K. H. Diehl

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The specific thrombin inhibitor r-hirudin (HBW 023) has been demonstrated to be effective in preventing thrombosis in preclinical models. Up to now, no bleeding complications have been observed using therapeutically effective doses in animals studies. However, in case of inadvertent overdosing the occurrence of undesired impairment of coagulation cannot be(More)
The new thrombin inhibitor CRC 220 was characterized in vivo for its antithrombotic effects. CRC 220 led to a dose-dependent prolongation of clotting parameters as determined in rats, rabbits, dogs, sheeps, pigs and monkeys. We evaluated the efficacy of CRC 220 to prevent thrombus formation in arteries and in the microcirculation in different animal models.(More)
Recombinant hirudin and a shortened synthetic analogue, with the amino acid sequence of D-Phe-Pro-Arg-Pro-(Gly)4-Asn-Gly-Asp-Phe-Glu- Glu-Ile-Pro-Glu-Glu-Tyr-Leu, are specific thrombin inhibitors which in a concentration-dependent manner inhibit thrombus formation as well as clot propagation both in vitro and in vivo. In comparison to the analogue, lower(More)
For the manufacture of the PCC Beriplex P/N, nanofiltration was introduced into the production process of Beriplex HS providing an additional means to heat treatment for the clearance/inactivation of viruses. By nanofiltration, large enveloped viruses (HSV-1, HIV-1) were completely eliminated by a factor of more than 7 log10. While medium-sized enveloped(More)
The possibility of reducing the number of animals in sensitization studies (maximization method) is discussed on the basis of results from 20 sensitization tests. It appears that the number of test animals in sensitization studies may be reduced to ten treated animals and five control animals without prejudice to the quality of the test.
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