实验室培育精子能否帮助不育男性生育后代？

Will lab-grown sperm let infertile men have children? A start-up claims it can grow sperm in the lab. But Michael Le Page thinks this will have to be combined with gene editing to be most helpful INFERTILITY isn’t something men like to talk about, but it’s very common. Around 1 in 10 couples will have problems with conception, and in half of cases it is wholly or partly to do with sperm. In many cases, existing treatments can’t help – but a US start-up called Paterna Biosciences thinks it can change this. There are a huge range of reasons why men may struggle to father a child. …