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  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 31 (1990), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An anligen-specific T-cell line which transforms into T-lymphoma cells in vitro but apparently not in vivo is described. Membrane markers, tumorigenicity and T-cell receptor(TcR) Vα and Vβ- gene usage of the in vitro transformed T-cell line were analysed to investigate whether the transformation event was poly-, oligo-, or monoclonal. The results indicate that the Tlymphoma has no chromosome abnormalities, contains no tumour-inducing virus, can induee clone-specific immunity, and is oligodonal wilh respect to TcR Vα and Vβ expression. The nature of the transformation event and clinical application of vaccination against Tlymphomas is diseussed. In addition, the expressed TcR Vα and Vβ repertoire of Con A T blasts was apparently not affected by the Igh-I or the MHC haplotype, as investigated in lgh-1 and MHC congeneic C57BI mice.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of orofacial orthopedics 54 (1993), S. 134-142 
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The aim of the study presented here was to evaluate the efficacy of symmetry indices when using a specially adapted computer aided mandibular analysis of symmetry degree (CMS). By means of using a series of anteroposterior cephalograms with experimentally simulated rotations and tippings of the two mandibles under study (one ideal symmetric, one severe asymmetric), it proved possible to quantify significant distractions in the degree of symmetry. It was possible to demonstrate that the determination of percentual symmetry degree is a helpful diagnostic tool in the case of skeletal mandibular asymmetry. In the two-dimensional projections of posteroanterior cephalograms, however, computer aided differential analysis of the functional and skeletal components of asymmetry were not shown to be valid. This finding can thus be generally applied to all exclusively posteroanterior cephalogram related symmetry indices.
    Notes: Zusammenfassung Ziel der vorliegenden Studie war es, die diagnostische Aussagekraft von Symmetriegraden einer speziell adaptierten computergestützten mandibuläen Symmetriegradanalyse (CMS) zu bewerten. Durch die CMS von Fernröntgenfrontalbildserien mit experimentell stimulierten Rotationen und Kippungen der Modellunterkiefer (einem ideal symmetrischen, einem extrem asymmetrischen) konnten signifikante Verzerrungen der Symmetriegrade quantitativ dargestellt werden. Es zeigte sich, daß die prozentuale Symmetriegradbestimmung bei skelettaler Asymmetrie von diagnostischem Wert ist. Computergestützte Differentianely see zwischen funktionellen und skelettalen Asymmetriekomponenten erwiesen sich bei dem zweidimensionalen Abbildungssystem der Fernröntgenfrontalaufnahme als nicht valide. Diese Aussage kann als verallgemeinerungsfähig für sämtliche ausschließlich FRF-bezogenen Asymmetrieindizes gelten.
    Type of Medium: Electronic Resource
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