Publications by authors named "U HACKENBERG"

Case Report: A 69-year-old woman with splenic marginal-zone lymphoma was admitted with progressive abdominal pain and splenomegaly as the suspected cause of pain. Rituximab treatment (375 mg/m) had been initiated on the day of admission. Abdominal computerized tomography revealed splenic infarction.

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Background: High-dose therapy (HDT) with autologous blood stem cell transplantation (ASCT) has become the therapy of choice for patients with specific hematologic neoplasms. Although pancytopenia after HDT with stem cell support is of relatively short duration, complications may be severe and life-threatening. In unselected patients with hematologic and solid tumor malignancies, only few data have been published regarding complications.

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The urinary excretion of nicotine and its metabolites in noninduced and Aroclor-induced male and female rats has been determined following intravenous administration of 2'-[14C]-labeled S-nicotine at a dose of 4.6 mumol/kg. Complete recovery of the administered radioactivity was achieved: 95% in urine and 4% in feces over 96 h and 1% remaining in the body.

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Smoke condensates derived from three cigarette types of identical blend to which 0, 1 and 3% cocoa powder was added to the filler were assayed on mice by chronic dermal application (skin painting). For each cigarette type, three condensate doses were applied: 60, 90 and 125 mg dry condensate/mouse/week. The results obtained in this study do not provide evidence that the biological activity of the condensates, as indicated by the occurrence of non-tumorous and tumorous lesions, is enhanced by the addition of cocoa.

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The genotoxic effects of cyclophosphamide (CPP), a human and animal carcinogen requiring metabolic activation, were studied in bone marrow cells of mice and Chinese hamsters, analyzing chromosome abnormalities (CA) and sister-chromatid exchange (SCE) after a 2-h inhalation or a single intraperitoneal administration. In order to compare the genotoxicity after the different routes of administration in the dose range of 10-110 mg CPP/kg body weight, the systemic dose obtained by inhalation was calculated from blood concentrations and the inhalation duration after an analysis of the CPP blood kinetics. In NMRI mice the frequency of bone marrow cells with chromosome abnormalities was higher after aerosol exposure than after intraperitoneal administration of comparable CPP doses.

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