title: Control of Arthus tonsillitis by the administration of an antiplasminic agent.
abstract: Previous reports have shown that fibrinolytic activity was increased in the circulatory blood of rabbits with Arthus tonsillitis. In this study, t-AMCHA was administered intravenously to rabbits, in order to clarify its role as an antiplasminic agent in the control of Arthus tonsillitis. First, to establish the proper method of administration of t-AMCHA and the quantity to be administered, a preliminary estimation was made of the requisite concentration of t-AMCHA in the circulating blood and tonsillar tissue. Then macroscopic observations and histopathological studies were performed on the tonsils of rabbits with Arthus tonsillitis after t-AMCHA administration at various doses. Finally, after injection of the antiplasminic agent, estimations were made of the plasma fibrinolytic activity in the blood of the rabbits under study. It was decided that administration of t-AMCHA at 3-hourly intervals could maintain a constant concentration of the substance in the tonsillar tissue. The marked hyperaemia and bleeding which were observed macroscopically and histopathologically at 1-2 days after the onset of tonsillitis, disappeared from the parenchyma of the tonsils and pharyngeal tissue surrounding the tonsils in the group receiving regular injections of t-AMCHA at 3-hourly intervals. After estimating certain parameters of the fibrinolytic system in the blood, it was found that fibrinolytic activity decreased and whole plasmin was not consumed as a result of the administration of t-AMCHA during the early stage of tonsillitis. The process of Arthus tonsillitis can thus be controlled by the administration of the antiplasminic agent.
mesh_terms: D000818:Animals; D001183:Arthus Reaction / Q000188:drug therapy*; D003509:Cyclohexanecarboxylic Acids / Q000627:therapeutic use*; D005340:Fibrinogen / Q000032:analysis; D005341:Fibrinolysin / Q000032:analysis; D005342:Fibrinolysis / Q000187:drug effects; D014066:Palatine Tonsil / Q000473:pathology; D011817:Rabbits; D013997:Time Factors; D014069:Tonsillitis / Q000188:drug therapy*; D014148:Tranexamic Acid / Q000032:analysis / Q000627:therapeutic use*
chemical_list: D003509:Cyclohexanecarboxylic Acids; D014148:Tranexamic Acid; D005340:Fibrinogen; D005341:Fibrinolysin