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  "path": "/story/startup-says-it-grew-human-sperm-in-a-lab-and-used-it-to-make-embryos/",
  "publishedAt": "2026-04-23T09:30:00.000Z",
  "site": "https://www.wired.com",
  "tags": [
    "Science",
    "Science / Biotech",
    "biotech",
    "stem cells",
    "fertility",
    "Reproduction",
    "Sperm Machine"
  ],
  "textContent": "Paterna Biosciences says it has determined the set of instructions needed to turn sperm-making stem cells into \"normal, mature\" sperm.",
  "title": "A Startup Says It Grew Human Sperm in a Lab—and Used It to Make Embryos"
}