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  • Hepatic lipase  (2)
  • Acute leukemia  (1)
  • Acute lymphoblastic leukemia  (1)
  • 1
    ISSN: 1432-1440
    Keywords: Hepatic lipase ; Lipoproteins ; Hyperlipemia ; Intermediate-density lipoproteins (IDL)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The main lipoprotein density classes, namely very-low-density lipoproteins (VLDL), intermediate-density lipoproteins (IDL), low-density lipoproteins (LDL), high-density lipoproteins2 (HDL2) and HDL3 were investigated with respect to their influence on hepatic lipase (HTGL) activity in vitro. Lipoproteins from pooled normal plasma (NP) and from pooled hyperlipemic plasma (HP) were prepared by means of sequential ultracentrifugation. Hepatic lipase was determined radioenzymatically after preincubation with protamine sulfate. It could be demonstrated that IDL from HP were able to stimulate HTGL activity by approximately 100% above the baseline value. HDL3 from both NP and HP revealed an inhibiting effect on HTGL activity. VLDL, LDL, and HDL2 exhibited no significant effect on HTGL activity. It is speculated that HTGL could possibly represent a second pathophysiological pathway for the catabolism of IDL in hyperlipemia but this presumption is supported by only a few investigations in vivo.
    Type of Medium: Electronic Resource
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  • 2
    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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  • 3
    ISSN: 1432-1440
    Keywords: Liver cirrhosis ; Lipoproteins ; LCAT ; Hepatic lipase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 12 patients with unequivocal post-alcoholic end-stage liver cirrhosis were compared with 12 healthy controls with regard to the plasma concentrations of lipids, lipoproteins (by rate zonal ultra-centrifugation) and apolipoproteins of high-density-lipoproteins (HDL) (by disc electrophoresis), as well as to the activities of lecithin-cholesterol acyltransferase (LCAT) in plasma and of hepatic lipase (HL) in post-heparin plasma. The cirrhotic group showed the following differences (all significant at thep〈0.01 level) from the control group: Total cholesterol, HDL-cholesterol, very-low-density-lipoproteins (VLDL), HDL, and HL were decreased. Intermediate-density-lipoproteins (IDL) were not detectable in the cirrhotic group. Low-density-lipoproteins (LDL) did not differ significantly from controls. However, LDL from cirrhotic patients contained more triglycerides but less esterified and free cholesterol (allp〈0.01). The percentage apolipoprotein composition of HDL did not differ significantly between controls and cirrhotics. Surprisingly, LCAT acivity in plasma as well as the ratios between esterified and free cholesterol in plasma, LDL, and HDL were nearly identical in both groups. It seems likely that LCAT activity decreases only in the states of acute or subacute liver injury or of biliary obstruction. Severe chronic liver damage as in our cases of end-stage liver cirrhosis without any signs of acute liver injury exhibits apparently no defect in cholesterol esterification.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1440
    Keywords: Hepatic candidiasis ; Fluconazole ; Chemotherapy ; Acute leukemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Hepatic candidiasis represents an increasingly difficult problem in immunocompromised patients. It has been recognized as a variant of disseminated candidiasis after a period of neutropenia. Establishment of diagnosis is difficult since liver biopsy as well as culture may be negative, in spite of the presence of fungus. Hepatic lesions are generally not detectable by ultrasound examination or computed tomography until the neutrophil count has returned to normal. The aim of this case report is to describe the problems related to the diagnosis and treatment of hepatic candidiasis following chemotherapy for acute leukemia. The report also provides further evidence that fluconazole, a new broad-spectrum antifungal drug, can be safely and effectively used for the long-term treatment of deep-seated hepatic candidiasis.
    Type of Medium: Electronic Resource
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