Word: tumors
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...being put to even greater use by physicians seeking to plan treatment programs for their patients. Doctors at Mary Hitchcock Memorial Hospital in Hanover, N.H., have programmed their Honeywell computer to sort through some 20,000 different radiation-treatment plans and extract the ten most suitable for a particular tumor patient...
Unable to reproduce themselves, viruses invade normal cells and use their hosts' chemical mechanisms to produce more viruses. Eventually, the infected cell ruptures, releasing the newly formed viruses to infect other cells. Dr. Howard Temin of the University of Wisconsin has shown that some tumor viruses behave differently. They reverse the normal order of genetic transmission, and with the aid of a recently discovered enzyme, use their RNA messenger molecules to produce DNA, the double-helix master molecule. In a way not yet understood, this triggers the cellular genetic machinery to order cell division, causing the cancerous growth that...
...unique series of experiments, Dr. Loren Humphrey of Atlanta's Emory University inoculated patients with a vaccine made, at least in part, with tissues taken from tumors similar to their own. He then followed up the inoculations by cross-injecting the patients with white blood cells from fellow patients who had presumably been sensitized to the tumor antigens. Though only long-term testing will tell if Humphrey's approach is effective, the preliminary results appear promising. One patient with bowel cancer has been free of the disease for three years, while three others have evidenced definite remissions...
...well-known story that Anthony Burgess began writing in earnest in 1959, when a doctor in Malaya told him he had a brain tumor and barely a year to live. In order to leave his ailing wife some kind of security, he returned to England and wrote five novels in one year. There was no tumor, but even after he heard the good news, Burgess never stopped working-or moving around. Disgusted by high taxes and public indifference, he left London after his wife died, continued his hectic pace in Malta, Rome, and this year Princeton...
...will make technical papers and even newspaper stories about cancer experiments a lot more comprehensible. In the chapter entitled "A Geneticist's View of Cancer," Watson first discusses the specific changes cancerous cells undergo on infection, and then details the molecular mechanisms proposed for the transformation of cells by tumor viruses. If left at that, this chapter would be a valuable compilation of the present data on cancer induction, but Watson goes further. He discusses medical instances of cancer thought to be related to the tumor virus evidence and lists several interesting theories, one of which proposes a connection between...