Cancer Men HPV
October 5, 2011 by staff
Cancer Men HPV, O**l sex does explain the increase in the number of cases of throat cancer among men? A new report showed that HPV is fueling a 28 percent increase in cancer cases orpharyngeal since 1988 – an additional 10,000 cases per year.
If that trend continues, this type of throat cancer than cervical cancer exceed the country’s largest and HPV-related cancer within 10 years, researchers from Ohio State University and the National Cancer Institute announced Monday .
“There is an urgency to try to find a way to avoid this,” said Dr. Amy Chen, the American Cancer Society.
While women can also develop oral cancer caused by HPV, the risk is higher and increasing among men, the researchers said in the report, but are not sure why.
For the study – published in the October 3 issue of the Journal of Clinical Oncology – researchers examined tumor tissue from 271 patients that had been stored in Hawaii, Iowa and Los Angeles. The proportion who were HPV-positive increased from 16 percent in late 1980 to almost 73 percent of the 2000′s.
Translate that to the general population, and the researchers concluded that the incidence rates of HPV-positive tumors more than tripled, while HPV-negative tumors halved.
Previously, the use of snuff and alcohol were the main causes of these tumors, occurring in the tonsils, base of the throat, tongue and upper. But in recent years, studies have shown HPV is playing an important role in these cancers, probably due to an increase in oral sex, even snuff consumption has fallen.
While HPV is the most common disease of sexual transmission, studies show women’s bodies usually clear the virus from the cervix quickly, only an infection that persists for years a cancer risk. It is not known if oral HPV behaves similarly, it is unclear whether oral sex is the only way it is transmitted, said Dr. Gregory Masters of the American Society of Clinical Oncology.
In any case, more than 11,000 cases of cervical cancer will be diagnosed this year, a figure that has been declining over time through better Pap tests. The researchers estimated that annual cases of cervical cancer will be reduced to 7,700 in 2020 – compared with nearly 8,700 cases of HPV-positive oropharyngeal cancer – about 7,400 of them in men.
The report raises the question: Can the vaccine currently being administered to young women to protect men against HIV through oral?
HPV vaccine is approved for children to prevent genital warts andanl cancer, further problems caused by human papilloma virus. But protection against oral HPV has not been studied in either sex, said the report’s author Dr. Maura Gillison, a specialist in head and neck cancer at Ohio State.
A spokeswoman for Merck & Co., maker of the HPV vaccine Gardasil, said the company has no plans to study oral cancer vaccine.
In any case, the cancer society Chen said the report suggests that patients with HPV-related oral tumors have a better chance of survival than those with other types of this cancer, possibly because they tend to be younger.
Sore throat that lasts more than two weeks? See a doctor, Chen said:
“Just because you’re not a smoker or drinker, does not mean you can not develop throat cancer.”
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