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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 145 (1987), S. 651-657 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cancer Genetics and Cytogenetics 60 (1992), S. 35-40 
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1437-773X
    Keywords: Key words Pigmented purpuric dermatitis ; Endothelial cell ; Fibrous long-spacing collagen ; Intracellular structure ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of pigmented purpuric dermatitis (PPD) in a Japanese man aged 59 years is reported with an interesting ultrastructural finding. Clinically, the lesions, which consisted of telangiectatic puncta and pigmentation, were irregular in shape and occurred predominantly on the lower legs without pruritus. Histologically, lymphocytic perivascular infiltrates and extravasation of red blood cells were observed in the papillary dermis. Ultrastructurally, endothelial cells with ovoid nuclei showed swelling and the lumen of the capillary became narrowed. Several banded structures, so-called fibrous long-spacing collagen (FLSC), were observed in the cytoplasm. They were spindle shaped, about 5 μm in length, and showed crossbands of 300-nm-wide intervals with fine intraperiodic bands. These structures were not observed in dermal connective tissue and fibroblasts. These results suggested that FLSC was synthesized in endothelial cells rather than being phagocytosed by endothelial cells, which might be helpful in investigating the etiology of PPD.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 19 (1995), S. 383-389 
    ISSN: 1432-5195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le fibrome desmoïde extra-abdominal (FDEA) est une lésion bénigne. Cependant, elle est difficile à traiter en raison de sa nature infiltrative et de sa tendance à la recidive Parmi les traitements recommandés autrefois, la grande excision était une méthode sûre même dans les cas difficiles. Rétrospectivement, nous avons analysé 41 cas confirmés histologiquement de FDEA. Un total de 98 opérations ont été pratiquées chez ces patients. Nous avons fait 29 grandes excisions sur 22 patients, 52 excisions intra-lésionelles avec de grandes marges sur 16 patients et 17 excisions incomplètes sur 3 patients. Un patient atteint d'une lesion intra-pelvienne est décédé trois jours après l'opération. On a observé 40 patients pendant une période de 3 à 29 ans. Un de ces patients atteint de FDEA multicentrique, suivi 21 ans, est décédé de la maladie. Les principaux facteurs contribuant à la recurrence locale sont les suivants: (1) La qualité de l'excision initiale, (2) La maladie affectant 4 muscles ou plus, (3) La nature invasive des récidives du FDEA. Nous recommandons la grande excision locale de ces tumeurs dans toutes les régions anatomiques le permettant. Sinon, lorsque des nerfs ou vaisseaux importants sont présents, nous recommandons l'excision intra-lésionelle avec une grande marge afin de préserver le fonctionnement des membres (inférieures + supérieurs); la radio-thérapie devrait être utilisée seulement si les grandes excisions ne peuvent pas être réalisées. Globalement, 37 patients (90%) ont pu être guéris de cette maladie. Deux patients ont vu leur maladie contrôlée, et 2 autres patients sont décédés comme mentionné ci-dessus.
    Notes: Summary Extra-abdominal desmoid tumours (EADT) are benign lesions but difficult to cure because of their infiltrative nature and tendency to recur. Among many treatments recommended in the past, wide excision has been successful, even in difficult cases. We have analyzed retrospectively 41 cases of histologically confirmed EADTs. A total of 98 operations were performed on these patients: 29 wide excisions on 22 patients, 52 intra-lesional excisions with wide margins on 16 patients, and 17 incomplete excisions on 3 patients. One patient, with intra-pelvic lesions, died of a massive haemorrhage 3 days after surgery. Forty patients were followed from between 3 and 29 years. One, who had a multicentric EADT for 21 years, died from the disease. The significant factors concerning local recurrence after wide procedures were an unsatisfactory initial wide local excision, disease affecting 4 or more muscles and the invasive nature of the recurrences. We recommend wide local excision of these tumours in all anatomical areas that allow this procedure. When major nerves and vessels are involved, we recommend an intralesional excision with wide margins in order to preserve limb function. Radiation therapy should be confined to cases in which wide local procedures are not feasible. Overall, 37 of our patients (90%) were cured of the disease, 2 had their disease controlled, and 2 died.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The decomposition reaction of hydrogen peroxide by Fe(III)- and Co(III)-2,9,16,23-tetracarboxyphthalocyanine supported on poly(2-vinylpyridine-CO-styrene) and the quaternized one, was studied at pH 7.0 in aqueous media. The kinetics of this reaction was also investigated at pH 7.0 by measuring the initial velocity V0 of the increasing concentration of O2 with a Warburg respirometer. The reaction proceeded according to the catalaselike mechanism. Fe(III)-2,9,16,23-tetracarboxyphthalocyanine supported on poly(2-vinylpyridine-CO-styrene) was a remarkably effective catalyst for a H2O2 decomposition reaction. The coordination sphere around the Fe(III)-phthalocyanine ring was characterized by electronic and ESR spectroscopy. Fe(III)-phthalocyanine supported on the copolymer dispersed in water was the five-coordinated, high-spin type. A typical competitive inhibition in respect of H2O2 by CN- was observed. ESR spectrum of this system showed the low spin iron(III) in the octahedral ligand field. The polymer coils hindered undesirable dimerization of metal-phthalocyanine molecules by the shielding effect.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 21 (1983), S. 157-162 
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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