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  • 1
    ISSN: 1433-0563
    Keywords: Schlüsselwörter Harnblasenkarzinom ; Aromatische Amine ; N-Acetyltransferase-2 ; Histopathologischer Befund ; Prognose ; Key words Bladder cancer ; N-Acetyltransferase 2 ; Histopathological grading ; Invasiveness ; Prognosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A total of 196 patients with urothelial tumours were phenotyped for N-acetyltransferase 2 by the molar ratio of two caffeine metabolites excreted in urine. The proportion of “slow” acetylators, who are genetically predisposed to urothelial tumours if they have been exposed to aromatic amines in the past, in the entire group was 55 %, within the range in a normal population. Among 40 patients with assumed former occupational exposure to aromatic amines, 65 % were “slow” acetylators. Invasiveness, histopathological grading of the urothelial tumour at the time of first diagnosis, and course were not related to acetylator phenotype.
    Notes: Zusammenfassung Bei 196 Patienten mit urothelialen Tumoren wurde der Acetyliererphänotyp mittels zweier im Harn ausgeschiedener Koffeinmetabolite bestimmt. Der Anteil der „langsamen“ Acetylierer, die bei Exposition gegen aromatische Amine hinsichtlich der Entstehung eines Harnblasentumors prädisponiert sind, weicht mit 55 % im Gesamtkollektiv nicht von der Verteilung in der normalen Bevölkerung ab. Personen mit anzunehmender beruflicher Exposition gegen aromatische Amine (n = 40) weisen mit 65 % einen höheren Anteil „langsamer“ Acetylierer auf. Die Ausdehnung des Tumors bei Erstdiagnose, das histopathologische Grading und auch der Verlauf der Harnblasentumore der Klassifikation T1G1 und T1G2 waren unabhängig vom Acetyliererstatus. Der Acetyliererstatus erlaubt somit keine Aussage über die Prognose von Urotheltumoren.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Urological research 1 (1973), S. 88-95 
    ISSN: 1434-0879
    Keywords: Renal transplantation ; allotransplants ; hyperacute rejection ; delayed rejection ; azathioprine ; prednisone ; miniature pigs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Kidney allotransplantation was performed in 15 fully grown miniature pigs, mainly females, and 2 female piglets. In fully grown animals the donor organ was transplanted in the iliac fossa. A different technique was employed in young dwarf pigs; the donor kidney was removed en bloc with a segment of the abdominal aorta and vena cava and was transplanted isotopically in the recipient. Blood group incompatibility is discussed as a cause of failure of pig kidney allotransplants from non-related animals. Between sister animals with similar blood groups kidney transplants could be performed successfully, but transplants between sisters of proven different blood groups did not function. In dwarf pigs hyperacute early rejection must be distinguished from late rejection. Hyperacute early rejection which occurs only a few hours after transplantation in cases of blood group incompatibility between donor and recipient, is due to immunological damage to vascular endothelium, leading to widespread arterial thromboses. Later rejection between sister animals of identical blood group occurs between the 14th and 40th day after transplantation. It is characterised by a large, oedematous kidney with petechial haemorrhages in the parenchyma and microscopically demonstrable changes in the arterial tree.
    Type of Medium: Electronic Resource
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