GEO DataSets

Analysis of first trimester placenta tissues obtained by chorionic villus sampling from women destined to develop preeclampsia. Preeclampsia is a cause of maternal, fetal, and neonatal morbidity and mortality. Results provide insight into the molecular pathogenesis of preeclampsia.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 disease state sets

Platform:

GPL570

Series:

GSE12767

12 Samples

Download data: CEL

(Submitter supplied) 4 chorionic villus sampling specimens in pregnancies destined for preeclampsia and 8 matched controls were analyzed 36 genes were differentially expressed using J5 score and prediction modeling in caGEDA computer program Keywords: snap frozen, banked CVS specimens with known pregnancy outcomes revealed genes differentially expressed in preeclampsia pregnancies

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS3467

Platform:

GPL570

12 Samples

Download data: CEL

(Submitter supplied) The series is composed of thirty hybridizations for analysis of differentially expressed genes in normal placenta tissues from patients with normal labor and placenta tissues from patients with severe preeclampsia. Patients tissues samples were obtained from (Vasilis. Total RNA extraction was performed by using the MagNa Pure Compact RNA Isolation Kit (Roche Applied Science). Keywords: Gene expression study, Disease state

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL2986

43 Samples

Download data: TXT

(Submitter supplied) The maternal signs of preeclampsia, principally the new onset of high blood pressure, are thought to occur secondary to faulty placentation. Previous studies profiled the gene expression patterns of chorionic villi, the maternal-fetal interface or isolated cytotrophoblasts in this pregnancy complication. We theorized that transcriptomic analyses of trophoblast subpopulations in situ would give us new insights into the role of these cells in preeclampsia pathogenesis.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16686

23 Samples

Download data: CEL, TXT

(Submitter supplied) Preeclampsia (PE), a hypertensive disorder of pregnancy, is hypothesized to be associated with, if not mechanistically related to abnormal placental function. However, the exact mechanisms regulating the pathogenesis of PE remain unclear. While many studies have investigated changes in gene expression in the PE placenta, the role of epigenetics in PE associated placental dysfunction remains unclear. more...

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

45 Samples

Download data: TXT

(Submitter supplied) Fetal growth restriction (FGR) is a heterogeneous disorder of pregnancy associated with pathologically low fetal and neonatal weights. We hypothesized that FGR consists of multiple placental subtypes, similar to what we have observed in preeclampsia. To address this hypothesis, we assembled a fetal growth-focused human placental microarray data set (N=97) consisting of 20 new normotensive suspected FGR samples (below), in addition to term controls (N=26) and hypertensive suspected FGR samples (N=51) from GSE75010.

Organism:

Homo sapiens

Type:

Expression profiling by array; Third-party reanalysis

Platform:

GPL6244

20 Samples

Download data: CEL, TXT

(Submitter supplied) Preeclampsia (PE) is a complex, heterogeneous disorder of pregnancy, demonstrating considerable variability in observed maternal symptoms and fetal outcomes. We hypothesized that this heterogeneity is due to the existence of multiple molecular forms of PE. To address our hypothesis, we created a large (N=330) human placental microarray data set consisting of seven previously published studies (GSE30186, GSE10588, GSE24129, GSE25906, GSE43942, GSE4707, and GSE44711) and 157 highly annotated samples from a BioBank (below). more...

Organism:

Homo sapiens

Type:

Expression profiling by array; Third-party reanalysis

Platform:

GPL6244

157 Samples

Download data: CEL, CSV

(Submitter supplied) Introduction: To determine the miRNA expression profile in placentas complicated by Preeclampsia (PE) and compare it to uncomplicated pregnancies. Methods: Sixteen placentas from women with PE, including 11 with early onset PE (EOPE) and 5 with late onset PE (LOPE), as well as 8 from uncomplicated pregnancies were analyzed using miRNA microarrays. For statistical analyses the MATLAB® simulation environment was applied. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL23980

24 Samples

Download data: TXT

(Submitter supplied) We used microarrays to detail the global gene expression in human placental tissues in first trimester from patients subject to in vitro fertilization and embryo transfer and normal pregnancy

