Word: uteruses
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Like discarded embryos from fertility clinics, cloned embryos for research are not meant for implantation in the uterus, says Guenin, addressing concerns that the practice will lead to reproductive cloning...
Eight years ago, after she had a hysterectomy at age 42, Roslyn Washington was left with an unexpected side effect. Her doctors, who had recommended removing her ovaries as well as her uterus because of fibroid tumors and an ovarian cyst, had warned her about a lengthy recovery period. But, she says, "I was not aware of the fact that there would be a decrease in my sexual life." That's something of an understatement. Washington, an office manager from Silver Spring, Md., who is married and has a teenage daughter, says that after the surgery she felt no sexual...
...better understanding of the biochemistry of arousal, as well as advances in imaging techniques, doctors are closing in on some possibilities. Their efforts are leading them to the hormone oxytocin, which may be the key lubricant for the machinery of sex. Known for controlling the muscles of the uterus during childbirth, oxytocin surges up to five times as high as its normal blood level during orgasm. Studies in animals have also revealed oxytocin's softer side. It is responsible for helping individuals forge strong emotional bonds, earning its moniker as the cuddle hormone. Released in the brain, oxytocin works...
...Vitro Fertilization When Louise Brown was delivered in England on July 25, 1978, the test-tube-baby industry was born. Scientists had joined her parents' eggs and sperm in a Petri dish and then implanted the embryo in her mother's uterus. (Elizabeth Carr, above, was the U.S.'s first in vitro-fertilized baby.) Despite a dismal 15% success rate, the process remains the treatment of choice for infertile couples...
...first genetic screening test (to determine sex) is performed on embryos before they are implanted in the uterus...