Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Human milk microbiome, human milk oligosaccharide profiles, and infant gut microbiome in preterm infants diagnosed with necrotising enterocolitis

ABSTRACT: Mother’s own milk microbiome does not associate with necrotising enterocolitis in preterm infants

PROVIDER: PRJEB72536 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	ERR13583600_1.fastq.gz	Fastqsanger.gz
	ERR13583600_2.fastq.gz	Fastqsanger.gz
	ERR13583601_1.fastq.gz	Fastqsanger.gz
	ERR13583601_2.fastq.gz	Fastqsanger.gz
	ERR13583602_1.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 248

Similar Datasets

Human milk oligosaccharide DSLNT and gut microbiome in preterm infants predicts necrotising enterocolitis.

Project description:ObjectiveNecrotising enterocolitis (NEC) is a devastating intestinal disease primarily affecting preterm infants. The underlying mechanisms are poorly understood: mother's own breast milk (MOM) is protective, possibly relating to human milk oligosaccharide (HMO) and infant gut microbiome interplay. We investigated the interaction between HMO profiles and infant gut microbiome development and its association with NEC.DesignWe performed HMO profiling of MOM in a large cohort of infants with NEC (n=33) with matched controls (n=37). In a subset of 48 infants (14 with NEC), we also performed longitudinal metagenomic sequencing of infant stool (n=644).ResultsConcentration of a single HMO, disialyllacto-N-tetraose (DSLNT), was significantly lower in MOM received by infants with NEC compared with controls. A MOM threshold level of 241 nmol/mL had a sensitivity and specificity of 0.9 for NEC. Metagenomic sequencing before NEC onset showed significantly lower relative abundance of Bifidobacterium longum and higher relative abundance of Enterobacter cloacae in infants with NEC. Longitudinal development of the microbiome was also impacted by low MOM DSLNT associated with reduced transition into preterm gut community types dominated by Bifidobacterium spp and typically observed in older infants. Random forest analysis combining HMO and metagenome data before disease accurately classified 87.5% of infants as healthy or having NEC.ConclusionThese results demonstrate the importance of HMOs and gut microbiome in preterm infant health and disease. The findings offer potential targets for biomarker development, disease risk stratification and novel avenues for supplements that may prevent life-threatening disease.

| S-EPMC9231288 | biostudies-literature

Human milk microbiota, oligosaccharide profiles, and infant gut microbiome in preterm infants diagnosed with necrotizing enterocolitis.

Project description:Necrotizing enterocolitis (NEC) is a severe intestinal disease of very preterm infants with mother's own milk (MOM) providing protection, but the contribution of the MOM microbiota to NEC risk has not been explored. Here, we analyze MOM of 110 preterm infants (48 NEC, 62 control) in a cross-sectional study. Breast milk contains viable bacteria, but there is no significant difference in MOM microbiota between NEC and controls. Integrative analysis between MOM microbiota, human milk oligosaccharides (HMOs), and the infant gut microbiota shows positive correlations only between Acinetobacter in the infant gut and Acinetobacter and Staphylococcus in MOM. This study suggests that NEC protection from MOM is not modulated through the MOM microbiota. Thus, "'restoring" the MOM microbiota in donor human milk is unlikely to reduce NEC, and emphasis should instead focus on increasing fresh maternal human milk intake and researching different therapies for NEC prevention.

| S-EPMC11524953 | biostudies-literature

Data in support of plasma proteomics study forearly markers of antibiotics dependent necrotising enterocolitis in preterm pigs

Project description:Most hospitalized preterm infants receive antibiotics (AB) in the first days of life to treat or prevent systemic infections. Short-term, early AB treatment may also prevent against the microbiota-dependent serious gut disorder, necrotising enterocolitis (NEC). However, it remains a challenge to predict or early detection of NEC in the first weeks of life and few diagnostic markers exist. Using preterm piglets as models for infants, we hypothesised that proteomic profiling could be used to identify new early plasma biomarkers of NEC with or without prior AB treatment. Preterm newborn pigs were treated with saline (CON) or antibiotics (ampicillin, gentamicin, and metronidazole), given enterally (ENT) or parenterally (PAR), and fed formula for four days to induce NEC. The gut was collected for scoring of NEC lesions and blood was collected for haematology and plasma proteomics

2021-09-08 | PXD015938 | Pride

Bowel expression profiles of infants with gastrointestinal conditions

Project description:We have employed whole genome microarray expression profiling to identify genes differentially expressed in neonatal bowel tissues of different gastrointestinal conditions. Bowel tissues were collected from infants who underwent surgery treatment for necrotising enterocolitis (NEC) and spontaneous intestinal perforation (SIP). Infants with other non-inflammatory, congenital intestinal conditions were employed as the Surgical-Control. Differential whole genome microarray analysis was performed.

