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  • Title: Relative usefulness of measuring polyamines in serum, plasma, and urine as biochemical markers of cancer.
    Author: Russell DH, Russell SD.
    Journal: Clin Chem; 1975 Jun; 21(7):860-3. PubMed ID: 48436.
    Abstract:
    Serial samples of plasma and serum were collected in the morning and afternoon from cancer patients, along with 24-h urine specimens. Values for serum and plasma samples taken at the same time from the same patient differed little, suggesting that either procedure is acceptable for polyamine analysis. Increases in concentrations of putrescine and spermidine in serum and plasma correlate well with such increases in 24-h urine samples. Spermidine concentrations in sera were consistently about 10-fold lower than corresponding urine values. Putrescine concentrations were 10- to 100-fold different. The variation in putrescine values may be due to its more active metabolism by diamine oxidase, an enzyme known to be present in serum. Concentrations of polyamines in serum and urine increased in response to effective chemotherapy.
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