GEO DataSets

(Submitter supplied) Background: Early embryonic development is governed by maternal transcripts stored within the oocyte during oogenesis. Transcriptional activity of the oocyte ultimately dictates its developmental potential and may be influenced by maternal age, resulting in reduced competence of oocytes derived from women of advanced age, compared with the young. In the current study, RNA-Seq was used to perform transcriptome profiling of human GV and MII oocytes derived from young and advanced maternal age women. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21290

21 Samples

Download data: XLSX

(Submitter supplied) Study Question: What effects do maternal age and oocyte maturation stage have on the human oocyte transcriptome that may be associated with oocyte developmental potential? Summary Answer: Although polyadenylated transcript abundance changes during human oocyte maturation irrespective of age, young (YNG) and advanced maternal age (AMA) metaphase II (MII) oocytes exhibit divergent transcriptomes. What is known already: Maternal age and maturation stage affect oocyte polyadenylated transcript abundance in human oocytes. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

20 Samples

Download data: CSV

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Macaca mulatta

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL23949 GPL19129

29 Samples

Download data: TXT

(Submitter supplied) Oocyte maturation defects are one contributing factor in unexplained female infertility. Failure of some oocytes to undergo germinal vesicle breakdown or progress to second meiotic metaphase in response to an ovulatory stimulus can limit the number of high quality oocytes available for assisted reproduction. Understanding the molecular mechanisms that underlie oocyte maturation failure may lead to novel methods for increasing the number of high quality oocytes available for assisted reproduction, as well as providing new insight into the basic biology of oocyte maturation. more...

Organism:

Macaca mulatta

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19129 GPL23949

11 Samples

Download data: TXT

(Submitter supplied) Oocyte maturation defects are one contributing factor in unexplained female infertility. Failure of some oocytes to undergo germinal vesicle breakdown or progress to second meiotic metaphase in response to an ovulatory stimulus can limit the number of high quality oocytes available for assisted reproduction. Understanding the molecular mechanisms that underlie oocyte maturation failure may lead to novel methods for increasing the number of high quality oocytes available for assisted reproduction, as well as providing new insight into the basic biology of oocyte maturation. more...

Organism:

Macaca mulatta

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23949

18 Samples

Download data: TXT

(Submitter supplied) The oocytes presenting SERa are considered dysmorphic and have been associated with reduced embryological outcome and an increased risk of congenital anomalies. Therefore, in 2011 the Alpha/ESHRE Consensus strongly recommended not to inseminate MII oocytes displaying SERa (SERa+). Not all Centers follow this recommendation and some Authors reported that SERa+ can lead to healthy newborns. Moreover, no experimental data about the effect of SERa presence on the oocyte molecular status are available. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL13497

6 Samples

Download data: TXT

(Submitter supplied) We highlighted the effects of age and ovarian responses on rescue IVM oocyte quality.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

21 Samples

Download data: TXT, XLSX

(Submitter supplied) Although it is well established that the ovarian reserve diminishes with increasing age, and that a woman’s age is correlated to lower oocyte quality, the interplay of a diminished reserve and age on oocyte developmental competence is not clear. After maturation, oocytes are mostly transcriptionally quiescent, and developmental competence prior to embryonic genome activation (EGA) relies on maternal RNA and proteins. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17586

35 Samples

Download data: CEL

(Submitter supplied) Study question: Does storage time impact on transcriptome of slowly frozen cryopreserved human metaphase II (MII) oocytes? Summary answer: For the first time, we demonstrate that the length of cryostorage has no effect on the gene expression profile of human metaphase II oocytes. What is known already: Oocyte cryopreservation is a largely-used technique in IVF for storage of surplus oocytes, as well as for fertility preservation (i.e., women undergoing gonadotoxic therapies) and oocyte donation programs. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL13497

10 Samples

Download data: TXT

(Submitter supplied) Gene expression analysis in cc from COCs with different chromatin configuration (GV0-3)

Organism:

Bos taurus

Type:

Expression profiling by array

Platform:

