“Our primary goal in this study was to test the hypothesis that radiation therapy is associated with long-term alterations in patients’ senses of smell and taste.”Īlign image left align image center align image right Yanina Pepino, a professor of food science and human nutrition at the U. “While most studies suggest that patients’ ability to taste recovers within a few months of treatment, patients report that they continue to experience taste dysfunction for years after treatment ends,” said M. team said this diminished taste sensitivity suggested that the taste buds on the front two-thirds of the cancer survivors’ tongues or a branch of the chorda tympani facial nerve, which carries signals from the tip of the tongue to the brain, may have been damaged during radiation therapy. In a paper published in the journal Chemical Senses, the U. In a study of taste and smell dysfunction with 40 cancer survivors, scientists at the University of Illinois Urbana-Champaign found that the tips of these individuals’ tongues were significantly less sensitive to bitter, salty or sweet tastes than peers in the control group who had never been diagnosed with cancer. Most survivors of squamous cell head and neck cancers report that their sense of taste is dulled, changed or lost during radiation treatment, causing them to lose interest in eating and diminishing their quality of life.
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