Dogs “Smell” Bladder Cancer
Man’s best friend might be able to detect bladder cancer, says a new British study. With their exceptionally sensitive noses, dogs can smell odors from malignant tumors in urine samples.
Tumors are thought to produce volatile organic compounds with distinctive odors.
Six dogs of varying breeds and ages were trained over seven months to discriminate between urine from patients with bladder cancer and that from a control group. Each dog was then given samples of urine from six control group participants and one bladder cancer patient.
The dogs identified their chosen sample by lying next to it in nine separate tests. The dogs detected the bladder cancer samples 22 out of 54 times, 27-percent more than would be expected by chance alone.
Ivanhoe newswire, Reported September 27, 2004