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Related Experiment Videos

Changes with age in the human kidney

V K Goyal

    Experimental Gerontology
    |January 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Kidney aging causes a significant decrease in tubular and glomerular cells and glomerular tufts. Senile kidneys show enlarged structures and increased cell variation, indicating age-related kidney changes.

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    Area of Science:

    • Nephrology
    • Gerontology
    • Pathology

    Background:

    • Kidney structure undergoes changes throughout the lifespan.
    • Understanding age-related renal alterations is crucial for geriatric health.
    • Previous studies suggest cellular and structural modifications in aging kidneys.

    Purpose of the Study:

    • To investigate age-related histologic and micrometric changes in human kidneys.
    • To quantify alterations in cell numbers and sizes within the aging kidney.
    • To analyze the variation in kidney parameters across different age groups.

    Main Methods:

    • Histologic examination of 100 human kidney autopsy cases (ages 1-70).
    • Micrometric analysis to measure cell and structure sizes.
    • Statistical analysis to assess changes in cell counts, sizes, and variation coefficients.

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    Main Results:

    • Significant decrease in the number of tubular and glomerular cells with age.
    • Reduced number of glomerular tufts per unit area in older individuals.
    • Increased size of Malpighian corpuscles, glomerular tufts, and cell nuclei in senile kidneys.
    • General increase in the coefficient of variation with advancing age.

    Conclusions:

    • Aging leads to a reduction in functional kidney cells and glomerular structures.
    • Senile kidneys exhibit cellular and structural hypertrophy alongside increased variability.
    • These findings highlight significant age-dependent structural remodeling in the human kidney.