| abstract |
A simple early diagnosis method for breast cancer is provided. A method for examining breast cancer, in which a sample collected from a subject is analyzed to determine whether it is breast cancer from the ratio of a plurality of types of polyamines containing N1-acetylspermidine. The polyamines include at least spermine, N-acetylspermine, spermidine, N1-acetylspermidine, N8-acetylspermidine, and cadaverine (CAD), and a sample collected from a subject is a saliva sample. [Selection figure] None |