{
  "id": 17935366,
  "title": "Cumulus cells mediate the protective effect of the marine carotenoid fucoxanthin against postovulatory oocyte aging via NRF2 signaling",
  "url": "https://urgent.news/2026/11/02/cumulus-cells-mediate-the-protective-effect-of-the-marine-carotenoid",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-02T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.11.01.763385v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Background Oocytes awaiting insemination undergo postovulatory aging, an oxidative stress-driven loss of developmental competence. Fucoxanthin (FX), the major carotenoid of the brown alga Undaria pinnatifida, acts through NRF2, which requires a nucleus and transcription; the metaphase-II oocyte has neither, so its site of action is unresolved. Purpose To determine whether FX delays postovulatory…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}