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Temporal changes in mRNA abundance in the corpus luteum during early pregnancy

ABSTRACT: Temporal changes in mRNA abundance in the corpus luteum during early pregnancy

PROVIDER: PRJNA615855 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11433849.fastq.gz	Fastqsanger.gz
	SRR11433850.fastq.gz	Fastqsanger.gz
	SRR11433851.fastq.gz	Fastqsanger.gz
	SRR11433852.fastq.gz	Fastqsanger.gz
	SRR11433853.fastq.gz	Fastqsanger.gz

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Temporal changes in miRNA abundance in the corpus luteum during early pregnancy

Project description:Temporal changes in miRNA abundance in the corpus luteum during early pregnancy

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Temporal changes in mRNA abundance in the corpus luteum during early pregnancy

Project description:Although rescue of the corpus luteum is required for pregnancy, luteal function during maternal recognition of pregnancy remains largely unexplored. CL were collected from pregnant cattle on days 14, 17, 20, and 23, to encompass the maternal recognition of pregnancy period. Next Generation Sequencing was used to profile mRNA abundance during this time, while tandem mass spectrometry and Nanostring technology were used to profile proteins and miRNA, respectively. A total of 1157 mRNA were differentially abundant. mRNA that increased were regulators of interferon signaling and DNA repair, while those that decreased were associated with luteolytic processes, such as calcium signaling and matrix metallopeptidase (MMP) signaling, indicating inhibition of these processes. mRNA that were maximally abundant on day 20 were primarily associated with immune processes. Overall, these data indicate that there are changes in the CL of pregnancy that are important for continued luteal function.

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Temporal changes in miRNA abundance in the corpus luteum during early pregnancy

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Temporal changes in the corpus luteum during early pregnancy

Project description:Temporal changes in the corpus luteum during early pregnancy

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Exploring the Plasma Proteome Linked to Corpus Luteum Presence and Conception Mode Across Pregnancy Stages and Postpartum

Project description:Observational data suggest that women conceiving without a corpus luteum are at higher risk of developing preeclampsia. While the underlying mechanisms remain unclear, the absence of corpus luteum-derived secretory products may be a contributing factor. This study investigates whether the plasma proteome differs between women who conceive with or without a corpus luteum and examines the relationship with mode of conception. Plasma samples from 12 participants were collected at three time points: first trimester, third trimester, and postpartum. The cohort included women who conceived unassisted (UC) after infertility, via artificial cycle frozen embryo transfer (AC FET), or natural cycle frozen embryo transfer (NC FET). 36 plasma protein samples were analyzed using mass spectrometry-based proteomics to compare the proteome of women who conceived with and without a corpus luteum, across different conception methods and pregnancy stages. In total, 528 proteins were quantified. No differentially expressed plasma proteins were identified between women with and without a corpus luteum. However, 15 proteins showed differential expression between UC and FET at all time points, with Bonferroni-corrected p<9.47 × 10E-5 and FC≥|2|. Several altered proteins, including PAPPA and ANG, were linked to preeclampsia. SERPINA7 was differentially detected when comparing time points within the unassisted conception method. No significant differences were detected between AC FET and NC FET. This pilot study revealed a unique proteomic signature associated with mode of conception. The findings suggest biologically plausible candidate proteins for further testing. Validation in larger cohorts or with alternative proteome analysis technologies is needed

2025-09-30 | PXD067974 | Pride

miRNAs in the porcine corpus luteum

Project description:Recently, microRNAs (miRNAs) have emerged as new players in the fine tuning of some reproductive functions in mammals via posttranscriptional gene regulation mechanisms. Importantly, miRNAs have been suggested to be an important regulators of various ovarian functions. Applying custom made multispecies arrays we aimed to analyze expression profile of miRNAs in corpus luteum to answer the question whether miRNAs can be involved in maintenance of luteal function during early pregnancy in pigs.

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Pregnancy-associated changes of peroxisome proliferator-activated receptor delta (PPARD) and cytochrome P450, family 21, subfamily A, polypeptide 2 (CYP21A2) expression in the bovine corpus luteum

Project description:To evaluate functional changes of the corpus luteum (CL) during early pregnancy in cows, gene expression profiles of the CL at the time of maternal recognition were investigated. Microarray analysis, using a 15 K bovine oligo DNA microarray, demonstrated 30 and 266 differentially expressed genes in the CL on days 15 (P15) and 18 (P18) of pregnancy compared with the CL on day 15 (NP15) of non-pregnancy (n=4 for each group, >2-fold change relative to NP15; P<0.05).

2019-09-22 | GSE128706 | GEO

Gene expression profiles in the bovine corpus luteum (CL) of the estrous cycle and pregnancy: Possible roles of chemokines in regulating CL function during pregnancy

Project description:To determine functional differences between the corpus luteum (CL) of the estrous cycle and pregnancy in cows, gene expression profiles between the CL of the estrous cycle and pregnancy were investigated. A 15 K bovine oligo DNA microarray detected 138, 265 and 455 differentially expressed genes (>2-fold; P<0.05) in the bovine CL of 20-25, 40-45, and 150-160 days of pregnancy compared with 10-12 days of the estrous cycle. The different gene expression profiles may contribute to functional differences between the CL of pregnancy and the CL of the estrous cycle in cows. Chemokines including eotaxin and lymphotactin may regulate CL function during pregnancy. Bovine ovaries containing corpora lutea (CLs) were obtained from Japanese-Black cows in the institute ranch within 10-30 min of exsanguination. Tissue samples were collected from cows on 10-12 days of the estrous cycle (cyclic), 20-25, 40-45, and 150-160 days of the gestation (n=4 animals/stage). The day of artificial insemination was designated as day 1.

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Effect of LPS on corpus luteum - TMT-based approach

Project description:Effect of LPS on corpus luteum - TMT-based approach

2024-03-28 | MSV000094426 | MassIVE