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Regional glycine receptor binding in the p,p′-DDT myoclonic rat model

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Abstract

Abnormal glycinergic neurotransmission has been implicated in the pathophysiology of DDT-induced myoclonus. To examine the role of glycine receptors in the DDT model, was measured [3H]strychnine receptor binding in brainstem and spinal cord in the rat after acute administration of DDT. The highest dose of DDT tested significantly increased both Bmax (20%) and Kd (57%) of glycine sites in spinal cord but not brainstem compared to vehicle-treated controls at 4 h. Lower DDT doses, which also induced myoclonus, had no significant effects on [3H]strychnine specific binding. In vitro, 10−7 DDT did not displace [3H] strychnine binding in naive rat spinal cord, but higher doses could not be studied due to poor solubility of DDT under the assay conditions. These data suggest that only a maximal dose of DDT has significant though mixed effects on parameters of [3H] strychnine binding in spinal cord which are not correlated with the onset of myoclonus.

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References

  • Aprison MH, Daly EC (1978) Biochemical aspects of transmission inhibitory synapses: the role of glycine. In: Advances in neurochemistry, Vol. 3. Plenum Publishing Co., New York

    Google Scholar 

  • Chung E, Van Woert MH (1984) DDT myoclonus: sites and mechanism of action. Exp Neurol 85: 273–282

    Article  CAS  PubMed  Google Scholar 

  • Chung E, Yocca F, Van Woert MN (1985) Urea-induced myoclonus: medullary glycine antagonism as mechanism of action. Life Sci 36: 1051–1058

    Article  CAS  PubMed  Google Scholar 

  • Curtis DR, Hosti L, Johnston GAR, Johnston IA (1986) The hyperpolarization of spinal motoneurones by glycine and related amino acids. Exp Brain Res 5: 235–258

    Google Scholar 

  • Ferenci P, Pappas SC, Munson PJ, Henson K, Jones EA (1984) Changes in the status of neurotransmitter receptors in a rabbit model of hepatic encephalopathy. Hepatology 4: 186–191

    CAS  PubMed  Google Scholar 

  • Globus JH (1948) DDT (2,2 bis-p-chlorophenyl) 1,1,1-trichloroethane) poisoning. J Neuropathol Exp Neurol 7: 418–431

    Google Scholar 

  • Hayes WJ (1959) Pharmacology and toxicology of DDT. In: Mueller (ed) The insecticide dichlorodiphenyl trichloroethane and its significance, Vol 2. Birkhauser, Basel, pp 11–247

    Google Scholar 

  • Herr DW, Gallus JA, Tilson HA (1987) Pharmacological modification of tremor and enhanced acoustic startle by chlorodecone and p,p′-DDT. Psychopharmacology 91: 320–325

    Article  CAS  PubMed  Google Scholar 

  • Hudson PM, Chen PH, Tilson HA, Hong JS (1985) Effects of p,p′-DDT on the rat brain concentrations of biogenic amine and amino acid neurotransmitters and their association with p,p′-DDT induced tremor and hyperthermia. J Neurochem 45: 1349–1355

    CAS  PubMed  Google Scholar 

  • Hunter C, Chung E, Van Woert MH (1986) Antimyoclonic action of milacemide in p,p′-DDT-induced myoclonus in mice. Soc Neurosci Abstr 12[2]: 1243

    Google Scholar 

  • Hrdina PD, Singhol RL, Peters DAV (1973) Some neurochemical alterations during acute DDT poisoning. Toxicol Appl Pharmacol 25: 276–288

    Article  CAS  PubMed  Google Scholar 

  • Hwang EC, Van Woert MH (1978) p,p′-DDT-induced neurotoxic syndrome: experimental myoclonus. Neurology 28: 1020–1025

    CAS  PubMed  Google Scholar 

  • Kar PP, Matin MA (1974) Possible role of cerebral amino acids in acute neurotoxic effects of DDT in mice. J Pharmacol 25: 36–39

    CAS  Google Scholar 

  • Pranzatelli MR, Snodgrass SR (1985) The pharmacology of myoclonus. Clin Neuropharmacol 8: 99–130

    CAS  PubMed  Google Scholar 

  • Pycock CJ, Kerwin RW (1981) The status of glycine as a supraspinal neurotransmitter. Life Sci 28: 2679–2686

    Article  CAS  PubMed  Google Scholar 

  • Simila S, Von Wendt L, Linna SL (1980) Dipropylacetate and amir. aciduria. J Neurol Sci 45: 83–86

    Article  CAS  PubMed  Google Scholar 

  • White WF (1985) The glycine receptor in the mutant mouse spastic (sp. strychnine binding characteristics and pharmacology. Brain Res 32 1–6

    Google Scholar 

  • Woolley DE (1982) Neurotoxicity of DDT and possible mechanisms action. In: Prasad K, Vernadakis A (eds) Mechanisms of action neurotoxic substances. Raven Press, New York, pp 95–141

    Google Scholar 

  • Young AB, Snyder SH (1973) Strychnine binding associated with gl cine receptors of the central nervous system. Proc Natl Acad S 70: 2832–2836

    CAS  Google Scholar 

  • Young AB, Snyder SH (1974) Strychnine binding in rat spinal co membranes associated with the synaptic glycine receptor: cooper tivity in glycine interactions. Mol Pharmacol 10: 790–809

    CAS  Google Scholar 

Download references

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Pranzatelli, M.R., Tkach, K. Regional glycine receptor binding in the p,p′-DDT myoclonic rat model. Arch Toxicol 66, 73–76 (1992). https://doi.org/10.1007/BF02307273

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  • DOI: https://doi.org/10.1007/BF02307273

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