Aborted foetuses could be mined for eggs
An aborted female foetus could become a mother if her remains were mined for egg follicles, says an Israeli scientist. Dr Tal Biron-Shental, from Rabin Medical Center near Tel Aviv, and colleagues at Utrecht University in the Netherlands have discovered that ovarian tissue from aborted second and third trimestre abortions can survive in a laboratory when cultivated with growth- enhancing chemicals and calf's blood.
"I'm fully aware of the controversy about this, but probably, in some place, it will be ethically acceptable," said Dr Biron-Shental. "There is a shortage of donated oocytes (eggs) for IVF -- oocytes from aborted foetuses might prove a new source of these. There are a huge amount of follicles in the foetal ovary." Her research is still preliminary and improvements in the chemicals are needed to help the follicles to mature.
Even if the research does not lead to a new source for IVF eggs, it could help in developing an optimum culture media for eggs and embryos, commented Dr Johan Smitz, of the Free University of Brussels.
Fertility experts had a range of views on the use of an aborted girl's eggs. IVF Australia medical director Geoff Driscoll said that it should remain in the realm of science fiction. An ethicist for the ESHRE, Dr Francoise Shenfield, of University College in London, said that the views of the public should be sought before it became a reality. Dr Roger Gosden, the director of the Jones Institute of Reproductive Medicine in the US, felt that it would probably be impractical in clinical setting, but useful in research. "Surely it's better to do some good with tissue than no good?" he told the BBC. ~ BBC, Jul 1; Wired News, Jun 30; Australian, Jul 2
One in 25 Danish babies begins life in petri dish
Denmark is the world leader in babies born from assisted reproduction technology. A report on the state of European ART presented at the ESHRE conference showed that nearly 1 in 25 Danish babies are born as a result of assisted reproductive technology (ART) -- 3.7% of all births in 2000. According to Dr Nyboe Andersen, of Copenhagen University Hospital, "Denmark has nearly reached saturation point, with hardly anyone who wants fertility treatment having to wait".
The report showed that ART in Denmark, with 1,826 treatment cycles per million people, was about seven times more popular than in the US, with 250 per million. Europe now performs about 60% of world ART treatment. Other leading countries in terms of availability of fertility treatment are Finland (1,440 treatment cycles per million), Slovenia (1,199), Sweden (1,034) and Iceland (1,020). The UK has 585 cycles per million. (The figure for Australia and New Zealand is around 1,300 treatment cycles per million.)
One of the greatest concerns of IVF experts is lowering the number of embryos transferred per cycle to cut down on the number of multiple births and associated birth defects. There is a wide variation in transfers of three or more embryos, with Greece the highest at 74.1% of all transfers and Sweden the lowest, with 3.8%. (In Australia and New Zealand, the proportion is about 15%.) ~ ESHRE press release, Jul 2
Surrogate mum: nice job for nice girls
Few surrogate mothers regret giving up the child they bore for a commissioning couple, a UK survey has found. Of 34 surrogate mothers interviewed by researchers from City University in London, 20 said that they felt no special bond with the child, and 14 said that they did. A year after the birth, only two of them said that they were experiencing emotional difficulties because of the separation. "None of the women reported feeling that the child was like their own," lead researcher Vasanti Jadva told the ESHRE conference.
Professor Susan Golombok said that the survey corrected mistaken notions about surrogacy. It was a positive experience for women who generally had altruistic motives. Many of them felt that "seeing their commissioning couples' faces once the child is born makes the whole process worthwhile." ~ Discovery Health Channel, Jul 2
Coincidentally, a 36-year-old English mother who holds the UK record of eight successful surrogate pregnancies has signed a 15,000 pounds expenses deal for a ninth child. Carole Horlock has two daughters of her own and her boyfriend has a child from a previous marriage. "People call me rent-a-womb, which is unkind," says Ms Horlock. "But I do what I do for the love of it. It's not about money, it's about making childless couples happy. I'm addicted to the whole process of being pregnant for someone else. Far from being ashamed of my role, I'm incredibly proud of it. I think 10 is a nice round number. I'll stop then." However, her former husband told the Evening Standard sourly that "money is definitely what drives Carole." ~ Evening Standard, Jul 1
IVF spreading rapidly in Muslim world
IVF centres have opened up in nearly 20 nations in the Middle East, taking advantage of a ban on legal adoption in Muslim countries in the region. Medical anthropologist Dr Marcia Inhorn told the ESHRE conference that Sunnis and Shi'ites have different attitudes towards ART. Sunni fatwas have allowed IVF and intracytoplasmic sperm injection (ICSI) so long as a couple's own gametes are used. Eggs or sperm from someone else would be regarded as adultery. Shi'ite leaders, on the other hand, have permitted donor egg technologies and, under certain conditions, even donor sperm. ~ ESHRE press release, Jul 1
