Sarah Norcross
Progress Educational Trust
06 August 2009
[BioNews, London]
The Human Fertilisation and Embryology Authority (HFEA) published new figures showing the number of new egg and sperm donors registered in 2008. The figures published on 31 July 2009 show that the number of both sperm and egg donors has increased.
HFEA publishes new sperm and egg donor figures
ICSI – Intracytoplasmic Sperm Injection
Intracytoplasmic sperm injection (ICSI) is an in vitro fertilization procedure in which a single sperm is injected directly into an egg; this procedure is most commonly used to overcome male infertility problems. The cumulus cells that surround the egg are removed using an enzyme called hyaluronidase, this historically comes from bovine testis but new technology [...]