Word: eggs
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...fertility doctors counter that reproductive medicine is among the most regulated specialties in the U.S. Clinics must report to the Centers for Disease Control and Prevention the number of embryos transferred in each IVF cycle - in which sperm and egg are fertilized outside a woman's body, then transferred to her uterus - as well as the number of babies born as a result of that treatment cycle. (Read "A Brief History Of: Multiple Births...
...Hwang became a pariah, he had the right idea. Melton and others had been trying to do just what the Korean scientist claimed to have done - grow a new population of a patient's own cells. The key to the process is a supply of fresh, good-quality human eggs, which incubate skin cells taken from a patient. Building up such a stockpile, however, proved practically impossible. The egg-extraction process is invasive and carries certain risks; after the state of Massachusetts prevented donors from being compensated for their eggs, out of fear the women would feel coerced, HSCI ended...
...biggest reason IVF treatments so often fail is that even in the best of circumstances, not all eggs are created equal. Up to half the eggs younger women produce carry chromosomal abnormalities that make a full-term pregnancy impossible; that number climbs to three-quarters as women age. The problem is, you can't check the health of the chromosomes without damaging the egg and making it useless for conception. What's needed is a way to make a copy of those chromosomes and subject them to analysis, leaving the egg unharmed. The good news is, such a copy already...
...Healthy human beings carry 46 chromosomes, 23 contributed by the egg and 23 by the sperm. Eggs begin their development process with the full complement of 46, but shed half of them, tucking them into a small genetic bundle known as a polar body, which mirrors the chromosomes of the egg. Investigators at the U.K.'s CARE Fertility clinic, under the direction of Dr. Simon Fischel, harvested nine eggs from a woman who had undergone 13 failed cycles of IVF implantation and, in addition, suffered two miscarriages and an ectopic pregnancy. Using a laser scalpel, they extracted the polar bodies...
...true that the discoveries of Picasso and Pollock don't much ruffle the grave surfaces of Wyeth's work. For much of his career he painted not only in watercolors but in tempera, a pigment and egg-white medium that predates oil paint. His only art school was the Chadds Ford home he grew up in. His father was the greatly gifted illustrator N.C. Wyeth, whose thronged imaginings of scenes from Treasure Island and The Last of the Mohicans made him rich and famous. He decided early on that his talented son should also be an illustrator...