Article contents
In Search of the Identity of the Cerebellar Climbing Fiber Transmitter: Immunocytochemical Studies in Rats
Published online by Cambridge University Press: 18 September 2015
Abstract:
Quantitative immunogold cytochemistry at the electron microscopic level was used to assess the endogenous contents of glutamate, aspartate, homocysteic acid, and glutamine (a precursor of glutamate) in the cerebellar climbing fiber terminals. Of the three excitatory amino acids, only glutamate appeared to be enriched in these terminals. The climbing fiber terminals also displayed immunoreactivity for glutamine. The level of aspartate immunoreactivity was far higher in the nerve cell bodies in the inferior olive than in their terminals in the cerebellar cortex. Homocysteic acid immunolabelling was concentrated in glial cells including the Golgi epithelial cells in the Purkinje cell layer. Our immunocytochemical data indicate that glutamate is a more likely climbing fiber transmitter than aspartate and homocysteic acid.
- Type
- Abstract
- Information
- Copyright
- Copyright © Canadian Neurological Sciences Federation 1993
References
REFERENCES
- 7
- Cited by