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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
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    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.

    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.