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Study Shows No Link Between Cell Phones and Rare Tumor

手机辐射和脑瘤有关系吗?

http://www.100md.com   2005-10-19
     HEALTH REPORT - Study Shows No Link Between Cell Phones and Rare Tumor

    By Cynthia Kirk

    Broadcast: Wednesday, September 07, 2005

    I'm Barbara Klein with the VOA Special English Health Report.

    New research has found no link between the use of cellular telephones and tumors in the head. The study is one of the largest ever done on the possible links between brain cancer and cell phone radiation.

    British researchers looked for a possible link between cell phone use and a rare tumor called acoustic neuroma. Acoustic neuromas develop on the nerve linking the brain and the inner ear.

    Researchers also investigated links between cell phones and other kinds of cancers. But they say acoustic neuromas would be the most likely because they grow close to where people hold cell phones.

    Scientists at the Institute of Cancer Research in London gathered information from studies done in Britain, Denmark, Finland, Norway and Sweden. Cell phones have been widely used in those countries for more than ten years.

    The researchers questioned more than four thousand people. Six hundred seventy-eight of them had developed acoustic neuromas. The researchers then compared their cell phone use over a ten-year period. The results were published in the British Journal of Cancer.

    Anthony Swerdlow led the study. He said the results suggest there is no major risk of acoustic neuromas in the first ten years of using cell phones. But he said the technology is still too new to know about long-term effects. He also warned that young children who use cell phones could be at higher risk. The results of a recent Swedish study also found no link between cell phone use and brain tumors. In two thousand, a British study found no serious health effects from the use of cell phones. However, it warned that children should use them only in emergencies.

    Some investigations have found a cancer risk. A study by the World Health Organization last year found that people who have used cell phones for at least ten years may be at greater risk for a rare brain tumor.

    Other studies have suggested radiation from cellular phones can cause heating in the brain, headaches and stomach problems. Some scientists suggest that the increased number of cases of brain cancer is likely linked to the use of cell phones.

    Almost two thousand million people use cell phones around the world.

    This VOA Special English Health Report was written by Cynthia Kirk. Our reports are online at www.unsv.com. I'm Barbara Klein.

    手机辐射和脑瘤有关系吗?

    最近, 英国的研究人员对手机辐射和脑瘤是否有关系做了一次大规模的调查研究。他们调查研究了手机辐射和听觉神经瘤及癌症之间的关系,发现最有可能的就是听觉神经瘤,听觉神经连接着大脑和内耳,且听觉神经瘤所长的部位与用手机的部位最接近。

    手机在英国、丹麦、芬兰、挪威和瑞典等国家已普及了十几年,伦敦癌症研究所的科学家调查了4000多人,发现其中有678人患上听觉神经瘤,他们用手机都有10年以上,《英国癌症杂志》发表了这份调查报告。安东尼·史沃德罗先生领导了这项调查研究,他说:"用10年手机不大可能患上听觉神经瘤,但手机毕竟是新科技产品,尚无法确切地知道长期用手机会有什么结果,儿童用手机风险可能会更高些。"

    最近,一份瑞典的研究调查报告则表明用手机和脑瘤无关。2000年,一份英国的研究调查报告说用手机对健康没有大问题,但这份报告还是告诫儿童在非紧急情况下不要用手机。有些研究调查则表明用手机有患脑癌的危险,去年世界卫生组织的一份研究报告表明用手机长达10年以上者是患脑瘤的高危人群。

    其它的研究还表明来自手机的辐射可以引起脑热、头痛和胃病,有些科学家认为患脑癌人数的上升可能和用手机有关系。

    现在,全世界有近20亿人用手机。

    
编译:郑明

    2005年10月


    编译自美国之音2005年9月7日特别英语节目《健康报道》

    

 
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