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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Rheumatologie 57 (1998), S. 50-52 
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Ochronose ; Alkaptonurie ; Chronische Polyarthritis ; Key words Ochronosis ; alkaptonuria ; rheumatoid arthritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Ochronosis is a rare disorder of tyrosin catabolism with an autosomal, recessive trait. Clinical signs predominantly affect the locomotor system. Inflammatory episodes in large joints can mimick Rheumatoid Arthritis (RA). Brownish discoloration of sclerae and cartilage is characteristic, diagnosis is confirmed by typical changes of spinal X-rays and the finding of homogentisic acid in urine samples. We describe a case of a 53 year old female patient with ochronosis and a second diagnosis of RA.
    Notes: Zusammenfassung Die Ochronose ist eine seltene, autosomal rezessiv vererbte Störung des Tyrosinabbaus. Ihre Symptome manifestieren sich überwiegend am Bewegungsapparat. Entzündungsschübe insbesondere an den großen Gelenken können eine Chronische Polyarthritis (CP) vortäuschen. Charakteristisch sind bräunliche Verfärbungen der Skleren und Knorpel, die Diagnose kann dann durch typische Röntgenveränderungen der Wirbelsäule und den Nachweis von Homogentisinsäure im Urin gesichert werden. Wir beschreiben den Fall einer 53-jährigen Patientin mit Ochronose und einer zusätzlichen CP.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0197-8462
    Keywords: ELF ; ODC ; EMF ; Noise ; embryonic development ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: Previously, we have shown that the application of a weak (4 μT) 60 Hz magnetic field (MF) can alter the magnitudes of the ornithine decarboxylase (ODC) activity peaks which occur during gastrulation and neurulation of chick embryos. We report here the ODC activity of chick embryos which were exposed to the superposition of a weak noise MF over a 60 Hz MF of equal (rms strength). In contrast to the results we obtain with a 60 Hz field alone, the activity of ODC in embryos exposed to the superposition of the incoherent and 60 Hz fields was indistinguishable from the control activity during both gastrulation and neurulation. This result adds to the body of experimental evidence which demonstrates that the superposition of an incoherent field inhibits the response of biological systems to a coherent MF. The observation that a noise field inhibits ODC activity changes is consistent with our speculation that MF-induced ODC activity changes during early development may be related to MF-induced neural tube defects at slightly later stages (which are also inhibited by the superposition of a noise field). Bioelectromagnetics 19:53-56, 1998. © 1998 Wiley-Liss, Inc.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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