染发剂会导致乳腺癌

Saturday March 7, 2018 (jkzx.com) — 长期以来，人们怀疑染发剂是致癌剂。芬兰进行的一项新研究证实，接触染发剂会增加患乳腺癌的风险。

赫尔辛基大学和芬兰癌症登记处的Sanna Heikkinen博士检查了8,000名患有乳腺癌的芬兰妇女和20,000名没有患病的对照者的数据，以确定接触染发剂与乳腺癌风险之间是否存在关联。

Heikkinen发现染发剂确实与乳腺癌风险有关。具体地说，她发现经常染发的女性患乳腺癌的可能性要高出23％。

这不是第一项将染发剂暴露与乳腺癌风险升高联系起来的研究。以前的研究已经发现，定期染发的女性患乳腺癌的风险较高，包括脑癌，膀胱癌和白血病。

英国医生过去已经警告过家用染发剂和染发萨龙用的染料的危害。

2000年，南加州大学国际癌症杂志的研究人员报告称，每月染发的女性患染发的女性患乳腺癌的可能性是其他女性的两倍。

暴露时间越长，风险越高。因此，每天使用染发剂的理发师患乳腺癌和其他癌症的风险要高得多。

欧盟委员会审查了染发剂的安全性，并决定撤销对欧洲染发产品的支持。委员会表示，没有足够的证据证明染发剂的安全性。一种名为对苯二胺或PPD的化学物质，特别是在常用的染发剂中发现，引起了委员会的注意。

Hair dyes linked to breast cancer

Hair dyes have been long suspected to be a cancer causing agent.  A new study conducted in Finland confirms the danger that exposure to hair dyes can increase risk of breast cancer.

Dr. Sanna Heikkinen of the University of Helsinki and the Finnish Cancer Registry, examined data from 8,000 Finnish women with breast cancer and 20,000 controls without the disease to see if there is an association between exposure to hair dyes and risk of breast cancer。

Heikkinen found hair dyes are indeed linked to breast cancer risk.  To be exact, she found that women who dyed their hair regularly were 23 percent more likely to develop breast cancer.

This is not the first study that linked exposure to hair dyes to an elevated risk of breast cancer.  Previous studies have already found women who dye their hair on a regular basis are at higher risk of many cancers including brain cancer, bladder cancer and leukemia in addition to breast cancer.

British doctors have already warned in the past about the hazards of both home hair dye kits and dyes used at hair salons.

In 2000, researchers from the University of Southern California in the International Journal of Cancer reported that women who dye their hair monthly were twice as likely as others who did not dye hair to get bladder cancer.

The longer the exposure, the higher the risk is.  For that reason, hairdressers who use hair dyes daily are at much greater risk of breast cancer and other cancers.

The European Commission reviewed the safety of hair dyes and has decided to withdraw support for hair coloring products in Europe.  The Commission stated that no sufficient evidence proves the safety of hair dyes.  One chemical called para-phenylenediamine or PPD particularly found in common hair dyes got the Commission attention.