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Brain weights in octogenarians

T H Howell

    Journal of the American Geriatrics Society
    |October 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Octogenarian brains examined at autopsy were lighter than accepted normal values. However, they were heavier than nonagenarian brains, which had more significant pathologic changes.

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    Area of Science:

    • Neurology
    • Gerontology
    • Pathology

    Background:

    • Brain weight typically declines with advanced age.
    • Understanding age-related changes in brain morphology is crucial for diagnosing neurological conditions.
    • Previous studies have reported varying brain weights in elderly populations.

    Purpose of the Study:

    • To determine the average brain weight in octogenarians.
    • To investigate the correlation between brain weight, sex, and pathological changes in this age group.
    • To compare brain weight in octogenarians with that of nonagenarians.

    Main Methods:

    • Autopsy examination of 102 octogenarian brains.
    • Brain weight measurement in grams (gm).
    • Classification based on sex and observed pathological alterations.

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    Main Results:

    • Brain weights ranged from 818 gm to 2075 gm.
    • The studied octogenarian brains were lighter than established normal brain weights.
    • Octogenarian brains were heavier than previously reported nonagenarian brains with higher pathology rates.

    Conclusions:

    • Advanced age, particularly beyond 80 years, is associated with reduced brain mass.
    • Pathological conditions may influence brain weight more significantly in very advanced age (nonagenarians).
    • Further research is needed to establish precise normative data for brain weight across different elderly age groups.