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  • Articles: DFG German National Licenses  (24)
Source
  • Articles: DFG German National Licenses  (24)
Material
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 10 (1964), S. 159-160 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 22 (1971), S. 277-282 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 23 (1971), S. 47-53 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 23 (1971), S. 176-181 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Studies of delta-aminolaevulic acid (Ala) metabolism during almost physiological conditions (incubation in concentrated crude haemolysate of erythrocytes, steady flow of small quantities of Ala running with an Ala-level of 230 μg%) showed in 19 healthy adults, that non-heme-pathway of Ala somewhat surpasses erythrocytic heme-pathway (52.3 ∶ 47.7%). Hemolytic anemias demonstrate due to enhanced count of reticulocytes (100 to 400‰) a still more enhanced non-heme-pathway (62.6 ∶ 37.4%), which leads to the conclusion, that erythroid cells of bone marrow may use less than about 1/5 of present Ala for heme synthesis. Non-heme-pathway was slight induced in iron deficiency (no significance), but normal in one case of Addisonian anemia. Investigations of inhibition of Ala-pathways under these conditions with proto-, copro- and uroporphyrins I and III, haemoglobin and haemiglobin pointed out only a slight inhibition of Ala-Dehydrase (Ala-D., 30% decrease) and non-heme-pathway of Ala by protoporphyrin (800 μg%) and a moderate significant inhibition of Ala-D. (70% decrease) and non-heme-pathway by haemiglobin (12g%). High rates of coproporphyrinogen-III synthesis in incubations did not point out an inhibition of Al-D. There was no distinct feedback regulation of erythroid heme synthesis on the step of Ala-D. demonstrated with products of heme synthesis investigated in this study.
    Notes: Zusammenfassung Inkubationsstudien des Delta-Aminolävulinsäure (Ala)-Metabolismus unter weitgehend physiologischen Bedingungen (konzentriertes, natives Erythrozytenhämolysat, konstante Zufuhr kleiner Ala-Mengen entsprechend einem Anfangsspiegel von 230 μg%) zeigten bei 19 gesunden Probanden, daß der Ala-Metabolismus außerhalb der Hämsynthese (non-heme-pathway) relativ intensiv ist und die erythrozytäre Ala-Utilisation für die Hämsynthese (heme-pathway) noch etwas übertrifft (52,3 ∶ 47,7%). Im retikulozytenreichen Blut (hämolytische Anämien) war der Anteil des non-hemepathway der Ala noch größer (62,6 ∶ 37,4%), so daß in jungen, zur Hämsynthese befähigten Blutzellen die Ala-Utilisation zur Hämsynthese weniger als 1/5 des gesamten Ala-Metabolismus betragen dürfte. Eisenmangel-Anämien ließen eine leichte Zunahme des non-heme-pathway erkennen (nicht signifikant), ein Fall von Perniciosa wies einen normentsprechenden Ala-Metabolismus auf. Hemmversuche unter diesen Inkubationsbedingungen mit Protoporphyrin, Kopro- und Uroporphyrin I und III, Hämoglobin und Hämiglobin ergaben nur eine leichte Hemmung der Ala-Dehydrase (30% Aktivitätsminderung) und des non-hemepathway der Ala durch Protoporphyrin (800 μg%) sowei eine mäßige signifikante Hemmung der Ala-Dehydrase (ca. 70% Aktivitätsminderung) und des non-hemepathway der Ala durch Hämiglobin (12 g%). Hohe endogene Koproporphyrinogen-III-Syntheseraten führten nicht zur Ala-Dehydrase-Hemmung. Eine deutliche Autoregulation der erythrozytären Hämsynthese durch die untersuchten Hämstoffwechselprodukte war auf der Stufe der Ala-Dehydrase nicht nachweisbar.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary New methods were developed for determination of total and direct bilirubin from serum. These methods economize because of their simplicity a lot of chemicals, time and work. For determination of total serum bilirubin by the oxydative reagent chloramin T destroying of bilirubin at the blank sample; photometric measurement of bilirubin absorption band of sample. With a modification of the diazo method only one solution is necessary for determination of direct bilirubin after initial dilution of serum.
    Notes: Zusammenfassung Es wurde eine Methode zur Bestimmung des Gesamtbilirubins entwickelt, die auf der Messung der Bilirubinabsorptionsbande bei 460 nm beruht. Eine neue Modifikation der Diazomethode ermöglicht die Bestimmung des direkten Bilirubins mit nur einer Lösung, die nacheinander Leerprobe und Meßprobe darstellt. Beide Methoden sind in ihrer Einfachheit mit wesentlichen Einsparungen an Reagenzien, Arbeit und Zeit verbunden.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 21 (1970), S. 331-333 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 26 (1973), S. 408-408 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 24 (1972), S. 123-127 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 49 (1971), S. 230-231 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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