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Journal of Neurology, Neurosurgery, and Psychiatry logoLink to Journal of Neurology, Neurosurgery, and Psychiatry
. 1982 Apr;45(4):366–368. doi: 10.1136/jnnp.45.4.366

Phenylacetic acid in human body fluids: high correlation between plasma and cerebrospinal fluid concentration values.

M Sandler, C R Ruthven, B L Goodwin, A Lees, G M Stern
PMCID: PMC491374  PMID: 7077347

Abstract

In a group of six Parkinsonian patients and 13 "controls" with non-Parkinsonian neurological disease, there was a high correlation between both free and conjugated phenylacetic acid concentrations in plasma and cerebrospinal fluid taken at about the same time. This compound is the major metabolite of phenylethylamine, the production of which may be disturbed in a number of neuropsychiatric illnesses. Thus plasma measurements might be employed clinically to provide an estimate of central changes in phenylethylamine economy. A small but significantly higher proportion of conjugated phenylacetic acid was present in the plasma (but not cerebrospinal fluid) of Parkinsonians compared with controls.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Carter S. M., Youdim M. B., Sandler M., Hunter K. R., Stern G. M. Enhanced tyramine conjugation in Parkinson's disease. Clin Chim Acta. 1974 Mar 26;51(3):327–329. doi: 10.1016/0009-8981(74)90320-9. [DOI] [PubMed] [Google Scholar]
  2. DAVISON A. N., SANDLER M. Inhibition of 5-hydroxytryptophan decarboxylase by phenylalanine metabolites. Nature. 1958 Jan 18;181(4603):186–187. doi: 10.1038/181186b0. [DOI] [PubMed] [Google Scholar]
  3. Elsworth J. D., Glover V., Reynolds G. P., Sandler M., Lees A. J., Phuapradit P., Shaw K. M., Stern G. M., Kumar P. Deprenyl administration in man: a selective monoamine oxidase B inhibitor without the 'cheese effect'. Psychopharmacology (Berl) 1978 Apr 14;57(1):33–38. doi: 10.1007/BF00426954. [DOI] [PubMed] [Google Scholar]
  4. Fellows L. E., King G. S., Pettit B. R., Goodwin B. L., Ruthven C. R., Sandler M. Phenylacetic acid in human cerebrospinal fluid and plasma: selected ion monitoring assay. Biomed Mass Spectrom. 1978 Aug;5(8):508–511. doi: 10.1002/bms.1200050809. [DOI] [PubMed] [Google Scholar]
  5. Fischer E. The phenethylamine hypothesis of thymic homeostasis. Biol Psychiatry. 1975 Dec;10(6):667–673. [PubMed] [Google Scholar]
  6. Fulton T. R., Triano T., Rabe A., Loo Y. H. Phenylacetate and the enduring behavioral deficit in experimental phenylketonuria. Life Sci. 1980 Oct 6;27(14):1271–1281. doi: 10.1016/0024-3205(80)90220-9. [DOI] [PubMed] [Google Scholar]
  7. Goodwin B. L., Ruthven C. R., Sandler M. Gas chromatographic assay of phenylacetic acid in biological fluids. Clin Chim Acta. 1975 Aug 4;62(3):443–446. doi: 10.1016/0009-8981(75)90098-4. [DOI] [PubMed] [Google Scholar]
  8. Loo Y. H., Fulton T., Miller K., Wisniewski H. M. Phenylacetate and brain dysfunction in experimental phenylketonuria: synaptic development. Life Sci. 1980 Oct 6;27(14):1283–1290. doi: 10.1016/0024-3205(80)90221-0. [DOI] [PubMed] [Google Scholar]
  9. Loo Y. H., Miller K. A., Nowlin J., Horning M. G. Identification of metabolites of phenylacetic acid in rat brain by plasma desorption mass spectrometry. Life Sci. 1980 Feb 25;26(8):657–663. doi: 10.1016/0024-3205(80)90243-x. [DOI] [PubMed] [Google Scholar]
  10. Pedemonte W. A., Mosnaim A. D., Bulat M. Penetration of phenylacetic acid across the blood-cerebrospinal fluid barrier. Res Commun Chem Pathol Pharmacol. 1976 May;14(1):111–116. [PubMed] [Google Scholar]
  11. Proceedings of the Biochemical Society. Biochem J. 1951 Jun;49(1):i.2–xxii. [PMC free article] [PubMed] [Google Scholar]
  12. Sandler M., Reynolds G. P. Does phenylethylamine cause schizophrenia? Lancet. 1976 Jan 10;1(7950):70–71. doi: 10.1016/s0140-6736(76)90156-2. [DOI] [PubMed] [Google Scholar]
  13. Sandler M., Ruthven C. R., Goodwin B. L., Coppen A. Decreased cerebrospinal fluid concentration of free phenylacetic acid in depressive illness. Clin Chim Acta. 1979 Apr 2;93(1):169–171. doi: 10.1016/0009-8981(79)90261-4. [DOI] [PubMed] [Google Scholar]
  14. Sandler M., Ruthven C. R., Goodwin B. L., King G. S., Pettit B. R., Reynolds G. P., Tyrer S. P., Weller M. P., Hirsch S. R. Raised cerebrospinal fluid phenylacetic acid concentration: preliminary support for the phenylethylamine hypothesis of schizophrenia? Commun Psychopharmacol. 1978;2(3):199–202. [PubMed] [Google Scholar]
  15. Sandler M., Ruthven C. R., Goodwin G. L., Field H., Matthews R. Phenylethylamine overproduction in aggressive psychopaths. Lancet. 1978 Dec 16;2(8103):1269–1270. doi: 10.1016/s0140-6736(78)92037-8. [DOI] [PubMed] [Google Scholar]
  16. Sandler M., Youdim M. B., Hanington E. A phenylethylamine oxidising defect in migraine. Nature. 1974 Jul 26;250(464):335–337. doi: 10.1038/250335a0. [DOI] [PubMed] [Google Scholar]

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