Word: yao
(lookup in dictionary)
(lookup stats)
Dates: during 2000-2009
Sort By: most recent first
(reverse)
That may explain why IVF success rates are so variable; why, though two couples may produce an equal number of healthy embryos, one becomes pregnant while the other doesn't. "Using only these four factors, we can predict pregnancy with an accuracy of 70%," says Dr. Mylene Yao, professor of obstetrics and gynecology at Stanford and lead author of the study. "And it's extremely interesting that the four factors do not actually relate to the embryos that are transferred to the womb. So while it's still important to identify the best embryos for transfer, this suggests that...
...Yao notes that doctors in IVF clinics necessarily focus their attention on good embryos, selecting those that appear to be growing more vigorously than others, then choosing the most robust from that collection for implantation. But her study hints that taking into account the quality of the entire batch of embryos a couple produces might give doctors and their patients a better idea of their chances with IVF. Indirectly, says Yao, the four factors reflect all the other elements that play a role in a couple's fertility, including a woman's age and her medical history...
While fertility specialists have long known about these factors and their role in predicting IVF success, Yao and her team have set out to determine which ones matter most - and how each factor affects the others in individual cases. For instance, doctors know that older women in general have a more difficult time conceiving. But Yao believes it should be possible to better predict whether a woman in her 40s will get pregnant through IVF based on the overall quality of the embryos she and her partner produce. Doctors already use their own algorithms for determining a couple's chances...
...Yao's team is already planning to expand their study to analyze how well these four variables will be able to predict live births. If the factors prove predictive, they could provide infertile couples with some much-needed guidance in making a very difficult decision...
...time" to test themselves against other kids (and the occasional stray foreigner). Zhou smiles a little slyly when asked what his parents think of him spending all his time on the basketball court. After all, at about 5 ft. 9 in. (1.75 m), he's not exactly a Yao Ming-like freak of nature destined for the NBA. "They wonder what I am doing, why I am not studying," he says. "It might be a little annoying to them...