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Related Experiment Videos

Urinary polyamines as a tumor marker.

S Kubota, M Okada, M Yoshimoto

    Cancer Detection and Prevention
    |January 1, 1985
    PubMed
    Summary
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    A new enzymatic assay for total urinary polyamines shows promise as a tumor marker. Elevated levels were detected in many cancer patients, decreasing post-surgery, indicating clinical utility.

    Area of Science:

    • Biochemistry
    • Oncology
    • Clinical Chemistry

    Background:

    • Polyamines are crucial in cell growth and proliferation.
    • Altered polyamine metabolism is linked to various cancers.
    • A simple enzymatic assay for total urinary polyamines was recently developed.

    Purpose of the Study:

    • To evaluate the clinical utility of measuring total urinary polyamines as a tumor marker.
    • To assess the diagnostic potential of the new enzymatic assay in cancer patients.

    Main Methods:

    • A novel, simple enzymatic assay was used to measure total polyamines in urine samples.
    • Urine samples were collected from 181 cancer patients and 36 gastrointestinal cancer patients before and after surgery.
    • Elevated polyamine levels were defined as those exceeding 3 standard deviations above the normal mean.

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    Main Results:

    • Elevated total urinary polyamines were observed in 116 out of 181 cancer patients (64.1% overall).
    • High detection rates were noted in stomach (68.1%), colon (68.8%), lung (66.7%), and gallbladder (100%) cancers.
    • Post-surgery, urinary polyamine levels normalized in 23 of 30 patients with gastrointestinal cancer who initially had elevated levels.

    Conclusions:

    • The determination of total urinary polyamines using the new enzymatic assay shows potential as a non-invasive tumor marker.
    • The assay demonstrates clinical usefulness in identifying cancer patients and monitoring treatment response.
    • Further validation is warranted to establish total urinary polyamines as a reliable biomarker in clinical oncology.