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【社会人文】口交可导致咽喉癌
Oral sex 'linked to throat cancer'
Oral sex can raise the risk of throat cancer by transmitting a virus linked to the disease, scientists have claimed.
A new study shows that human papillomavirus (HPV) spread by the sex act can trigger a specific type of throat cancer in both men and women.
HPV infection through sexual intercourse is normally associated with cervical cancer. But researchers found that the virus is also a powerful risk factor for oropharyngeal cancer, which affects the tonsils, tongue and throat.
This was especially true for people who had experienced oral sex with multiple partners. The study showed that having a history of HPV infection increased the chances of developing the cancer 32 times.
Previously smoking and drinking alcohol were considered the strongest risk factors for oropharyngeal cancer, which affects the tonsils, back of the tongue, and throat. But neither are any where near as hazardous as HPV infection, according to the new findings. Smoking raised the risk of throat cancer three times, and drinking 2.5.
Researcher Dr Gypsyamber D'Souza (correct), from the Johns Hopkins Bloomberg School of Public Health in Baltimore, US, said: "It is important for health care providers to know that people without the traditional risk factors of tobacco and alcohol use can nevertheless be at risk of oropharyngeal cancer."
Oral sex - performed on both men and women - is the chief way HPV enters the mouth, said the scientists.
Study participants who had more than six oral sex partners in their lifetime and evidence of HPV infection were 8.6 times more likely to develop the cancer than those who had never engaged in oral sex.
The possibility of mouth-to-mouth transmission of the virus, for instance by kissing, could not be ruled out, said the researchers. HPV can be passed on by skin contact and may be found in the genital tract, the saliva, urine and semen.
The findings, published in the New England Journal of Medicine, showed that the HPV-16 strain of the virus was present in the tumours of 72% of cancer patients taking part in the study. People whose immune systems had produced detectable antibodies against HPV molecules were 58 times more likely to have oropharyngeal cancer.
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Oral sex 'linked to throat cancer'
口交与咽喉癌有关
Oral sex can raise the risk of throat cancer by transmitting a virus linked to the disease, scientists have claimed.
口交可以通过传播一种与咽喉癌有关的病毒，增高其发病风险。
A new study shows that human papillomavirus (HPV) spread by the sex act can trigger a specific type of throat cancer in both men and women.
新研究表明，性行为中传播的人乳头状瘤病毒（HPV）可能诱发某种咽喉癌，男女均不例外。
HPV infection through sexual intercourse is normally associated with cervical cancer. But researchers found that the virus is also a powerful risk factor for oropharyngeal cancer, which affects the tonsils, tongue and throat.
性行为所造成的HPV感染一般与子宫颈癌有关。但研究人员发现，HPV病毒也是口咽癌的一个相当重要的危险因子，口咽癌累及扁桃体、舌及咽喉。
This was especially true for people who had experienced oral sex with multiple partners. The study showed that having a history of HPV infection increased the chances of developing the cancer 32 times.
对于那些与多个性伙伴有过口交行为的人来说，更是如此。研究显示，有HPV感染史者，口咽癌的发病几率增加32倍。
Previously smoking and drinking alcohol were considered the strongest risk factors for oropharyngeal cancer, which affects the tonsils, back of the tongue, and throat. But neither are any where near as hazardous as HPV infection, according to the new findings. Smoking raised the risk of throat cancer three times, and drinking 2.5.
口咽癌累及扁桃体、舌后部及咽喉。以往人们认为吸烟及饮酒是口咽癌的首要危险因子，但新研究表明，它们根本不能和HPV感染的危害相比。吸烟使咽喉癌风险增加3倍，饮酒使之增加2倍。
Researcher Dr Gypsyamber D'Souza (correct), from the Johns Hopkins Bloomberg School of Public Health in Baltimore, US, said: "It is important for health care providers to know that people without the traditional risk factors of tobacco and alcohol use can nevertheless be at risk of oropharyngeal cancer."
来自Baltimore Johns Hopkins Bloomberg公共卫生学校的研究者Gypsyamber D'Souza博士称，即使没有传统危险因子如吸烟及饮酒，也可以同样有发生口咽癌的风险，要让保健人员知道这一点很重要。
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作者:admin@医学,生命科学 2011-06-10 05:11
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