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

8 Samples

Download data: CEL

(Submitter supplied) Placentation requires the proper regulation of extravillous trophoblast (EVT) migration and invasion into the decidua and maternal vasculature, processes which are initiated in physiologic hypoxic conditions. Abnormal EVT migration and/or invasion have been suggested to lead to pregnancy complications, such as preeclampsia. The objectives of this study are to determine how exposure to hypoxia impacts gene expression and cellular motility of first trimester trophoblasts, and to assess if expression of migration-associated genes is dysregulated in 2nd trimester chorionic villous samples (CVS) from preeclampsia pregnancies relative to CVS from healthy pregnancies. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

12 Samples

Download data: CSV

(Submitter supplied) Pre-eclampsia is one of the most serious pregnancy-associated disorders, and is defined by hypertension (systolic blood pressure higher than 140mmHg or diastolic blood pressure higher than 90mmHg) with proteinuria (more than 0.3g/day). It is not a simple complication of pregnancy, but is rather a syndrome of multiple organ failure involving the liver, kidney, and lung, as well as coagulatory and neural systems. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS2080

Platform:

GPL1708

14 Samples

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Analysis of placentas from patients with early or late onset severe preeclampsia. Preeclampsia is a serious pregnancy-associated disorder characterized by hypertension and proteinuria. Results provide insight into the pathogenesis of preeclampsia.

Organism:

Homo sapiens

Type:

Expression profiling by array, log10 ratio, 3 disease state sets

Platform:

GPL1708

Series:

GSE4707

14 Samples

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(Submitter supplied) The purpose of this study was to perform a comprehensive analysis of gene expression profile in placentas from preeclamptic pregnancies vs normal placentas.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

12 Samples

Download data: TXT

(Submitter supplied) Preeclampsia (PE) is a pregnancy related multisystemic syndrome, which shows symptomes after the 20th week of the pregnancy. It affects 5-8% of all pregnancies, caused by placental disfunction and commonly combined with fetal intrauterine growth restriction (IUGR). Exosomes mediate cell-to-cell communication with their cargo, such as different types of RNA molecules. The exosomal RNA cargo is unique, gives information about the molecular condition of the donor cells and promotes altered gene expression in the acceptor cells. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL30173

10 Samples

Download data: CSV

(Submitter supplied) Genome wide DNA methylation profiling of normal and preeclampsia placental samples. Illumina Infinium HumanMethylation450 BeadChip (450K array) was used to obtain DNA methylation profiles in placental samples. Samples included 16 samples from healthy uncomplicated pregnancies and 8 samples from pregnancies affected by preeclampsia.

Organism:

Homo sapiens

Type:

Methylation profiling by array

Platform:

GPL13534

24 Samples

Download data: IDAT

(Submitter supplied) Reduced or absent cytotrophoblast invasion of the maternal uterine spiral arteries is a common clinical finding in studies of pregnancies complicated by preeclampsia, suggesting that the mechanisms behind invasion of these cells is perturbed. The placenta initially develops in a low oxygen environment of 1-2% oxygen until after the 10th week of pregnancy. During this time oxygen concentration exerts a major influence over trophoblast activity and, in vitro, hypoxia inducible factors are proposed to be one of many key regulators of first trimester trophoblast behaviour. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

18 Samples

Download data: IDAT

(Submitter supplied) BPH/5 mice are an inbred strain with “borderline hypertension” that spontaneously develops both maternal and fetal hallmarks of preeclampsia. RNA-Seq analysis of BPH/5 uterine implantation sites at embryonic day 7.5, the peak of decidualization, identifies differential expression of inflammatory response genes, including members of the complement family, compared to C57 controls.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

8 Samples

Download data: DIFF, TXT

(Submitter supplied) The human placenta is a rapidly developing organ with a relatively short life span that performs multiple functions until birth. Investigations into molecular mechanisms that control placental plasticity during its maturation might be useful in understanding patho-physiology of pregnancy-specific disorders. We hypothesized that molecular rearrangements and phenotypic adaptations that are necessary for normal placental development and maturation are reflected in its genotype. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL2986

37 Samples

Download data: TXT

(Submitter supplied) Total RNA was isolated from all the placental tissues using Trizol, and mRNA was isolated using FastTrack Kit. We used a placenta reference as a standard for all these array hybridizations. The placenta reference is a mixture of placenta mRNA with CRG. Set of arrays organized by shared biological context, such as organism, tumors types, processes, etc. Keywords: Logical Set

Organism:

Homo sapiens

Type:

Expression profiling by array

6 related Platforms

72 Samples

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