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Gene expression profiling for placentas from pre-eclamptic, unexplained FGR and normal pregnancies.

ABSTRACT: It has been well documented that pre-eclampsia and unexplained fetal growth restriction (FGR) has a common etiological background, but little is known about the linkage al the molecular level. we have performed global gene expression profiling by oligonucleotide microarrays for placentas from pre-eclamptic, unexplained FGR and normal pregnancies to further elucidate the mechanisms underlying the development of these two disorders.

ORGANISM(S): Homo sapiens

PROVIDER: GSE24129 | GEO | 2010/09/15

SECONDARY ACCESSION(S): PRJNA130123

REPOSITORIES: GEO

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Gene expression profiling for placentas from pre-eclamptic, unexplained FGR and normal pregnancies.

Project description:It has been well documented that pre-eclampsia and unexplained fetal growth restriction (FGR) has a common etiological background, but little is known about the linkage al the molecular level. we have performed global gene expression profiling by oligonucleotide microarrays for placentas from pre-eclamptic, unexplained FGR and normal pregnancies to further elucidate the mechanisms underlying the development of these two disorders. The total number of samples used was 8 from pre-eclampsia, 8 from normotensive pregnancies with FGR and 8 from those without FGR.

2010-09-15 | E-GEOD-24129 | biostudies-arrayexpress

Homo sapiens

Project description:Gene expression profiling for placentas from pre-eclamptic, unexplained FGR and normal pregnancies.

| PRJNA130123 | ENA

Gene expression profiling for placentas from pre-eclamptic and normal pregnancies

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Transcriptional profiles of placentas from systemic lupus erythematosus and normal full-term pregnancies.

Project description:We report transcriptional profiles of placentas from systemic lupus erythematosus pregnancies and normal full-term pregnancies. We recruited 8 pregnant patients with SLE, and 8 age-matched healthy pregnant women as normal controls. RNA-seq strand-specific libraries were constructed using the VAHTS Total RNA-seq (H/M/R)Library Prep Kit. Differentially expressed genes were identified using Cuffdiff. The P-value significance threshold in multiple tests was set by the false discovery rate (FDR). The fold-changes were also estimated according to the FPKM in each sample.The differentially expressed genes were selected using the following filter criteria: FDR <0.05 and fold-change >2.

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Project description:IUGR (Intra-Uterine Growth Restriction) refers to a condition where the foetus does not reach its growth potential in utero. It is supposed to be often linked with placental dysfunction, especially of vascular origin. In this study, 4 pools of three placentas from human normal pregnancies and 4 pools of three placentas from IUGR human pregnancies, obtained after caesarean section near normal term , were used to prepare RNA. The cDNAs prepared from these RNA were hybridized to a Nimblegen expression array in order to detect differences in gene expression between normal and pathological placentas.

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Dysregulated Placental Micrornas In Early And Late Onset Preeclampsia

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Transcription profiling of decidua basalis from women with normal pregnancies or preeclampsia and/or fetal growth restriction

Project description:The aim of the study was to compare gene expression profiles in decidua basalis from cases with complicated pregnancies to those from healthy pregnant controls. Cases included pregnant women with preeclampsia (PE) and/or fetal growth restriction (FGR). Decidual tissue was obtained by vacuum suction of the placental bed after the placenta was delivered. Women with PE and/or FGR were included as cases. PE was defined as persistent hypertension (blood pressure (BP) ¡Ý 140/90 mm Hg), plus proteinuria (¡Ý0.3g/24 h or ¡Ý2+ according to a dipstick test), developing after 20 weeks of pregnancy. FGR implied birth weight under 2 standard deviations (SD) below the expected birth weight, as related to gestational age (GA) and sex. Due to tissue sampling procedures, only cases delivered by cesarean section (CS) were included. Healthy women with normal pregnancies, undergoing CS for various reasons considered irrelevant to the aim of this study (e. g. breech presentation and previous CS), served as controls. Tissue was immediately submerged in a RNA stabilisation solution (RNAlater, Ambion, Huntingdon, U.K.), incubated at 4¡ãC overnight and stored at -80¡ãC

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