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  • 1995-1999  (3)
  • 1996  (3)
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  • 1995-1999  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Atopic eczema and other manifestations of atopy: results of a study in East and West Germany (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 51 (1996), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Within an environmental health study, dermatologic examination of 1273 pre-school-age children (5–7 years old) was carried out in selected areas of East (n= 287) and West (n= 987) Germany in spring 1991. On the basis of comparable genetic background, the influence of a different exposure to air pollutants on the manifestation of atopic diseases was investigated. Halle an der Saale (East Germany) and Duisburg (North/South) as well as Essen (West Germany) were chosen as polluted study areas, whereas the countryside town of Borken (West Germany) served as a control region. Outdoor pollution with particles and SO2 was significantly higher in Halle an der Saale. Of the total study group. 12.9% suffered from atopic eczema at the time of examination. The prevalence was highest in East Germany (17.5%; adjusted odds ratio [OR] 1.39, confidence intervals [CI] 0.77–2.52, compared to Borken). The reported frequencies of hay fever and asthma in the total study population were 2% and 1.3%, respectively, without significant differences between study sites. Some 34.7% of the children showed at least one positive skin prick test reaction; significantly (P〈 0.001) higher sensitization rates were obtained in western regions (Essen, Duisburg-South) than in the control region (Borken) and East Germany. Multivariate analysis of the prevalence of atopic eczema showed associations with parental predisposition (OR 1.52, CI 1.03–2.25), sex (for boys, OR 0.63, CI 0.43–0.92), location (Duisburg-South vs Borken OR 0.52, CI 0.30–0.96). month of investigation (May vs April, and March vs February OR 0.55, CI 0.37–0.81), contact with rabbits (for girls, OR 2.90, CI 1.36–6.19), animal fur in bedrooms (2.17, 1.01–4.67), indoor use of gas without hood (1.68, 1.11–2.56), and distance of homes from a busy road (〈50 m 1.71, 1.07–2.73). Nonsignificant associations were observed for history of helminthic infections (OR 1.61, CI 0.98–2.64) and high parental education level (OR 1.83, CI 0.83–4.02). In East and West Germany, atopic eczema seems to follow a course different from that of respiratory allergic diseases and specific sensitization, a fact which underlines the need for a differentiated analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1996.tb04665.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    IgE antibodies to Hymenoptera venoms in the serum are common in the general population and are related to indications of atopy (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 51 (1996), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Determination of Hymenoptera venom (HV)-specific serum IgE antibodies is a useful diagnostic method in patients with systemic anaphylactic reaction (SAR) to Hymenoptera stings. In a general population cohort, we determined the prevalence of SAR and HV-specific IgE antibodies and assessed parameters associated with the latter. A total of 277 voluntarily participating inhabitants of rural Bavaria (Germany) (232 adults, mean age 38.0 years; 45 children, mean age 8.4 years) were investigated for a history of atopic disease or SAR to insect stings; in 258 of these, total IgE and specific IgE antibodies to HV (Apis melliferu, Vespulu vulguris/germanica) and four common aeroallergens (birch pollen, grass pollen, house-dust mite, and cat dander) in the serum were determined. Nine (3.3%) subjects reported SAR to insect stings. In 27.1% of the sera, specific IgE antibodies to HV were found, to bee venom in 24.8%, and to wasp venom in 8.5% (P〈0.000l) Of those exhibiting HV-specific IgE, 7.1% reported SAR to insect stings. A personal history of atopic disease (hay fever, asthma, or atopic eczema) was present in 16.7%, specific IgE to common aeroallergens was found in 32.6%, and total IgE〉 100 kU/1 was found in 22.5%. Specific serum IgE to HV was significantly associated with male sex (female vs. male, OR =0.47; CI 0.25-0.86), young age (children vs. adults, OR =2.80; CI 1.25-6-28), a history of SAR to insect stings (OR=4.16; CI 1.15-15.03), total sIgE〉 100 kU/1 (OR=3.88; CI 1.98-7.60), and specific IgE antibodies to three of the four aeroallergens (grass pollen, OR = 7.24 CI 3.66-14.38; birch pollen, OR=3.67 CI 1.54-8.81; and house-dust mite, ORz4.61 CI 2.08–10.32). It is concluded that immunologic sensitization to HV is common in the general population and is associated with atopy-related I humoral IgE hyperresponsiveness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1996.tb04632.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Hybridomas in a bioreactor cascade: modeling and determination of growth and death kinetics (1996)
    Springer
    Cytotechnology 21 (1996), S. 263-277 
    Details
    ISSN: 1573-0778
    Keywords: hybridomas ; serum-free medium ; monoclonal antibodies ; reactor series ; kinetics ; modeling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Hybridomas were cultured under steady-state conditions in a series of two continuous stirred-tank reactors (CSTRs), using a serum-free medium. The substrate not completely converted in the first CSTR, was transported with the cells to the second one and very low growth rates, high death rates, and lysis of viable cells were observed in this second CSTR. These conditions are hardly accessible in a single vessel, because such experiments would be extremely time-consuming and unstable due to a low viability. In contrast to what is often observed in literature, kinetic parameters could thus be derived without the neccessity for extrapolation to lower growth rates. Good agreement with literature averages for other hybridomas was found. Furthermore, showing that the reactor series is a valuable research tool for kinetic studies under extreme conditions, the possibility to observe cell death under stable and defined steady-state conditions offers interesting opportunities to investigate apoptosis and necrosis. Additionally, a model was developed that describes hybridoma growth and monoclonal antibody production in the bioreactor cascade on the basis of glutamine metabolism. Good agreement between the model and the experiments was found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365349
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    Paper (German National Licenses)
    Fulltext
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