2014-01-21 | E-GEOD-46619 | biostudies-arrayexpress

Metagenomic analysis of necrotising enterocolitis (NEC)

Project description:This dataset contains the output from shotgun metagenomic and genomic sequencing of the microbiota of faecal samples collected from infants prior to developing necrotising enterocolitis (NEC).

| PRJEB19677 | ENA

Low Diversity of Human Milk Oligosaccharides is Associated with Necrotising Enterocolitis in Extremely Low Birth Weight Infants.

Project description:Difference in human milk oligosaccharides (HMO) composition in breast milk may be one explanation why some preterm infants develop necrotizing enterocolitis (NEC) despite being fed exclusively with breast milk. The aim of this study was to measure the concentration of 15 dominant HMOs in breast milk during the neonatal period and investigate how their levels correlated to NEC, sepsis, and growth in extremely low birth weight (ELBW; <1000 g) infants who were exclusively fed with breast milk. Milk was collected from 91 mothers to 106 infants at 14 and 28 days and at postmenstrual week 36. The HMOs were analysed with high-performance anion-exchange chromatography with pulsed amperometric detection. The HMOs diversity and the levels of Lacto-N-difucohexaose I were lower in samples from mothers to NEC cases, as compared to non-NEC cases at all sampling time points. Lacto-N-difucohexaose I is only produced by secretor and Lewis positive mothers. There were also significant but inconsistent associations between 3'-sialyllactose and 6'-sialyllactose and culture-proven sepsis and significant, but weak correlations between several HMOs and growth rate. Our results suggest that the variation in HMO composition in breast milk may be an important factor explaining why exclusively breast milk fed ELBW infants develop NEC.

| S-EPMC6213888 | biostudies-literature

The human milk oligosaccharide 2'-fucosyllactose attenuates the severity of experimental necrotising enterocolitis by enhancing mesenteric perfusion in the neonatal intestine.

Project description:Necrotising enterocolitis (NEC) is a common disease in premature infants characterised by intestinal ischaemia and necrosis. The only effective preventative strategy against NEC is the administration of breast milk, although the protective mechanisms remain unknown. We hypothesise that an abundant human milk oligosaccharide (HMO) in breast milk, 2'-fucosyllactose (2'FL), protects against NEC by enhancing intestinal mucosal blood flow, and we sought to determine the mechanisms underlying this protection. Administration of HMO-2'FL protected against NEC in neonatal wild-type mice, resulted in a decrease in pro-inflammatory markers and preserved the small intestinal mucosal architecture. These protective effects occurred via restoration of intestinal perfusion through up-regulation of the vasodilatory molecule endothelial nitric oxide synthase (eNOS), as administration of HMO-2'FL to eNOS-deficient mice or to mice that received eNOS inhibitors did not protect against NEC, and by 16S analysis HMO-2'FL affected the microbiota of the neonatal mouse gut, although these changes do not seem to be the primary mechanism of protection. Induction of eNOS by HMO-2'FL was also observed in cultured endothelial cells, providing a link between eNOS and HMO in the endothelium. These data demonstrate that HMO-2'FL protects against NEC in part through maintaining mesenteric perfusion via increased eNOS expression, and suggest that the 2'FL found in human milk may be mediating some of the protective benefits of breast milk in the clinical setting against NEC.

| S-EPMC5124125 | biostudies-literature

Arginine supplementation for prevention of necrotising enterocolitis in preterm infants.

Project description: Not available

| S-EPMC6478109 | biostudies-literature

Role of the microbiome in pathophysiology of necrotising enterocolitis in preterm neonates.

Project description:Although necrotising enterocolitis (NEC) is a serious, life-threatening disease, improved neonatal care is increasing the number of survivors with NEC among extremely preterm neonates. Therapy is nevertheless mostly symptomatic and the mortality rate remains high, especially among neonates requiring surgery. Therefore, it is important to focus on preventing the disease and modifiable risk factors. NEC's pathophysiology is multifaceted, with key factors being immaturity of the immune and barrier protective mechanisms of the premature gut and exaggerated proinflammatory reaction to insults like gut hypoxia, enteral nutrition or microbial dysbiosis. The role of the intestinal microbiome in the pathophysiology of NEC has been a subject of research for many years, but to date no specific pathogen or type of dysbiosis has been connected with NEC development. This review assesses current knowledge as to the role of the intestinal microbiota in the pathophysiology of NEC and the possibilities for positively influencing it.

| S-EPMC10626796 | biostudies-literature

Routine monitoring of gastric residual for prevention of necrotising enterocolitis in preterm infants.

Project description: Not available

| S-EPMC6699661 | biostudies-literature