A dog can accurately detect the early presence of lung cancer by sniffing patients’ breath, doctors in Germany say. While researchers have known for some time that dogs can sniff out the telltale signs of other forms of cancer, this is the first study that proves dogs can reliably smell this particular kind。
This is a breakthrough for lung cancer researchers who have been trying to figure out if there are specific volatile organic compounds associated with the presence of the disease. The dog study suggests that there are。
Researchers at Schillerhoehe Hospital in Germany worked with specially trained dogs who were asked to smell the breath of 220 volunteers. The group included healthy patients, as well as people with lung cancer and chronic obstructive pulmonary disease。
狗能准确嗅闻出肺癌
The dogs correctly identified 71 positive lung cancer samples out of a possible 100, the researchers write in the European Respiratory Journal. They also correctly identified 372 non-cancerous samples out of a possible 400.
What’s interesting about this is that the dogs were able to detect cancer even in the presence of other factors, like tobacco smoke and COPD. Current lab tests for lung cancer can't do this。
This suggests that there is indeed a VOC associated directly with lung cancer, which can be detected — at least by a dog — even in the presence of other compounds。
据美国《大众科学》8月19日报道,德国医生说,狗通过嗅闻病人的气息能准确地探查到早期肺癌的迹象。虽然研究人员已经知道狗可以闻出其他种类癌症的蛛丝马迹,而这却是首个证明狗能准确嗅闻出肺癌的研究。
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