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PubMed1975

[Lysozyme in hematologic diseases].

Blood lysozyme estimation seems to be important in hematological practice. Serum levels are roughly proportional to the size of the pool and, above all, granulocytic renewal. Thus levels are increased compared with levels of circulating polynuclear cells. In bone marrow disorders, and particularly in myelofibrosis, owing to the infective granulopoiesis and/or increased destruction of the neutrophil polymorphs. It is lowered in neutropenia with a scanty bone marrow. It provides an important contribution to diagnosis of the type of acute leukemia, the fall in the lymphoblastic forms contrast with normal or increased levels in myeloblastic forms. Finally, there is a marked increase in lysosome urea in acute monocytic or myelomonocytic leukemia.

Anemia↗
PubMed1979

[Determination of serum vitamin B12 in hematologic diseases].

By means of a test set of the Isocommerz (GDR) determinations of vitamin B12 in the serum were carried out according to the principle of the competitive protein binding. The normal values lie between 200 and 1,000 pg/ml serum. Clearly decreased levels of vitamin B12 are found in the pernicious anaemia, in other megaloblastic anaemias and in disturbances of the resorption after resection of the stomach. Increased values can be stated in the untreated chronic myelosis and in the blast episode. Under Busulphan-therapy a significant decrease of the values of vitamin B12 develops. The method seems to be practically important for the well-timed recognition of deficiency conditions of vitamin B12 in beginning pernicious anaemia, in disturbances of intestinal resorption after resection of the stomach and for the observation of the course of the chronic myelosis.

Acute Disease↗
PubMed1975

[Culture of human bone marrow. Counts of colony forming granulocytes and macrophages in 100 patients without hematologic diseases].

Bone marrow suspensions from non hematologic patients have been cultured in methyl cellulose, with conditioned medium prepared with normal peripheral blood cells. The granulocytic-monocytic colony forming cell (G-CFC) can give rise to colonies, which were counted on the 14th day. The mean G-CFC number is 38 +/- 26 when 2.10(5) cells are cultured. The striking disparity from one patient to an other cannot be explained by the culture conditions, nor by the clinical status. There is no sex difference; older patients have a significant reduction of the colony numbers compared to younger patients.

Age Factors↗
PubMed1979

Splenectomy for hematologic disease.

One hundred and thirty splenectomies were performed at the University Hospital in Birmingham for hematologic disorders during a 12 year period. There were seven deaths of which four were related to sepsis in patients with malignant growths which probably impaired immune competence. Splenectomy was found to be uniformly satisfactory for hereditary hemolytic anemia, for hypersplenism complicating rheumatoid arthritis and for the rare instance of primary hypersplenism. Splenectomy was usually salutary in didopathic thrombocytopenic purpura and in antoimmune hemolytic anemia. When done for diagnosis, splenectomy was definitive in about 50 per cent of the instances. Individual patients with thrombotic thrombocyeosinophilia syndrome benefited. Splenectomy for hypoplastic or aplastic anemia in an actual circulation offered only questionable benefit and is rarely necessary for hyperplenism secondary to portal hypertension.

Adult↗