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Glossary

Embryo

A stage of development which, in humans, lasts for eight weeks after the fertilised egg first starts to divide.



Articles using this Glossary Item

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How personal genomics spells the end of donor anonymity

03 May 2016 - by Professor Joyce Harper, Debbie Kennett and Dr Dan Reisel

With the rise of consumer genetic testing, it is now possible for people to accidentally discover that they were conceived using donor eggs or sperm and for donors who thought they were anonymous to be traced by their offspring... [Read More]

Reassurance for mothers over mosaic aneuploidy in CVS

03 May 2016 - by Professor Magdalena Zernicka-Goetz

Although our recent findings on the fate of aneuploid cells in mosaic embryos have indeed been somewhat misrepresented in the press, our findings may still constitute a strand of hope for mothers who have had early test results showing mosaic aneuploidy... [Read More]

Spanish lab creates human sperm precursors from skin cells

03 May 2016 - by Ayala Ochert

Spanish scientists say they have created rudimentary sperm-like cells from skin and bone marrow cells taken from adult males... [Read More]

The final frontier - mouse embryos grown in space

25 April 2016 - by Dr Ashley Cartwright

Chinese scientists have successfully grown mouse embryos in space, the first reported development of mammalian embryos in space history... [Read More]

Abnormal fetuses are highly unlikely to heal themselves

18 April 2016 - by Professor Caroline Ogilvie

Press coverage of a recent study on mouse embryos speculates that termination of human pregnancies diagnosed with aneuploidy (a family of conditions including Down's syndrome) at prenatal diagnosis could be unnecessary, due to the ability of the fetus to 'heal itself'. In fact, the paper's findings are not relevant to aneuploidy detected at prenatal diagnosis... [Read More]

55-year-old becomes Britain's oldest mother of triplets

11 April 2016 - by Dr Linda Wijlaars

A 55-year old woman from Boston, England, has become Britain's oldest mother of triplets... [Read More]

Identity, disability and the genome

11 April 2016 - by Dr Felicity Boardman

My research on families living with the genetic disorder Spinal Muscular Atrophy calls into question some of the assumptions underlying the belief that genetic disease is, inherently and by its very definition, a trait to be avoided... [Read More]

Pre-pubertal ovarian tissue preservation – are we pushing the boundaries too far?

11 April 2016 - by Dr Edgar Mocanu

Oncofertility services allow some women to cryopreserve oocytes, embryos or ovarian tissue in order to protect their ability to have a family when faced with malignancy and adjuvant therapy. However, to date, fertility cryopreservation had very little to offer young, pre-pubertal girls... [Read More]

Second Chinese team create genetically modified human embryos

11 April 2016 - by Ayala Ochert

A second team in China report that they have created genetically modified human embryos, in an attempt to make them resistant to HIV, using the genome-editing technique CRISPR/Cas9... [Read More]

Mouse study raises debate over embryo viability testing

04 April 2016 - by Helen Robertson

The presence of genetic abnormalities in cells taken from the placenta at the early stages of pregnancy does not necessarily mean that a baby will be born with a genetic disorder, a study in mice suggests.... [Read More]

Book Review: Katherine Carlyle

21 March 2016 - by Amy Reed

Rupert Thomson's beautiful and powerful writing rests on a flimsy plot about a woman's journey from frozen embryo to lost adult... [Read More]

Reply to the signatories of the COGEN Consensus Statement

21 March 2016 - by Heidi Mertes, Sjoerd Repping & Guido de Wert

The cosignatories of the COGEN consensus statement attempt to refute our remarks and concerns about the increased use of preimplantation genetic screening by presenting the same low-level 'evidence' they continuously use to advocate the widespread adoption of PGS... [Read More]

Women receives transplanted ovary frozen aged eight

21 March 2016 - by Antony Blackburn-Starza

A 23-year-old woman may soon become become pregnant after receiving an implant of an ovary that had been frozen since she was eight years old... [Read More]

Lack of stem cells in womb linked to recurrent miscarriage

14 March 2016 - by Dr Lanay Tierney

Recurrent miscarriage could be caused by a lack of resident stem cells in the lining of the womb, according to a study... [Read More]

US Supreme Court declines to hear embryo dispute

14 March 2016 - by Antony Blackburn-Starza

The US Supreme Court has declined to hear a man's appeal against a ruling that gave his ex-partner a right to use embryos the couple had created together... [Read More]

Growing sperm in the lab: an embryonic science

07 March 2016 - by Dr Dusko Ilic

A recent announcement that scientists had created functioning spermatozoids from mouse embryonic stem cells in the lab made quite a splash in the media. However, one key point seemed to be overlooked... [Read More]

