Word: papillomas
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...butchers and meat handlers (HPV-7). So far, six types of HPV, all responsible for benign genital lesions, have also been associated with malignant cervical growths. Says Dr. Harald zur Hausen of the German Cancer Research Center in Heidelberg: "At least 80% of all cervical cancers are linked to papilloma...
...potential of the technique is already being tested by an international research team in the treatment of two children whose hereditary inability to produce the enzyme arginase had resulted in severe mental retardation. The team infected the youngsters with a natural virus, the Shope papilloma, which contains DNA that triggers arginase synthesis. Although the experiment is expected to produce no improvement in the children's mental condition, it may belatedly trigger the production of the missing enzyme and prove that viruses can carry beneficial messages to the cells...
Definition. Cancer is one of three types of tumor growing in the epithelium, that is, the cellular tissue which covers the body's free-surfaces, and lines tubes and cavities. One of these three types grows in finger-like processes or ridges. It is called papilloma and is benign. Also benign is adenoma, which lines gland-like depressions or cavities in the tissue structure. Under certain conditions papilloma and adenoma may infiltrate into healthy tissues and sometimes displace them. Here they resemble in effect the third epithelial tumor type-carcinoma, or cancer...