Ban cloning, not embryo stem cell research, says ESHRE
Research on embryonic stem cells must continue even if adult stem cells prove to be the only types useful for clinical purposes, says the new president of ESHRE, Professor Arne Sunde, of University Hospital in Trondheim, Norway. "We think there is large potential for the use of embryonic stem cells in the future," he told a news conference. "We are not there yet, We may be a decade away from it." ~ ABC (Madrid), Jul 2; Reuters, Jun 30
Although it supports "therapeutic cloning", ESHRE has sternly disassociated itself from human reproductive cloning, describing it as unsafe and "totally irresponsible as well as unethical". Its outgoing president, Professor Hans Evers, also expressed his concern at the public relations damage suffered by ART and embryonic stem cell research because of reckless attempts to produce cloned babies. ~ ESHRE press release, Jun 29
At the same time, in a move which undercuts the official ESHRE position, an ethicist working for its US counterpart, the American Society for Reproductive Medicine, John A. Robertson, published a letter in the leading journal Nature which criticises a hasty ban on cloning. "If human reproductive cloning becomes safe, protecting the welfare of cloned persons... will cease to be a strong reason to oppose reproductive cloning." He called for "a much finer-grained policy analysis". ~ Nature, Jul 3
Perplexing study reassures IVF parents
A major study of the intelligence of children born through fertility techniques claims that they are not significantly different from their normally conceived peers at five years old. As well, they have similar birth weight and height, are no more likely to have behaviour problems and their parents are no more likely to suffer from high levels of stress.
However, 6.2% of children conceived through ICSI had birth defects, mainly in the urinary and genital systems, the gut, muscles, bones and skin -- compared to 2.4% for naturally conceived children. The comparable figure for children conceived through IVF was 4.1%, but researchers said it was not statistically significant.
Researchers suggested that ICSI may result in a higher number of malformations because the father's sperm likely to be abnormal and in the normal course of events would not result in a birth. It could also be due to the technique itself, which involves injecting the sperm directly into the egg quite near the nucleus.
The confusing mix of good news and bad news arising from the research project, which was conducted by Professor Christina Bergh of Sahlgrenska University Hospital, in Sweden, was reflected in headlines. Focusing on the intelligence and behaviour results, the Reuters banner was "Test tube babies develop like normal kids". Similarly, the BBC wrote "Public reassured on IVF safety". New Scientist, on the other hand, highlighted the alarming incidence of birth defects: "ICSI kids have more malformations". ~ Reuters, Jul 2; New Scientist, Jul 2; BBC, Jul 2
Womb transplants soon, say Swedish scientists
Healthy, fertile mice have been born from mothers with transplanted wombs, leading Swedish researchers to predict that the same technique will be available to women within three years. Mats Brännström, of Gothenburg University, feels that rejection will be the main problem -- apart from the formidable surgical difficulties. "Potential donors could be the mother or older sister [of the infertile woman] who has had her own babies, or other altruistic donors", he says. It raises the possibility that a daughter might carry a child in the same womb that she developed in. A human womb transplant was carried out in Saudi Arabia in 2000, but it failed after 99 days. ~ New Scientist, Jul 1
Yuk, cry IVF researchers
A Chicago fertility doctor's attempt to create human embryos with both male and female cells has been condemned as flawed and unacceptable by his colleagues. Dr Norbert Gleicher, of the Foundation for Reproductive Medicine, injected one, two or three cells from male embryos into 21 female embryos. Twelve of them developed normally until they were destroyed at about six days. Gleicher was toying with the notion that the chimeras would be resistant to single gene disorders.
Other IVF scientists were scathing in their remarks. Australia's Professor Alan Trounson described the experiment as "completely flawed". "You can't have half of Huntington's disease," he said. And ESHRE ethicists Dr Francoise Shenfield says that "I cannot conceive of any situation in which this particular technique would be acceptable, and if it cannot be applied there is not much use in experimenting with it." Dr Gleicher agrees that clinical applications appear at the moment to be far-fetched and ethically dubious, but he has still patented the technique and may investigate further. ~ Reuters, Jul 2; New Scientist, Jul 3
Amniotic fluid may contain potent stem cells
Austrian scientists have detected pluripotent stem cells in the amniotic fluid which cushions a baby in its mother's womb. Markus Henstschläger, of the University of Vienna, says that amniotic fluid "may represent a new source for stem cells without raising the ethical concerns associated with human embryonic research". It is still too early to tell what these cells could become and how fast they could multiply. Preliminary experiments suggest that they could become nerve cells. ~ New Scientist, Jun 30