A Startup Says It Grew Human Sperm in a Lab—and Used It to Make Embryos
The goal, he says, is to create thousands of sperm from a standard tissue biopsy. The company has had a high success rate in generating sperm from dozens of tissue samples. Pastuszak says early testing shows the lab-made sperm look “effectively identical” to naturally made sperm. The procedure is not yet ready to be used…
