RESUMEN
It is now known that the electric charge of a surface cellular membrane is a rather characteristic value for each type of a cell. Cellular electrophoresis may be used to study the electrokinetic properties of red blood cells in each specific case, thereby obtaining indirect information on the state of a surface membrane as the electrophoretic mobility (EPM) rate is directly proportional to the value of a cellular electric charge. The study was undertaken to compare the EPM rates of peripheral red blood cells from donors, by employing two different preservatives: EDTCHA and sodium citrate. No statistically significant differences were found in the groups under study and these parameters were comparable.
Asunto(s)
Membrana Eritrocítica/química , Conservadores Farmacéuticos/química , Electroforesis/métodos , Humanos , Preservación Biológica/métodosAsunto(s)
Anemia Aplásica/diagnóstico por imagen , Enfermedades de la Médula Ósea/diagnóstico por imagen , Médula Ósea/diagnóstico por imagen , Hígado/diagnóstico por imagen , Pancitopenia/diagnóstico por imagen , Bazo/diagnóstico por imagen , Adolescente , Adulto , Enfermedad Crónica , Coloides , Hepatitis Crónica/diagnóstico por imagen , Humanos , Persona de Mediana Edad , Cintigrafía , TecnecioRESUMEN
Activity of adenosine deaminase (EC 3.5.4.4) was studied in thrombocytes of donors and patients with various hematological diseases. The enzymatic activity was decreased in acute leukemia, chronic myeloleukemia, chronic leukemia and blast transformation myeloma, microspherocytic and hypoplastic anemias. Variable level of the activity was observed in chronic lympholeukemia and non-Hodgkin disease. In all the diseases studied functions of thrombocytes were altered after treatment with various aggregating agents (ADP, thrombin, collagen, adrenaline, ristomycin).
Asunto(s)
Adenosina Desaminasa/sangre , Plaquetas/enzimología , Enfermedades Hematológicas/enzimología , Nucleósido Desaminasas/sangre , Anemia/sangre , Anemia/enzimología , Enfermedades Hematológicas/sangre , Humanos , Trastornos Linfoproliferativos/sangre , Trastornos Linfoproliferativos/enzimología , Trastornos Mieloproliferativos/sangre , Trastornos Mieloproliferativos/enzimología , Agregación PlaquetariaRESUMEN
Activity of purine nucleoside phosphorylase (EC 2.4.2.1) was estimated in thrombocytes of donors and of patients with various hematological diseases. The enzymatic activity was decreased in chronic lymphoid leukosis chronic myeloleukemia, chronic myeloleukemia and blast transformation, acute lymphoblast and myeloblast leukemia, myeloma. Dissimilar level of purine nucleoside phosphorylase activity was found in non-Hodgkin disease. The activity was only slightly increased in Waldenström's macroglobulinemia; it was similar to normal level in hypoplastic and autoimmune hemolytic anemias. A decrease in the enzymatic activity was observed in thrombocytes of the patients with hereditary forms of hemorrhagic diatheses (hemophilia A, Willebrand disease). Normal level of the enzymatic activity was noted in Glanzmann thrombasthenia.
Asunto(s)
Plaquetas/enzimología , Enfermedades Hematológicas/enzimología , Pentosiltransferasa/sangre , Purina-Nucleósido Fosforilasa/sangre , Donantes de Sangre , Enfermedades Hematológicas/genética , Humanos , Leucemia/enzimologíaAsunto(s)
Enfermedades Hematológicas/diagnóstico , Hepatopatías/diagnóstico , Adolescente , Adulto , Anemia/diagnóstico , Anemia Hemolítica/diagnóstico , Anticuerpos/análisis , Enfermedades Autoinmunes/diagnóstico , Trasplante de Médula Ósea , Niño , Femenino , Enfermedades Hematológicas/fisiopatología , Enfermedades Hematológicas/terapia , Hematopoyesis , Hepatitis Viral Humana/diagnóstico , Humanos , Hígado/inmunología , Cirrosis Hepática Alcohólica/diagnóstico , Hepatopatías/fisiopatología , Hepatopatías/terapia , Masculino , Pancitopenia/diagnóstico , Esplenomegalia/diagnóstico , Macroglobulinemia de Waldenström/diagnósticoAsunto(s)
Linfoma/tratamiento farmacológico , Antineoplásicos/administración & dosificación , Ciclofosfamida/administración & dosificación , Evaluación de Medicamentos , Quimioterapia Combinada , Humanos , Compuestos de Mostaza Nitrogenada/administración & dosificación , Prednisolona/administración & dosificación , Factores de TiempoAsunto(s)
Membranas Artificiales , Fenotiazinas , Electroquímica , Liposomas , Propiedades de SuperficieRESUMEN
An inhibitor of adenase, which is absent in leukemic patients, was studied in thrombocytes of healthy persons. The inhibitor, localized in the granular fraction, was isolated by ultracentrifugation in sucrose gradient.
Asunto(s)
Aminohidrolasas/antagonistas & inhibidores , Plaquetas/enzimología , Humanos , Leucemia Linfoide/sangre , Leucemia Linfoide/enzimologíaRESUMEN
An attempt is made to ascertain the mechanism of increased fibrinolytic activity in patients suffering from acute leukemia. Investigations confirmed a possibility of both the primary and the secondary character of hyperfibrinolysis which required the choice of rational therapeutic tactics in each individual case.