Abstract
Observations are reported on the blood platelet 5-hydroxytryptamine content of six patients receiving imipramine, N-(γ-dimethylaminopropyl)-iminodibenzyl hydrochloride. The response was a fall to a level of one-sixth of the original in three weeks, with little change thereafter. This is in sharp contrast to the action of iproniazid which caused a rise of some 200% in the blood platelet 5-hydroxytryptamine level over the same period. Imipramine in a concentration of 1 mg./ml. had no inhibitory action on 5-hydroxytryptophan decarboxylase; 8.0 μg./ml. of imipramine suppressed two-thirds of the in vitro uptake of 5-hydroxytryptamine (2.5 μg./ml.) by normal human platelets.
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- ARMIN J., GRANT R. T. Further observations on vasoconstrictor substances in blood of rabbit and man. J Physiol. 1957 Oct 30;138(3):401–416. doi: 10.1113/jphysiol.1957.sp005858. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BORN G. V., INGRAM G. I., STACEY R. S. The relationship between 5-hydroxytryptamine and adenosine triphosphate in blood platelets. Br J Pharmacol Chemother. 1958 Mar;13(1):62–64. doi: 10.1111/j.1476-5381.1958.tb00191.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BRADLEY P. B., KEY B. J. A comparative study of the effects of drugs on the arousal system of the brain. Br J Pharmacol Chemother. 1959 Sep;14:340–349. doi: 10.1111/j.1476-5381.1959.tb00254.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BRILL H., PATTON R. E. Analysis of 1955-1956 population fall in New York State mental hospitals in first year of large-scale use of tranquilizing drugs. Am J Psychiatry. 1957 Dec;114(6):509–517. doi: 10.1176/ajp.114.6.509. [DOI] [PubMed] [Google Scholar]
- BRODIE B. B., TOMICH E. G., KUNTZMAN R., SHORE P. A. On the mechanism of action of reserpine: effect of reserpine on capacity of tissues to bind serotonin. J Pharmacol Exp Ther. 1957 Apr;119(4):461–467. [PubMed] [Google Scholar]
- Baar H. S. The Enumeration of Blood Platelets. J Clin Pathol. 1948 May;1(3):175–176. [PMC free article] [PubMed] [Google Scholar]
- CARLSSON A., SHORE P. A., BRODIE B. B. Release of serotonin from blood platelets by reserpine in vitro. J Pharmacol Exp Ther. 1957 Jul;120(3):334–339. [PubMed] [Google Scholar]
- 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]
- DOMENJOZ R., THEOBALD W. [On the pharmacology of tofranil (N-(3-dimethylaminopropyl)-iminodibenzyl hydrochloride]. Arch Int Pharmacodyn Ther. 1959 Jul 1;120:450–489. [PubMed] [Google Scholar]
- FELDSTEIN A., HOAGLAND H., FREEMAN H. Blood and urinary serotonin and 5-hydroxyindole acetic acid levels in schizophrenic patients and normal subjects. J Nerv Ment Dis. 1959 Jul;129:62–68. doi: 10.1097/00005053-195907000-00007. [DOI] [PubMed] [Google Scholar]
- HARDISTY R. M., STACEY R. S. 5-Hydroxytryptamine in normal human platelets. J Physiol. 1955 Dec 29;130(3):711–720. doi: 10.1113/jphysiol.1955.sp005437. [DOI] [PMC free article] [PubMed] [Google Scholar]
- HIMWICH H. E. Some drugs used in the treatment of mental disorders. Am J Psychiatry. 1959 Feb;115(8):756–759. doi: 10.1176/ajp.115.8.756. [DOI] [PubMed] [Google Scholar]
- HUMPHREY J. H., JAQUES R. The histamine and serotonin content of the platelets and polymorphonuclear leucocytes of various species. J Physiol. 1954 May 28;124(2):305–310. doi: 10.1113/jphysiol.1954.sp005109. [DOI] [PMC free article] [PubMed] [Google Scholar]
- KIELHOLZ P., BATTEGAY R. Behandlung depressiver Zustandsbilder, Unterspezieller Berücksichtigung von Tofranil, einem neuen Antidepressivum. Schweiz Med Wochenschr. 1958 Aug 2;88(31):763–767. [PubMed] [Google Scholar]
- KUHN R. Uber die Behandlung depressiver Zustände mit einem Iminodibenzylderivat (G 22355). Schweiz Med Wochenschr. 1957 Aug 31;87(35-36):1135–1140. [PubMed] [Google Scholar]
- MORSDORF K., BODE H. H. Zur Beeinflussung der permeabilitätssteigernden Wirkung des Serotonins durch verschiedenartige Pharmaka. Arch Int Pharmacodyn Ther. 1959 Feb 1;118(3-4):292–297. [PubMed] [Google Scholar]
- PARE C. M., SANDLER M. Acute hepatic necrosis following iproniazid therapy; value of glutamic-oxaloacetic transaminase estimation in early detection. Lancet. 1959 Feb 7;1(7067):282–284. doi: 10.1016/s0140-6736(59)90206-5. [DOI] [PubMed] [Google Scholar]
- PLETSCHER A., BERNSTEIN A. Increase of 5-hydroxytryptamine in blood platelets by isopropyl-isonicotinic acid hydrazide. Nature. 1958 Apr 19;181(4616):1133–1134. doi: 10.1038/1811133a0. [DOI] [PubMed] [Google Scholar]
- UDENFRIEND S., BOGDANSKI D. F., WEISSBACH H. Fluorescence characteristics of 5-hydroxytryptamine (serotonin). Science. 1955 Nov 18;122(3177):972–973. doi: 10.1126/science.122.3177.972. [DOI] [PubMed] [Google Scholar]
- UDENFRIEND S., WEISSBACH H., CLARK C. T. The estimation of 5-hydroxytryptamine (serotonin) in biological tissues. J Biol Chem. 1955 Jul;215(1):337–344. [PubMed] [Google Scholar]
- WEINER M., UDENFRIEND S. Relationship of platelet serotonin to disturbances of clotting and hemostasis. Circulation. 1957 Mar;15(3):353–357. doi: 10.1161/01.cir.15.3.353. [DOI] [PubMed] [Google Scholar]