嗅探犬可检测早期肺癌-凯发k8官网

嗅探犬可检测早期肺癌
文章来源:未知 文章作者:enread 发布时间:2011-08-20 02:53 字体: [ ] 
(单词翻译:双击或拖选)

sniffer dogs could be used for the early detection of lung cancer, according to new research published in the european respiratory journal. the study, carried out by researchers from schillerhoehe hospital in germany, is the first to find that sniffer dogs can reliably detect lung cancer.

lung cancer is the second most frequent form of cancer in men and women across europe with over 340,000 deaths per year. it is also the most common cause of death from cancer worldwide.

the disease is not strongly associated with any symptoms and early detection is often by chance. current methods of detection are unreliable and scientists have been working on using 1(呼气) breath 2 from patients for future screening tests.

this method relies on identifying 3 organic compounds (vocs挥发性有机污染物) that are linked to the presence of cancer. although many different 4 applications have been developed, this method is still difficult to apply in a clinical setting as patients aren't allowed to smoke or eat before the test, sample analysis can take a long time and there is also a high risk of interference. because of these reasons, no lung cancer-specific vocs have yet been identified.

this new study aimed to assess whether sniffer dogs could be used to identify a voc in the breath of patients. the researchers worked with 220 volunteers, including lung cancer patients, 5 obstructive pulmonary disease (copd) patients and healthy volunteers. they used dogs that had been specifically trained.

the researchers carried out a number of tests to see if the dogs were able to reliably identify lung cancer compared with healthy volunteers, volunteers with copd and whether the results were still found with the presence of tobacco.

the dogs successfully identified 71 samples with lung cancer out of a possible 100. they also correctly detected 372 samples that did not have lung cancer out of a possible 400.

the dogs could also detect lung cancer independently from copd and tobacco smoke. these results confirm the presence of a stable marker for lung cancer that is independent of copd and also 6 in the presence of tobacco smoke, food odours(气味,声誉) and drugs.

author of the study, thorsten walles from schillerhoehe hospital, said: "in the breath of patients with lung cancer, there are likely to be different chemicals to normal breath samples and the dogs' keen sense of smell can detect this difference at an early stage of the disease. our results confirm the presence of a stable marker for lung cancer. this is a big step forward in the 7 of lung cancer, but we still need to 8 identify the compounds observed in the exhaled breath of patients. it is unfortunate that dogs cannot communicate the biochemistry of the 9 of cancer!"



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1 8e9b6351819daaa316dd7ab045d3176d     
v.呼出,发散出( exhale的过去式和过去分词 );吐出(肺中的空气、烟等),呼气
参考例句:
  • he sat back and exhaled deeply. 他仰坐着深深地呼气。
  • he stamped his feet and exhaled a long, white breath. 跺了跺脚,他吐了口长气,很长很白。 来自汉英文学 - 骆驼祥子
2 91fc365099a256001af897127174fcce     
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
参考例句:
  • astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • the traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
3 tlqzq     
adj.反复无常的,挥发性的,稍纵即逝的,脾气火爆的;n.挥发性物质
参考例句:
  • with the markets being so volatile,investments are at great risk.由于市场那么变化不定,投资冒着很大的风险。
  • his character was weak and volatile.他这个人意志薄弱,喜怒无常。
4 gqiwy     
adj.技术的;工艺的
参考例句:
  • a successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐。
  • today,the pace of life is increasing with technological advancements.当今, 随着科技进步,生活节奏不断增快。
5 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。
6 tuxzmd     
adj.可发觉的;可查明的
参考例句:
  • the noise is barely detectable by the human ear.人的耳朵几乎是察觉不到这种噪音的。
  • the inflection point at this ph is barely detectable.在此ph值下,拐点不易发现。
7 gvpxc     
n.诊断,诊断结果,调查分析,判断
参考例句:
  • his symptoms gave no obvious pointer to a possible diagnosis.他的症状无法作出明确的诊断。
  • the engineer made a complete diagnosis of the bridge's collapse.工程师对桥的倒塌做一次彻底的调查分析。
8 zlwzub     
adv.恰好,正好,精确地,细致地
参考例句:
  • it's precisely that sort of slick sales-talk that i mistrust.我不相信的正是那种油腔滑调的推销宣传。
  • the man adjusted very precisely.那个人调得很准。
9 wthzs     
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉
参考例句:
  • the air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
  • the flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。
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