Results 261 to 270 of about 527,915 (318)
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Platelet Economy (Platelet Survival and Turnover)*
British Journal of Haematology, 1966Investigators studying blood platelet survival and turnover have used the term ‘thrombo‐kinetics’ to describe the subject, by analogy with the usages of thermodynamics. Inasmuch as these phenomena reflect the interactions and hazards which the platelets encounter while discharging their function in the circulation, we prefer the term ‘platelet economy’
J F, Mustard, H C, Rowsell, E A, Murphy
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Blood Platelets and Platelet Transfusions
Archives of Internal Medicine, 1961The application of quantitative biological and biochemical methods to the study of the blood platelets has led to revolutionary developments in our understanding of these elusive structures. 1 Until recently platelets were often regarded as non-cellular in nature, although it has long been known that they are of cellular origin.
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2013
Platelet counting is a daily basic hematological analysis of crucial interest in many clinical situations. Historical manual techniques (phase-contrast microscopy) have been replaced by automated techniques (impedance or optical analyzers) more rapid and precise.
Salignac, Sylvain +3 more
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Platelet counting is a daily basic hematological analysis of crucial interest in many clinical situations. Historical manual techniques (phase-contrast microscopy) have been replaced by automated techniques (impedance or optical analyzers) more rapid and precise.
Salignac, Sylvain +3 more
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Platelets and platelet disorders in Africa
Baillière's Clinical Haematology, 1992Blood platelets, which are known to play important roles in normal vertebrate biology, are influenced by a variety of factors, the majority of which are acquired. In this chapter, attention is drawn to the need to re-examine one of the old accepted values in haematology, the normal platelet count.
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Biological Trace Element Research, 1988
Blood and its main components are commonly used to detect states of selenium deficiency. In order to examine whether human platelets are able to provide better or additional information, improvements of the analytical method resulted in surprisingly narrow normal ranges for selenium and other mineral elements using neutron activation analysis (NAA) and
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Blood and its main components are commonly used to detect states of selenium deficiency. In order to examine whether human platelets are able to provide better or additional information, improvements of the analytical method resulted in surprisingly narrow normal ranges for selenium and other mineral elements using neutron activation analysis (NAA) and
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Vox Sanguinis, 1992
An immune response to human platelet antigens (HPA), as in neonatal alloimmune thrombocytopenia (NAIT) and post-transfusion purpura (PTP), is the exception rather than the rule and evidence is accumulating for the importance of human leucocyte antigen (HLA) class II restriction in this situation.
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An immune response to human platelet antigens (HPA), as in neonatal alloimmune thrombocytopenia (NAIT) and post-transfusion purpura (PTP), is the exception rather than the rule and evidence is accumulating for the importance of human leucocyte antigen (HLA) class II restriction in this situation.
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Platelet calmodulin correlates with platelet turnover
European Journal of Haematology, 1990Abstract: We measured the calmodulin content in platelets in 13 normal persons and in 62 patients with hematological diseases. The level of platelet calmodulin was higher in patients with idiopathic thrombocytopenic purpura (ITP), systemic lupus erythematosus, myeloproliferative disorders, acute leukemia in a recovery phase, aplastic anemia ...
N, Endoh +4 more
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Platelet Formation, Platelet Density and Platelet Ageing
1990Microscopic examination of both platelets and megakaryocytes shows them to vary widely in size and ultrastructure. This structural diversity was noted by early investigators (Bunting 1909) and interest in its origin and significance has continued to the present day.
K. G. Chamberlain +2 more
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Platelet substitutes and novel platelet products
Expert Opinion on Investigational Drugs, 2000Despite many advances in the safety, processing and storage of conventional 22 degrees C liquid-stored allogeneic platelet concentrates, there are still significant drawbacks to standard platelet concentrates used in transfusions for patients with thrombocytopenia.
D H, Lee, M A, Blajchman
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Platelet Aggregometry and Anti-Platelet Isoantibodies
Pathophysiology of Haemostasis and Thrombosis, 1975102 sera from polytransfused patients have been screened in platelet aggregometry. Anti-human platelet isoantibodies, tested against ‘responsive’ human platelets in PRP, give in the aggregometer a decrease in optical density recorded as a sigmoidal curve.
E, Pogliani +5 more
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