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  • 1
    ISSN: 1432-0428
    Keywords: Calcium ; EDTA ; glucose tolerance ; insulin ; uraemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of calcium infusion on the intravenous glucose tolerance was tested in hypocalcaemic patients suffering from renal insufficiency. It was shown that the delayed glucose disappearance rate in uraemics could be improved (p 〈 0.005) by the infusion of calcium gluconolactobionate despite the fact that the serum concentrations of potassium, urea nitrogen, and the blood pH were not altered. The basal insulin concentration was significantly depressed by the calcium infusion (p 〈 0.02). The serum calcium concentration was significantly correlated to the glucose assimilation coefficient in the uraemic patients (p 〈 0.01). — 3 hypocalcaemic patients without renal failure had a normal glucose tolerance and a normalization of the serum calcium concentration had no discernable effect. — A slight but significant decrease of the serum calcium concentration (p 〈 0.01) by EDTA-Na2 in normocalcaemic patients did not change the intravenous glucose tolerance. — It is concluded that hypocalcaemia may be one of the causes for the abnormal glucose tolerance in chronic renal failure.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0428
    Keywords: Key words ; Glucose ; fructose ; insulin ; isolated fat cells ; re-esterification of free fatty acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In isolated human fat cells of the greater omentum and the mammary gland, the effect of glucose, fructose, and/or insulin was tested on the re-esterification rate of FFA measured by the balance method. It could be shown that in the absence of glucose no re-esterification activity was demonstrable. Glucose alone or fructose alone stimulated the re-esterification of FFA dose-dependently in isolated fat cells of the greater omentum, and to a minor degree in fat cells of the mammary gland. Insulin had no effect on the re-esterification rate of FFA in the presence or absence of glucose or fructose, whereas it significantly stimulated the incorporation of glucose-C into CO2 and lipids. It is concluded that the re-esterification of FFA in human adipose tissue, at least in vitro, is mainly controlled by glucose without need for insulin.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Surface markers ; Acute lymphoblastic leukemia ; Oberflächenmarker ; Lymphoblastenleukämien
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 47 Patienten mit unreifzelliger lymphatischer Leukämie wurden die mononukleären Zellen des peripheren Blutes, in einigen Fällen auch lymphatische Zellen des Knochenmarkes, hinsichtlich ihrer Membranmarker untersucht. Folgende Marker wurden verwendet: die Rosettenbildung mit Schaferythrozyten, der Nachweis von Oberflächenimmunglobulinen, des Fc-Rezeptors sowie des Komplementrezeptors. Bei 6 der 23 unbehandelten Patienten bildete der Großteil der Blasten Spontanrosetten mit Schaferythrozyten (T-ALL), bei zwei dieser 6 Patienten waren am Großteil der Lymphoblasten auch Komplementrezeptoren nachweisbar. Bei einem weiteren Patienten waren an den Lymphoblasten sowohl Fc- als auch Komplementrezeptoren vorhanden. 16 der 23 Patienten waren Marker negativ (O-ALL). Wurden die beiden Gruppen — eine mit Markern, eine ohne Marker — hinsichtlich ihres klinischen Bildes und Verlaufes verglichen, so zeigte sich, daß die Marker positiven Leukämien fast durchwegs dem männlichen Geschlecht angehörten und häufig einen Mediastinaltumor entwickelten. Ferner lag die Remissionsrate in dieser Gruppe deutlich niedriger als in der Gruppe der Marker negativen Leukämien. Bei 24 Patienten in Remission, die durchwegs unter zytostatischer Erhaltungstherapie standen, waren sowohl die Rosetten-bildenden Lymphozyten als auch die Lymphozyten mit Oberflächenimmunglobulinen und Fc-Rezeptoren vermindert. Der Anteil an Rosetten-bildenden Lymphozyten korrelierte mit dem klinischen Verlauf insoferne, als bei Patienten mit schlechtem klinischen Verlauf diese Verminderung ausgeprägter war als bei Patienten mit günstigem Verlauf.
    Notes: Summary In 47 patients with acute lymphoblastic leukemia surface markers were evaluated on mononuclear cells of the peripheral blood as well as in some cases on bone marrow lymphocytes. The lymphocytes were characterized by their binding capacity for sheep red blood cells, the demonstration of Fc-receptors, complement receptors as well as surface immunoglobulins. In 6 of 23 untreated patients the blasts bound sheep red blood cells spontaneously (T-ALL), in two of these six cases the lymphoblasts had simultaneously receptors for complement. In a further patients the lymphoblasts had complement- and Fc-receptors. The blasts of 16 of 23 patients were negative in respect to the markers tested (O-ALL). By comparing two groups of patients—one with positive cells, one unreactive—the clinical features differed: the marker positive group showed a predominance of male patients, 5 of 7 patients had a massive mediastinal mass and the remission rate was lower than in the group with positive blasts. 24 patients in remission under maintance treatment had a decreased percentage of rosette forming lymphocytes as well as lymphocytes with surface immunoglobulins and Fc-receptors. There existed some correlation between the percentage of rosette forming lymphocytes and the clinical course: patients with complications had lower percentages of rosette forming lymphocytes than patients with a favourable course.
    Type of Medium: Electronic Resource
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