| 摘要 |
<p>A composition for promoting coagulation of blood comprising a natural or synthetic RNA, or its fragments or analogs, e.g. peptide nucleic acids, ribozymes or RNA aptamers (collectively (A)), is new. Independent claims are also included for: (1) composition for promoting fibrinolysis or for inhibiting coagulation containing one or more agents (B) that degrade RNA or inhibitory compounds with RNase activity or RNA-complexing capacity; (2) diagnostic process for detecting post-operative hypercoagulative states, complication of pregnancy, tumor status, acute myocardial infarction or sepsis by detecting increased levels of plasma RNA, relative to healthy subjects; and (3) diagnostic agent, containing (A), for qualitative or quantitative determination of the blood coagulation factor VII-activating protein (FSAP) or its proenzyme. ACTIVITY : Antibacterial; Immunosuppressive; Hemostatic; Anticoagulant; Thrombolytic; Cerebroprotective. No biological data given. MECHANISM OF ACTION : Modulating the effects of RNA, released from injured tissue or cells, which is an important initial cofactor in the induction of both extrinsic and intrinsic coagulation pathways; specifically RNA binds to and activates the factor VII-activating protease (FASP). RNA from different sources was added to a turbidimetric coagulation test and the recalcification time (RT) measured. All types of RNA tested significantly reduced RT (no figures given), but pretreatment of RNA with RNase destroyed this effect.</p> |
