نتایج جستجو برای: coagulation factor ix

تعداد نتایج: 893342  

H REZVAN, K MOUSAVI, MH ROOSTAEI, S NASIRI,

In this study, anion-exchange chromatography was used to purify factor VII and factor IX from prothrombin complex (PPSB), which contains coagulation factors II, VII, IX and X. For this purpose, DEAE-Sepharose CL-6B gel , Pharmacia column XK-26 , high flow rate and two stepwise gradients with phosphate citrate buffer were used. The yield of the two lyophylized products, factor VII and factor...

2017
Hassan Mansouri Aliakbar Pourfathollah

Background: Hemophilia B is a bleeding disorder with a recessive X-linked inheritance pattern, in which the infected individuals have low levels of factor IX in their plasma. Affected individuals may have bleeding episodes after trauma or spontaneously considering the plasma level of factor IX. In order to prevent these episodes and to control bleeding, they should use coagulation factor concen...

Introduction: Hemophilia B is an X-linked recessive genetic disease caused by mutations in the coagulation Factor IX gene. Mutations in the Factor IX gene result in dysfunction or deficiency of coagulation factor of IX. Direct mutation analysis involves the ideal method for molecular diagnosis of the disease. However, due to the high number of identified mutations in the gen, the lack of a comm...

Journal: :Blood 1984
D Menache H E Behre C L Orthner H Nunez H D Anderson D C Triantaphyllopoulos D P Kosow

Thrombosis and/or disseminated intravascular coagulation (DIC) are complications specifically associated with the use of factor IX complex in some patients. Assuming that these complications might result from zymogen overload, we have produced, using diethylaminoethyl (DEAE)-Sephadex (Pharmacia, Piscataway, NJ) and sulfated dextran chromatography, a factor IX concentrate (coagulation factor IX)...

A. Zahedmehr, M. Lak R. Sharifian S. Delmaghani S. Zeinali

Background: Hemophilia B is an X-linked recessive coagulation disorder caused by factor IX deficiency.  Analysis of factor IX gene polymorphisms is considered the best approach for prenatal diagnosis and carrier detection of hemophilia B where the identification of gene mutation is not easily possible. Objective: To study the frequency of three factor IX-linked restriction fragment length polym...

2012
Imen Kraiem Samira Hadhri Halima El Omri Raja Sassi Wiem Chaabani Souad Ennabli Hadef Skouri

R a Abstract. Production of factor VIII or factor IX inhibitors is a major complication limiting the efficiency of substitutive therapy in haemophiliacs. Moreover, viral infections, the second serious complication of replacement therapy, may be associated to the occurrence of antiphospholipid antibodies which paradoxically lead to thrombosis. We investigated the prevalence of coagulation inhibi...

Journal: :Blood 1997
H F Lin N Maeda O Smithies D L Straight D W Stafford

Coagulation factor IX deficiency causes hemophilia B in humans. We have used gene targeting to develop a coagulation factor IX-deficient (factor IX-knockout) mouse strain. Mouse embryonic stem (ES) cells were targeted by a socket-containing vector that replaces the promoter through exon 3 of the factor IX gene by neoDeltaHPRT, which is a functional neo gene plus a partially deleted hypoxanthine...

Abstract Background and Objectives Vitamin K-dependent clotting factor deficiency (VKCFD) is usually an acquired problem due to liver disease, malabsorption, and overdose of warfarin.  In the present paper the significance and role of vitamin K-dependent coagulation factors in menorrhagia were evaluated.   Case We present a rare case of 43 year woman with acquired vitamin K deficiency and se...

Journal: :Blood 1988
K J Smith

Thrombosis and transmission of viral diseases are the principal adverse effects of current replacement therapy for factor IX deficiency when using heat-treated concentrates of vitamin K-dependent coagulation factors. More highly purified factor IX preparations could decrease the risk of disease transmission, reduce patient exposure to allogeneic proteins, and reduce the risk of thrombosis. In t...

Journal: :Blood 1982
A H Goodall G Kemble D P O'Brien E Rawlings F Rotblat G C Russell G Janossy E G Tuddenham

A murine hybridoma clone is described that grows continuously in culture and produces a monoclonal antibody we have called Royal Free Monoclonal Antibody to factor IX No. 1 (RFF-IX/1). This has high affinity for a coagulation site on factor IX. RFF-IX/1 immobilised on sepharose can be used to deplete factor IX from normal human plasma. This immunoaffinity depleted plasma is indistinguishable fr...

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