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  • Peripheral blood flow  (2)
  • Chemistry  (1)
  • Erwachsenenhämoglobin  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Influence of 2,3-diphosphoglycerate on the rate of oxidation of hemoglobin to methemoglobin (1973)
    Springer
    Journal of molecular medicine 51 (1973), S. 93-94 
    Details
    ISSN: 1432-1440
    Schlagwort(e): 2,3-diphosphoglycerate ; potassium ferricyanide ; adult hemoglobin ; cord blood hemoglobin ; oxidation rate ; methemoglobin ; 2,3-Diphosphoglycerat ; Kaliumferricyanid ; Erwachsenenhämoglobin ; Nabelschnurhämoglobin ; Oxydationsgeschwindigkeit ; Methämoglobin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung 2,3-Diphosphoglycerat, das die Desoxykonfiguration des Hämoglobins begünstigt, beschleunigt die Oxydation des Hämoglobins zu Methämoglobin durch Kaliumferricyanid in Hämolysaten aus Erwachsenen- und Nabelschnurblut. Die Hämoglobinoxydation wird in Nabelschnurhämolysaten weniger beschleunigt.
    Notizen: Summary 2,3-diphosphoglycerate, favoring the deoxyconfiguration of the hemoglobin molecule, accelerates the oxidation of hemoglobin to methemoglobin by potassiumferricyanide both in hemolysates from adult and cord blood. Hemoglobin oxidation is less enhanced in cord blood hemolysates.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01467764
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  • 2
    Digitale Medien
    Digitale Medien
    Peripheral circulation in the newborn: Interaction of peripheral blood flow, blood pressure, blood volume, and blood viscosity (1978)
    Springer
    European journal of pediatrics 129 (1978), S. 73-81 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Blood pressure ; Blood viscosity ; Blood volume ; Newborn infants ; Peripheral blood flow ; Peripheral resistance ; Premature infants ; Respiratory distress
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Peripheral blood flow and systolic blood pressure (strain-gauge plethysmograph), blood volume (Evans blue) and whole blood viscosity (cone-plate viscometer) have been measured in 66 premature and full-term infants 6 to 144h of age. Blood flow and blood volume were moderately decreased in the infants with respiratory distress. Highly significant (P〈0.001) correlations were found betwen blood flow and blood volume (r=0.77), blood pressure and blood volume (r=0.50), peripheral resistance and blood volume (r=-0.44), blood flow and blood pressure (r=0.50), blood flow and peripheral resistance (r=-0.67), peripheral resistance and blood viscosity (r=0.45), and blood viscosity and haematocrit (r=0.86). There was no correlation between peripheral blood flow and blood viscosity. However, at given blood volume, peripheral blood flow decreased with increasing blood viscosity. These results indicate that in newborn infants peripheral blood flow, blood pressure and peripheral resistance are influenced by blood volume, but also depend on blood viscosity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00442366
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  • 3
    Digitale Medien
    Digitale Medien
    Capillary-venous hematocrit differences in newborn infants (1977)
    Springer
    European journal of pediatrics 127 (1977), S. 9-14 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Newborn infants ; Blood pressure ; Hematocrit ; Blood volume ; Acid-base status ; Red cell mass ; Peripheral blood flow
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Venous and capillary hematocrit, acid base values, and circulatory parameters were measured simultaneously in 92 newborn infants within six hours of birth. Gestational age ranged from 26 to 41 weeks. The capillary/ venous hematocrit ratio (Hctc/Hctv) was greater than 1.00 in 89 infants. We found significant inverse correlations between Hctc/Hctv and several parameters, such as pH (r=-0.82), standard bicarbonate (r=-0.73), systolic blood pressure (r=-0.51), and peripheral blood flow (r=-0.70). Most of the infants with a Hctc/Hctv of 1.20 and above had red cell mass values of less than 35 ml/kg. However, blood volume apparently did not influence the Hctc/Hctv. Gestational age appeared to affect Hctc/Hctv only before 30 weeks, when compared with the Hctc/Hctv of term infants. Our results indicate that disturbed circulation, and in particular, disturbed microcirculation, is involved in the development of high Hctc/Hctv ratios. We strongly advise that hematocrits obtained by skin prick from a sick newborn infant should not be relied on as they may give misleading information on oxygen carrying capacity to vital organs.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00465560
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  • 4
    Digitale Medien
    Digitale Medien
    Die krankmachende Bedeutung von Hämoglobin-Anomalien (1963)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 75 (1963), S. 383-383 
    Details
    ISSN: 0044-8249
    Schlagwort(e): Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/ange.19630750836
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