Further Evidences for Neuroprotective Effects of Melatonin

  • D. Franceschini
  • S. D. Skaper
  • M. Floreani
  • G. Borin
  • P. Giusti
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 467)

Abstract

The physiological roles of the pineal hormone melatonin are still not completely clarified. Recently it has been shown that melatonin is a potent, endogenous scavenger of reactive oxygen species suggesting that it might interfere with neurodegenerative processing involving free-radical formation and excitatory aminoacid release. These neuroprotective effects of melatonin may result, at least in part, from a sparing of glutathione reductase, which is decreased following administration of the neurotoxic agent kainate (KA) in rats. Moreover, KA causes a rapid decrease in glutathione (GSH) content of cultured cerebellar granule neurons but not in astrocytes. These cell types both express functional KA receptors, but only the former is sensitive to reactive oxygen species-dependent KA injury. Melatonin counteracts the changes in GSH, induced by KA, in cultured cerebellar granule neurons.

Keywords

Cerebellar Granule Cerebellar Granule Cell Cerebellar Granule Neuron Excitatory Amino Acid Receptor Cerebellar Granule Cell Culture 
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

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • D. Franceschini
    • 1
  • S. D. Skaper
    • 3
  • M. Floreani
    • 1
  • G. Borin
    • 2
  • P. Giusti
    • 1
  1. 1.Department of PharmacologyUniversity of PadovaPadovaItaly
  2. 2.Biopolymer Research Center CNR and Department of Organic ChemistryUniversity of PadovaPadovaItaly
  3. 3.Smith Kline Beecham Pharmaceuticals Neuroscience Research DepartmentHarlow, EssexUK

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