the dogs can smell the cancer

a training of seven weeks can turn to a group of dogs of different races and ages a weapon against the cancer. A new study, published in the last edition of the ?Medical British Journal?, demonstrates that the canine ones are able to smell the cancer of vejiga in tinkles it of a person affected by this disease. The possibility that the dogs can smell the cancer raised for the first time only five years ago in a brief letter published in ?The Lancet?. It was a surprising case: a woman of 44 years appeared in a clinic of London with a minimum spot in the arm to which any importance had not concecido. Its dog, nevertheless, smelled it constantly and decided to go to the doctor. They diagnosed cancer to him of skin in its initial phase of development. In September of 2001 the same publication gathered other two similar cases. First it corresponded to a woman with a spot in the leg whose dog persecuted and even it had tried to bite. The doctors diagnosed melanoma to him. The second case was of a man of 66 years that two years ago it had! farmer who insisted on olisquear small eccema of the thigh. The diagnosis was carcinoma of basal cells.

?The dogs could smell the injuries through the clothes and they did not show more interest in them once they were extirpated?, they affirmed the investigators. The third chapter of history is the new investigation that publishes the ?BMJ?, made in order to happen of the anecdote to science. Can a dog carefully trained to smell the cancer? According to the study, yes. During almost two months, six canine of different races and ages they were trained so that they could distinguish a sample of tinkles of a person with cancer of vejiga among other six coming from a person heals or with nonurológica a tumorlike disease. The initial perspective of success were of 14%, that is to say, of a success by each seven attempts. ?Taken like an only group, the dogs selected the sample of tinkles of patients with cancer d! and vejiga in 22 of 54 occasions?, affirms the authors of the study, diri gido by Carolyn M. Willis, of the Department of Dermatology of Amershan (United Kingdom). ?This supposes an average rate of success of 41%?, add. In the investigation samples were used of tinkles of 23 men, of ages between 48 and 90 years, and of 13 women of he himself group of age, all with a diagnosis of new or recurrent cancer of vejiga. The investigators used 27 of them for the training of the animals and nine rest for the experiments. As reference 108 were used samples of tinkle coming from healthy people (54 men and other so many women) or with any disease except any type of urológico carcinoma. In agreement with the investigation, the dogs trained with liquid samples of tinkle significantly better did that those than smelled dry samples, which reinforces the hypothesis that present the volatile organic molecules of the tumor in the sample could be the cause of which the dogs can diferenc! to iar them. ?Our study offers the first experimental evidence that sample that the dogs can detect a cancer by means of the sense of smell with more success than the one than could be hoped by chance?, they conclude the investigators, who request new investigations in a field whose whose actually daily clinical utility at the moment is ignored. ?The most fascinating finding was the patient control [without diagnosis of cancer of vejiga] used during the phase of training whose sample was identified of constant form by the dogs?, it affirms to T.J. Cole, professor of medical statistic of the Institute of Infantile Health of London, in a commentary on the study, that describes like ?simple and elegant?. ?In spite of the fact that the patient had negative results in a citoscopia and a ultrasonografía, the specialist sufficiently was impressed with the performance of the dogs that tested new to the patient and found a kidney carcinoma?, it concludes Cole.

Source: The World

Otras secciones interesantes...
Diseases - Training - Natural feeding - Balanced feeding - Reproductive System - Poisonings - Heart disorders - Nervous disorders - Alternative diets - Parasites - Hormonal disorders - Biological weapons - Etología - Monodrug and doses - Specialties -