Word: phosphorus
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...Armed with radioactive phosphorus supplied by the AEC, two top U.S. specialists flew to Yugoslavia to treat Cardinal Stepinac for polycythemia (an excess of red blood cells, sometimes called "reverse leukemia"): the University of California's Radiation Expert John H. Lawrence (TIME, April 7, 1952) and Chicago Surgeon John F. Ruzic...
...Nash admits that his steady stream of conversation during an experiment sometimes interferes with his concentration on details. Chemistry 2 alumni still talk of the day that he forgot to put a sheet of asbestos under a plate of white phosphorus. When the phosphorus ignited, Nash had to dash from the room with the flaming mass before it spread over Malinckrodt. Chemist Nash grumbles that "if things possibly can go wrong, they do go wrong precisely when they can do the most harm...
...major factor in Kentucky's pre-eminence in breeding thoroughbreds is the quick-growing, perennial bluegrass. Under lying this valuable feed crop is a layer of rare old limestone, which supplies phosphorus and calcium for the building of sturdy bones, elastic muscles and strong tendons...
Facts for the Surgeon. No less important is the mass of red blood cells in the body. Some researchers hold that the "count" of red cells in a droplet of blood is not precise enough. Lawrence now gets a more accurate estimate by tagging the red cells with phosphorus. Then there is the question of blood volume; a surgeon needs to know how much blood may have been lost by injury before he undertakes an amputation, and then how much is lost during the operation. With iodine-131 or phosphorus-32 and a Geiger counter this too, is relatively easy...
...Bone cancers are hard to treat because if radioactive elements (such as calcium and phosphorus) settle in hard bone, they also affect the marrow and damage the blood-making cells. At Oak Ridge, doctors and radiologists have just eliminated gallium7 2 as unsuitable for treatment, largely because it takes too long to settle in the bone (and meanwhile loses most of its radioactivity). Next on their list is gallium...