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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 57 (1979), S. 285-291 
    ISSN: 1432-1440
    Keywords: Proteinuria ; Glycoproteinuria ; Newborns ; SDS-polyacrylamide gel electrophoresis ; Proteinurie ; Glykoproteinurie ; Neugeborene ; SDS-Polyacrylamidelektrophorese
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Mit Hilfe der SDS-Polyacrylamid-elektrophorese wurde eine molekulargewichtsbezogene Analyse der physiologischen Protein- und Glykoproteinurie Neugeborener an einem größeren Kollektiv durchgeführt und mit der Proteinausscheidung älterer Kinder verglichen. Wir beobachteten im ersten 24-h Urin nach der Geburt eine vermehrte Ausscheidung von Albumin, von hochmolekularen (MG≧150000 dt) und von niedermolekularen (MG〈Albumin, 68000 dt) Proteinen. Nach einer Lebenswoche trat der Anteil niedermolekularer Proteine an der Gesamtausscheidung stark in den Vordergrund, da die verstärkte Ausscheidung von Albumin und von Proteinen mit einem MG≧150000 dt beträchtlich abnehm. Zum Vergleich dienten 24-h Urine von Kindern mit 2 1/2–15 Lebensjahren, die ein typisches, altersunabhängiges Verteilungsmuster der ausgeschiedenen Uroproteine aufwiesen. Wir deuten diese Befunde als Ausdruck einer transitorischen Unreife des glomerulären Filters und des tubulären Reabsorptionssystems der Neugeborenenniere, wobei sich die tubuläre Funktion erst zu einem späteren Zeitpunkt normalisiert als die glomeruläre Filtration.
    Notes: Summary The physiological protein and glycoprotein excretions in the urine samples of a larger group of newborn infants were separated according to the molecular weights by SDS polyacrylamide gel electrophoresis and compared with the protein excretions of older children. We found higher proportions of albumin, of high molecular weight (MW=molecular weight≧150 000 dt) and of lower molecular weight (MW〈albumin 6800 dt) proteins in the first 24-h urine samples after birth. One week after birth the low molecular weight proteins predominated because there was a substantial decrease in the excretion of albumin and of high molecular weight proteins (MW≧150000 dt). We compared the patterns of protein excretion of the newborn infants with those of children aged from 2 1/2 to 15 years. These urines samples showed a typical pattern of protein excretion not correlated to the age. These findings express a transitory immaturity of the glomerular filter and of the tubular protein reabsorbing system of the newborn kidney. Apparently, the tubular protein handling normalizes later than the glomerular filtration of proteins.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 148 (1988), S. 132-135 
    ISSN: 1432-1076
    Keywords: Menkes syndrome ; Genetic heterogeneity ; Copper therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Six patients with Menkes syndrome are described, who differ from patients with the classical form of Menkes syndrome because of their longer survival; some of them also exhibited a milder manifestation of symptoms. Based on the present data and a summary of seven case reports describing Menkes patients with long survival, it may be possible to divide these patients into two subgroups:one group of severely affected patients with long survival and another group of very mildly affected patients with late onset of symptoms. Perhaps only the latter represents a true subgroup of Menkes syndrome. The possible benefits of copper therapy are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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