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  • Adrenoleukodystrophy  (2)
  • Analytical Chemistry and Spectroscopy  (2)
  • Lysosomal enzyme  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 1122 (1992), S. 93-98 
    ISSN: 0167-4838
    Keywords: Arylsulfatase ; Lysosomal enzyme ; Post-translational processing ; Protein sequence
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 1159 (1992), S. 243-247 
    ISSN: 0167-4838
    Keywords: Arylsulfatase ; Lysosomal enzyme ; Post-translational processing ; Protein sequence
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1459
    Keywords: Adrenoleukodystrophy ; Adrenomyeloneuropathy ; Fatty acids ; High-performance liquid chromatography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Mittels Hochleistungs-Flüssigkeitschromatographie wurden durch Analyse der Fettsäuren in Sphingomyelien Adrenoleukodystrophien und Adrenomyeloneuropathien untersucht. Die oben erwähnte analytische Methode erwies sich als einfach, empfindlich und exakt. Bei der Adrenoleukodystrophie und bei Patienten mit Adrenomyeloneuropathie wurden sehr lange Fettsäureketten (C26:0, C25:0 und C24:0 auf der Basis von C22:0) sowohl in Plasma und den Erythrozytenmembranen als auch in Gesamtblutproben als vermehrt erkannt. Auch in Kulturen von Hautfibroblasten von Sphingomyelien wurde eine Zunahme der langkettigen Fettsäuren nachgewiesen. In einem Fall eines heterozygoten Adrenoleukodystrophiepatienten wurden Werte die zwischen jenen der homozygoten und der Kontrollfälle lagen gefunden. Somit ist die Hochleistungs-Flüssigkeitschromatographie eine brauchbare Methode, um eine Zunahme langkettiger Fettsäuren zwecks Diagnose einer Adrenoleukodystrophie oder einer Adrenomyeloneuropathie festzustellen.
    Notes: Summary Using high-performance liquid chromatography, adrenoleukodystrophy (ALD) and adrenomyeloneuropathy (AMN) were diagnosed by the analysis of fatty acids in sphingomyelin. The analytical method was simple, sensitive and accurate. In ALD and AMN patients, very long chain fatty acids (C26:0, C25:0 and C24:0 on the base of C22:0) were elevated not only in plasma and erythrocyte membranes but also in whole blood samples. An increase of long chain fatty acids was also shown in sphingomyelin of cultured skin fibroblasts. One heterozygote for ALD showed intermediate values between homozygotes and controls. Thus, high-performance liquid chromatography is a valuable method to detect increased long chain fatty acids for the diagnosis of ALD or AMN.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 233 (1986), S. 306-308 
    ISSN: 1432-1459
    Keywords: Adrenoleukodystrophy ; Beta-galactosidase deficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A patient with adrenoleukodystrophy and his mother, a carrier, showed an elevated ratio of very long-chain fatty acids to long-chain fatty acids and decreased beta-galactosidase activity. Other lysosomal enzyme activities were normal except for the borderline level of arylsulfatase-A activity. However, the father and other patients with variant forms of adrenoleukodystrophy showed normal beta-galactosidase and other lysosomal enzyme activities.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 4 (1990), S. 381-383 
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Studies on combined supercritical-fluid chromatography (SFC) using a packed column, with fast-atom bombardment mass spectrometry (FAB-MS) are described. The interfacing was successfully carried out by simply coupling a frit interface between the liquid chromatograph (LC) and the mass spectrometer. The interface was equipped with a pneumatic splitter and post-column addition device delivering FAB matrix material to a release valve which maintained a constant back-pressure at the column outlet. Using a 1% glycerol solution as a matrix compound in the release valve, the SFC/FAB-MS combination operates as well as a normal LC/MS instrument. The performance was demonstrated with a mixture of α-, β- and γ-tocopherol and Triton X-100 (poly(ethylene glycol) p-isooctylphenyl ether).
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1075-4261
    Keywords: brain microsomal membranes ; fatty acids ; learning behavior ; FTIR ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: We measured the Fourier transform infrared spectra of brain microsomal membranes prepared from rats fed under two dietary oil conditions with and without brightness-discrimination learning tasks: one group fed α-linolenate deficient oil (safflower oil) and the other group fed the sufficient oil (perilla oil) from mothers to offspring. The infrared spectra of microsomes under the two dietary conditions without the learning task showed no significant difference in the range 1000-3000 cm-1. Only after the learning task were the infrared spectral differences noted between the microsomal membranes from both groups. Spectral differences were observed mainly in the absorption bands of fatty acid ester at around 1730 cm-1 (sn-2 position), those of phosphate and oligosaccharides in the range of 1050-1100 cm-1, and a band at around 1145 cm-1. The infrared band of fatty acid ester at the sn-2 position in the microsomal membrane shifted to a longer wavenumber position in the perilla oil group than in the safflower oil group, suggesting a difference between both groups in hydrogen bonding of the fatty acid ester with water. A band observed at 1055 cm-1 and a small band at around 1145 cm-1 in the second derivative spectrum decreased in intensity in the perilla oil group after learning task. These bands were assigned mainly to the oligosaccharide C - O bond in hydroxyl groups that might interact with some other membrane components. These results suggest changes in hydration of membrane surface and modification in oligosaccharide environment (removal or modification) of microsomes, which may be correlated in part with dietary oil-induced changes in learning performance. © 1997 John Wiley & Sons, Inc. Biospectroscopy 3: 281-290, 1997
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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