GPL13226

12 Samples

Download data: TXT

(Submitter supplied) While the oocytes’ transcriptome is predominantly determined by maturation stage, transcripts related to specific pathways such as chromosome segregation, mitochondria and RNA processing are affected by age after in vitro maturation of denuded oocytes.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20301

75 Samples

Download data: TSV, XLSX

(Submitter supplied) Cumulus cells are biologically distinct from other follicular cells and perform specialized roles, transmitting signals within the ovary and supporting oocyte maturation during follicular development. The bi-directional communication between the oocyte and the surrounding cumulus cells is crucial for the acquisition of oocyte competence. Using Illumina/deep-sequencing technology, we dissected the small RNAome of pooled human mature MII oocytes and cumulus cells.

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL9115

2 Samples

Download data: TXT

(Submitter supplied) Objective: To study post-hatching development after transfer of morphologically good quality embryos that survived in vitro maturation under lipolytic conditions using a well-established and recognized bovine model. Design: prospective study with a crossover design. Setting: research laboratory. Animals: 8 healthy multiparous non-lactating Holstein cows used in repeated embryo transfers. Intervention(s): Bovine cumulus oocyte complexes (COCs) were in vitro matured in the presence of either 1) a combination of elevated pathophysiological concentration of palmitic acid (PA) and physiological concentrations of stearic acid (SA) and oleic acid (OA) (HIGH PA), or 2) physiological concentrations of PA, SA and OA (BASAL). more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22316

53 Samples

Download data: TXT

(Submitter supplied) Pig oocytes were stained with Brilliant cresyl blue to identify mtDNA deficient oocytes.

Organism:

Sus scrofa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24486

40 Samples

Download data: TXT

(Submitter supplied) The process of ovulation includes oocyte meiotic maturation, follicle rupture and transformation of the follicle into a corpus luteum. These events are initiated by the midcycle surge of gonadotropins and require the coordinated regulation of thousands of genes. The aim of the study was to monitor the changes in granulosa cell gene expression across five different time points during the first 36 hours of ovulation until follicle rupture, in order to increase our understanding of the events of human ovulation. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL23126

83 Samples

Download data: CEL, CHP

(Submitter supplied) RNA sequencing profiling of cumulus cells revealed that the follicles of older women have a compromised environment with hypoxic stress being the main contributor to age-related oocyte quality decay.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

20 Samples

Download data: CSV

(Submitter supplied) Human meiosis in oocytes entails a fine regulation of the transcriptome to support late oocyte growth and early embryo development, both key to reproductive success. Currently, little is known about the co- and post-transcriptional mRNA processing mechanisms regulating the last meiotic passages, which contribute to transcriptome complexity and influence translation rates. We analyzed gene expression changes, splicing and pre-mRNA processing in an RNA sequencing set of 40 oocytes at different meiotic maturation stages, both in vivo ovulated and matured in vitro. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

40 Samples

Download data

(Submitter supplied) Development of single cell sequencing allows detailing the transcriptome of individual oocytes. Here, we compare different RNA-seq datasets from single and pooled mouse oocytes and show higher reproducibility using single oocyte RNA-seq. We further demonstrate that UMI (unique molecular identifiers) based and other deduplication methods are limited in their ability to improve the precision of these datasets. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

12 Samples

Download data: TXT

(Submitter supplied) Growing mammalian oocytes accumulate substantial amounts of RNA, most of which are degraded during the subsequent maturation stage. The growth-to-maturation transition begins with germinal vesicle breakdown (GVBD, envisioned as nuclear envelope breakdown) and is critical for oocyte quality. However, the concomitant changes in the transcriptome during GVBD as well as the underlying machinery remained unclear. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

108 Samples

Download data: TXT

(Submitter supplied) The statement that fully-grown porcine oocytes are transcriptionally quiescent is not as strong as before. Currently, we know that there is a difference in the transcription profile of germinal vesicle (GV) and metaphase II (MII) oocytes. The goal of our study was to compare the transcription profile of GV, germinal vesicle breakdown (GVBD), metaphase I (MI), and metaphase (MII) oocytes cultivated in a chemically defined, FLI medium. more...

Organism:

Sus scrofa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL26351

12 Samples

Download data: XLSX