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  • 1
    ISSN: 1590-3478
    Keywords: hereditary motor and sensory neuropathy ; Charcot-Marie-Tooth disease ; Dejerine-Sottas disease ; demyelination ; hypomyelination ; 17p11.2 duplication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario Abbiamo paragonato 25 pazienti affetti da neuropatia ereditaria sensitivo-motoria (HMSN) di tipo I ad ereditarietà autosomica dominante con 7 pazienti affetti da neuropatia ipertrofica ad ereditarietà non dominante. Tutti i pazienti con ereditarietà autosomica dominante sono risultati portatori della duplicazione 17p11.2, dimostrando così che questa è largamente presente nelle famiglie HMSN I. Il secondo gruppo comprendeva: due fratelli affetti da una neuropatia ipertrofica di gravità nettamente diversa, nati da genitori sani non consanguinei; due sorelle con un fenotipo HMSN I nate da genitori sani, cugini di primo grado; due fratelli con un fenotipo HMSN III nati da genitori non consanguinei affetti da HMSN II; un bimbo con un classico fenotipo HMSN III, nato da genitori sani, non consanguinei. L'analisi del DNA ha dimostrato l'assenza della duplicazione sia nei pazienti del secondo gruppo che nei loro genitori. I nostri dati dimostrano che: l'HMSN III è eterogenea e comprende pazienti omozigoti per differenti geni neuropatogeni; è opportuno tenere distinti i pazienti con neuropatia ipertrofica recessiva da quelli portatori di una HMSN Ia dominante poiché è probabile che le due malattie siano dovute a difetti genici diversi.
    Notes: Abstract We compared 25 autosomal dominant hereditary motor and sensory neuropathy (HMSN) type I patients with 7 subjects affected by hypertrophic HMSN with non-dominant inheritance. All the autosomal dominant HMSN I cases carried the chromosome 17p11.2 duplication, providing evidence that it is widely represented in HMSN I families. The second group included: Two siblings born to unrelated, unaffected parents and suffering from hypertrophic HMSN of strikingly different severity; two sisters with HMSN I phenotype, born to first-cousin unaffected parents; two brothers with HMSN III phenotype born to unrelated parents both showing HMSN II phenotype; a child with classic HMSN III phenotype, born to unrelated, unaffected parents. The 17p11.2 duplication was not found in any of the patients of the second series or in their parents. Our data provide further evidence that: HMSN III is heterogeneous and encompasses the homozygous expressions of different neuropathic genes; it is advisable to separate autosomal recessive hypertrophic HMSN from dominant HMSN Ia, because they appear to be due to different DNA mutations.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 21 (2000), S. 251-253 
    ISSN: 1590-3478
    Keywords: Key words Fatal familial insomnia ; Prion disease ; Pica ; Gabriel Gracía Márquez ; Insomnia plague
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract “All the great writers have good eyes” is a sentence by V. Nabokov that is very suitable for G.G. Márquez and his One Hundred Years of Solitude. The novel, published in 1967, introduces among many others, the character of little Rebeca, whose frailness and greenish skin revealed hunger “that was older than she was”. The girl, because of a pica syndrome, only liked to eat earth and the cake of white-wash. But her fate appears to be determined by the lethal insomnia plague, whose most fearsome part was not the impossibility of sleeping but its inexorable evolution toward a loss of memory in which the sick person “sinks into a kind of idiocy that had no past”. Rebeca's lethal insomnia looks quite similar to the “peculiar, fatal disorder of sleep” originally described by Lugaresi et al. in 1986. One Hundred Years of Solitude shows that G.G. Márquez was gifted not only with good eyes, but has the seductive power of changing reality into fantasy, while transforming his visions into reality.
    Type of Medium: Electronic Resource
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