Mouth tumors increase; same virus causes cervical cancer
Source: The Oregonian (www.oregonlive.com) Author: Cynthia Billhartz Gregorian St. Louis Ten years ago, most of Dr. Brian Nussenbaum's oral cancer patients were men over 60 who used tobacco and drank heavily. Today, his patients with oral cancer look different. And so does the risky behavior that seems to be leading to their cancer. Nussenbaum, an ear, nose and throat doctor at Washington University, estimates that 70 percent of his cancer patients have tumors on the back of their tongues and tonsils caused by human papillomavirus-16. Most patients are between ages 45 and 55. About half are women. And experts suspect that all got the HPV from oral sex. "We know now that 98 percent of cervical cancer is caused by HPV, and mostly HPV-16," says Nussenbaum. "But no one talks about how you can also get mouth cancer from it." Last week, Dr. Harald zur Hausen, a German doctor and scientist, was awarded the Nobel Prize for medicine for finding human papilloma viruses that cause cervical cancer, the second-most-common cancer among women. In awarding zur Hausen the prize, the Nobel assembly said he "went against current dogma" in the 1970s when he discovered that certain types of HPV caused the cancer and that the DNA of HPV could be found in tumors. More than 20 years passed before researchers at Johns Hopkins Kimmel Cancer Center reported a link between HPV and these specific throat cancers in 2000. They and other medical experts suspect the increase in HPV oral cancer stems [...]