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opsonin

NOUN
  1. an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes

How To Use opsonin In A Sentence

  • Complement molecules can function as opsonins in the recognition of bacterial pathogens and in their elimination by phagocytosis of the bound complexes.
  • The three most important of the antibodies referred to which can be demonstrated with a certain amount of facility are agglutinin, opsonin and bacteriolysin; and the methods of testing for these bodies will now be considered. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.
  • I call opsonin, goes on in the system by ups and downs -- Nature being always rhythmical, you know -- and that what the inoculation does is to stimulate the ups or downs, as the case may be. The Doctor's Dilemma
  • A mixture of opsonins adhere to the bacterium and facilitate ingestion by alveolar macrophages.
  • In the case of the latter animal the serum [v. 03 p. 0180] contains an opsonin which leads to phagocytosis of the bacillus, and the latter is then destroyed by the leucocytes. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
  • Wright, who has been largely responsible for developing this argument, insists on the subordinate role of the white corpuscles that follow blindly the opsonin lead. Ilya Mechnikov - Nobel Lecture
  • To inject a vaccine into a patient without first testing his opsonin is as near murder as a respectable practitioner can get. The Doctor's Dilemma
  • This, as already pointed out, depends upon the increase of opsonins, though it is also to be noted that in many infective conditions there is another factor present, namely a leucocytosis, that is, an increase of the leucocytes in the blood, and the defensive powers of the body are thereby increased. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"
  • The "opsonin," or "relish," is something exuded into or produced in the blood fluid when the attacking microbe arrives. More Science From an Easy Chair
  • In the investigations on the opsonins and bacteriotropins, investigations guided by humoral notions, on the whole only the power of the blood fluid to favour phagocytosis is regarded. Ilya Mechnikov - Nobel Lecture
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