摘要:
The invention relates to synthetic peptides which have amino acid sequences which correspond, in whole or in part, to the amino acid sequence of prothrombin and are antigenic, to the use thereof for the immunization of an animal and for the purification of specific antibodies, to antibodies against these peptides, and to the use of the antibodies for the determination of the fragments F.sub.2 /F.sub.1+2.
摘要翻译:本发明涉及具有氨基酸序列的合成肽,其全部或部分对应于凝血酶原的氨基酸序列并且具有抗原性,其用于免疫动物和用于纯化特异性抗体, 针对这些肽的抗体,以及抗体用于测定片段F2 / F1 + 2的用途。
摘要:
The present invention relates to a process for separating and purifying proteases and antiproteases. This process is characterized in that there are placed in contact an insoluble cross-linked polymer including in its chain the group --SO.sub.3 R.sub.1 -- and/or the group --SO.sub.2 R.sub.2 -- in which R.sub.1 denotes a hydrogen atom or metal and R.sub.2 denotes the remainder of an amino acid linked to the --SO.sub.2 -- bridge through its amine --NH--, function, with the solution containing proteases and antiproteases or their complex; separating the polymer which has absorbed the desired protein, washing it carefully with the buffer, desorbing the absorbed protein by a solution of a polycationic compound in the case of T or by an albumin solution in the case of AT or of the complex T-AT, and isolating the protein, if desired, by known means, such as, especially, freeze drying. The invention is useful for studying the mechanism of blood coagulation.
摘要:
An aqueous solution containing thrombin is heated in the presence of at least one stabilizer selected from various sugars to thereby inactivate viruses possibly contaminating said thrombin. According to this process, the inactivation of the contaminating viruses can be achieved while stably maintaining the thrombin. The stabilizing effect of this process can be further enhanced by using an amino acid as a stabilizer in combination with the sugar.
摘要:
Novel tetradecapeptides having the following sequence were found to have potent mitogenic activity for machropage-like cells:H-Tyr-Pro-Pro-X-Asn-Lys-Asn-Phe-Thr-Glu-Asn-Asp-Leu-Leu-OH,wherein X=Trp or Tyr, or the physiologically acceptable salts, esters or amides thereof.
摘要:
Aqueous solutions of activated prothrombin complex concentrate are disclosed which have a F-VIII correctional activity of from about one to 35 units per ml. and an NAPT time of from about 27 to 70 seconds per ml. The compositions are used to treat blood clotting factor inhibitors.
摘要:
A hemostatic agent and method for preparation thereof are described, said hemostatic agent comprising a carrier in the shape of flake or fiber having thrombin and Factor XIII fixed thereto, wherein said carrier is composed of a biodegradable material having a water absorption capability of about 50 weight percent or more, said flake has a longer dimension of about 5000 microns or less, a shorter dimension of about 3000 microns or less, and a thickness of about 2000 microns or less, and said fiber has a single yarn fineness of about 30 deniers or less and a yarn length of about 10 mm or less.
摘要:
The present invention provides a stabilized thrombin preparation in solid or dissolved form, especially for analytical purposes, containing, as a stabilizer, serum albumin together with at least one protease inhibitor and at least one chelate former.
摘要:
A composition comprising about from 37 to 190 units of factor VII/ml and about from 25 to 80 units of factor VIIa/ml is administered to patients in the treatment of clotting factor inhibitors. The composition may include activated and unactivated clotting factors such as factors IX, IXa, Xa and X.
摘要:
Compositions including, in units/ml, factor VIII correctional activity, about from 2-35; prothrombin, about from 1-10; thrombin, less than about 0.003; factor VII, about from 37-190; factor VIIa, about from 8-80; total factor IX, about from 15-112; factor IX precursor, 0 to about 30; factor X, about from 1-30; and factor Xa, about from 1-10 are used in therapeutically effective amounts to treat blood clotting factor inhibitors.
摘要:
The present invention relates to a method for making fibrinogen, a prothrombin complex containing the coagulation factors II, VII, IX and X that can contain antithrombin III, antithrombin III and a solution of stable serum proteins from a blood plasma stabilized with citrate which is characterized in that from the plasma, by adsorption on colloidal silica of a specific surface of 50 to 400 m.sup.2 /g and a concentration of 50 to 400 mg per g plasma protein, fibrinogen is isolated; and in that thereupon (a) citrate and calcium ions are removed by ultrafiltration or dialysis and then from the protein solution, over anion exchangers or tricalcium phosphate that adsorb proteins, the coagulation factors II, VII, IX and X and antithrombin III are adsorbed, or (b) the coagulation factors II, VII, IX and X are adsorbed prior to the ultrafiltration or dialysis, antithrombin III then not being simultaneously adsorbed, and antithrombin III is adsorbed on the said adsorbents after the removal of the citrate and calcium ions by ultrafiltration or dialysis; and in that thereupon from the remaining plasma fluid further unstable proteins are removed by another adsorption on colloidal silica and a solution of stable serum proteins is obtained.