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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 123 (1976), S. 89-109 
    ISSN: 1432-1076
    Keywords: Chondrodysplasia punctata ; Rhizomelic type ; Lethal short-limbed dwarfism ; Chondrodysplasia calcificans congenita ; Epiphyseal dysplasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Pathologic, ultrastructural and radiologic studies are described on 3 infants with the rhizomelic form of chondrodysplasia punctata. Radiologic criteria in the young infant include radiolucent coronal clefts dividing all or most of the thoracic and lumbar vertebral bodies, short humeri with flared metaphyses and punctate calcifications commonly present adjacent to the ossified ischial and pubic bones and less commonly in other locations. In late infancy and childhood the radiologic criteria include demineralization in all bones with slow maturation, flat vertebral bodies, short humeri and femora, metaphyseal flaring, especially in the distal humerus, proximal femur and proximal tibia, immature shape of pelvis, and disappearance of the punctate calcifications with advancing age. The histologic changes of the resting cartilage include areas of degenerating cartilage which had become partially calcified, cystic changes with severe disturbance of the maturation of the cartilage at the physeal plate, and the formation of cancellous bone directly on resting cartilage. Ultrastructural changes are characterized by degeneration of chondrocytes, delicate collagenous fibrils without visible periodicity, and the presence of flocculent material within greatly distended endoplasmic reticulum.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 131 (1979), S. 1-7 
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 114 (1973), S. 259-292 
    ISSN: 1432-1076
    Keywords: Storage disease ; Mucopolysaccharidosis ; Mucolipidosis ; Lysosomes ; Glycolipids ; Sphingolipids ; Mucopolysaccharides ; Lysosomal hydrolases ; Neurodegenerative disorders
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Darstellung der klinischen, pathologischen, elektronenoptischen, histochemischen und biochemischen Untersuchungsergebnisse von 4 Patienten mit “I-cell disease” (Mucolipidose II). Charakteristisch sind das Hurler-ähnliche klinische Erscheinungsbild bei normaler Mucopolysaccharidurie und grobkörnige Einschlüsse in gezüchteten Fibroblasten. Pathohistologisch beeindrucken u. a. ausgeprägte Speicherphänomene in Histiocyten. Bei einem Patienten fanden sich in Lunge und Leber eigenartige Lipoidgranulome. Elektronenoptisch zeigten sich intraplasmatische Membransäcke mit polymorphen, teilweise lamellären Einschlüssen. Histochemisch handelte es sich bei den Speichersubstanzen um Glykosphingolipide und andere kohlenhydrathaltige Substanzen. Biochemisch wurden in der Leber vermehrte Mengen verschiedener Glykosphingolipide nachgewiesen, insbesondere Trihexosid-Ceramid und GM3-Gangliosid. Ein Patient speicherte Sulfatid in Leber und grauer Hirnsubstanz. Der “I-cell disease” liegen multiple Defekte lysosomaler Enzyme vorwiegend in Zellen mesenchymaler Herkunft zugrunde. Sie führen zur intracellulären Anhäufung eines bunten Gemischs von Lipiden und kohlenhydrathaltigen Substanzen, u. a. Mucopolysacchariden. Wahrscheinlich verbergen sich unter dem Begriff der “I-cell disease” (Mucolipidose II) mehrere Krankheitsbilder.
    Notes: Abstract Pathological, histochemical, ultrastructural and biochemical studies on 4 cases of I-cell disease are reported. These studies support a lysosomal defect with deficiency of many acid hydrolases and storage of both glycolipids and mucopolysaccharides within lysosomes. The clinical, pathological and biochemical spectra of I-cell disease in these 4 cases suggest three distinct nosologic entities: a prototype, a malignant infantile form and a more benign juvenile type. Consanguinity was present in one of the cases. An autosomal recessive mode of inheritance seems most likely.
    Type of Medium: Electronic Resource
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