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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 55 (1977), S. 141-144 
    ISSN: 1432-1440
    Keywords: Oculo-cerebro-renales Syndrom (Lowe) ; Katarakt ; Fetus ; Oculo-cerebro-renal syndrome (Lowe) ; Cataract ; Fetus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A high-risk pregnancy for X-linked recessive inherited Lowe's syndrome was terminated due to a male karyotype in the cultured amniotic fluid cells. The eyes of the male fetus showed specific cataracteous changes of the lens. A posterior lenticonus was due to a defect of the lens capsule. The lenses were of normal size. Loss of lens material through a lens capsule defect could account for the small discoid lens usually seen in Lowe's syndrome. Amino acids in amniotic fluid had normal concentrations except lysine and proline which were markedly elevated.
    Notes: Zusammenfassung Bei einer Schwangeren, die bereits einen Jungen mit Lowe-Syndrom hat, wurde eine Amniocentese durchgeführt. Die Schwangerschaft wurde unterbrochen, nachdem sich in den kultivierten Zellen der Amnionflüssigkeit ein männlicher Karyotyp zeigte und damit eine Wahrscheinlichkeit von 50% für die Geburt eines weiteren Kindes mit dieser X-chromosomal rezessiv erblichen Erkrankung bestand. Der männliche Fet bot die für das Lowe-Syndrom charakteristischen Linsentrübungen. Es bestand ein Lenticonus posterior mit Defekt der hinteren Linsenkapsel; die bisher bekannte kleine, discoide Linse des Lowe-Syndroms entsteht somit möglicherweise durch Verlust von Linsenmaterial bei defekter hinterer Linsenkapsel. Die Aminosäurenkonzentrationen im Fruchtwasser waren mit Ausnahme von deutlichen Erhöhungen von Lysin und Prolin normal.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 131 (1979), S. 33-41 
    ISSN: 1432-1076
    Keywords: Hyperdibasicaminoaciduria ; Lysinuric protein intolerance ; Loading tests ; Lysine ; Alanine ; Arginine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The first patient of Turkish descent with hyperdibasicaminoaciduria is described. Recurrent diarrhea was observed only during the first three months of life. The infant exhibited low plasma levels of ornithine and arginine. Intestinal absorption of lysine was decreased. Hyperammonemia was noticed only after an i.v. alanine load. It was prevented by addition of arginine.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 144 (1986), S. 563-566 
    ISSN: 1432-1076
    Keywords: Rett syndrome ; Hyperammonemia ; Multiple carboxylases ; Holocarboxylase synthetase ; Biotinidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A patient with Rett syndrome (cerebral atrophy associated with hyperammonemia) was studied. Primary defects of urea cycle enzymes were excluded as causes of the disorder. The analysis of urinary organic acids showed a moderate increase of lactate, methylcitrate, tiglylglycine and 3-hydroxisovalerate, indicating an abnormality of multiple carboxylases. Biotin supplementation reversed the urinary abnormalities. In fibroblasts grown with a low biotin medium propionylCoA and 3-methylcrotonylCoA carboxylase activities were reduced. Holocarboxylase synthetase activity was normal (V max and Km). Surprisingly the biotinidase in fibroblasts was not decreased. The data indicate that some patients with Rett syndrome might suffer from a biotin-dependent defect of unknown nature.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1076
    Keywords: Glycogen storage disease ; Glucose-6-phosphatase ; Glucose-6-phosphate translocase ; Debranching enzyme ; Phosphorylase-6-kinase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A workshop was held on “Aspects of treatment of patients with glycogen storage disease” within the framework of the Concerted Action “Inborn errors of metabolism” of the European Communities. Consensus was reached on the main issues of treatment of patients with deficiency of glucose-6-phosphatase, glucose-6-phosphate translocase, debranching enzyme, liver phosphorylase and phosphorylase-b-kinase. The resulting recommendations are reported.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1076
    Keywords: Intractable diarrhea ; Celiac disease ; Treatment ; Casein hydrolisate ; Amino acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ten infants with intractable diarrhea, celiac disease and small bowel resection were treated with a special dietetic regimen called “Baustein” principle. The three major food constituents were added to the formula stepwise: first glucose and maltodextrin followed by protein and vegetable oil or MCT oil. The protein source was a newly developed casein hydrolisate also containing minerals, trace elements and vitamins.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Infection 3 (1975), S. 61-61 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 238 (1985), S. 350-351 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The kinetic characteristics of galactose-1-phosphate uridyltransferase and galactokinase in cultivated fibroblasts and amniotic fluid cells were investigated. The K m values of galactokinase for galactose at 2.0 mM ATP are 0.34 mM in amniotic fluid cells and 0.48 mM in fibroblasts. The K m values for ATP at 0.5 mM galactose are 1.25 mM and 2.10 mM. Transferase and galactokinase activities and protein content increase logarithmically during the growth of cultivated cells. The specific activity of both enzymes also increases and reaches a maximum level 10–15 days after subculture. The specific activity of transferase increases faster than that of galactokinase in the case of amniotic fluid cells. In the case of fibroblasts the specific activity of galactokinase increases faster than that of transferase.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inherited metabolic disease 1 (1978), S. 159-160 
    ISSN: 1573-2665
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Deficiency of acid 1,4-α-glucosidase (EC 3.2.1.20) is associated with Pompe's disease (McKusick 23230), generalized glycogen storage disease type II. The deficiency of this enzyme has been demonstrated in various human tissues and cultivated cells from patients with Pompe's disease. Prenatal and postnatal diagnosis of this genetic disorder can be established by a simple procedure measuring the enzyme activity even with artificial substrates. However, there remain some questions concerning enzyme characteristics of α-glucosidase in various human tissues and the changes occurring during development.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 331 (1988), S. 202-204 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Zinc and copper metabolism became easier to study after science provided two research ways [1]: Isotope tracer technique and atomic absorption spectroscopy. Using stable isotopes is advantageous in humans because exposure to radioactivity is avoided and therefore the method can be used safely in infants and pregnant women. According to Ehrenkranz et al. [2, 3] zinc absorption in premature infants is 60%. Ziegler and coworkers report a lower absorption of zinc in infants (20%–44%) [8]. The copper intestinal uptake has been reported to be 68% in adults [3, 4]. We have investigated the bioavailability of zinc in a group of premature infants and one term infant weighing 1850 to 5630 g and the copper absorption in a man and an adolescent with M. Wilson (a copper storage disease) and discuss the accurate isotope analysis of human feces in relation to mineral bioavailability studies of premature infants. It is shown that for the determination of bioavailability of zinc and copper, the method of chelate-gas chromatography/mass spectrometry (GC/MS) is valuable for routine application to clinical experiments; the human fecal samples resulting from diet suitably enriched with isotopes68Zn,70Zn or65Cu can be routinely analysed with a precision of about 1% for these stable isotopes [2]. The total zinc in feces was determined by atomic absorption spectroscopy and the70Zn/64Zn ratio by chelate-GC/MS (EI). We have found different absorption values between 3% to 70% for zinc in a group of different infants including twins, triplets and preterms. The copper uptake was determined to be 79.7% and 49.9%.
    Type of Medium: Electronic Resource
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