Word: mice
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Dates: during 1950-1959
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From Cook County Hospital, Dr. Daniel S. Kushner reported that a related germ, Mycobacterium fortuitum, can cause a disease like tuberculosis in mice. It is resistant to streptomycin and PAS (para-aminosalicylic acid) but it can be killed by isoniazid and also by the antibiotic tetracycline...
...intensive study of the relationship between cancer and cigarette smoking, it was clearly a breakthrough. Searching for the element in cigarette tar that causes cancers on mice (and, presumably, lung cancer in man), U.S. and Canadian scientists had narrowed the field to an identifiable fraction...
...told fellow experts in Atlantic City that they had separated the tar (by machine-smoking tons of cigarettes) into acid, alkaline and neutral portions. These were subdivided again until the researchers found the active cancer-causing fraction. It proved to be in the neutral portion. Isolated and applied to mice in the laboratory, it produced many cancers. Although it constitutes only 1½% of the tar, the dangerous material contains many different chemical compounds, including a number known as aromatic polycyclic hydrocarbons. Next steps: identify the compounds, find out where they come from, and try to eliminate them from cigarettes...
...Public Health Service announced contracts with five private laboratories for large-scale screening of 2,000 chemical compounds as possible cancer cell killers. Each compound will be tried on three different types of cancer implanted in mice...
...chapter"), and if his pupils expressed curiosity about a topic, he was apt to get carried away. He assigned some strange themes (sample topic, taken from Green Pastures: "Even bein' God ain't no bed of roses"). He also read parts of John Steinbeck's Of Mice and Men "so that the kids could learn this lesson, that everybody in this world needs somebody else...