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test tube babies

Genetics as it applies to evolution, molecular biology, and medical aspects.

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test tube babies

Postby saadia » Sat Jul 29, 2006 11:35 am

salam
i wanted to ask how test tube babies are produced and then implemented to mothers body.how they manage to have DNA of parents who are having this baby.many confusions about this topic.thanx and reply soon
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Postby mith » Sat Jul 29, 2006 2:05 pm

invitro fertilization?
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Postby canalon » Sat Jul 29, 2006 2:27 pm

To make short:

Eggs are collected with a syringe during a medical collection by the mother. The father have an easier time giving the sperm (no invasive procedure needed). The eggs and the sperm are then mixed togeteher in a test tube/cell culture dish in a medium that will provide the cells the good conditions to survive. When some embryosstart to develop (at a few cwlls stages) they are reinserted directly in the mother uterus to finish developing. Since all the eggs do not fixe themselves on the membrane to finsh their growth, and then get lost, or simply do not survive the transfer, there is usually more than one embryo reimplanted, hence the higher number of multiple birth (or the need of selective abortion) with in-vitro procedures.
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Postby fireblaze » Sun Jul 30, 2006 2:49 am

Why do they put the embryo back in the mother? cant food, antibodies and oxygen be provided by other means? if yes then why do they still reimplant the embryo into the mother?
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Postby mith » Sun Jul 30, 2006 4:25 am

good luck building a placenta...
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Postby canalon » Sun Jul 30, 2006 5:08 am

Or to answer more simply: No, there is more in growing than just feeding the right media. We still have to go the old way. The brave new world is not here yet.
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Postby saadia » Sun Jul 30, 2006 6:43 am

what are the results?are there any complications in getting that baby?because sometimes like in kidney transplant sometimes body doesnt accept that kidney because tissues doesnt match or things like that ?are there any thing like that in test tube babies?one other thing :y these babies are different from normal ones having blond look?
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Postby canalon » Sun Jul 30, 2006 2:02 pm

As far as I know there are no differences in the look or in terms of medicaly measurable factors between baby born after in-vitro fertilization and the old way.

As I told you in my first post, the inserted embryos do not always get implanted in the uterus. Contrary to a kidney graft, this doesn't do anything to the mother (women can live without babies ;) ) but this is fatal for the embryo, who in the other hand cannot survive out of the mother. But even in the ols fashionned way the embryo do not always get implanted. You just don't know it, and the financial outcome is much lower considering the prices for IVF....

And this is not linked to tissue match, because since even in the good old way, the HLA system and the blood group do not need to necessarily match.

And beside the conception/reimplantation step, the rest of the pregnancy is exatly the same as if the baby was conceived he old fashionned way. once reimplanted successfuly the body do not make any difference between the embryos. Complications can be the same.
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Postby Dustfinger » Fri Aug 11, 2006 11:59 am

I heard that in-vitro-babies are much more disposited to certain illnesses (like cancer) than babies growing up the normal way are. There´s always a risk connected to IVF.
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