男人越风流，前列腺癌危险越高
路透社纽约健康消息 美国伊利诺斯州大学的研究人员发现，男人一生中异性性伴侣越多，患前列腺癌的机率就越大。该发现支持了前列腺的传染病发机理。
研究人员对753位年龄介于40-64岁的前列腺癌患者及同年龄组的703位健康人士进行了对比调查。结果发现，与只有一个性伴侣的男性相比，在十多岁、二十多岁、四十多岁及五十到六十四岁各个年龄段有两个或两个以上异性伴侣的男性患前列腺癌的危险性较高。一生中有三十个或更多性伴侣的男性患恶性前列腺癌的危险性更大。
研究结果支持病源学中前列腺癌与有过与患有性传染病的人交合的经历有关，但不能证实有多个性伴侣就是引发前列腺癌的真正原因，要解释性伴侣的数目与前列腺癌之间的关系还需要更进一步的研究。
以往的研究已经发现了一些性病特别是淋病和前列腺癌有联系，有些研究还将前列腺癌与人类乳头状病毒联系起来，这种病毒是导致生殖器疣及女性子宫颈癌的主要原因。
, 百拇医药
来源：《美国流行病学杂志》2001;152:1152-1158
Number of Sex Partners Linked to Prostate Cancer
NEW YORK (Reuters Health) - Men‘s risk of prostate cancer may increase in tandem with the number of female sex partners they have had in their lifetime, according to the results of a new study.
This finding supports the theory that prostate cancer may be triggered by an infectious agent, because men with more sex partners tend to have an increased risk of exposure to infection, according to Karin A. Rosenblatt of the University of Illinois at Urbana-Champaign and her colleagues. The findings are published in the American Journal of Epidemiology.
, 百拇医药
Past studies have found links between certain sexually transmitted diseases--particularly gonorrhea--and prostate cancer. Some studies have also linked prostate cancer to human papillomavirus, the cause of genital warts and a major contributor to cervical cancer in women. However, other studies have found no link between sexually transmitted diseases and prostate cancer.
In the new study, the researchers looked at 753 men with prostate cancer and compared them with 703 men the same age who were cancer-free. All were between the ages of 40 and 64.
, 百拇医药
Men who reported having gonorrhea had a slightly increased risk of prostate cancer, although other types of sexually transmitted diseases did not appear to increase risk significantly.
Having two or more female sex partners during their teens, 20s, 40s and between age 50 to 64 increased men‘s risk of prostate cancer, compared with men who had sex with only one woman during each of these time periods, the investigators found. Also, men who had 30 or more sexual partners in their lifetime had an increased risk of more aggressive prostate cancer.
, 百拇医药
There was no link between the number of male partners a man had and cancer, and the frequency of sex did not affect cancer risk.
In contradiction of previous research, the study found that having sex for the first time at an earlier age was not associated with an increased risk of prostate cancer.
However, the study could not prove that a higher number of sex partners was the actual cause of prostate cancer. And more research is needed confirm the results--and find a reason why they might be true.
, 百拇医药
``In summary, our results support a role for sexual behavior and associated exposure to infectious agents in the etiology of prostate cancer,‘‘ Rosenblatt and colleagues conclude. ``Additional research will be required to identify specific exposures that may explain the observed link between the number of sexual partners and prostate cancer risk.‘‘
SOURCE: American Journal of Epidemiology 2001;152:1152-1158., 百拇医药
研究人员对753位年龄介于40-64岁的前列腺癌患者及同年龄组的703位健康人士进行了对比调查。结果发现，与只有一个性伴侣的男性相比，在十多岁、二十多岁、四十多岁及五十到六十四岁各个年龄段有两个或两个以上异性伴侣的男性患前列腺癌的危险性较高。一生中有三十个或更多性伴侣的男性患恶性前列腺癌的危险性更大。
研究结果支持病源学中前列腺癌与有过与患有性传染病的人交合的经历有关，但不能证实有多个性伴侣就是引发前列腺癌的真正原因，要解释性伴侣的数目与前列腺癌之间的关系还需要更进一步的研究。
以往的研究已经发现了一些性病特别是淋病和前列腺癌有联系，有些研究还将前列腺癌与人类乳头状病毒联系起来，这种病毒是导致生殖器疣及女性子宫颈癌的主要原因。
, 百拇医药
来源：《美国流行病学杂志》2001;152:1152-1158
Number of Sex Partners Linked to Prostate Cancer
NEW YORK (Reuters Health) - Men‘s risk of prostate cancer may increase in tandem with the number of female sex partners they have had in their lifetime, according to the results of a new study.
This finding supports the theory that prostate cancer may be triggered by an infectious agent, because men with more sex partners tend to have an increased risk of exposure to infection, according to Karin A. Rosenblatt of the University of Illinois at Urbana-Champaign and her colleagues. The findings are published in the American Journal of Epidemiology.
, 百拇医药
Past studies have found links between certain sexually transmitted diseases--particularly gonorrhea--and prostate cancer. Some studies have also linked prostate cancer to human papillomavirus, the cause of genital warts and a major contributor to cervical cancer in women. However, other studies have found no link between sexually transmitted diseases and prostate cancer.
In the new study, the researchers looked at 753 men with prostate cancer and compared them with 703 men the same age who were cancer-free. All were between the ages of 40 and 64.
, 百拇医药
Men who reported having gonorrhea had a slightly increased risk of prostate cancer, although other types of sexually transmitted diseases did not appear to increase risk significantly.
Having two or more female sex partners during their teens, 20s, 40s and between age 50 to 64 increased men‘s risk of prostate cancer, compared with men who had sex with only one woman during each of these time periods, the investigators found. Also, men who had 30 or more sexual partners in their lifetime had an increased risk of more aggressive prostate cancer.
, 百拇医药
There was no link between the number of male partners a man had and cancer, and the frequency of sex did not affect cancer risk.
In contradiction of previous research, the study found that having sex for the first time at an earlier age was not associated with an increased risk of prostate cancer.
However, the study could not prove that a higher number of sex partners was the actual cause of prostate cancer. And more research is needed confirm the results--and find a reason why they might be true.
, 百拇医药
``In summary, our results support a role for sexual behavior and associated exposure to infectious agents in the etiology of prostate cancer,‘‘ Rosenblatt and colleagues conclude. ``Additional research will be required to identify specific exposures that may explain the observed link between the number of sexual partners and prostate cancer risk.‘‘
SOURCE: American Journal of Epidemiology 2001;152:1152-1158., 百拇医药