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Smelling for first time results from knowing abnormalities in congenital loss of smell

New discoveries about the biochemical basis of the majority of cases of the congenital inability to smell any odor, no matter how strong, have enabled their discoverer, Dr. Robert I. Henkin, director of The Taste and Smell Clinic in Washington, DC, to treat such patients, enabling them to smell something for the first time in their lives.

These patients respond with amazement, Dr. Henkin told fellow scientists gathered at Experimental Biology 2007 meeting in Washington. Until the treatment began to take effect, they had never experienced the olfactory world that surrounds us all, and it is with excitement that they quickly begin to learn what different things smell like and to relate those odors to objects they have known all their lives, says Dr. Henkin.

Dr. Henkins Experimental Biology presentation, on April 30, is part of the scientific program of The American Physiological Society. His study is the first to characterize the biochemical abnormalities in these patients and the first to successfully treat patients using this new understanding.

In the United States alone, there are about 400,000 people who have never smelled anything in their lives. (This does not include those who lose their once normal smell function because of illness or accident.) A relatively small percentage - 12 percent - of individuals with congenital smell loss have multiple anatomical abnormalities of the brain and other organs. The vast majority - 88 percent - of individuals with congenital smell loss, however, do not have any such obvious organ abnormalities and their olfactory nerves and the brain regions that process olfactory information are intact.

Why, then, have they never been able to smell?

In order to answer that question, Dr. Henkin examined these seemingly normal patients nasal mucus, the fluid that bathes the olfactory nerve receptors. From earlier studies in his laboratory, Dr. Henkin knew that the nasal mucus contains
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Contact: Sylvia Wrobel
ebpress@bellsouth.net
770-270-0989
Federation of American Societies for Experimental Biology
30-Apr-2007


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