protamine :

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  • n  a simple protein found in fish sperm; rich in arginine; simpler in composition than globulin or albumin; counteracts the anticoagulant effect of heparin

  • The substance which slows insulin's reaction in the blood is a protamine derived from the sperm of the handsome, hardy rainbow trout.
  • They used two drugs which worked equally well: toluidine blue, a tissue stain, and protamine sulfate, a protein compound.
  • But before it got back into the patient, where the clotting factor was necessary once more, the doctors gave it another injection, this time of protamine, to counteract the .

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