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  • 1
    ISSN: 1432-2307
    Keywords: Cerebral lesions ; Sulphite oxidase deficiency ; Xanthine oxidase deficiency ; Molybdenum cofactor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of combined deficiency of sulphite-oxidase and xanthine-oxidase with a defect of the molybdenum cofactor, which is vital to the activity of sulphite-, xanthine- and aldehyde-oxidase, is reported here. Seven cases of combined deficiencies have been described with regard to both clinical and laboratory findings. The clinical, laboratory and anatomo-pathological features and, in particular, the central nervous system lesions of the present case correspond exactly to those in the case described Rosenblum in which an isolated deficiency in sulphiteoxidase was present. As the cerebral alterations in the present case are comparable to those described in Rosenblum's case, they probably result from the defect in sulphite-oxidase acitivity.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of assisted reproduction and genetics 5 (1988), S. 225-229 
    ISSN: 1573-7330
    Keywords: oocyte aging ; zona pellucida ; mouse oocytes ; scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a scanning microscopy study of mouse oocytes from immature, young, and aged females and of oocytes agedin vivo orin vitro, we have observed four types of zona pellucida, which we classify as types A, B, C, and D. Oocyte aging gives rise to a significant increase in predegenerative (type C) oocytes; this type of zona pellucida surface could result from a zona hardening effect and decrease the rate of fertilization of the oocytes affected.
    Type of Medium: Electronic Resource
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