Neurochemical Research

, Volume 17, Issue 9, pp 835–839 | Cite as

Effect of 2,5-hexanedione and 3,4-dimethyl-2,5-hexanedione on retrograde axonal transport in sciatic nerve

  • Mohammad I. Sabri
Original Articles


The effects of systemically introduced neurotoxic solvents 2,5-hexanedione (2,5-HD) and 3,4-dimethyl-2,5-hexanedione (DMHD) on retrograde axonal transport (RT) of125I-labeled tetanus toxin (TT) was studied in rat and mouse sciatic nerves. The rate of retrograde transport of TT in control rat sciatic nerves was slightly higher (6.8±0.4 mm/h) than in mouse sciatic nerves (5.4±0.5 mm/h). A single high dose of 2,5-HD (1,000 mg/kg, i.p.) produced a time-dependent effect on RT in mouse sciatic nerves. 2,5-HD caused a gradual decrease in the velocity of RT (approximately 65% inhibition between 2.0–2.5 h) with a reversal to normal rate 3–5 h after the toxin administration. The effect of DMHD on RT was examined following semi-chronic treatment in rats. DMHD caused a significant decrease (approximately 50%) in the rate of TT transport, in addition, it produced weight loss and hind-limb paralysis.

Key Words

2,5-Hexanedione 3,4-dimethyl-2,5-hexanedione axonal transport, retrograde axonal transport neurotoxicity neuropathy peripheral nerves 


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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • Mohammad I. Sabri
    • 1
  1. 1.Center For Research On Occupational And Environmental Toxicology (L606)Oregon Health Sciences University Portland

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