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Showing posts with label Ovary Transplant. Show all posts
Showing posts with label Ovary Transplant. Show all posts

Tuesday, June 21, 2011

Mother To Donate Uterus To Daughter For Experimental Operation


From: http://parentables.howstuffworks.com/


Photo: Focus Laser Vision / Creative Commons License

A British woman born without reproductive organs is hoping to conceive by undergoing an operation for a uterus transplant -- supplied by her own mother.

Sarah Otterman, a 25-year-old biology teacher who lives in Stockholm, was diagnosed with Mayer Rokitansky Kuster Hauser syndrome at birth and cannot have children, though she has considered adoption.

But now she's a potential candidate for a womb transplant trial in Goteburg, Sweden, which will test the success of the experimental procedure in ten pairs of donors and recipients. If the organ is not rejected after one year, in-vitro fertilization (IVF) drug therapy will be administered to boost the patients' chances of conceiving after organ transplantation.

After much discussion, Sarah's 56-year-old mom, Eva Otterman, a managing director at a Nottingham lighting company, volunteered to be her daughter's donor. In fact, the majority of the donor pairs are mothers and daughters, something that didn't surprise Dr. Mats Brännström, head of the transplant team. He told the Toronto Star:

It is the natural fit. There may be an advantage with the mother because the daughter is similar in tissue type so you have less of rejection. The mother would also be more determined to help their daughter in this way than other people.

Despite the odd circumstances, it's a true example of deep motherly love. Brännström and his team have already done trials with 25 female baboons -- though without the IVF therapy -- and estimates a 60 to 70 percent chance of success with humans based on preliminary data. If the first five human womb transplants to be done in 2012 are successful, this procedure could eventually become available worldwide to thousands of women who cannot naturally conceive. All of this leads us to ask, would you be willing to donate or receive a womb transplant from a relative?

Read more over at the Toronto Star.

Tuesday, November 11, 2008

Infertile woman to give birth after her twin sister donates an ovary in world first

By Neil Sears


sherman silber

Pioneer: Dr Sherman Silber carried out the procedure

An infertile woman is about to become the first to give birth following a full ovary transplant.

The 38-year-old Londoner was declared sterile at 15 and went through the menopause while still a teenager.

But in a revolutionary procedure she received a new ovary transplanted from her identical twin sister and, after getting pregnant, she is due to give birth this week.

She became pregnant, and is due to give birth this week.

The dramatic development gives new hope of motherhood to hundreds of thousands of women desperate for a baby.

Those who could ultimately benefit include the 100,000 British women who have gone through an early menopause, as well as those whose fertility is impaired by cancer treatment - as it could now be possible to freeze healthy ovaries for use later in life.

The doctor who carried out the transplant, Dr Sherman Silber, has for some years been specialising in transplants between identical twins, because there is a very low risk of organs being rejected.

Ovary transplants from non-identical twins would have to be accompanied by heavy doses of immune system-suppressant drugs to ensure the organs are not rejected, meaning pregnancy would be less likely.

But those women who manage to freeze their own ovaries in advance would have no rejection problems.

And Dr Silber has also discovered that identical twins are in fact five times more likely than the rest of the female population to suffer ovary damage, making his pioneering new procedure particularly relevant to them.

For infertile women, receiving a new ovary has many benefits not provided by IVF treatment, as the working organ produces useful hormones.

The London woman involved in the case had stopped having periods 22 years before her transplant - but her twin had given birth twice.

She agreed to provide one of her ovaries for the transplant, which was conducted by microsurgery expert Dr Silber at the Infertility Center of St Louis in Missouri, America, last year.

In a difficult procedure, he used keyhole surgery to remove the walnut-sized ovary from the donor before implanting it in her sister. He had to reconnect minuscule blood vessels just a third of a millimetre across to ensure the organ would survive.

mom and baby

Many benefits: In addition to pregnancy, ovary transplant patients benefit from the hormones produced by the new organ

Within three months the recipient began to ovulate normally, and after five months she had hormone levels the same as her sister. As a result of the increased hormone production, the osteoporosis she had been suffering improved.

And around a year after the transplant, the woman found she was pregnant.

Dr Silber, who is to discuss the operation at a meeting of the American Society for Reproductive Medicine today, said the operation was 'extremely delicate'.

Three years ago one of his infertile American patients, Stephanie Yarber, 24, of Arkansas, gave birth after receiving a transplant of some ovarian tissue from her identical twin, but the birth due this week will be the first in the world after the transplant of an entire ovary.

Speaking of the full transplant, Dr Silber said: 'Reconnecting these blood vessels deep inside the pelvis can be a tactical challenge.

'The ovarian artery is less than a third of a millimetre in diameter - in fact so small many gynaecologists have never seen it.'

Dr Silber, who has carried out several entire ovary transplants, believes the transplanted organ could continue working for up to ten years.

Forty years of research on animals lay behind the development into transplanting ovarian tissue between humans.

But interest in his work exploded after the case of Mrs Yarber was publicised. He was promptly contacted by three pairs of identical twins who wanted help, and as a result conducted research into the likelihood of early menopause for twins.

It was discovered that while an average of only one per cent of all women go through the menopause before 40, five per cent of female twins - a rate five times as high.

It has been suggested the higher rate is connected to the fact that the twins had to share their mother's womb, leading to some biological disturbance.

A fertility test that doubles the chances of pregnancy offers new hope to childless couples.

The test, developed at the Colorado Centre for Reproductive Medicine, helps identify the healthiest embryos for use in IVF treatment and could cut the risk of having twins or triplets.