Effect of levamisole on aggregation of platelets stimulated with compounds associated with the prostaglandin synthetic pathway. 1978

Y Hokama, and A H Morita, and M A Abad, and B S Joyo, and D A Uchida, and G W Fischer

Levamisole, L-2,3,5,6-tetrahydro-6-phenylimidazo-(2,1-b)-thiazole-hydrocholoride at various concentrations (2.5 to 40 microgram) added to platelet rich plasma inhibited aggregation of platelets. The 50% inhibition concentrations (IC50) of levamisole in platelet aggregation induced by hydrogen peroixde (9.4 x 10(-1) mM), epinephrine (1.0 x 10(-1) micrometer), endoperoxide-analog (2.9 x 10(-1) micrometer) and arachidonic acid (3.3 micrometer) were 11.0, 8.0, 11.5 and 16.0 microgram/test, respectively. It is suggested that levamisole like imidazole inhibit platelet aggregation and this factor should be considered in the administration of levamisole, especially in cardiovascular diseases.

UI MeSH Term Description Entries
D007978 Levamisole An antihelminthic drug that has been tried experimentally in rheumatic disorders where it apparently restores the immune response by increasing macrophage chemotaxis and T-lymphocyte function. Paradoxically, this immune enhancement appears to be beneficial in rheumatoid arthritis where dermatitis, leukopenia, and thrombocytopenia, and nausea and vomiting have been reported as side effects. (From Smith and Reynard, Textbook of Pharmacology, 1991, p435-6) L-Tetramisole,Levotetramisole,Decaris,Dekaris,Levamisole Hydrochloride,Solaskil,Hydrochloride, Levamisole
D010974 Platelet Aggregation The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS. Aggregation, Platelet
D011449 Prostaglandin Endoperoxides Precursors in the biosynthesis of prostaglandins and thromboxanes from arachidonic acid. They are physiologically active compounds, having effect on vascular and airway smooth muscles, platelet aggregation, etc. Endoperoxides, Prostaglandin
D011453 Prostaglandins A group of compounds derived from unsaturated 20-carbon fatty acids, primarily arachidonic acid, via the cyclooxygenase pathway. They are extremely potent mediators of a diverse group of physiological processes. Prostaglandin,Prostanoid,Prostanoids
D004347 Drug Interactions The action of a drug that may affect the activity, metabolism, or toxicity of another drug. Drug Interaction,Interaction, Drug,Interactions, Drug
D004837 Epinephrine The active sympathomimetic hormone from the ADRENAL MEDULLA. It stimulates both the alpha- and beta- adrenergic systems, causes systemic VASOCONSTRICTION and gastrointestinal relaxation, stimulates the HEART, and dilates BRONCHI and cerebral vessels. It is used in ASTHMA and CARDIAC FAILURE and to delay absorption of local ANESTHETICS. Adrenaline,4-(1-Hydroxy-2-(methylamino)ethyl)-1,2-benzenediol,Adrenaline Acid Tartrate,Adrenaline Bitartrate,Adrenaline Hydrochloride,Epifrin,Epinephrine Acetate,Epinephrine Bitartrate,Epinephrine Hydrochloride,Epinephrine Hydrogen Tartrate,Epitrate,Lyophrin,Medihaler-Epi,Acetate, Epinephrine
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006861 Hydrogen Peroxide A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials. Hydrogen Peroxide (H2O2),Hydroperoxide,Oxydol,Perhydrol,Superoxol,Peroxide, Hydrogen
D001095 Arachidonic Acids Eicosatetraenoic Acids,Acids, Arachidonic,Acids, Eicosatetraenoic
D013268 Stimulation, Chemical The increase in a measurable parameter of a PHYSIOLOGICAL PROCESS, including cellular, microbial, and plant; immunological, cardiovascular, respiratory, reproductive, urinary, digestive, neural, musculoskeletal, ocular, and skin physiological processes; or METABOLIC PROCESS, including enzymatic and other pharmacological processes, by a drug or other chemical. Chemical Stimulation,Chemical Stimulations,Stimulations, Chemical

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