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  • Aflatoxins  (1)
  • Endovascular occlusion  (1)
  • Furobenzofuran  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Percutaneous reposition of dislodged coils in the treatment of a vertebral arteriovenous fistula — with CT follow-up (1991)
    Springer
    Neuroradiology 33 (1991), S. 195-199 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Vertebral arteriovenous fistula ; Embolization ; Endovascular occlusion ; Detachable balloon ; CT
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary We report a case of vertebral arteriovenous fistula, in which embolization was complicated by migration of two coils and a partially inflated balloon. In order to relieve compression to the spinal cord, the displaced balloon was punctured percutaneously. For both relieving compression to the spinal cord and obliterating the residual fistula, the dislodged coils in the partially thrombosed epidural venous sinus were removed percutaneously and placed in the fistula, and more coils were implanted in the fistula percutaneously through the needle. CT follow-up half a year later showed complete resolution of compression of the spinal cord and complete recovery from myelopathy was clinically apparent.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00588216
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  • 2
    Digitale Medien
    Digitale Medien
    Influence of trace elements and nitrogen sources on versicolorin production by a mutant strain of Aspergillus parasiticus (1979)
    Springer
    Mycopathologia 69 (1979), S. 161-166 
    Details
    ISSN: 1573-0832
    Schlagwort(e): Aspergillus parasiticus ; Furobenzofuran ; Versicolorin A ; Versicolorin C
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract A mutant strain of Aspergillus parasiticus blocked in aflatoxin biosynthesis accumulates versicolorin A and versicolorin C. The effect of trace elements on the growth and versicolorin production by this strain was studied in a defined medium. The omission of manganese was slightly stimulatory to versicolorin production; when zinc was omitted from the medium, no detectable versicolorins were produced. Experiments on nitrogen sources in a highsucrose medium indicated that fourfold to fivefold increases in versicolorin yields could be obtained by substituting 3 ml/l corn steep liquor or 0.1 M NH4NO3 for the 0.023 M (NH4)2SO3 used previously as the nitrogen source in studies on versicolorin production by this strain. These improved yields will facilitate attempts to accumulate enough versicolorin A and versicolorin C for toxicity and carcinogenicity testing. Chromatographic profiles of mycelial extracts of cultures grown in a defined medium with 0.1 M NH4NO3 as the nitrogen source revealed 2 previously unrecognized compounds. The accumulation of these new metabolites in a mutant blocked in aflatoxin production may indicate that they are biosynthetically related to aflatoxin.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00452829
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  • 3
    Digitale Medien
    Digitale Medien
    Effect of acetone on production of aflatoxins and versicolorin pigments by resting cell cultures of aspergillus parasiticus (1976)
    Springer
    Mycopathologia 58 (1976), S. 9-12 
    Details
    ISSN: 1573-0832
    Schlagwort(e): Aflatoxins ; Versicolorins ; Aspergillus parasiticus
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Abstract Resting cell cultures of Aspergillus parasiticus were grown in medium containing four different concentrations of glucose, with and without acetone. In addition, the effect of different equimolar concentrations of acetone, acetic acid, ethanol, and sodium acetate was compared at two glucose levels. Aflatoxin and versicolorin pigment production increased in resting cell medium containing increasing concentrations of glucose. In the presence of glucose high concentrations of acetone (1.0 and 0.25 M) inhibited secondary biosynthesis and low concentrations of acetone (0.1, 0.025 and 0.01 M) stimulated secondary biosynthesis of aflatoxins and versicolorin pigments.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00493586
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