Word: tumor
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Dates: during 1980-1989
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...doctors, whose pioneering work was conducted over the last two years at the Harvard-affiliated Massachusetts General Hospital, will announce today in Copenhagen that they have discovered a process, using a protein, to enhance the body's natural ability to slow and reverse tumor growth...
...said that her grant--which escalates from $230,000 this year to $550,000 in 1992--will "give me the peace of mind to concentrate fully on my research." Sager will use the award for her study of tumor cells. Her research focuses on identifying genes that prevent the growth of carcinogenic tumors...
...lake is murky; people who live around it say that sometimes it looks orange. Joanne O'Donnell has lived in the Grove since 1964. All five of the O'Donnell children spent time at the Pastures, she says, and four have had endocrine problems. One daughter had a pituitary tumor; another daughter's spleen was removed last year. Mark, her eldest son, at 27 came down with "some virulent, crazy pneumonia that nobody could figure out." Then a large tumor was found on his pancreas. In 1980 he died...
When a malignant tumor sets up camp somewhere in the human body, it requires a generous supply of blood in order to survive and grow. Cancer cells secure this supply by somehow encouraging angiogenesis, the proliferation of networks of tiny capillaries, which connect the incipient tumor to nearby arteries and veins. But what are the signals that entice the blood vessels to leave their established pathways and converge on a tumor? Scientists have sought the answer to that question for years. If such signals could be blocked, they reasoned, the tumor would no longer grow...
Tamoxifen's effectiveness stems from the fact that the proliferation of breast-cancer cells in two-thirds of older women seems dependent on estrogen, the female sex hormone. The drug acts by blocking receptors for estrogen on the surfaces of cells that have migrated from the breast tumor, thus halting the division of the cells and preventing them from seeding tumors in other parts of the body. Unlike conventional chemotherapy, which usually causes loss of hair and severe nausea, tamoxifen produces only minor side effects, such as hot flashes and mild nausea, and only in about one-quarter of patients...