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Related Experiment Videos

Bioelectric potentials associated with the growing deer antler.

F T Lake, G C Solomon, R W Davis

    Clinical Orthopaedics and Related Research
    |July 1, 1979
    PubMed
    Summary

    Bioelectric potentials in deer antlers correlate with bone growth rates. Increased antler growth corresponds to more negative electrical potentials, which normalize as growth ceases.

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    Area of Science:

    • * Bioelectricity
    • * Mammalian bone growth
    • * Deer antler biology

    Background:

    • * Developing deer antlers exhibit bioelectric potentials throughout their growth cycle.
    • * These electrical phenomena are linked to the underlying biological processes of bone development.
    • * Understanding these potentials may offer insights into bone regeneration and growth mechanisms.

    Purpose of the Study:

    • * To investigate the relationship between bioelectric potentials and longitudinal bone growth rates in deer antlers.
    • * To measure and compare electrical potentials at different locations on the antler during its growth cycle.
    • * To determine how changes in growth rate affect bioelectric potential characteristics.

    Main Methods:

    • * Measurement of surface bioelectric potentials using a high input impedance microvoltmeter with electrodes placed at the antler base (reference) and tip/shaft (recording).

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  • * Determination of longitudinal growth rates through periodic antler length measurements during the growth cycle.
  • * Comparative analysis of bioelectric potentials and growth rates across distinct growth phases.

    • Main Results:

    • * The most negative bioelectric potentials were consistently recorded at the antler tip.
    • * A direct correlation was observed: electronegativity increased with accelerated longitudinal growth and decreased as growth slowed.
    • * Bioelectric potentials reached a state of isopolarity (electrical neutrality) upon completion of antler growth.

    Conclusions:

    • * Bioelectric potentials serve as a reliable indicator of the rate of longitudinal bone growth in deer antlers.
    • * The observed changes in electronegativity reflect dynamic shifts in the biological activity driving antler development.
    • * Electrical properties of antlers change predictably throughout the growth cycle, reaching a stable state post-growth.