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  • 1
    ISSN: 1432-0533
    Keywords: Tissue culture ; Human peripheral neurons ; Myelin-associated glycoprotein ; Immunocytochemistry ; Morphology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Dorsal root ganglion cells, obtained from 8–10-week human foetuses, were isolated by enzymatic procedure and grown on poly-l-lysine-coated coverslips. Most of the cultured cells showed the ultrastructural and immunological features of normal peripheral neurons. By immunocytochemistry neurons reacted with IgM antibodies with specificity for myelin-associated glycoprotein (MAG) from patients affected with IgM k gammopathy and peripheral neuropathy. The antigen was located on the plasmalemma of both perikarion and axon. We suggest that anti-MAG antibodies do not recognize neuronal MAG, but rather an epitope shared with different glycoproteins.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1459
    Keywords: Congenital oculofacial diplegia ; Möbius syndrome ; Pyramidal tract hypoplasia ; Embryonic maldevelopment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es werden die klinisch-pathologischen Befunde angeführt, die bei einem jungen Patienten mit Diplegia-oculo-facialis-congenita-Parese der Pharynx- und Larynxmuskulatur, bei gleichzeitiger Tetraparese, beobachtet wurden. Zu den erwähnten Symptomen und Syndromen kommt ein komplexes pathologisches Bild von Mißbildungen hinzu wie: das Fehlen der Bulbi olfactorii, Anomalien des Hippocampus, Hypoplysis des Corpus callosum und des Cerebellum und eine hochgradige Hypoplasie der efferenten Cortexbahnen. Die Hypoplasie der efferenten Cortexbahnen und die dadurch bedingte Denervation der Hirnnervenkerne wird als die Ursache des Möbius-ähnlichen Syndroms angesehen.
    Notes: Summary The clinicopathological findings are reported in a child with congenital oculofacial diplegia, paresis of pharyngeal and laryngeal muscles, and concomitant tetraparesis. The constellation of signs and symptoms correlates with a complex picture of maldevelopment, including absence of olfactory bulbs, hippocampal abnormalities, hypoplasia of the corpus callosum and of the cerebellum, and severe hypoplysia of the descending pathways. We stress the role played by the hypoplasia of the descending fibres, with consequent denervation of the cranial nerve nuclei, in producing the Möbius-like picture.
    Type of Medium: Electronic Resource
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