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  • 1
    ISSN: 0888-7543
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cancer Genetics and Cytogenetics 31 (1988), S. 105-112 
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    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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  • 4
    ISSN: 1590-3478
    Keywords: Huntington’s disease ; Predictive testing ; Genetic counselling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Pre-symptomatic testing for Huntington’ s disease (HD) has been available as a clinical service in the medical centres of Rome and Genoa since December 1987, initially by DNA-linkage and since mid-1993 by direct mutation analysis. A multidisciplinary approach and a protocol which follows the Ethical Issue Policy Statement on Huntington’s Disease Molecular Genetics Predictive Test has been used. In the period under study, 332 subjects requested the test, 288 were enrolled in the protocol and nearly half of these completed it. One hundred and forty-eight people withdrew from the testing procedure for various reasons but most frequently due to a more realistic evaluation of all possible consequences of test results, induced by psychological counselling. Therefore, 140 people completed the test. The overall gene-carrier/non-carrier ratio was 0.46:1. None of the identified gene carriers had catastrophic reactions such as suicide, suicide attempts or major psychiatric disorders. All appear to have had a similar pattern of reactions to an adverse result and none expressed regret for undergoing the test. In conclusion, presymptomatic testing for HD can be considered a safe procedure without adverse consequences when framed in an integrated protocol at qualified genetic centres.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 19 (1998), S. 149-149 
    ISSN: 1590-3478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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