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  • Chemotherapy  (2)
  • Blood pressure  (1)
  • Chronic glomerulonephritis  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 151 (1992), S. 384-387 
    ISSN: 1432-1076
    Keywords: Renal Fanconi syndrome ; Ifosfamide ; Nephrotoxicity ; Chemotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two patients developed renal Fanconi syndrome (RFS) after intensive long-term chemotherapy for metastatic Ewing sarcoma and disseminated neuroblastoma. Whereas RFS was diagnosed in patient 1 before he developed osteomalacia, patient 2 experienced severe rickets and growth retardation. Renal function studies revealed slight glomerular impairment and severe tubular defects leading to increased excretion of glucose, amino acids, inorganic phosphate and low molecular weight proteins, indicating proximal tubular damage. Patient 2 additionally showed distal tubular dysfunction with acidosis and diminished concentrating capacity. Renal biopsy in patient 1 revealed marked proximal tubular defects without interstitial lymphocytic infiltration. In both patients renal damage could most likely be ascribed to previous ifosfamide (IFOS) therapy. Our patients showed no improvement in renal function after cessation of IFOS treatment, indicating a poor prognosis of once established RFS after IFOS therapy. Measurement of tubular reabsorption capacities provides exact information on the extent of tubular toxicity induced by IFOS and may be used to monitor IFOS treated patients.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Keywords: Myocardial infarction ; Hodgkin's disease ; Radiation therapy ; Chemotherapy ; Splenectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Among a total of 2147 patients admitted to our hospital for acute myocardial infarction between 1978 and 1987, three young patients aged 24, 29, and 39 years had previously been treated for Hodgkin's disease. Staging laparotomy, including splenectomy, had been performed in all three patients. Two patients had both mediastinal irradiation (21 and 27 months before infarction) and chemotherapy. In the first patient, postmortem histologic examination of the coronary arteries revealed fibrotic changes, which were probably induced by radiotherapy. In our second patient, myocardial infarction developed 5 days after vinblastine treatment; early angiography showed thrombotic occlusion of the proximal right coronary artery, which was recanalized using the diagnostic Sones catheter. Subsequent angiography revealed normal coronary arteries. This is, to our knowledge, the first case of documented coronary artery thrombosis after treatment with vinca-alkaloids. In our third patient, neither mediastinal irradiation nor chemotherapy had been performed prior to myocardial infarction. However, a marked increase in platelet counts following splenectomy was observed in this patient. The role of radiotherapy, chemotherapy, and splenectomy with consecutive thrombocytosis as a third possible pathogenic factor for subsequent development of myocardial infarction is discussed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Volume depletion ; Renovascular hypertension ; Renin-angiotensin-system ; Blood pressure ; Prostaglandins ; Extrazelluläre Volumenrestriktion ; Renovasculäre Hypertonie ; Renin-Angiotensin-System ; Blutdruck ; Prostaglandine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei normotensiven und renal hypertensiven Ratten, die kochsalzarm oder kochsalznormal ernährt wurden, wurde der Effekt des Cyclooxygenasehemmers Indomethacin (3,4 mg/kg/24 h) auf den systolischen Blutdruck und die Plasma-Renin-Aktivität untersucht. Indometacin reduzierte die Plasma-Renin-Aktivität in kochsalzarm und kochsalznormal ernährten, normotensiven und hypertensiven Tieren. Darüberhinaus erniedrigte Indomethacin den systolischen Blutdruck in salz-arm ernährten Ratten, erhöhte jedoch den Blutdruck in salz-normal ernährten Tieren. Diese Befunde lassen vermuten, daß der Effekt von Indomethacin auf den Blutdruck von Ratten vom Extrazellulärvolumen und der Plasma-Renin-Aktivität abhängt.
