Clinical Chemistry
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Clinical Chemistry 38: 752-755, 1992;
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Clinical Chemistry, Vol 38, 752-755, Copyright © 1992 by American Association for Clinical Chemistry

Assay of urinary free fucose by fluorescence labeling and high- performance liquid chromatography

J Suzuki, A Kondo, I Kato, S Hase and T Ikenaka
Biotechnology Research Laboratories, Takara Shuzo Co., Ltd., Shiga, Japan.

The concentrations of free fucose and other sugars in urine of cancer patients and healthy subjects were analyzed by high-performance liquid chromatography. After the urine samples were dried, we coupled the sugars in the residue with 2-aminopyridine to be detected as fluorescent derivatives. We then analyzed the pyridylamino derivatives of the sugars with an anion-exchange column and borate buffer. The difference between cancer patients and healthy subjects for the mean concentrations of fucose corrected for creatinine was significant (P less than 0.001). We checked the relationship between the concentrations of other sugars and the presence of cancer. This method is highly sensitive, and neither a cleanup procedure before labeling nor purification before injection into the column is needed. Not only fucose but also other sugars can be detected simultaneously, so this method should be useful for studying any changes in sugars in urine in various diseases.


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Copyright © 1992 by the American Association for Clinical Chemistry.