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Study of Central Putative Neurotransmitters in Rodent Models of Parkinsonism

  • C. Nath
  • M. B. Gupta
  • G. P. Gupta
  • R. C. Srimal
  • B. N. Dhawan
Part of the Advances in Behavioral Biology book series (ABBI, volume 38A)

Abstract

Considerable insight has been gained into central neurotransmitter mechanisms operating in the extrapyramidal system. Involvement of dopaminergic and cholinergie mechanisms in parkinsonism is now well established. Besides dopaminergic and cholinergic systems, existence of other neurotransmitters has also been reported in the nigrostrial area. Okada (1976) found a high concentration of GABA in substantia nigra (SN) and pallidum. Dray and Straughan (1976) reported the highest concentration of GABA at junction of zona compacta and zona reticulata of SN. The nerve terminals of 5-hydroxytryptamine (5-HT) are present in zona reticulate and in the striatum (Dray and Straughan, 1976). Schwartz et al.(1980) reported the presence of histamine (HA) and its synthesizing enzyme l-histidine decarboxylase in the striatum. However, role of these central putative neurotransmitters — GABA, 5-HT and HA in Parkinson is not clear. Therefore, in the present study the effects of administration of GABA, 5-HT and HA by intracerebroventricular route, have been investigated on experimental models of Parkinsonism in rats.

Keywords

Substantia Nigra Zona Compacta Central Drug Research Institute Extrapyramidal System Normal Saline Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • C. Nath
    • 1
  • M. B. Gupta
    • 1
  • G. P. Gupta
    • 1
  • R. C. Srimal
    • 2
  • B. N. Dhawan
    • 2
  1. 1.Neuropharmacology Unit (CDRI), Department of PharmacologyK.G’s Medical CollegeLucknowIndia
  2. 2.Central Drug Research InstituteLucknowIndia

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