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  • 1
    ISSN: 1432-0878
    Keywords: Key words: Urothelium ; Tartrate-resistant acid phosphatase ; Nitric oxide synthase I ; Superoxide dismutase ; Immunocytochemistry ; Free radicals ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Three enzymes, viz., tartrate-resistant acid phosphatase (TRAP), nitric oxide synthase I (NOS-I), and superoxide dismutase (SOD), involved in the production and metabolism of free radicals or radical equivalents, were demonstrated by immunocytochemistry in the urothelium of the ureters of six patients of various ages. Two of these enzymes (TRAP and NOS-I) were colocalized in the most apical and lateral border of the superficial cells of the urothelium. In contrast, SOD showed a patchy or granular distribution within the supranuclear region of these cells. Intra- and subepithelial macrophages exhibited a weak TRAP, but no NOS-I or SOD, immune reaction. On the basis of the immunocytochemical findings, arguments in favor of a cytotoxic function of the superficial cells of the human urothelium are presented.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    ISSN: 1434-3932
    Keywords: Schlüsselwörter Blutungsneigung ; Hämorrhagische Diathese ; Erworbene und angeborene Thrombopathien ; Plasmatische Gerinnungstörungen ; DDAVP ; Key words Bleeding tendency ; Hemorrhagic diathesis ; Acquired and congenital qualitative platelet disorders ; Blood coagulation disorders ; Deamino-d-arginine vasopressin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract In surgical procedures associated with high blood loss, such as vascular and cardiac operations, differential diagnosis and therapy of perioperative hemorrhage are of special importance. Preoperative screening for patients at high risk of bleeding and in particular for those with qualitative platelet disorders [drug-induced platelet disorders (in particular ASS), von Willebrand's disease and other congenital platelet disorders] is effective in minimizing blood loss. Bleeding in acute medical emergencies or during emergency operations may require treatment without specific investigations being performed in advance. Therefore, simple schemes are essential for the rapid management of acute hemostatic problems. The aim of this paper was to address the diagnostic and therapy of hemorrhagic diathesis focusing mainly on diagnosis and therapy of hemorrhagic diathesis due to blood platelet disorders and blood coagulation disorders and preoperative identification of patients at increased risk of bleeding.
    Notes: Zusammenfassung Die Differentialdiagnostik und Therapie von perioperativen Blutungen besitzt in der Gefäß- und Kardiochirurgie bei Eingriffen mit hohen Blutverlusten einen besonderen Stellenwert. So ist es sinnvoll, Patienten mit einem erhöhten Blutungsrisiko bereits präoperativ zu erfassen und adäquat vorzubereiten. Insbesondere die präoperative Erfassung von Thrombopathien [medikamenteninduzierte Thrombopathien (insbesondere durch ASS), von-Willebrand-Jürgens-Syndrom, andere angeborene Thrombopathien] ist bei der Minimierung von Blutverlusten effektiv. Nicht elektive Situationen (Blutung bei Notoperationen, Akutpatienten) müssen oft ohne gezielte hämostaseologische Diagnostik rational therapiert werden. Einfache Schemata sind für ein schnelles Handeln unabdingbar. In dieser Arbeit soll versucht werden, Hinweise zu Diagnostik und Therapie der hämorrhagischen Diathese mit den Schwerpunkten: Diagnostik und Therapie der thrombozytär bedingten hämorrhagischen Diathese und Diagnostik und Therapie der plasmatisch bedingten hämorrhagischen Diathese aus hämostaseologisch-transfusionsmedizinischer Sicht zu vermitteln. Ein für den Routinebetrieb auf chirurgischen Stationen anwendbares Schema zur präoperativen Erfassung von Patienten mit erhöhtem Blutungsrisiko sowie erste Erfahrungen damit werden vorgestellt.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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