The pharmacology of recombinant hirudin, a new anticoagulant. 1990

B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
Department of Pharmacology, University of the Orange Free State, Bloemfontein.

A new anticoagulant, recombinant hirudin, was given to healthy volunteers (5 per test dose) in single intravenous doses of 0.01, 0.02, 0.04, 0.07 and 0.1 mg/kg to study its anticoagulant effects, how it was tolerated and its pharmacokinetics. Hirudin proved to be a potent anticoagulant with important effects on thrombin (increase in thrombin time and partial thromboplastin time). The maximum pharmacodynamic effect was achieved with the 0.07 mg/kg dose, and upwards. All doses of the compound were tolerated without side-effects. The mean elimination half-life is about 1 hour. Mean total clearance and volume of distribution are approximately 190 ml/min and 14 l, respectively. Hirudin obeys first-order pharmacokinetics.

UI MeSH Term Description Entries
D008297 Male Males
D010314 Partial Thromboplastin Time The time required for the appearance of FIBRIN strands following the mixing of PLASMA with phospholipid platelet substitute (e.g., crude cephalins, soybean phosphatides). It is a test of the intrinsic pathway (factors VIII, IX, XI, and XII) and the common pathway (fibrinogen, prothrombin, factors V and X) of BLOOD COAGULATION. It is used as a screening test and to monitor HEPARIN therapy. Activated Partial Thromboplastin Time,Cephalin-Kaolin Coagulation Time,Kaolin-Cephalin Coagulation Time,Thromboplastin Time, Partial,Coagulation Time, Cephalin-Kaolin,Cephalin Kaolin Coagulation Time,Coagulation Time, Cephalin Kaolin,Coagulation Time, Kaolin-Cephalin,Kaolin Cephalin Coagulation Time
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D005069 Evaluation Studies as Topic Works about studies that determine the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. Critique,Evaluation Indexes,Evaluation Methodology,Evaluation Report,Evaluation Research,Methodology, Evaluation,Pre-Post Tests,Qualitative Evaluation,Quantitative Evaluation,Theoretical Effectiveness,Use-Effectiveness,Critiques,Effectiveness, Theoretical,Evaluation Methodologies,Evaluation Reports,Evaluation, Qualitative,Evaluation, Quantitative,Evaluations, Qualitative,Evaluations, Quantitative,Indexes, Evaluation,Methodologies, Evaluation,Pre Post Tests,Pre-Post Test,Qualitative Evaluations,Quantitative Evaluations,Report, Evaluation,Reports, Evaluation,Research, Evaluation,Test, Pre-Post,Tests, Pre-Post,Use Effectiveness
D006629 Hirudins Single-chain polypeptides of about 65 amino acids (7 kDa) from LEECHES that have a neutral hydrophobic N terminus, an acidic hydrophilic C terminus, and a compact, hydrophobic core region. Recombinant hirudins lack tyr-63 sulfation and are referred to as 'desulfato-hirudins'. They form a stable non-covalent complex with ALPHA-THROMBIN, thereby abolishing its ability to cleave FIBRINOGEN. Hirudin
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013918 Thrombin Time Clotting time of PLASMA mixed with a THROMBIN solution. It is a measure of the conversion of FIBRINOGEN to FIBRIN, which is prolonged by AFIBRINOGENEMIA, abnormal fibrinogen, or the presence of inhibitory substances, e.g., fibrin-fibrinogen degradation products, or HEPARIN. BATROXOBIN, a thrombin-like enzyme unaffected by the presence of heparin, may be used in place of thrombin. Reptilase Time,Reptilase Times,Thrombin Times,Time, Reptilase,Time, Thrombin,Times, Reptilase,Times, Thrombin

Related Publications

B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
February 1998, Kidney international. Supplement,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
October 2002, Seminars in thrombosis and hemostasis,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
January 1989, Folia haematologica (Leipzig, Germany : 1928),
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
January 1991, Haemostasis,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
April 1991, Seminars in thrombosis and hemostasis,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
February 1991, Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosis,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
December 2000, Anesthesiology,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
September 1995, Current opinion in hematology,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
June 1994, Kidney international,
B H Meyer, and H G Luus, and F O Müller, and P N Badenhorst, and H J Röthig
December 2021, Thrombosis research,
Copied contents to your clipboard!