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Age-related deafness, and hearing loss caused by loud noise, may be reduced by the antioxidants in red wine, green tea and aspirin1, it was claimed yesterday. Destructive chemical agents called oxygen-free radicals2, produced by normal cellular3 processes and in response to loud noise and exposure to powerful antibiotics5, can damage the hairs.
But antioxidants such as resveratrol, found in red wine and green tea, and salicylate, the active ingredient in aspirin, should be able to neutralise them. To test whether this was the case, scientists in the United States used salicylate to prevent damage to hair cells in patients' ears caused by the strong antibiotic4, gentamicin. Hearing loss affected6 just 3 per cent of patients who were given gentamicin plus aspirin for acute ear infections, compared with 13 per cent treated with the antibiotic plus a non-active placebo7. 中文翻译:
人们都知道,阿司匹林、红酒和绿色蔬菜对人的心脏有好处。而美国最新一项研究结果显示,它们对人们的听力健康也大有裨益,能推迟因年龄引起的耳聋,还能降低因抗生素和噪音引起的听力下降。 美国密歇根医疗学院大学的约钦·沙赫特和其同事发现,水杨酸盐(阿司匹林中含有的重要的抗氧化成分)能够保护那些使用抗生素类药物的患者的听觉毛细胞。 研究显示,那些同时使用庆大霉素和阿司匹林的人中,只有3%的人出现了听力下降的症状;而那些同时使用庆大霉素和安慰剂的人中,则有13%的人出现了听力下降的症状。 报道说,抗氧化剂是一种能够有效阻止自由基破坏作用的化学物质。在红酒、绿色蔬菜、苹果、绿茶和其他一些食物和饮料中,也能发现抗氧化剂的存在。尽管,目前还没有直接的证据说明,从日常饮食中摄入抗氧化剂(如饮用适量的红酒等),能够预防人类出现的听力下降的症状,但在老鼠身上进行的相关试验则为此提供了间接证据。 报道说,此项研究的具体结果将发表在5月13日出版的英国科学周刊《新科学家》杂志上。 点击收听单词发音
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