AI Article Synopsis
- The study examines how the developmental competence of oocytes is influenced by the follicular cells during antral folliculogenesis, focusing on the role of follicle-stimulating hormone (FSH) in enhancing oocyte quality.
- It compares the gene expression profiles of cumulus cells from cows treated with FSH to those from untreated control cows, highlighting that FSH-treated cells show down-regulation of genes linked to cell movement, potentially stabilizing cell connections.
- The research suggests that maintaining healthy communication between cumulus cells and oocytes is crucial for improving oocyte competency and subsequent embryo development.
Article Abstract
During antral folliculogenesis, developmental competence of prospective oocytes is regulated in large part by the follicular somatic component to prepare the oocyte for the final stage of maturation and subsequent embryo development. The underlying molecular mechanisms are poorly understood. Oocytes reaching the advanced stage of follicular growth by administration of exogenous follicle-stimulating hormone (FSH) possess higher developmental competence than oocytes in FSH-untreated smaller follicles. In this study, the transcriptomic profile of the cumulus cells from cows receiving FSH administration (FSH-priming) was compared, as a model of high oocyte competence, with that from untreated donor cows (control). Ingenuity Pathway Analysis showed that cumulus cells receiving FSH-priming were rich in down-regulated transcripts associated with cell movement and migration, including the extracellular matrix-related transcripts, probably preventing the disruption of cell-to-cell contacts. Interestingly, the transcriptomic profile of up-regulated genes in the control group was similar to that of granulosa cells from atretic follicles. Interferon regulatory factor 7 was activated as the key upstream regulator of FSH-priming. Thus, acquisition of developmental competence by oocytes can be ensured by the integrity of cumulus cells involved in cell-to-cell communication and cell survival, which may help achieve enhanced oocyte-somatic cell coupling.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5533789 | PMC |
| http://dx.doi.org/10.1038/s41598-017-07039-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Assessment of azithromycin-induced toxicity in : Effects on morphology, behavior, and lipid metabolism.
Toxicol Rep
December 2024
Laboratory of Forensic Chemistry and Toxicology, School of Forensic Sciences, National Forensic Sciences University, Delhi, India.
Antibiotics are indispensable in modern healthcare, playing a critical role in mitigating bacterial infections. Azithromycin is used to fight upper respiratory tract infections, however has potential toxic effects that remain inadequately understood. In our present study, azithromycin exposure to led to significant physiological and behavioral change, with pronounced effects observed at the studied concentration.
View Article and Find Full Text PDFGenome-wide epigenetic profiling and transcriptome analysis in pediatric Obstructive Sleep Apnea: A focus on Black female children.
Heliyon
December 2024
Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Obstructive Sleep Apnea (OSA) is a common sleep-related breathing disorder characterized by airway obstruction during sleep. Diagnosing pediatric OSA is challenging, particularly in underrepresented populations, leading to disparities in treatment and long-term negative health outcomes. Our study aimed to identify alternative diagnostic tools by investigating genome-wide epigenetic changes and associated transcriptomic alterations in Black female, pediatric patients with OSA.
View Article and Find Full Text PDFEvaluating semantic control with transcranial magnetic stimulation: a systematic review with meta-analysis.
Front Psychol
December 2024
Department of Developmental and Social Psychology, University of Padova, Padova, Italy.
Background: This meta-analysis investigates the role of specific brain regions in semantic control processes using Transcranial Magnetic Stimulation (TMS). According to the Controlled Semantic Cognition framework, control processes help manage the contextually appropriate retrieval of semantic information by activating a distributed neural network, including the inferior frontal gyrus, the posterior middle temporal gyrus, and inferior parietal lobule. Lesions in these areas can lead to difficulties in manipulating weakly activated or competing semantic information.
View Article and Find Full Text PDFSynaptic modulation of glutamate in striatum of the YAC128 mouse model of Huntington disease.
Neurobiol Dis
December 2024
Department of Psychiatry, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada. Electronic address:
Background: Altered balance between striatal direct and indirect pathways contributes to early motor, cognitive and psychiatric symptoms in Huntington disease (HD). While degeneration of striatal D2-type dopamine receptor (D2)-expressing indirect pathway medium spiny neurons (iMSNs) occurs prior to that of D1-type dopamine receptor (D1)-expressing direct pathway neurons, altered corticostriatal synaptic function precedes degeneration. D2-mediated signaling on iMSNs reduces their excitability and promotes endocannabinoid (eCB) synthesis, suppressing glutamate release from cortical afferents.
View Article and Find Full Text PDFAssociation of gestational and childhood circulating C-peptide concentrations in the hyperglycemia and adverse pregnancy outcomes follow-up study.
Diabetes Res Clin Pract
December 2024
Department of Pediatrics, Division of Molecular Genetics, Columbia University Irving Medical Center, New York, NY, United States. Electronic address:
Aims: This study examined the association of gravida C-peptide with progeny islet function and insulin sensitivity in the Hyperglycemia and Adverse Pregnancy Outcome Follow-up Study (HAPO FUS).
Methods: Pregnancy 3rd trimester oral glucose tolerance test (OGTT), cord blood, and offspring OGTT glucose, C-peptide and insulin at age 10-14 years were analyzed for 4,121 mother-child dyads. Gravida fasting and 1-hour C-peptide concentration correlations with cord blood and childhood C-peptide, insulin, insulinogenic index and insulin sensitivity, and insulin resistance [HOMA-IR]), were assessed by multiple linear regression.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!