides during the first week of life are associated with the later development of BPD and/or PH. We further sought to determine alternate peptides and related signalling pathways with the risk for BPD or PH. Methods: We prospectively enrolled infants with gestational age <34 weeks gestation and collected blood samples during their first week of life. BPD and PH were assessed at 36 weeks postmenstrual age. Samples were assayed for each of the 1121 peptides included in the SOMAscanTM technology, with subsequent pathway analysis. Results: Of 102 study infants, 82 had BPD and 13 had PH. Multiple angiogenic proteins (PF-4, VEGF121, ANG-1, BMP10, HGF, ANG2) were associated with the subsequent diagnosis of BPD, and FGF-19, PF-4, CTAP-III and PDGF-AA levels were associated with BPD severity. Early increases in BMP10 was strongly associated with the late risk for BPD and PH. Conclusion: We found that early alterations of circulating angiogenic peptides and others were associated with the subsequent development of BPD. We further identified peptides that were associated with BPD severity and BPD-associated PH, including BMP10. We speculate that proteomic biomarkers during the first week of life may identify infants at risk for BPD and/or PH to enhance care and research.

2020-01-15 | GSE121097 | GEO

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