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Glossary

Fertilisation

The fusion of male and female gametes to form a zygote.



Articles using this Glossary Item

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Known-donation contact case: Children's lives 'irredeemably marred' by dispute, says judge

10 November 2014 - by Chee Hoe Low

A six-year legal battle for contact over two girls conceived via known-donor fertilisation has had a 'destructive effect' on the girls' childhood, a High Court judge has warned in his third substantive judgment in the case.... [Read More]

UK Government plans to legalise mitochondrial replacement for IVF

28 July 2014 - by Rachel Brown

The UK Government has announced that regulations around the use of mitochondrial replacement techniques will be presented to Parliament in the next few months... [Read More]

Twelve healthy babies born following 'safer' IVF hormone treatment

28 July 2014 - by Purvi Shah

Twelve healthy babies have been born after trials of a hormone treatment called kisspeptin-54 that has been hailed as a safer way to mature women's eggs prior to IVF... [Read More]

Event Review: The Ethics of Mitochondrial Replacement Therapy

21 July 2014 - by Professor Vardit Ravitsky, Dr John Appleby, Professor Stephen Wilkinson, Dr Anthony Wrigley and Dr Annelien Bredenoord

Ethical dimensions of the emerging technology of mitochondrial replacement were the focus of a symposium that took place on 25 June at the 12th World Congress of Bioethics in Mexico City.... [Read More]

Mice born using lab-grown sperm from frozen testicles

07 July 2014 - by Siobhan Chan

Healthy mice have been born using sperm grown in the lab from a sample of cryopreserved testicular tissue... [Read More]

Mitochondrial replacement likely to be safe but more research needed, says report

09 June 2014 - by Alice Plein

Two experimental IVF techniques that could prevent certain types of incurable genetic disease are 'not unsafe', a report from the UK's Human Fertilisation and Embryology Authority has found.... [Read More]

Choose your poison: tobacco, alcohol don't harm sperm; cannabis does

09 June 2014 - by Barbara Czub

Cannabis use affects thesize and shape of sperm, according to a large study on lifestyle choices, environmental factors and semen quality... [Read More]

Insulin-producing cells created by cloning

06 May 2014 - by Dr Gabrielle Samuel

Researchers have transformed embryonic stem cells from a diabetic woman into insulin-producing beta cells, a study in Nature reports... [Read More]

Trauma can be passed down through sperm

28 April 2014 - by Victoria Burchell

Stress in early life can alter the production of small sections of the genetic material RNA in the sperm of mice, affecting behaviour not only in the mice themselves but also in their offspring, research suggests... [Read More]

Stuck on you: sperm-to-egg-binding protein discovered

28 April 2014 - by Rachel Brown

A protein that allows eggs and sperm to fuse together has been identified by scientists at the Wellcome Trust Sanger Institute, Cambridge... [Read More]

Judge urges birth and genetic mothers to settle their custody battle

31 March 2014 - by Ari Haque

The UK's Court of Appeal has urged two women who were in a same sex relationship to reach an agreement over the custody of their five-year-old twins... [Read More]

Embryonic stem cell production breakthrough achieved in mice

31 March 2014 - by Dr Lanay Tierney

A technique to generate mouse embryonic stem cells could, if repeated in human cells, improve access to stem cells by using fertilised eggs that would previously have been discarded... [Read More]

Conservative MP says mitochondrial donation will produce 'genetically modified children'

17 March 2014 - by Dr Louisa Petchey

The Conservative MP for North East Somerset, Jacob Rees-Mogg, has said that mitochondrial donation will produce 'genetically modified children' with 'three parents', and was 'effectively cloning'... [Read More]

FDA Advisory Committee weighs up mitochondrial replacement

03 March 2014 - by Chee Hoe Low

The USA's Food and Drug Administration (FDA) is considering whether to allow human clinical trials of mitochondrial replacement, an IVF technique that uses gametes from three people... [Read More]

How to make a mouse from scratch: a few drops of blood, one pinch of salt, and a drop of vinegar…

03 February 2014 - by Dr Dusko Ilic

This apparent witch's recipe is how a group of Japanese scientists have generated new mice: a remarkable finding that proves that true greatness lies in simplicity... [Read More]

An inconvenient truth: ICSI is not necessary for the majority of IVF patients

11 November 2013 - by Dr Steven Fleming

Despite the views of several IVF experts that intra-cytoplasmic sperm injection is overused in IVF, it continues unabated. So why is nobody listening?... [Read More]

Stem cells grown from adult tissue in live mice

16 September 2013 - by James Brooks

For the first time living tissue in mice has been induced into an embryonic state without any intervening preparation in the lab... [Read More]

Israel: lesbian couple refused surrogacy procedure

27 August 2013 - by Ayesha Ahmad

A court in Israel has rejected a lesbian couple's request to undergo a surrogacy procedure in the country.... [Read More]

Frozen sperm as effective as fresh when taken directly from testicle

12 August 2013 - by Dr Linda Wijlaars

Sperm taken by biopsy from the testicles of men with a certain kinds of infertility can be cryopreserved without reducing the chances of a successful pregnancy... [Read More]

Low-tech, accessible IVF could cost just €200

09 July 2013 - by Siobhan Chan

A new technique using basic equipment to perform IVF could dramatically reduce costs and make the treatment 'universally accessible', say scientists reporting that 12 babies have been born so far from this approach... [Read More]

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