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Cannabis and the peripheral nervous system

M DiBenedetto, H B McNamee, J C Kuehnle

    The British Journal of Psychiatry : the Journal of Mental Science
    |October 1, 1977
    PubMed
    Summary

    This study found no evidence of cannabis negatively impacting peripheral nerve function in male subjects. Nerve conduction studies showed no deterioration in either casual or heavy cannabis users after a three-week smoking period.

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    Area of Science:

    • Neuroscience
    • Pharmacology

    Background:

    • Cannabis use is widespread, raising concerns about potential neurological effects.
    • The peripheral nervous system's response to cannabis, particularly concerning nerve conduction, requires further investigation.

    Purpose of the Study:

    • To investigate the potential ill-effects of cannabis on the peripheral nervous system.
    • To assess motor and sensory nerve conduction in relation to cannabis consumption levels.

    Main Methods:

    • Twenty-seven male subjects were categorized as casual or heavy cannabis users.
    • Baseline nerve conduction studies were performed, followed by a three-week period of standardized cannabis smoking.
    • Nerve conduction studies were repeated post-intervention to evaluate changes.

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    Main Results:

    • Casual users smoked an average of 54.3 cannabis cigarettes; heavy users smoked an average of 109.5.
    • No statistically significant deterioration in peripheral nerve function was observed in either group.
    • Motor and sensory nerve conduction parameters remained stable throughout the study period.

    Conclusions:

    • Cannabis consumption, at the levels studied, did not demonstrate adverse effects on peripheral nerve function in males.
    • Further research may be warranted to explore long-term effects or different usage patterns.