Sperm made from human bone marrow
13 04 2007Scientists say they have successfully made immature sperm cells from human bone marrow samples.
If these can be grown into fully developed sperm, which the researchers hope to do within five years, they may be useful in fertility treatments.
But experts have warned the findings from the German study should be interpreted with caution at this very early stage.
And proposed new laws would ban their use in fertility treatments in the UK.
