The effects of inorganic lead on the neuromuscular junction

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Abstract

The effects of inorganic lead on neuromuscular function were examined using the rat and mouse phrenic nerve-hemidiaphragm preparations. In vitro lead was found to decrease the force of contraction and to increase the latency between nerve stimulation and contraction. These effects were not seen when the muscle was stimulated directly. Responses of lead-treated preparations to acetylcholine and acetyl-β-methylcholine were unchanged. In addition, neuromuscular function was impaired in mice chronically exposed to lead. The results support the hypothesis of a prejunctional site of action of inorganic lead.

Original languageEnglish (US)
Pages (from-to)795-801
Number of pages7
JournalNeuropharmacology
Volume13
Issue number9
DOIs
StatePublished - Sep 1974

ASJC Scopus subject areas

  • Pharmacology
  • Cellular and Molecular Neuroscience

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