ISSN:
1435-1463
Keywords:
Hypoxia
;
gangliosides
;
dopamine
;
striatum
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Neonatal rats were injected with a mixture of bovine brain gangliosides (30 mg/kg body weight, s.c.) immediately before the exposure to hypoxia (pO2=10kPa, 10hrs daily) from the 2nd to the 11th day of life. At the age of 2–3 months the potential protective or restitutive effect of gangliosides on the radiolabelled dopamine release from striatal slices and on the conditioned avoidance learning was studied. No change in the content and the pattern of gangliosides of the rat striata was found after exposure to hypoxia and ganglioside administration, respectively. Both hypoxia exposure and ganglioside treatment of controls increased the dopamine release whereas hypoxic animals treated with gangliosides showed a diminished release. Hypoxia-induced impaired conditioned avoidance learning was improved by ganglioside treatment. The changed release of dopamine and the altered behavioural performance after ganglioside treatment alone indicate the necessity of a very cautious application of gangliosides to the developing brain.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01245012
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