登录  
 加关注
   显示下一条  |  关闭
温馨提示!由于新浪微博认证机制调整,您的新浪微博帐号绑定已过期,请重新绑定!立即重新绑定新浪微博》  |  关闭

毕无烟

2016年世界无烟日:为平装做好准备

 
 
 

日志

 
 

童年时期处于二手烟环境可增加患肺癌危险   

2009-12-10 16:04:32|  分类: 烟草危害 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |

来源:英文阅读网http://www.enread.com/science/79258.html

Children exposed to secondhand cigarette smoke have an increased risk of developing lung cancer in adulthood成年, even if they never smoked. Results of this study are published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research, as part of a special tobacco focus in the December issue.

This year alone, more than 219,000 Americans will be diagnosed with lung cancer; more than 159,000 will die from it and some of those may be people who have never smoked. Studies to date have shown that exposure to secondhand smoke in adulthood has detrimental有害的 health effects, but data are limited on one's risk of developing lung cancer when exposed as a child.

What makes this study different from previous research is that it was conducted in two independent cohorts军团,同龄类 and included a molecular analysis of gene variants of innate immunity先天免疫 — the mannose甘露糖 binding lection-2 gene, or MBL2 gene. The MBL2 gene is known to affect susceptibility感受性,感情 to respiratory diseases呼吸系统疾病.

Using the ongoing National Cancer Institute-Maryland Lung Cancer study (624 cases; 348 controls), Curtis C. Harris, M.D., chief of the Laboratory of Human Carcinogenesis at NCI, and colleagues collected information on secondhand smoke history among men and women. They used DNA for genotyping the MBL2 gene. Then, to compare, Harris, Ping Yang, M.D., Ph.D., professor of epidemiology at the Mayo Clinic in Rochester, Minn., and colleagues used results from a Mayo Clinic study (461 never smokers; 172 cases; 289 controls).

Harris and colleagues found an association between childhood exposure to secondhand tobacco smoke and increased risk of lung cancer in adulthood. Furthermore, MBL2 activity was associated with an even more increased risk among those who were exposed to secondhand smoke in childhood.

Based on the results of this study, Harris said "children should not be exposed to secondhand tobacco smoke due to the long-term health implications含义,启示 they can face in adulthood." He added that these results warrant further investigation in a larger study population.

  评论这张
 
阅读(217)| 评论(0)

历史上的今天

评论

<#--最新日志,群博日志--> <#--推荐日志--> <#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇,下一篇--> <#-- 热度 --> <#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->
 
 
 
 
 
 
 
 
 
 
 
 
 
 

页脚

网易公司版权所有 ©1997-2018