Cerebrospinal fluid as a reflector of central cholinergic and amino acid neurotransmitter activity in cerebellar ataxia
- PMID: 1978660
- DOI: 10.1001/archneur.1990.00530110048016
Cerebrospinal fluid as a reflector of central cholinergic and amino acid neurotransmitter activity in cerebellar ataxia
Abstract
Cerebrospinal fluid (CSF) amino acid neurotransmitters, related compounds, and their precursors, choline levels, and acetylcholinesterase activity were measured in the CSF of patients with cerebellar ataxia during a randomized, double-blind, crossover, placebo-controlled clinical trial of physostigmine salicylate. The CSF gamma-aminobutyric acid, methionine, and choline levels, adjusted for age, were significantly lower in patients with cerebellar ataxia compared with controls. Physostigmine selectively reduced the level of CSF isoleucine and elevated the levels of phosphoethanolamine. No change occurred in CSF acetylcholinesterase activity and in the levels of plasma amino compounds in patients with cerebellar ataxia when compared with controls. Median ataxia scores did not statistically differ between placebo and physostigmine nor did functional improvement occur in any of the patients.
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