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Homo sapiens

ABSTRACT: Gut microbiota of pregnant women with gestational diabetes.

PROVIDER: PRJNA884382 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21743400.fastq.gz	Fastqsanger.gz
	SRR21743401.fastq.gz	Fastqsanger.gz
	SRR21743402.fastq.gz	Fastqsanger.gz
	SRR21743403.fastq.gz	Fastqsanger.gz
	SRR21743404.fastq.gz	Fastqsanger.gz

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Project description:Gut Microbiota in Pregnant Malaysian Women

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Plasma exosomal microRNAs associated with metabolism as early predictor of gestational diabetes mellitus

Project description:The microRNA (miRNA) expression profile of plasma exosome in pregnant women complicated with gestational diabetes mellitus (GDM) has not been fully clarified. In this study, differentially expressed miRNAs in plasma exosomes were identified by high-throughput small RNA sequencing in 12 GDM and 12 normal glucose tolerance (NGT) pregnant women and validated in 102 GDM and 101 NGT pregnant women. A total of 22 exosomal miRNAs were found and five of them were verified by qRT-PCR. Exosomal miR-423-5p was upregulated, while miR-99a-5p, miR-192-5p, miR-148a-3p, and miR-122-5p were downregulated in pregnant women complicated with GDM.

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Reduced representation bisulfite sequencing (RRBS) methylation profiles of placenta and umbilical cord blood with or without gestational diabetes mellitus (GDM)

Project description:Objective: To explore the characteristics and underlying molecular mechanisms of genome-scale expression profiles of women with- or without- gestational diabetes mellitus and their offspring. Materials and Methods: We recruited a group of 21 pregnant women with gestational diabetes mellitus (GDM) and 20 healthy pregnant women as controls. For each pregnant women, RRBS were performed using the placenta and paired neonatal umbilical cord blood specimens. Differentially methylated regions (DMRs) were identified. Then, functional enrichment analysis was performed to differential methylated genes (DMGs) separately or interactively in placenta and umbilical cord blood. Results: Through the comparison of GDM and healthy samples, 2779 and 141 DMRs were identified from placenta and umbilical cord blood, respectively. Functional enrichment analysis showed that the placenta methylation and expression profiles of GDM women mirrored the molecular characteristics of “type II diabetes” and “insulin resistance”. Methylation-altered genes in umbilical cord blood were associated with pathways “type II diabetes” and “cholesterol metabolism”. DMGs illustrated significant overlaps among placenta and umbilical cord blood samples, and the overlapping DMGs were associated with cholesterol metabolism. Conclusions: Our research demonstrated the epigenomic alternations of GDM mothers and offspring. Our findings emphasized the importance of epigenetic modifications in the communication between pregnant women with GDM and offspring, and provided reference for the prevention, control, treatment, and intervention of perinatal deleterious events of GDM and neonatal complications.

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Project description:To characterize the human plasma microtranscriptome profile at first trimester of pregnancy in presence or not of pregnancy complications, we sequenced microRNAs in plasma samples collected from pregnant women between the 6th and the 15th weeks of pregnancy as a replication cohort. We then performed differential expression analyses to assess the miRNA profile diffrences according to the presence of pregnancy complications or not (i.e. Gestational diabetes mellitus, Gestational hypertension or preeclampsia vs. normal pregnancies).

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Characterization of human plasma pregnancy-associated miRNAs at first trimester and their association with pregnancy complications [cohort 1]

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