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  • 3H-8-MOP time activity curves  (1)
  • ;Advance directives  (1)
  • 1
    ISSN: 1432-055X
    Keywords: Schlüsselwörter Behandlungseinwilligung ; Stellvertreterentscheidungen in Gesundheitsfragen ; Betreuungsrecht ; Epidemiologisch-pragmatische Probleme ; Patientenverfügungen ; Ethik in der Medizin ; Key words Informed consent ; Surrogate decision-making in health care ; Durable power of attorney ; Epidemiologic and pragmatic problems ; ;Advance directives ; Medical ethics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Except in emergencies, the medical treatment of incompetent patients also has to be based upon an informed consent between the physician and a legitimated legal representative (durable power of attorney). Consequently, the German ‘Betreuungsrecht’ advices persons to designate in advance such a proxy or surrogate. However, an additional court-decision is demanded, if a medical measure poses significant risks for the future health or the life of the incompetent patient. On the base of the available epidemiologic data we illustrate that neither our medical nor our legal system could realistically cope with the practical consequences of this legislation: The vast majority of our present decisions in such cases is not covered by a legally valid informed consent, which implies possible forensic consequences. This article provides relevant clinical and legal advice on how to protect the legitimate interests of all concerned within the present framework, which should urgently be revised.
    Notes: Zusammenfassung Elektive Heileingriffe bei nicht-einwilligungsfähigen Patienten bedürfen einer rechtswirksamen Einwilligung, die im Allgemeinen bei einem hierzu ausdrücklich legitimierten Stellvertreter einzuholen ist. Daher empfiehlt auch das deutsche Betreuungsrecht, durch eine Vorausverfügung einen Betreuer oder Vorsorgebevollmächtigten für den Fall der eigenen Einwilligungsunfähigkeit zu benennen. Zusätzlich wird jedoch auch eine vormundschaftsgerichtliche Genehmigung gefordert, wenn “die begründete Gefahr besteht, dass der Betreute aufgrund der Maßnahme stirbt oder einen schweren und länger dauernden gesundheitlichen Schaden erleidet”. Auf Grundlage der verfügbaren epidemiologischen Daten belegen wir, dass diese gesetzliche Vorgabe weder im Bereich der Justizverwaltungen und Gerichte noch der Medizin praktisch realisierbar ist: Die große Mehrheit entsprechender Therapieentscheidungen ist daher in Deutschland derzeit nicht durch rechtswirksame Einwilligungen gedeckt – mit potentiell weitreichenden forensischen Konsequenzen. Dieser Artikel gibt klinische und juristische Hinweise, wie die legitimen Interessen aller Beteiligten derzeit am ehesten gewahrt werden können. Die momentane Rechtslage sollte dringend reformiert werden.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 273 (1982), S. 71-84 
    ISSN: 1432-069X
    Keywords: 3H-8-MOP ; DNA-RNA protein activity ; 3H-8-MOP time activity curves ; Rat organs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Tritiated 8-methoxypsoralen was given perorally to rats in amounts corresponding to therapeutic human doses. The rats were exposed to UVA light or kept in darkness. None of the fractions (apart from 3H2O from the lens) examined changed their level of radioactivity under the influence of UVA light. Time-radioactivity curves were recorded for the skin, lens, residual eye, and the liver. Four fractions were measured: 3H2O, soluble pool, DNA-RNA, and protein. Tritiated water appeared already 1 h after ingestion, and attained maximum value 9–24 h after ingestion, indicating the efficiency with which the liver degrades 8-MOP. 3H-8-MOP and metabolites could be detected in the soluble pool in maximum amounts 2–3 h after the administration. Pretreatment with trypsin increased the concentration of 3H-8-MOP and metabolites; the origin of this extra radioactivity was the protein fraction. The 3H-8-MOP binding to DNA or RNA was studied by pretreatments of the homogenates with DNase or RNase followed by measurement of radioactivity in the TCA extracts. This indicated that no measurable amount of 3H-8-MOP had been bound to DNA or RNA. We conclude that 8-MOP administered to rats in amounts corresponding to human therapeutic doses does not bind to DNA or RNA in measurable amounts either after UV-light or in darkness. The experiments have shown proteins to be the main binding site in rat organs.
    Type of Medium: Electronic Resource
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