Startups
impact 16
A Startup Says It Grew Human Sperm in a Lab—and Used It to Make Embryos
A Startup Says It Grew Human Sperm in a Lab—and Used It to Make Embryos Paterna Biosciences says it has determined the set of instructions needed to turn sperm-making stem cells into "normal, mature" sperm.
Why it matters
This signals a broader shift in says. The real question is whether sperm moves the needle for practitioners.