Summary
Tranylcypromine produces behavioral excitation while pargyline produces depression. Tranylcypromine increased brain tryptophan which led to an accumulation of tryptamine. The levels of tryptamine after tranylcypromine were found to be 3 times those found after pargyline.
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This work was supported in part by U. S. Public Health Service Grants NS-12759 and AA-2696, State of Illinois Department of Mental Health, the Psychiatric Services Branch, Province of Saskatchewan, and the Medical Research Council of Canada, who have provided continuing financial support.
Acknowledgments. We thank Dr B. A. Davis for synthesizing the deuterated internal standards, Dr D. A. Durden for supervising the mass spectrometric analyses, and Mr H. Miyashita, Mr N. F. Binder and Miss E. E. Johnson for skilled technical assistance.
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Tabakoff, B., Moses, F., Philips, S.R. et al. Effects of tranylcypromine and pargyline on brain tryptamine. Experientia 33, 380–381 (1977). https://doi.org/10.1007/BF02002839
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DOI: https://doi.org/10.1007/BF02002839