Activated platelets and impaired platelet function in intensive care patients analyzed by flow cytometry. 1996

T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
Department of Clinical Chemistry, University Hospital, Linköping, Sweden.

Intensive care patients often have disturbances in their coagulation and fibrinolysis systems, which may result in haemorrhage or disseminated intravascular coagulation (DIC). DIC is a dreaded complication that may develop rapidly and has a high mortality rate. Platelets play a central role in haemostasis and it is thus important to have assays that rapidly can monitor platelet activation and platelet function. We have used flow cytometry to measure platelet activation and function in intensive care patients. Fluorescein labelled chicken antibodies were used to detect platelet bound fibrinogen as these antibodies have advantages over mammalian antibodies in flow cytometry. We found increased levels of circulating activated platelets and microparticles in vivo and impaired platelet function after stimulation in vitro. The two patients with the highest percentage of microparticles died shortly after blood sampling.

UI MeSH Term Description Entries
D007362 Intensive Care Units Hospital units providing continuous surveillance and care to acutely ill patients. ICU Intensive Care Units,Intensive Care Unit,Unit, Intensive Care
D010979 Platelet Function Tests Laboratory examination used to monitor and evaluate platelet function in a patient's blood. Function Test, Platelet,Function Tests, Platelet,Platelet Function Test,Test, Platelet Function,Tests, Platelet Function
D004211 Disseminated Intravascular Coagulation A disorder characterized by procoagulant substances entering the general circulation causing a systemic thrombotic process. The activation of the clotting mechanism may arise from any of a number of disorders. A majority of the patients manifest skin lesions, sometimes leading to PURPURA FULMINANS. Consumption Coagulopathy,Coagulation, Disseminated Intravascular,Disseminated Coagulation, Intravascular,Intravascular Coagulation, Disseminated,Intravascular Disseminated Coagulation,Coagulation, Intravascular Disseminated,Coagulations, Disseminated Intravascular,Coagulations, Intravascular Disseminated,Coagulopathies, Consumption,Coagulopathy, Consumption,Consumption Coagulopathies,Disseminated Coagulations, Intravascular,Disseminated Intravascular Coagulations,Intravascular Coagulations, Disseminated,Intravascular Disseminated Coagulations
D005340 Fibrinogen Plasma glycoprotein clotted by thrombin, composed of a dimer of three non-identical pairs of polypeptide chains (alpha, beta, gamma) held together by disulfide bonds. Fibrinogen clotting is a sol-gel change involving complex molecular arrangements: whereas fibrinogen is cleaved by thrombin to form polypeptides A and B, the proteolytic action of other enzymes yields different fibrinogen degradation products. Coagulation Factor I,Factor I,Blood Coagulation Factor I,gamma-Fibrinogen,Factor I, Coagulation,gamma Fibrinogen
D005434 Flow Cytometry Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake. Cytofluorometry, Flow,Cytometry, Flow,Flow Microfluorimetry,Fluorescence-Activated Cell Sorting,Microfluorometry, Flow,Cell Sorting, Fluorescence-Activated,Cell Sortings, Fluorescence-Activated,Cytofluorometries, Flow,Cytometries, Flow,Flow Cytofluorometries,Flow Cytofluorometry,Flow Cytometries,Flow Microfluorometries,Flow Microfluorometry,Fluorescence Activated Cell Sorting,Fluorescence-Activated Cell Sortings,Microfluorimetry, Flow,Microfluorometries, Flow,Sorting, Fluorescence-Activated Cell,Sortings, Fluorescence-Activated Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015539 Platelet Activation A series of progressive, overlapping events, triggered by exposure of the PLATELETS to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug. Activation, Platelet,Activations, Platelet,Platelet Activations
D018805 Sepsis Systemic inflammatory response syndrome with a proven or suspected infectious etiology. When sepsis is associated with organ dysfunction distant from the site of infection, it is called severe sepsis. When sepsis is accompanied by HYPOTENSION despite adequate fluid infusion, it is called SEPTIC SHOCK. Bloodstream Infection,Pyaemia,Pyemia,Pyohemia,Blood Poisoning,Poisoning, Blood,Septicemia,Severe Sepsis,Blood Poisonings,Bloodstream Infections,Infection, Bloodstream,Poisonings, Blood,Pyaemias,Pyemias,Pyohemias,Sepsis, Severe,Septicemias

Related Publications

T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
May 1999, Rinsho byori. The Japanese journal of clinical pathology,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
January 1998, Clinical laboratory science : journal of the American Society for Medical Technology,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
December 2003, Cytometry. Part A : the journal of the International Society for Analytical Cytology,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
July 2000, Methods (San Diego, Calif.),
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
January 2006, Pathophysiology of haemostasis and thrombosis,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
September 2001, Hua xi yi ke da xue xue bao = Journal of West China University of Medical Sciences = Huaxi yike daxue xuebao,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
March 1995, Cytometry,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
September 1994, Veterinary pathology,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
January 1990, Blood cells,
T H Lundahl, and T L Lindahl, and I H Fagerberg, and N Egberg, and A Bunescu, and A Larsson
April 2016, Seminars in thrombosis and hemostasis,
Copied contents to your clipboard!