Comment on 'The ratio of plasma phenylalanine to other large neutral amino acids is not a risk factor for tardive dyskinesia'

Bjerkenstedt L. , Edman G. , Hagenfeldt L. , Sedvall G. , Wiesel F-A. (1985) Plasma amino acids in relation to cerebrospinal fluid monoamine metabolites in schizophrenic patients and healthy controls . Br J Psychiatr 147: 276-282

Bremer H.J. , Duran M. , Kamerling J.P. , Przyrembel H. , Wadman S.K. (1981) Disturbances of amino acid metabolism : clinical chemistry and diagnosis. Urban & Schwarzenberg, Baltimore

Elsas L.J. , II Trotter J.F. (1988) Changes in physiological concentrations of blood phenylalanine produce changes in sensitive parameters of human brain function . In Wurtman R J , Ritter-Walker E (eds), Dietary phenylalanine and brain function . Birkhauser, Boston, pp. 187-195

Epstein C.M. , Trotter J.F. , Averbook A. , Freeman S. , Kutner M.H. , Elsas L.J. (1989) EEG mean frequencies are sensitive indices of phenylalanine effects on normal brain. Electroencephalogr Clin Neurophysiol 72: 133-139

Gardos G. , Cole J.O. , Matthews J.D. , Nierenberg A.A. , Dugan S.J. (1992) The acute effects of a loading dose of phenylalanine in unipolar depressed patients with and without tardive dyskinesia. Neuropsychopharmacology 6: 241-247

Geddes J. , Reynolds G. , Rattenbury J.M. , Peet M. ( 1992) The ratio of plasma phenylalanine to other large neutral amino acids is not a risk factor for tardive dyskinesia. J Psychopharmacol 6: 278-280

Hagenfeldt L. , Bjerkenstedt L. , Edman G. , Sedvall G. , Wiesel F-A. (1984) Amino acids in plasma and CSF and monoamine metabolites in CSF: interrelationship in healthy subjects. J Neurochem 42: 833-837

Pardridge W.M. (1986) Potential effects of the dipeptide sweetener aspartame on the brain. In Wurtman R J , Wurtman J J (eds), Nutrition and the brain . Vol 7. Raven Press, New York, pp. 199-241

Rao M.L. , Gross G. , Strebel B. , Braunig P. , Huber G. , Klosterkotter J. (1990) Serum amino acids, central monoamines, and hormones in drug-naive, drug-free, and neuroleptic-treated schizophrenic patients and healthy subjects. Psychiatr Res 34: 243-257

Richardson M.A. , Haugland G. , Pass R. , Craig T.J. (1986) The prevalence of tardive dyskinesia in a mentally retarded population. Psychopharmacol Bull 22: 243-249

Richardson M.A. , Suckow R. , Whittaker R. , Boggiano W. , Sziraki I. , Kushner H. , Perumal A. (1989) The plasma phenylalanine/large neutral amino acid ratio. A risk factor for tardive dyskinesia. Psychopharmacol Bull 25: 47-51

Richardson M.A. , Flynn C.J. , Read L. , Suckow R. , Sziraki I. , Kushner H. , Boggiano W. (1992a) Amino acids, serotonin and TD remission. New York State Office of Mental Health Research Conference, Albany, December 7-9

Richardson M.A. , Flynn C.J. , Read L. , Suckow R. , Sziraki I. , Kushner H. , Boggiano W. (1992b) Phenylalanine to serotonin to tardive dyskinesia: A new model. Proceedings of the 2nd International Symposium on Serotonin, from Cell Biology to Pharmacology and Therapeutics , Houston, September 15-18

Richardson M.A. , Flynn C.J. , Read L. , Suckow R. , Sziraki I. , Kushner H. , Boggiano W. (1992c) PKU-like PHE metabolism is associated with tardive dyskinesia. Proceedings of the 5th International Amine Oxidase Meeting, Galway, Ireland August 24-27

Wall K.M. , Pardridge W.M. (1990) Decreases in brain protein synthesis elicited by moderate increases in plasma phenylalanine. Biochem Biophys Res Commun 168: 1177-1183