摘要:
Methods are disclosed for determining a level of endothelial disease in a subject. The methods comprise examining circulating endothelial cells from the subject for the presence of one or more coagulation factors and correlating an amount of circulating endothelial cells exhibiting one or more coagulation factors with the level of endothelial disease in the subject. Anti-coagulation factor therapy can then be administered to the subject to address the endothelial disease.
摘要:
Methods for identifying patients with anemia, distinguishing thalassemia-trait anemia from iron-deficiency anemia, and identifying pre-anemic patients several weeks before anemia becomes clinically detectable. Also, methods for detecting blood doping in athletes and for optimizing therapy with erythropoiesis stimulating agents or iron supplementation. Computer-readable storage devices and systems, e.g., for use in the described methods.
摘要:
The present invention relates to a method for dynamically determining the structural profile of a fibrin clot, reflecting the stability thereof in a biological sample of a patient, said method comprising the following steps: a) mixing the undiluted biological sample with tissue factor or a mixture of tissue factor and tissue plasminogen activator; b) incubating the mixture obtained in step a), then adding calcium ions to the mixture obtained, in order to initiate the formation of a fibrin clot; c) measuring the turbidity or the optical density of the clot being formed in step b), at at least two wavelengths of between 450 nm and 850 nm, and for a time of between 1 and 35 minutes; d) determining the structural profile of the analysed clot, expressed as a number of protofibrils, density and radius in c) by means of the formula τ.λ 5 = A [Fg].(λ 2 - B), wherein τ is the turbidity of the clot at a given wavelength λ, [Fg] is the initial weight concentration of fibrinogen, and A and B are coefficients which are proportional, respectively, to the density and the radius of the fibres that make up the clot; and e) comparing the obtained profile with a control. The method preferably includes a step f) that makes it possible to predict the risk of bleeding, thrombosis or rethrombosis and to select the anticoagulant that is best suited to the clinical situation of a patient.
摘要:
Disclosed is a blood sample analyzing method including preparing a measurement specimen by mixing a blood sample with a measuring reagent of fibrin and a fibrinogen degradation product (FDP); acquiring, based on a time-dependent change in optical information obtained by optically measuring the measurement specimen, first information indicating an FDP concentration and second information indicating a curving degree of a time course curve showing the time-dependent change of the optical information; and determining an enhanced fibrinolytic state of the blood sample or acquiring a value related to a D dimer of the blood sample based on the first information and the second information.
摘要:
If an air bubble is entrained when a reagent is added to a sample, disturbance caused by this air bubble may prevent accurate optical measurement, thereby reducing accuracy for measuring blood clotting ability. The position to dispense the reagent depends on accuracy of stopping a reagent dispensing mechanism and dimensional errors of individual detectors, and thus conventional reagent discharging method may entrain an air bubble because a distance between a nozzle for dispensing the reagent and an inner wall of a reaction vessel is not constant and conditions for dispensing the reagent to the sample vary each time. In the present invention, an automatic analyzer with a nozzle for sucking and discharging the reagent for blood clotting reaction is provided with a dispensing mechanism that keeps a constant position for the nozzle to discharge the reagent by pressing the nozzle against the inner wall of the reaction vessel within the elastic range.
摘要:
A sample testing cartridge is usable to perform a variety of tests on a viscoelastic sample, such hemostasis testing on a whole blood or blood component sample. The cartridge includes a sample processing portion that is in fluid communication with a sample retention structure. A suspension, such as a beam, arm, cantilever or similar structure supports or suspends the sample retention portion relative to the sample processing portion in a unitary structure. In this manner, the sample retention portion may be placed into dynamic excitation responsive to excitation of the cartridge and correspondingly dynamic, resonant excitation of the sample contained within the sample retention portion, while the sample processing portion remains fixed. Observation of the excited sample yields data indicative of hemostasis. The data may correspond to hemostasis parameters such as time to initial clot formation, rate of clot formation, maximum clot strength and degree of clot lysis.
摘要:
Perfusion device for the dynamic analysis of the thrombotic-ischemic and hemorrhagic pathology, comprising at least one micro-channel (54) able to be connected to a circuit (13) and in which a fluid is able to flow, such as a biological fluid, like blood or other hematic fluids, whether they are animal or human fluids and mixtures of said fluids with additive substances, or a non- biological fluid, and in which at least one reactive substrate is present, intended for the analysis to be carried out, such as a cytoadhesive substrate, in order to simulate a damaged vasal surface and to reproduce hemostasis phenomena and processes. The perfusion chamber is made of a material which allows the optical acquisition in fluorescence light and/or in visible light of images or videos of the flow of fluid inside the at least one micro-channel (54).
摘要:
The present invention relates to an anti-FDP monoclonal antibody selected from the first, second and third monoclonal antibodies having different reactivity towards FDP. The present invention also relates to a reagent and reagent kit for the measurement of FDP and a method for measurement of FDP using the anti-FDP monoclonal antibodies.
摘要:
The present invention relates to the use of a soluble P-selectin polypeptide, or to an inducer of P-selectin activity, for the preparation of a medicament for the treatment of a vasculature-associated disease, such as a tumor, in a subject.