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Brain growth in man.

H J Kretschmann, G Kammradt, I Krauthausen

    Bibliotheca Anatomica
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    This study analyzed male brain growth using logistic functions, finding ideal weights and growth factors. Histological shrinkage was corrected for accurate morphometric analysis of brain development.

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    Area of Science:

    • Neuroscience
    • Developmental Biology
    • Biometry

    Background:

    • Human brain development research relies on accurate morphometric analysis.
    • The Yakovlev Collection provides valuable serial sections for studying brain growth.
    • Histological processing can introduce significant shrinkage, affecting morphometric accuracy.

    Purpose of the Study:

    • To calculate normative growth parameters for male brains.
    • To compare growth parameters between different brain collections.
    • To assess and correct for histological shrinkage in morphometric analysis.

    Main Methods:

    • Selected 25 male brains from the Yakovlev Collection for morphometric study.
    • Applied the generalized logistic function to calculate growth parameters (ideal weight, half value time, growth factor).

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  • Assessed histological shrinkage based on brain age and corrected for individual variations.

    • Main Results:

    • Calculated ideal weight (1,313 g), half value time (387 days), and growth factor (4.0) for the Yakovlev sample.
    • Compared these parameters with a larger sample from Hannover, noting minor discrepancies attributed to sample size and data limitations.
    • Quantified histological shrinkage, with fetal brains shrinking ~75% and adult brains ~50%, varying individually.

    Conclusions:

    • Normative growth parameters for male brains were established.
    • Individual correction for histological shrinkage is crucial for accurate morphometric analysis of brain development.
    • Combining data from multiple sources enhances the reliability of human brain growth studies.