All donor-conceived people in Victoria now have the right to donor information

29 February 2016 - by Professor Sonia Allan and Damian Adams

The state parliament of Victoria in Australia has passed legislation that will enable all donor-conceived people to receive identifying information about their sperm, oocyte, or embryo donor(s). The model adopted is a world first in its application to donor conception... [Read More]

Embryo 'squishing' could improve IVF success rates

29 February 2016 - by Kulraj Singh Bhangra

Researchers in the USA have shown that 'squishing' an egg within hours of fertilisation can indicate how healthy and viable it is... [Read More]

Genetically identical twins born with different eye and skin colour

28 February 2016 - by Hannah Somers

Two baby girls from County Durham are thought to be the first genetically identical twins in the UK to be born with different eye and skin colour... [Read More]

Radio Review: Editing Life

22 February 2016 - by Sarah Pritchard

Professor Matthew Cobb investigates some of the implications of the groundbreaking CRISPR genome-editing technology in this BBC Radio 4 documentary... [Read More]

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Events using this Glossary Item

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Medical Frontiers: Debating Mitochondria Replacement - Open Authority Meeting
20 March 2013 10am-5pm Hatton, 51-53 Hatton Garden, London EC1N 8HN, UK
A meeting at which the Human Fertilisation and Embryology Authority will discuss the outcome of its recent consultation...
Human Fertilisation and Embryology Authority Open Meeting
12 September 2012  Hatton, 51-53 Hatton Garden, London EC1N 8HN, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Human Fertilisation and Embryology Authority Open Meeting
21 March 2012 1pm-4.50pm Hatton, 51-53 Hatton Garden, London EC1N 8HN, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Human Fertilisation and Embryology Authority Open Meeting
19 October 2011 10am-4pm Inmarsat Conference Centre, 99 City Road, London EC1Y 1AX, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Human Fertilisation and Embryology Authority Open Meeting
13 July 2011  Glaziers Hall, 9 Montague Close, London Bridge, London. SE1 9DD, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Human Fertilisation and Embryology Authority Open Meeting
23 March 2011 1pm-3.15pm Hatton, 51-53 Hatton Garden, London EC1N 8HN, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Genetic Testing in the 21st Century: Should We Screen the Human Embryonic Genome before Implantation?
08 March 2011 1.15pm-1.55pm Darwin Lecture Theatre, Darwin Building, University College London, Gower Street, London WC1E 6BT
A presentation by Dr Joyce Harper to mark International Women's Day...
Human Fertilisation and Embryology Authority Open Meeting
08 September 2010 11am-3pm Glaziers Hall, 9 Montague Close, London Bridge, London. SE1 9DD, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Human Fertilisation and Embryology Authority Open Meeting
07 July 2010 10.30am-3.30pm 9 Montague Close, London Bridge, London SE1 9DD, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Preparation for Donor Conception Parenthood
24 April 2010 10am-6pm London, UK
A workshop for lesbians/single women contemplating use of egg, sperm or embryo donation or currently having treatment...
Preparation for Donor Conception Parenthood
12 April 2010 10am-4pm London, UK
A workshop for those contemplating use of egg, sperm or embryo donation or currently having treatment...
Human Fertilisation and Embryology Authority Open Meeting
24 March 2010  Dexter House, 2 Royal Mint Court, Tower Hill, London EC3N 4QN, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Preparation for Donor Conception Parenthood
06 March 2010 10am-6pm Manchester, UK
A workshop for those contemplating use of egg, sperm or embryo donation or currently having treatment...
Preparation for Donor Conception Parenthood
16 January 2010 10am-4pm London, UK
A workshop for those contemplating use of egg, sperm or embryo donation or currently having treatment...
Human Fertilisation and Embryology Authority Open Meeting
09 December 2009  Newcastle, UK
An opportunity to see firsthand how the Human Fertilisation and Embryology Authority makes decisions...
Preparation for Donor Conception Parenthood
21 November 2009 10am-6pm Midlands, UK
A workshop for those contemplating use of egg, sperm or embryo donation or currently having treatment...
Preparation for Donor Conception Parenthood
07 November 2009 10am-6pm London, UK
A workshop for lesbians/single women contemplating use of egg, sperm or embryo donation or currently having treatment...
Preparation for Donor Conception Parenthood
03 October 2009 10am-4pm London, UK
A workshop for those contemplating use of egg, sperm or embryo donation or currently having treatment...
Running for Answers
16 September 2009  Club Med Athenia, Marathon 19007, Attica, Greece
The 7th European Congress on Reproductive Immunology...
Reproductive Medicine: Causes and Treatment of Infertility
10 September 2009  Institute of Physics, 76 Portland Place, London W1B 1NT, UK
An event addressing current issues and latest developments in fertility, clinical embryology and reproductive biology...

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