. The objective of this project is to continue examination of the processes of blood coagulation and related phenomena with an increasing emphasis on the regulatory role of blood cells and endothelial cells. Our focus will be on regulation of the initial steps of clotting via the intrinsic pathway of thrombin formation, particularly upon control of the activation of Hageman factor (factor XII). Our immediate goal is to elucidate the role of inhibitors of the activation of this clotting factor that are derived from vascular endothelial cells. We will also explore the importance of metallic ions in activation of Hageman factor. These and related projects aim at an understanding of hemorrhagic and thrombolytic states. As always, vigorous attempts will be made to learn more about the physiology of hemostasis and thrombosis through study of suitable patients.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Project (R01)
Project #
5R01HL001661-42
Application #
3334110
Study Section
Hematology Subcommittee 2 (HEM)
Project Start
1975-09-01
Project End
1995-03-31
Budget Start
1993-04-01
Budget End
1994-03-31
Support Year
42
Fiscal Year
1993
Total Cost
Indirect Cost
Name
Case Western Reserve University
Department
Type
Schools of Medicine
DUNS #
077758407
City
Cleveland
State
OH
Country
United States
Zip Code
44106
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Ryder, J; Everson, B; Jentoft, J et al. (1993) The effect of chemical modification of basic amino acid residues on the activation and amidolytic activity of Hageman factor (factor XII). J Lab Clin Med 122:697-702
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Toossi, Z; Sedor, J R; Mettler, M A et al. (1992) Induction of expression of monocyte interleukin 1 by Hageman factor (factor XII). Proc Natl Acad Sci U S A 89:11969-72

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