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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 68 (1990), S. 880-885 
    ISSN: 1432-1440
    Keywords: Wegener's granulomatosis ; Granulomatous giant cell myocarditis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 28-year-old male patient suffering from Wegener's granulomatosis died suddenly with signs of cardiac failure after clinical symptoms had basically subsided under chemotherapy. Autopsy revealed pulmonary granulomata, necrotizing vasculitis of the lungs and kidneys, focal and segmental necrotizing glomerulonephritis, and diffuse granulomatous and necrotizing giant cell myocarditis. Histological confirmation of inflammation of the heart in Wegener's disease has rarely been reported. Although cardiac involvement in Wegener's granulomatosis sometimes is suspected, it is usually thought to have no major impact on the course of the disease. By its dramatic clinical and morphologic presentation this case illustrates that the heart, in addition to the lungs and kidneys, may determine the outcome of the idiopathic granulomatous vasculitis of Wegener.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 58 (1980), S. 935-941 
    ISSN: 1432-1440
    Keywords: Pseudo-lupus-syndrome ; Antimitochondrial antibodies ; Drug induced allergy ; Pyrazolone ; Specific lymphocyte stimulation ; Pseudo-LE-Syndrom ; Antimitochondriale Antikörper ; Pyrazolon ; Medikamentöse Allergie ; Spezifische Lymphozytenstimulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 23 Patienten mit Pseudo-Lupus-Syndrom wurden die antimitochondrialen Antikörper in ihrem Titerverlauf über einen Zeitraum von bis zu 5 Jahren beobachtet. Die während der Akutphase sehr hohen AMA-Titer fielen in den meisten Fällen innerhalb der ersten 6 Monate deutlich ab. Nach Reexposition mit Venopyronum-Dragees (VPD) kam es innerhalb von 3 Tagen zu einem Anstieg der Titer bis auf das 5fache des Ausgangswertes. Das in Venopyronum-Dragees enthaltene Analgetikum Phenopyrazon ist das die Antikörper-Produktion auslösende Agens. Der Beweis dafür wurde durch entsprechende Reexpositionsversuche sowie durch die Stimulation von Patienten-Lymphozyten mit phenopyrazonhaltigen Medikamenten erbracht. Zelluläre Immunreaktionen gegenüber dem Medikament konnten bis zu 6 Monate nach akuter Krankheitsphase nachgewiesen werden, fehlten jedoch in den ersten Wochen nach dem durch das Medikament induzierten Schub. Der Übergang in eine chronische Verlaufsform war bei keinem der 23 Patienten zu beobachten. Ein Rezidiv stand immer im Zusammenhang mit einer Medikamenten-Einnahme. Auch andere pyrazonhaltige Medikamente können ein PLE-Syndrom auslösen.
    Notes: Summary 23 patients with proven pseudolupus-syndrome were observed over a period of five years; titers of specific antimitochondrial antibodies (AMA) were tested in a follow-up study after the last intake of Venopyronum-Dragees (VPD), a drug combination of plant glycosides, horse-chestnut extracts and phenopyrazone. Cellular immune reactions against the eliciting drug, depended on the date of the acute phase and were examined in two patients after reexposure. High titers in the acute phase decreased rapidly in most of the cases within the first six months. After reexposure with VPD, AMA rose within three days up to the five fold compared with the initial titer. Only the analgetic component of VPD, phenopyrazone, was able to induce a significant increase of AMA-titer after reexposure. A specific cellular sensitivity to this substance could be demonstrated by lymphocyte stimulation in the presence of a phenopyrazone containing drug preparation. There was no chronic course of the disease; clinical exazerbation could be observed only after new intake of the drug. The analysis of drug history shows, that other pyrazolone containing drugs may also be able to induce a pseudolupus-syndrome.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1435-1803
    Keywords: ischemia ; reperfusion ; vitamin E ; infarct size ; regionalsystolic shortening
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Thirty pigs were randomly assigned to a blind treatment with vitamin E or placebo. Ten animals each received 0.5g d-alpha tocopherol intravenously before ischemia (group 1) or before reperfusion (group 2). Ten control pigs were treated with a lipid emulsion as placebo. The left anterior descending coronary artery was distally ligated for 45 min followed by 3 days of reperfusion. Infarct size was determined as ratio of infarcted (tetrazolium stain) to ischemic myocardium (dye technique). Regional systolic shortening was assessed by sonomicrometry. Myocardial and plasma concentrations of vitamin E were determined by high-performance liquid chromatography. Global hemodynamic parameters and estimated left ventricular oxygen consumption did not differ among the three groups. Intravenous treatment with vitamin E raised the plasma levels of this vitamin from 1 ± 0.3 mg/l (control group) to 21 ± 6 mg/l before ischemia, to 4 ± 2 mg/l before reperfusion and to 2 ± 0.6 mg/l at the end of the experiments in group 1. In group 2, vitamin E plasma levels increased from 1 ± 0.3 mg/l to 24 ± 13 mg/l before reperfusion and to 2 ± 0.6 mg/l after 3 days of reperfusion. At the end of the experiments, myocardial vitamin E concentrations amounted to 4.2 ± 0.7 ng/mg fresh weight (control group), 9.7 ± 2.1 ng/mg (group 1), and to 8.7 ± 1.4 ng/mg (group 2). The increase in vitamin E plasma concentration was not associated with a cardioprotective effect. Infarct sizes of the three groups (group 1: 68 ± 12%, group 2: 66 ± 15%, control group: 69 ± 8%) were almost identical. Furthermore, recovery of systolic shortening was not improved by the acute vitamin E treatment. Mean systolic shortening of the reperfused segment amounted to 4% in the two treatment groups and 3% in the control group after 3 days of reperfusion. These results suggest that an acute increase in vitamin E plasma concentration before ischemia or during the early phase of reperfusion does not protect the ischemic, reperfused porcine heart.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 343 (1992), S. 62-63 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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