Word: fetuses
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Scientists at Advanced Cell Technology in Worcester, Mass., took a skin cell from Cow A, cloned it (by injecting the nucleus into a cow egg whose nucleus had been removed), then implanted the embryo in the uterus of Cow B. That embryo clone grew into a fetus, which, had it been born, would have been Cow C. But it was not born. The fetus was removed from the uterus and harvested for its tissues. These tissues from the clone were then put back into the original Cow A. Lo and behold, it worked. These cells from the clone were...
...cloning advocates. We would never countenance such work in humans, they say. Cows, yes, but we would never implant a cloned human embryo in the uterus of a woman and grow it to the stage of a fetus. We solemnly promise to grow human clones only to the blastocyst stage, a tiny 8-day-old cell mass no larger than the period at the end of this sentence, so that we can extract stem cells and cure diseases that way. Nothing more. No fetuses. No implantation. No brave new world of fetal farming...
...fevers, rashes, swelling and terrible headaches. Some thought the doctor's behavior was odd. While on the vaccine, one patient, Dawanna Robertson, discovered she was pregnant; she panicked when she recalled the warning on the consent form she had signed: "The potential effects of these drugs on the growing fetus...may include serious birth defects." Yet when she voiced her fears, Robertson says, McGee assured her that the vaccine couldn't pass through the placenta. She received another injection that...
...Anybody who's been near one knows that indoor swimming pools reek of chlorine. But what you may not know is that when chlorine mixes with skin cells and skin-care products, it can form a variety of volatile compounds, some of which may be harmful to a developing fetus. Researchers in Britain found that the amount of at least one organic compound, chloroform, is 35 times higher in pools than in tap water. Advice to pregnant women: shower off before taking the plunge...
...problems remain. Transplant surgery is a punishing procedure, and the battery of antirejection drugs a patient must take can cause grueling side effects. If a transplant recipient did become pregnant, the body, already fighting to reject the alien organ, might reject the fetus too. And if the fetus survived, the circulatory problems that caused the Saudi transplant to fail could only get worse during pregnancy, when blood volume increases dramatically...