ICSI (intracytoplasmic sperm injection) is a variation of in-vitro fertilisation (IVF). During ICSI, a single sperm is injected directly into an egg, in order to fertilise it.
Two studies, one looking at the efficiency, and one at the safety of intracytoplasmic sperm injection (ICSI), a fertility treatment which involves the direct injection of a single sperm cell into a woman's egg during a normal IVF procedure, were published in The Lancet last week. One of the studies...
The first horses in Europe to be born, five and six weeks ago, from IVF were announced last week. They were produced using intra-cytoplasmic sperm injection (ICSI) at the Equine Fertility Unit in Newmarket. It is hoped that the technique will produce medal-winning quality horses and help to save rare...
A team of scientists from the University of Bologna in Italy has developed a new technique for freezing human eggs that improves the survival rate after thawing. The researchers, who published their results in the latest issue of the journal Human Reproduction, say they achieved fertilisation rates comparable to those...
Researchers have found that giving drugs to make the ovaries produce extra eggs may be unnecessary for many women undergoing IVF treatment. The team, based at King's College Hospital in London, showed that in 60-70 per cent of cases, the overall chances of pregnancy are just as good if...
US and Japanese scientists have developed a new test to diagnose infertility in men who produce apparently normal sperm. The teams, based at Oregon Health Sciences University and the Tohoku University School of Medicine in Sendai, Japan, hope that the new test will help doctors identify a cause in some...
A group of UK researchers has discovered that the entry point of a sperm as it fertilises a mouse egg determines the orientation of the resulting embryo. Their findings, published in Nature, could have implications for a technique used to treat male infertility, in which doctors create IVF embryos by...
4000 fertility experts gathered in Bologna, Italy last week for the annual conference of the European Society of Human Reproduction and Embryology. As well as the mouse 'nursery' for human eggs, several other presentations at the meeting were covered in the UK media: Professor Karl Nygren, of the Sofia Hospital...
A team of US researchers, based at the University of California, San Francisco, has found evidence of faulty DNA repair in the testes of some infertile men. Their findings, published in the June issue of Human Reproduction, could throw light on previously unexplained cases of male infertility, but may also...
A new reproductive technology is on the horizon. Egg fusion, described in this week's BioNews, could have a significant impact on the lives of many women who cannot currently conceive naturally. Apart from the women with fertility problems who might benefit from this technique, egg fusion could also be of...
A team of French, Spanish and Italian researchers has developed a new technique that may one day allow some infertile women to have their own genetic child. The new method, reported by the scientists in this month's issue of Human Reproduction, involves replacing the genetic information of a donor egg...
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