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  • Chagas' disease  (1)
  • Copper deficiency  (1)
  • Gastrointestinal tract, inflammation  (1)
  • 1
    ISSN: 1432-1084
    Keywords: Gastrointestinal tract ; Gastrointestinal tract, inflammation ; Gastrointestinal tract, neoplasms ; Ultrasonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a retrospective analysis performed on 4167 routine abdominal sonographic (US) examinations (September 1989 to December 1991), 93 US reports strongly suggesting the presence of gastrointestinal (GI) tract disorders were found. Neoplastic GI tract diseases were indicated in 65.6 % of cases and non-neoplastic conditions in 34.4 %. The final diagnoses confirmed all the cases of non-neoplastic disease, while 3 patients sonographically suspected as having a neoplasm proved not to have any GI tract abnormality. In the period January 1992 to December 1992, 62 patients with a suspected GI tract abnormality were enrolled in a prospective double-masked US study after being submitted to conventional radiological studies only in 28 of 62 cases, after conventional studies and CT in 24 of 62 cases, and after CT only in 10 of 62 cases. Sonography furnished additional diagnostic information in 28 of 62 cases when the previous radiological examination did not include CT, but sonography misinterpreted 4 inflammatory disorders as tumours. Our study confirmed the important role of US alone or in association with other imaging modalities in the study of GI tract diseases.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Child's nervous system 11 (1995), S. 112-114 
    ISSN: 1433-0350
    Keywords: Menkes' disease ; Copper deficiency ; Pili torti ; Magnetic resonance imaging ; Skeletal roentgenography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Menkes' disease, a neurodegenerative progressive X-linked disorder, was diagnosed in a 4-month-old child. The diagnosis was made on the combination of clinical features with laboratory and radiological findings. The pathogenesis of the skeletal findings in Menkes' disease is as yet unclear. Because of the severity of the prognosis and in order to plan treatment, the correct diagnosis has to be reached quickly. Typical manifestations of the syndrome are likely to develop after 3 months of age, with a pleiotropic appearance. In the present case, on the basis of the clinical investigation the patient underwent retrograde cystourethrography, roentgenographic examination of the skeleton, and magnetic resonance imaging of the brain. On analysis of the magnetic resonance imaging, we detected one-sided involvement of both subcortical and cortical parenchyma resembling a unilateral ischemic lesion such as, to our knowledge, has not yet been reported.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1435-1463
    Keywords: Chagas' disease ; sympathetic denervation ; complement depletion ; cobra venom factor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The acute phase of the experimental Chagas' disease in rats induces extensive lesion of the heart sympathetic nerve terminals. Because of evidence indicating the involvement of immune reactions in neuron destruction provoked by Chagas' disease, we tested the effects of depleting the complement system by cobra venom factor upon the sympathetic denervation. The serum hemolytic activity against sensitized sheep erythrocytes ensured the efficacy of the anticomplementary treatment. Glyoxylic acid-induced histofluorescence and electron-microscopic methods allowed the study of the heart noradrenergic nerves.T. cruzi infection caused marked rarefaction of fluorescent nerve terminals at day 10 of infection and the ultrastructural study guaranteed that this rarefaction involved lesion of noradrenergic terminals. The complement depletion failed to prevent this early heart noradrenergic denervation, excluding the participation of complement-mediated lysis as a main mechanism.
    Type of Medium: Electronic Resource
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