Abstract:
:Free amino acid determinations in the cerebrospinal fluid of patients with Parkinson's disease or other extrapyramidal disorders showed that in both groups most amino acids were increased. Significantly increased amino acids were neutral and basic amino acids. Amino acid clusters were present and corresponded with the grouping of amino acids in accordance with amino acid transport systems. The amino acids within the clusters showed a remarkable degree of correlation, and there was a notable correlation between the clusters both in the parkinsonian group and in the group of extrapyramidal disorders, but not in a control group. Our data suggest that in a number of extrapyramidal disorders, Parkinson's disease included, a more generalized abnormality exists than neuronal loss only and, in addition, that patients with these neurologic conditions have a common biochemical defect in their amino acid transport systems.
journal_name
Neurologyjournal_title
Neurologyauthors
Lakke JP,Teelken AWdoi
10.1212/wnl.26.5.489subject
Has Abstractpub_date
1976-05-01 00:00:00pages
489-93issue
5eissn
0028-3878issn
1526-632Xjournal_volume
26pub_type
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