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  • Analytical Chemistry and Spectroscopy  (1)
  • Dicarboxylic acids  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatsschrift Kinderheilkunde 145 (1997), S. 1282-1285 
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Mukoviszidose ; Hepatopathie ; Reye-Syndrom ; Dikarbonsäuren ; Fettsäuremetabolismus ; Key words Cystic fibrosis ; Hepatopathy ; Reye syndrome ; Dicarboxylic acids ; Fatty acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary An 11 weeks old boy was acutely ill with drowsiness, liver involvement with cholestasis and coagulopathy but normal ammonia levels. Despite repeated dicarboxylic aciduria we could not find enzymatic disorders of fatty acid oxydation. Persistent wheezy bronchitis and steatorrhea finally led to the diagnosis of cystic fibrosis, which was confirmed by sweat chloride test and genetic analysis. With intensive treatment of cystic fibrosis all the pathological findings vanished. Discussion: In conclusion, Reye-like syndromes and dicarboxylic aciduria in infancy may be the first signs of cystic fibrosis.
    Notes: Zusammenfassung Ein 11 Wochen alter Junge erkrankte akut mit Bewußtseinsstörung und Hepatopathie mit Cholestase und Gerinnungsstörung, allerdings normalen Ammoniakwerten. Trotz mehrfach nachgewiesener Dikarbonsäureausscheidung im Urin ließ sich kein Enzymdefekt im Fettsäureabbau nachweisen. Aufgrund einer zunehmenden Atemwegsobstruktion in Verbindung mit Fettstühlen wurde die Diagnose Mukoviszidose vermutet und mittels Schweißtest und Genanalyse bestätigt. Die intensive Therapie der Mukoviszidose führte zur raschen Normalisierung sämtlicher pathologische Befunde. Diskussion: Dieser Fall zeigt, daß bei Reye-ähnlichen Krankheitsbildern und einer Dikarbonsäureausscheidung im Säuglingsalter auch an eine Mukoviszidose gedacht werden muß.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0887-6134
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Dinucleoside monophosphates bearing usual protecting groups at the exocyclic amino functions of the heterocyclic bases, the 5′-hydroxy group, the phosphate moiety and the O-6-position of the guanine ring have been analysed by FAB mass specrometry in the negative ion mode. These non-charged key intermediates for oligodeoxynucleotide synthesis exhibit very simple spectra in the mass range of m/z 400-1500 using tetra-ethylene glycol as matrix. Most of the observed ions could easily be assigned. Apart from deprotonated molecular ions sequence specific ions arising from C-O-P bond cleavage and ions derived from loss of protecting groups were observed. The simplicity of spectra interpretation makes FAB mass spectrometry to a rapid and valuable tool for unambiguous identification of dimeric synthons for oligonucleotide synthesis.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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