ArticleReproductive sciences (Thousand Oaks, Calif.)2022
Cumulus Cell DNA Damage as an Index of Human Oocyte Competence.
Article in Reproductive sciences (Thousand Oaks, Calif.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Biomarkers Assessing the Role of Cumulus Cells on IVF Outcomes: A Systematic Review.Journal of assisted reproduction and genetics · 2024Pooled it
- Comparison of DNA damage in granulosa cells of women undergoing controlled ovarian stimulation in in vitro fertilization protocols with the recombinant human follicle-stimulating hormones CorneumonArchives of gynecology and obstetrics · 2024Trial
- Oocyte-cumulus cell interaction: a key factor in early embryo development.Biological reviews of the Cambridge Philosophical Society · 2026Review
- A multidimensional follicular profile integrating oxidative stress, apoptosis and PI3K/AKT/mTOR signaling in relation to oocyte developmental competence in in vitro fertilization cycles.Journal of assisted reproduction and genetics · 2026Article
- Cumulus cell DNA fragmentation in relation to oocyte yield and blastocyst quality.Reproduction & fertility · 2026Article
- Protein levels of p-mTOR and p-RPS6 in cumulus cells serve as non-invasive biomarkers for embryo quality and pregnancy outcome in IVF.Journal of assisted reproduction and genetics · 2026Article
- In Vitro Toxicity of a DEHP and Cadmium Mixture on Sheep Cumulus-Oocyte Complexes.International journal of molecular sciences · 2024Article
- New Approach to the Cryopreservation of GV Oocytes and Cumulus Cells through the Lens of Preserving the Intercellular Gap Junctions Based on the Bovine Model.International journal of molecular sciences · 2024Article
- Cumulus cell DNA damage linked to fertilization success in females with an ovulatory dysfunction phenotype.Frontiers in cell and developmental biology · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The determination of oocyte quality is crucial for achieving effective syngamy post-sperm injection and embryonic development. Cumulus cells (CCs) have been proposed as biomarkers of oocyte quality because of their close bio-dynamic relationship with the oocyte. To determine the quality of the oocyte, CCs were sampled during oocyte preparation for ICSI to determine a CC DNA fragmentation index (CCDFI) of each individual oocyte using a variant of the chromatin dispersion test. One hundred and thirty oocytes were selected and studied from two Spanish fertility clinics, 90 of which were fertilized and developed to embryos. Significant differences were found between the CCDFI of unfertilized and fertilized oocytes (p < .001) and between the CCDFI of embryos that were discarded and those that developed suitable for transfer or cryopreservation (p < .001). Oocyte quality was negatively correlated with CCDFI (Spearman's rho = - 0.45; p < .001). Receiver operator characteristics curves (ROC) suggested that a cut-off value of 24% CCDFI was able to discriminate the capacity of the gametes to result in syngamy with a sensitivity and specificity of 75.6% and 65%, respectively. This cut-off supports the application of CCDFI as potential index for the evaluation of the reproductive potential of oocytes prior to fertilization.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.