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Cancer and aging.

A Macieira-Coelho

    Experimental Gerontology
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Cancer incidence is linked to chronological age, not biological aging. Some age-related factors may even protect against certain cancers in older individuals.

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    Area of Science:

    • Oncology
    • Gerontology
    • Epidemiology

    Background:

    • The incidence of cancer is widely believed to increase with aging.
    • Numerous hypotheses attempt to explain the association between cancer and aging.

    Purpose of the Study:

    • To reappraise the relationship between cancer incidence and aging.
    • To investigate whether cancer incidence truly increases with senescence.

    Main Methods:

    • Literature review and analysis of existing studies on cancer incidence across different age groups.
    • Examination of age-specific cancer incidence data in humans and animals.

    Main Results:

    • While most cancers increase in the latter half of life, many do not progressively increase with senescence.
    • Cancer incidence often plateaus or decreases in very old individuals.
    • Late-developing tumors may exhibit slower progression.

    Conclusions:

    • Cancer incidence appears more related to chronological age than to the aging process itself.
    • Senescence may involve protective mechanisms against the development of certain cancers.