Nerve conduction velocity and spinal reflexes may change in rats after fumonisin B1 exposure

Ilona Banczerowski-Pelyhe, L. Détári, Ildikó Világi, T. Kukorelli

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Mycotoxin fumonisin B1 (FB1) a natural inhibitor of ceramide synthase contaminating mainly the corn-based food and feed may cause dysfunctions in the nervous system. In the present study peripheral neural dysfunctions were biomonitored after dietary FB1 exposure in rats. Daily oral doses of 6.2 mg/kg body weight/day FB1 were applied in rats for 2 weeks. Before and after FB1 treatment nerve conduction velocities of tibial and sciatic nerves and spinal reflexes were analyzed in vivo. Electrophysiological recordings of biphasic plantar EMG (M and H components) and evaluation of sensory and motor nerve conduction velocities were carried out. Nerve conduction velocities revealed decreasing tendencies after FB1 exposure. The flexor reflex and the H-components of the extensor reflex were significantly reduced. The proposed in vivo biomonitoring can reveal functional impairment of the peripheral nervous system caused by mycotoxin exposure. Reduction of conduction velocity and altered reflexes after FB1 exposure are suspected to be associated with modified signal transmission due to toxic systemic effects and possible changes in sphingolipid metabolism.

Original languageEnglish
Pages (from-to)413-422
Number of pages10
JournalActa biologica Hungarica
Volume53
Issue number4
DOIs
Publication statusPublished - Dec 19 2002

Keywords

  • Extensor reflex
  • Flexor reflex
  • Fumonisin B
  • Nerve conduction velocity
  • Plantar EMG

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Neurology

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