An autoantibody that causes lysis of erythrocytes in the presence of complement.

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au·to·he·mo·ly·sin or chiefly Brit au·to·hae·mo·ly·sin .ȯt-ō-.hē-mə-'līs-ən n a hemolysin that acts on the red blood cells of the individual in whose blood it is found

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au·to·he·mol·y·sin (aw″to-he-molґĭ-sin) a hemolysin that causes complement-dependent hemolysis of the patient's own erythrocytes.

Medical dictionary. 2011.

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Look at other dictionaries:

  • autohemolysis — Hemolysis occurring in certain diseases as a result of an autohemolysin. * * * au·to·he·mo·ly·sis or chiefly Brit au·to·hae·mo·ly·sis hi mäl ə səs, .hē mə lī səs n, pl ly·ses .sēz hemolysis of red blood cells by factors in the serum of the person …   Medical dictionary

  • Donath-Landsteiner test — (for paroxysmal cold hemoglobinuria) a test based on the fact that the blood of patients with this disease contains complement dependent iso and autohemolysin (Donath Landsteiner antibody) which unites with red cells only at low temperatures (2°… …   Medical dictionary

  • aut- — combining form or auto Etymology: Greek, from autos; perhaps akin to Latin aut or more at eke 1. a. : self …   Useful english dictionary

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