Levels of several amino acids in the cerebellar peduncles and four medullary nuclei of control and 3-acetylpyridine-treated rats

W. J. McBride, M. A. Rea, D. L. Felten, N. Sinisi, B. H. Rohde

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Abstract

The levels of aspartate, glutamate, GABA, taurine, glycine, and alanine were determined in the inferior (ICP), middle (MCP) and superior (SCP) cerebellar peduncles, and in the inferior olive (ION), lateral reticular (LRN), lateral vestibular (LVN) and descending trigeminal (DTN) nuclei of control rats and of rats given a single intraperitoneal injection of 65 mg/kg of 3-acetylpyridine (3-AP). The content of glutamate in the MCP and SCP was 30% higher than that found for the ICP. The content of GABA was 4 to 6-fold greater in the SCP than in either the ICP or MCP. The level of taurine in the SCP was 25% lower than the value in the MCP but was not significantly lower than the value for the ICP. The levels of aspartate, glycine, and alanine were evenly distributed among the three peduncles. The contents of aspartate, glutamate, taurine, and alanine were evenly distributed among the four medullary nuclei. The level of glycine was significantly greater in the DTN than in either the LRN or LVN. The content of GABA in the ION and LVN was significantly greater than the value found for the LRN. Injection of 3-AP caused a decrease in the level of taurine of 10% in the ION and LRN, 15% in the LVN, and 25% in the DTN. No other statistically significant differences were found in the levels of the amino acids in the peduncles or medullary nuclei following 3-AP treatment. The present data do not support the idea that asparate and/or taurine are present in relatively high concentrations in the cerebellar climbing fibers.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalNeurochemical Research
Volume5
Issue number3
DOIs
StatePublished - Mar 1980

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Taurine
Rats
Amino Acids
Aspartic Acid
Alanine
Glycine
gamma-Aminobutyric Acid
Glutamic Acid
Rat control
Trigeminal Nuclei
Intraperitoneal Injections
3-acetylpyridine
Injections
Fibers

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry

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Levels of several amino acids in the cerebellar peduncles and four medullary nuclei of control and 3-acetylpyridine-treated rats. / McBride, W. J.; Rea, M. A.; Felten, D. L.; Sinisi, N.; Rohde, B. H.

In: Neurochemical Research, Vol. 5, No. 3, 03.1980, p. 337-344.

Research output: Contribution to journalArticle

McBride, W. J. ; Rea, M. A. ; Felten, D. L. ; Sinisi, N. ; Rohde, B. H. / Levels of several amino acids in the cerebellar peduncles and four medullary nuclei of control and 3-acetylpyridine-treated rats. In: Neurochemical Research. 1980 ; Vol. 5, No. 3. pp. 337-344.
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