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The jelly-like material present inside a eukaryotic cell - for example, plant and animal cells - that surrounds the nucleus.

Articles using this Glossary Item


Infertile couple have baby using mitochondrial donation

23 January 2017 - by Antony Blackburn-Starza

A baby has been born in the Ukraine following the use of an experimental IVF procedure known as mitochondrial donation... [Read More]

UK approves mitochondrial donation babies

19 December 2016 - by Annabel Slater

The UK has become first country in the world to formally approve the creation of IVF embryos through mitochondrial donation... [Read More]

'Three-person babies' grow up into healthy teenagers

31 October 2016 - by Georgia Everett

Seventeen children conceived through ooplasmic transplantation have all matured with regular health and cognitive abilities, according to a study... [Read More]

Mitochondrial donation technique used in Ukraine, doctors claim

17 October 2016 - by Ayala Ochert

Two women in the Ukraine are pregnant with babies conceived through mitochondrial donation as a treatment for infertility, according to a report in New Scientist... [Read More]

Embryonic stem cell production breakthrough achieved in mice

31 March 2014 - by Dr Lanay Griessner

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]

Nanoscale construction project on time and on budget

18 November 2013 - by Dr Naqash Raja

A system that allows researchers to control a tiny cellular transport network has been developed by researchers at the Universities of Oxford and Warwick... [Read More]

The dogma that had its day

15 July 2013 - by Professor John Galloway

It is not given to many to overturn a central dogma of scientific faith. But last year, John Gurdon was awarded the Nobel Prize for Physiology or Medicine for doing it... [Read More]

An eggsample of why it is hard to prove a negative

30 July 2012 - by Professor Robin Lovell-Badge

Earlier this year, a paper claimed to have found cells, called ovarian stem cells, in the adult ovaries of both mice and humans. These cells could apparently be grown in large numbers in the lab and could retain the ability to give rise to eggs. A new study finds no evidence for the existence of germline progenitors able to produce eggs in postnatal ovaries. Is a lack of evidence sufficient to win the argument?... [Read More]

Why the mitochondria debate shouldn't be left to the popular media

25 June 2012 - by Dr Virginia Bolton

Predictably, the publication of the Nuffield Council on Bioethics' report supporting further research into a technique to prevent inheritance of mitochondrial disease prompted a flurry of publicity. Equally predictably, nearly every newspaper - whether broadsheet or tabloid - went for the sensationalist angle and used the 'three-parent IVF' tag in their headline... [Read More]

Embryo's survival can be predicted based on egg's movement

15 August 2011 - by Dr Tamara Hirsch

Rhythmic activity detected in newly fertilised mouse eggs may provide a novel and non-invasive screening method for identifying embryos most likely to survive a full-term pregnancy, according to research published in Nature Communications... [Read More]

TV Review: Bang Goes the Theory

11 April 2011 - by Nkechi Nwachukwu

'Bang goes the theory' is a TV show that aims to bring science to the masses by 'putting science and technology to the test'. It tries to achieve this with the aid of four fairly young enthusiastic presenters and a fast-paced style. But did the show achieve its aim with IVF?... [Read More]

Who are the real creators of a living being?

19 April 2010 - by Dr Calum MacKellar

The announcement that scientists at the University of Newcastle have developed a new procedure that could eventually help women with dysfunctional mitochondria (the energy source of the cell), made headline news across the world... [Read More]

Controversial egg modification technique could increase IVF success in older women

15 November 2009 - by Dr Rebecca Robey

A controversial new technique to improve the quality of eggs from older women undergoing IVF is being developed by Japanese scientists. Because the procedure involves using eggs from two women to create a single viable egg for fertilisation, it has sparked a media furore over the potential creation of what have been inaccurately dubbed 'three-parent embryos'.... [Read More]

Lack of funding threatens progress in admixed embryo research

19 January 2009 - by Dr Nadeem Shaikh

A type of controversial admixed embryo research may now grind to a halt due to a lack of funding. Three research groups in the UK have licences to generate 'cytoplasmic hybrid' embryos, but none of them have managed to secure the money they need to proceed. The... [Read More]

Legal challenge over 'hybrid embryo' research

28 November 2008 - by Dr Megan Allyse

Two independent pressure groups are claiming that licenses allowing research into the creation of human admixed embryos are unlawful and that research should be halted immediately. A UK High Court judge heard arguments in London last Wednesday on whether or not to initiate judicial review of the... [Read More]

Reflecting on the role of PET and BioNews

25 March 2008 - by Professor Marcus Pembrey

We publish BioNews issue 450 as the new UK Human Fertilisation and Embryology Bill heads from the Lords to the House of Commons. A lot has happened in the fields of human genetics, assisted reproduction and embryo research since BioNews 400, including the rejuvenation of PET! A year on, we... [Read More]

HFEA authorises research using human-animal hybrid embryos

21 January 2008 - by Katy Sinclair

The Human Fertilisation and Embryology Authority (HFEA) License Committee has granted two one-year licenses permitting scientists at Kings College London and Newcastle University to carry out research using human-animal embryos. Over the past 12 months the HFEA has been deliberating on whether the creation of embryos using... [Read More]

A New Year, new fertility and embryology laws - and a new director for PET

07 January 2008 - by Sarah Norcross

Happy New Year. I would like to introduce myself as the new director of Progress Educational Trust (PET), the UK charity that publishes BioNews. Throughout its 15 year history, PET has been dedicated to facilitating informed discussion in the areas of assisted reproduction, embryo research and human genetics, via public... [Read More]

HFEA gives green light to 'cybrid' embryo research

10 September 2007 - by Dr Jess Buxton

The UK's Human Fertilisation and Embryology Authority (HFEA) has agreed in principle to allow the creation of embryos that contain both human and animal material. 'Cybrid' embryo research - a technique to derive human embryonic stem (ES) cells using 'hollowed-out' animal eggs - has been the focus of... [Read More]

The HFEA's 'cybrid embryo' decision is good news for patients

10 September 2007 - by Dr Amy Hunter

Following its public consultation, the Human Fertilisation and Embryology Authority (HFEA) has announced its decision that there is 'no fundamental reason to prevent cytoplasmic hybrid research' and that 'individual research teams should be able to undertake research projects involving the creation of cytoplasmic hybrid - or 'cybrid' - embryos if they can... [Read More]


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