Word: embryos
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...then, roughly 40 more babies around the world have been born from frozen eggs, raising hope that what has long been considered the Holy Grail of fertility research might someday become a real alternative for women who want to get pregnant after their most fertile years have passed. Unlike embryo freezing, egg freezing doesn't require that women choose the baby's father years in advance...
...Eleonora Porcu at the University of Bologna both say recent technical advances have boosted success rates to the same level as embryo freezing, which is about 20%. In Porcu's most recent studies, 70% to 80% of the eggs survived the defrosting process without breaking down. Kim puts the current frozen-egg birth rate at 21%, based on a recently completed study in which 6 out of 28 women in South Korea became pregnant and later gave birth. One even had twins...
...does a would-be mom decide what to do? If she is a young woman facing imminent infertility from cancer treatments or other medical problems, then you could argue that even unknown odds are better than none. Otherwise, it's important to understand that many other options exist--from embryo freezing to sperm donation--with much better track records...
Tempting? No way, the cloning advocates assure us. We will never break that moral barrier. It is one thing to grow a cloned embryo, a tiny mass of cells not yet implanted. It is another thing to grow a cloned human fetus, with recognizable human features and carried in the womb of a woman...
...skeptical of these assurances. Why? Because just a year or two ago, research advocates were assuring us that they only wanted to do stem-cell research on discarded embryos from fertility clinics but would not create a human embryo in the laboratory just for the purpose of taking it apart for its stem cells...