包皮环割术可能免患前列腺癌
文章来源:未知 文章作者:enread 发布时间:2012-03-13 03:21 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

A new analysis led by researchers at Fred Hutchinson Cancer Research Center has found that circumcision(包皮环割术) before a male's first sexual intercourse1 may help protect against prostate cancer. Published early online in Cancer, a peer-reviewed journal of the American Cancer Society, the study suggests that circumcision can hinder infection and inflammation that may lead to this malignancy(恶性肿瘤) . Infections are known to cause cancer, and research suggests that sexually transmitted infections may contribute to the development of prostate cancer. Also, certain sexually transmitted infections can be prevented by circumcision. Therefore, it stands to reason that circumcision should protect against the development of some cases of prostate cancer. This is what lead author Jonathan L. Wright, MD, an affiliate2 investigator3 in the Hutchinson Center's Public Health Sciences Division, and his colleagues set out to test.

For their study, the investigators4 analyzed5 information from 3,399 men (1,754 with prostate cancer and 1,645 without). Men who had been circumcised before their first sexual intercourse were 15 percent less likely to develop prostate cancer than uncircumcised men. This reduced risk applied6 for both less aggressive and more aggressive cancers. (Specifically, men circumcised before their first sexual intercourse had a 12 percent reduced risk for developing less aggressive prostate cancer and an 18 percent reduced risk for developing more aggressive prostate cancer.)

Sexually transmitted infections may lead to prostate cancer by causing chronic7 inflammation that creates a hospitable8 environment for cancer cells. Other mechanisms10 may also be involved. Circumcision may protect against sexually transmitted infections, and therefore prostate cancer, by toughening the inner foreskin and by getting rid of the moist(潮湿的) space under the foreskin that may help pathogens survive.

"These data are in line with an infectious/inflammatory pathway which may be involved in the risk of prostate cancer in some men," said Dr. Wright, who is also an assistant professor of urology at the University of Washington School of Medicine. "Although observational only, these data suggest a biologically plausible11(貌似可信的) mechanism9 through which circumcision may decrease the risk of prostate cancer. Future research of this relationship is warranted," he added.



点击收听单词发音收听单词发音  

1 intercourse NbMzU     
n.性交;交流,交往,交际
参考例句:
  • The magazine becomes a cultural medium of intercourse between the two peoples.该杂志成为两民族间文化交流的媒介。
  • There was close intercourse between them.他们过往很密。
2 affiliate TVBzj     
vt.使隶(附)属于;n.附属机构,分公司
参考例句:
  • Our New York company has an affiliate in Los Angeles.我们的纽约公司在洛杉矶有一个下属企业。
  • What is the difference between affiliate and regular membership?固定会员和附属会员之间的区别是什么?
3 investigator zRQzo     
n.研究者,调查者,审查者
参考例句:
  • He was a special investigator for the FBI.他是联邦调查局的特别调查员。
  • The investigator was able to deduce the crime and find the criminal.调查者能够推出犯罪过程并锁定罪犯。
4 investigators e970f9140785518a87fc81641b7c89f7     
n.调查者,审查者( investigator的名词复数 )
参考例句:
  • This memo could be the smoking gun that investigators have been looking for. 这份备忘录可能是调查人员一直在寻找的证据。
  • The team consisted of six investigators and two secretaries. 这个团队由六个调查人员和两个秘书组成。 来自《简明英汉词典》
5 analyzed 483f1acae53789fbee273a644fdcda80     
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
参考例句:
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
6 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
7 chronic BO9zl     
adj.(疾病)长期未愈的,慢性的;极坏的
参考例句:
  • Famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
  • Chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。
8 hospitable CcHxA     
adj.好客的;宽容的;有利的,适宜的
参考例句:
  • The man is very hospitable.He keeps open house for his friends and fellow-workers.那人十分好客,无论是他的朋友还是同事,他都盛情接待。
  • The locals are hospitable and welcoming.当地人热情好客。
9 mechanism zCWxr     
n.机械装置;机构,结构
参考例句:
  • The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
  • The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。
10 mechanisms d0db71d70348ef1c49f05f59097917b8     
n.机械( mechanism的名词复数 );机械装置;[生物学] 机制;机械作用
参考例句:
  • The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
  • He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》
11 plausible hBCyy     
adj.似真实的,似乎有理的,似乎可信的
参考例句:
  • His story sounded plausible.他说的那番话似乎是真实的。
  • Her story sounded perfectly plausible.她的说辞听起来言之有理。
TAG标签: prostate cancer sexual
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:点击我更换图片