| 摘要 |
Human cancer is diagnosed/monitored by measuring the levels of certain modified nucleosides, such as N-[9-( beta -D-ribofuranosyl)purin-6-ylcarbamoyl]-L-threonine, in the urine of a subject by a quantitative immunoassay that preferably employs a monoclonal anti-modified nucleoside antibody and comparing that level to the level of the modified nucleoside that occurs in the urine of normal subjects to determine whether the former is substantially elevated over the latter or by comparing that level to the level of the modified nucleoside present in urine specimens taken from the subject at different times. |
