%0 Journal Article
%T A pilot study of the clinical evidence for the methodology for prevention of oral mucositis during cancer chemotherapy by measuring salivary excretion of 5-fluorouracil
%J -
%D 2018
%R https://doi.org/10.1038/s41405-018-0008-2
%X Objective to re-examine measures to prevent oral mucositis caused by drugs in head and neck cancer patients during cancer treatment by measuring salivary excretion of 5-fluorouracil. Saliva, blood, and urine were simultaneously collected from oral cancer patients and breast cancer patient at the point in time of before, during, and after the administration of 5-FU, then the 5-FU levels of the samples were quantitatively analysed using LC-MS/MS. In all patients, the 5-FU levels in saliva and serum peaked at 30£¿min to 3£¿h after the start of 5-FU treatment, and high levels were maintained throughout the administration of the drug. With regard to urinary 5-FU levels, they remained high from 3 to 120£¿h after the start of 5-FU treatment. After the completion of 5-FU treatment, even though it not appeared in the patients¡¯ serum and urine promptly, 5-FU was detected in saliva at 12£¿h after the completion of 5-FU treatment in one oral cancer patient and at 48£¿h after the completion of 5-FU treatment in the breast cancer patient. It was suggested that the level of hydration after the completion of chemotherapy may be involved in the differences in 5-FU excretion
%U https://www.nature.com/articles/s41405-018-0008-2