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Baby born from sperm frozen for 21 years
By Shaoni Bhattacharya
A baby has been born using sperm frozen for 21 years - a world record, say UK researchers. The healthy boy was born to a father who had his sperm frozen in 1979 before he was treated for testicular cancer at the age of 17.
"We believe this is the longest period of sperm cryopreservation resulting in a live birth reported in the scientific literature," says Elizabeth Pease, consultant in reproductive medicine at St Marys Hospital, Manchester, and one of the team.
"This case report provides evidence that long-term freezing can successfully preserve sperm quality and fertility," says Greg Horne, a senior embryologist at St Marys Hospital and team leader. ... "
No time limit
The baby boy was born in 2002 after his father and mother had undergone in-vitro fertilisation. The frozen sperm was thawed and inserted into eggs to create the embryos used.
Barratt says the success is no surprise as frozen animal sperm has been thawed and used successfully up to 40 years after it was first stored.
Approximate Word count = 895
Approximate Pages = 3.6
(250 words per page double spaced)
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