http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2008/02/15/nivf115.xml
IVF 'creating an infertility timebomb'
By Rebecca Smith, Medical Editor
Last Updated: 2:10am GMT 15/02/2008
Britain is facing an infertility timebomb because the increasing use of IVF means that couples with inherited fertility problems are able to have children and pass the condition on to the next generation, scientists report today.
Other factors contributing to future infertility include increases in obesity, sexually transmitted diseases and the number of women choosing to have children later in life.
Couples who conceive using IVF pass on their genetic fertility problems to the next generation
If the situation continues unchecked, within 10 years one in three couples will struggle to have children, compared with one in seven today.
Around one per cent of all births in Britain are the result of IVF or donor insemination and around 11,000 babies are born annually after fertility treatment. Each cycle of IVF costs between £4,000 and £8,000 and success rates are almost 30 per cent for women under the age of 35.
Writing in the British Medical Journal today, Prof Jens Peter Ellekilde Bonde, a professor of occupational medicine at Aarhus University in Denmark, and Prof Jørn Olsen, a professor of epidemiology at the University of California, said: "With the advent of assisted conception, subfertile couples may have as many children as fertile couples, so that genetic factors linked to infertility will become more prevalent in the generations to come."
Doctors said it was highly unlikely that using fertility treatment to overcome genetic causes of infertility could ever breed a race of humans completely unable to conceive naturally. Dr George Ndukwe, the medical director of Carefertility Nottingham, said: "The genetic component of infertility is largely in the male and is involved in sperm production. These men would never conceive naturally so by helping them conceive through IVF and ICSI (itra-cytoplasmic sperm injection) that component can be passed on and we counsel couples about this.
"They often say 'well if you can treat me, you can treat my son' and so do not see it as a major problem.
"The effect on overall infertility is small but it is real and it could increase."
More research should be carried out into the causes of infertility such as exposure to chemicals in the womb, and lifestyle and environmental factors, the scientists said.
Experts said there is some evidence that some men may have a genetic fault causing their low sperm count and there is a suggestion that some disturbances in ovulation may be caused by changes in the genetic make-up.
Allan Pacey, a senior lecturer in andrology at the University of Sheffield, said: "The social changes over the last 30 or 40 years dwarf any genetic effect.
"The obesity problem, chlamydia and the tendency for smaller families and older mothers is having more of an effect on fertility than genetics."
the comments are great. some are breederish some arent.
Dammit, is everybody blind and stupid?
The planet is full up. In years to come we are going to see pestilence, war and famine on an unprecedented scale, exacerbated by conflicts over the ever-dwindling supply of water, and all people seem to be able to do is breed like sex-crazed rabbits.
Posted by Dave Rogers on February 15, 2008 9:41 AM
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DONT TRY TO BEAT NATURE IT WILL BITE YOU BACK.IF YOU CANT HAVE CHILDREN THEN ITS NATURE TELLING YOU SOMETHING IS WRONG. SO MAKE A DECENT LIFE FOR YOUR SELF AND HELP CHILDREN IN NEED OF HELP AND FRIENSHIP AS A VOLUNTEER IN VARIOUS CHARITIES. FOR AS LONG AS THERE IS MONEY TO BE MADE COUPLES WILL BE ENCOURGED TO USE THE SERVICE OFFERED
Posted by max bernstein on February 15, 2008 9:40 AM
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I just post the stories, for interest.. for everyone
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