Article date: 1989/8/14
PubMed ID: 2779858
Journal name: Neuroscience letters (ISSN: 0304-3940)
Four groups of rats with a unilateral ibotenic acid lesion of the nucleus basalis were treated with saline, nerve growth factor (NGF) 10 micrograms administered intracerebroventricularly twice per week, sialoganglioside GM1 30 m/kg daily i.p. and NGF twice per week plus GM1 10 mg/kg i.p. daily, respectively, beginning immediately after lesioning. Twenty-one days later the rats treated with saline showed a marked impairment in negotiating a 'step through' passive avoidance conditioned response, a 32% decrease in the number of choline acetyltransferase (ChAT)-positive neurons in the lesioned nucleus basalis and a 12% decrease in their areas. The rats treated with NGF and NGF plus GM1 showed no difference from sham-operated rats. In the GM1-treated rats a 12% decrease only in the number of ChAT-positive neurons was detected while performance and neuronal areas were normal. These findings indicate that NGF and GM1 prevent the cholinergic deficit by protecting the cholinergic neurons of the nucleus basalis from ibotenic acid neurotoxicity.
Author List: Casamenti F, Di Patre P L, Milan F, Petrelli L, Pepeu G
Publication Types: Journal Article; Research Support, Non-U.S. Gov't
Substances mentioned in the article: Nerve Growth Factors; Ibotenic Acid; G(M1) Ganglioside; Choline O-Acetyltransferase; Choline;
Mesh terms: Animals; Avoidance Learning/physiology; Basal Ganglia/cytology; Cell Count; Choline/physiology; Choline O-Acetyltransferase/metabolism; G(M1) Ganglioside/pharmacology; Ibotenic Acid/pharmacology; Male; Nerve Growth Factors/pharmacology; Neurons/cytology; Rats; Rats, Inbred Strains; Substantia Innominata/cytology;