Word: nucleus
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Healthy disks are like a car's shock absorbers. A soft, gel-like substance in their center, or nucleus, helps cushion the jolts caused by simple movements like running and jumping. But for various reasons, a disk's hard, protective shell can degenerate, allowing the spongy interior to bulge out and press on spinal nerves. This can cause excruciating pain that radiates down the leg in a condition commonly called sciatica...
...create a new embryo, biologists implant the nucleus of an adult-donor cell into an egg-cell membrane. After extracting stem cells from the embryo, scientists may be able to grow cells and organs that are genetically identical to the donor's. Those could be implanted in the donor without fear of rejection...
...ongoing debate over stem cell research, "therapeutic" cloning has referred to the reproduction of embryos for the purpose of gathering stem cells. The proposal offered by Dr. Antinori, Panayiotis Zavos and Brigitte Boisselier, on the other hand, apparently involves taking an egg from a human mother, removing the nucleus and implanting the nucleus of a cell from the person who?s being cloned. (This is the same method used by the scientists who cloned Dolly the sheep...
...Along the way, though, scientists have amassed a wealth of information about how cancer works at the molecular level, from its first awakening in the aberrant DNA of a single cell's nucleus to its rapacious, all-out assault on the body. Armed with that information, they have been developing a broad array of weapons to attack the disease every step along the way. Many of these therapies are just beginning to reach clinical trials and won't be available to save lives for years to come. If you have cancer today, these treatments are likely to come too late...
Along the way, though, scientists have amassed a wealth of information about how cancer works at the molecular level, from its first awakening in the aberrant DNA of a single cell's nucleus to its rapacious, all-out assault on the body. Armed with that information, they have been developing a broad array of weapons to attack the disease every step along the way. Many of these therapies are just beginning to reach clinical trials and won't be available to save lives for years to come. If you have cancer today, these treatments are likely to come too late...