    Notes: Summary The effect of the cyclooxygenase inhibitor indomethacin (3.4 mg/kg/24 hr) on systolic blood pressure (PB) and plasma-renin-activity (PRA) was evaluated in normotensive and renovascular hypertensive rats receiving either a normal or low salt diet. Indomethacin reduced PRA in normal and hypertensive animals on both low and normal salt intake. Indomethacin furthermore, decreased BP in animals on low sodium diet but increased PB in sodium repleted rats. These data suggest that the effect of indomethacin on rat BP may depend on the state of extracellular volume and PRA.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 63 (1985), S. 967-977 
    ISSN: 1432-1440
    Keywords: Drug treatment ; Chronic glomerulonephritis ; Prospective controlled therapeutic trials ; Medikamentöse Behandlung ; Chronische Glomerulonephritis ; Prospektive kontrollierte Therapiestudien
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Pathogenese und Mechanismen der Progression chronischer Glomerulonephritiden (GN) sind bisher nicht geklärt. Dennoch gibt es erfolgversprechende, prospektive, kontrollierte Therapie-Studien sowie neue Therapie-Ansätze. So wurden beispielsweise Patienten mit idiopathischermembranöser GN monatlich mit Chlorambucil (0,2 mg/kg/Tag) oder Prednison (0,6 mg/kg/Tag) im Wechsel über sechs Monate behandelt. Im Vergleich zu den unbehandelten zeigte sich bei den behandelten Patienten innerhalb von drei Jahren ein günstiger Verlauf der Nierenfunktionsparameter. In einer anderen Studie erhielten Patienten mitmembrano-proliferativer GN Typ I über ein Jahr täglich 975 mg Aspirin und 225 mg Dipyridamol. Bei den behandelten trat im Gegensatz zu den nichtbehandelten Patienten eine Stabilisierung der Nierenfunktion und eine Normalisierung der vorher beschleunigten Thrombozyten-Überlebensrate ein. In einer weiteren kontrollierten Therapie-Studie wurde gezeigt, daß die Langzeit-Prognose derdiffus-proliferativen Lupus-Nephritis (Typ IV WHO) besser ist, wenn eine kombinierte Behandlung mit Cyclophosphamid (100 mg/Tag) und Prednison (30 mg/Tag) über mehrere Monate erfolgt als eine alleinige Prednison-Behandlung (40 mg/Tag). Dagegen gibt es bisher bei einigen Formen der chronischen GN, z.B. derIgA-Nephritis, noch keine Evidenz für eine Therapie, die den Verlauf der Nephritis entscheidend beeinflussen kann. Neuere Therapie-Ansätze, wie die Gabe von Cyclophosphamid (über drei Monate) oder von Cyclosporin A beiglomerulärer Minimal-Läsion mit steroid-abhängigem nephrotischen Syndrom, werden in Therapie-Studien überprüft. Einige kontrolliert durchgeführte Untersuchungen weisen darauf hin, daß die Progression der chronischen GN durch eine Diät mit geringem Proteingehalt günstig beeinflußt werden kann. Der Einfluß von Eicosanoiden und deren Inhibitoren auf den Verlauf chronischer GN, speziell der glomerulären Sklerosierung, ist bisher noch nicht ausreichend untersucht worden. Insgesamt ist eine Entwicklung zu einer zunehmend differenzierten medikamentösen Behandlung der chronischen GN festzustellen, die generell durch die Bereitschaft zu einem aktiven therapeutischen Vorgehen unterstützt werden sollte.
    Notes: Summary This paper sets out the arguments for drug treatment of chronic glomerulonephritides (GN). Although the pathogenesis and mechanism of progression of chronic GN remained to be clarified, on the basis of controlled studies performed to date, there is a strong case to be made for an aggressive treatment approach to this disease spectrum. For instance, in patients with idiopathicmembranous glomerulonephritis a six months treatment with chlorambucil (0.2 mg/KG/day) or prednisone (0.6 mg/KG/day) each given once a day over a period of three months has recently been shown to improve the outcome of the renal functional parameters after three years follow up. In another controlled trial a daily dose of 225 mg dipyridamole and 975 mg aspirin given over 12 months in patients withmembrano-proliferative GN type I has been reported to normalize the increased platelet consumption rate and to stabilize the glomerular filtration rate. A third trial has demonstrated that the combined use of cyclophosphamide (100 mg/day) and prednisone (30 mg/day) over several months was superior to the use of prednisone alone (40 mg/day) in improving the long-term prognosis ofdiffuse-proliferative lupus nephritis (type IV, WHO). In some entities, however, as in IgA-nephritis there is still no evidence for a specific treatment improving the course of the chronic glomerular disease. Other therapeutic problems have to be solved: thus, in patients withminimal change nephropathy with a steroid dependent nephrotic syndrome the benefit of cyclophosphamide (given over three months) or of cyclosporin A is still being investigated. Furthermore, there is some evidence that progression of chronic GN, particularly that of glomerular sclerosing, can be prevented by a low protein diet. The role of eicosanoides and their inhibitors in this context has not yet been fully investigated. The different drug trials and new therapeutic concepts indicate a rapid development of chronic GN treatment. Therefore, a failure to treat actively is difficult to understand.
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