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  • 1
    Electronic Resource
    Electronic Resource
    SERUM IMMUNOGLOBULINS AND LYMPHOCYTE SUBPOPULATIONS DERANGEMENT IN TURNER'S SYNDROME (1981)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 8 (1981), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abnormalities of the proportions of peripheral blood lymphocyte subpopulations and of immunoglobulin serum levels were found in twenty patients affected by Turner's syndrome. A slight but significantly decreased percentage of circulating T and B cells, an increased percentage of null cells and a decreased in vitro, responsiveness of lymphocytes to phytohaemagglutinin, concanavalin A and pokeweed mitogen were found in Turner's syndrome patients. IgG serum level was found significantly decreased in comparison with age-matched fifty-seven normal males and fifty-seven normal females and IgM serum level was intermediate between female and male values; Turner's syndrome patients with monosomy had an IgM serum concentration very close to male values. The derangement of T and B lymphocyte subpopulations, probably related to the aneuploidy, does not seem to be a severe one but it could account for the immunoglobulin abnormalities and for the association of Turner's syndrome with immunological disorders such as autoimmune diseases. The role of X chromosome on IgM serum level is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1981.tb00938.x
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  • 2
    Electronic Resource
    Electronic Resource
    Carriage of Pneumocystis carinii in Children with Chronic Lung Diseases (1997)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 44 (1997), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1997.tb05743.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Association of asthma with extra-respiratory symptoms in schoolchildren: Two cross-sectional studies 6 years apart (2002)
    Copenhagen, Denmark : Munksgaard International Publishers
    Pediatric allergy and immunology 13 (2002), S. 0 
    Details
    ISSN: 1399-3038
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Epidemiological information on symptoms affecting extra-respiratory organs and apparatuses in asthmatic children is scarce. The aim of this study therefore was to evaluate, at a population level, if and what extra-respiratory symptoms are associated with asthma. Two questionnaire-based, cross-sectional surveys were carried out on 1,262 students (651 males; mean age 9.57 years, age-range 6–14 years) in 1992 and on 1,210 students (639 males; mean age 9.02 years, age-range 6–14 years) in 1998, from two elementary and two junior high schools in Rome, Italy. Questionnaires included queries about asthma and its risk factors and extra-respiratory symptoms (headache, restlessness, sleep disturbances, urticaria, itching, and abdominal pain). Of responders, 11.9% (279/2,342) had a history of asthma. After adjustment for gender, family history of atopic disease, low birth weight, early respiratory problems, and damp house, asthma was significantly associated with recurrent abdominal pain (odds ratio [OR] 1.90; 95% confidence interval [CI]: 1.04, 3.16), itching (OR 3.15; 95% CI: 1.75, 5.68), and urticaria (OR 2.52; 95% CI: 1.02, 6.20). Asthma was reported by 10.2% (201/1,962) of children unaffected by this triad, by 20.1% (56/279; OR 2.20) with one of the symptoms, and by 31.6% (12/38; OR 4.04) with two or more symptoms. An emerging characteristic of pediatric asthma in our setting appears to be its association with certain extra-respiratory symptoms (abdominal pain, itching, and urticaria). A global, internistic approach to asthmatic children is increasingly required both in the clinical setting and in future epidemiological studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1399-3038.2002.01036.x
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  • 4
    Electronic Resource
    Electronic Resource
    Skin reactivity to histamine and to allergens in unselected 9-year-old children living in Poland and Italy (2003)
    Oxford, UK : Munksgaard International Publishers
    Pediatric allergy and immunology 14 (2003), S. 0 
    Details
    ISSN: 1399-3038
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Several studies have shown a higher prevalence of positive skin-prick tests to airborne allergens in Western than in Eastern European countries. We have recently reported that skin histamine reactivity significantly increased in Italy over the past 15 years. Population differences in skin histamine reactivity could, at least in part, explain the reported differences in positive allergen skin tests. To test this hypothesis we compared histamine skin reactivity and the prevalence of allergen positive skin-prick tests in a sample of Italian and Polish schoolchildren. A total of 336 unselected 9-year-old-schoolchildren (198 in Italy and 138 in Poland) underwent skin-prick tests with three different histamine concentrations (10, 1 and 0.2 mg/ml) and with a panel of common airborne allergens according to the ISAAC protocol, phase two. Mean wheals elicited by skin-prick tests with the three serial concentrations of histamine were significantly larger (p 〈 0.001) and shifted more toward higher values (p 〈 0.001) in Italian than in Polish children. The differences were greater for the intermediate histamine concentration tested (1 mg/ml) than for the highest concentration (10 mg/ml). Skin-prick tests for airborne allergens were more frequently positive in Italian children: wheals ≥ 3 mm induced by any allergen [odds ratio (OR) 1.69; confidence interval (CI) 0.98–2.92] by Dermatophagoides pteronyssinus (OR 1.92; CI 0.97–3.80) and by D. farinae (OR 3.15; CI 1.16–8.63). Labeling as positive allergen wheal reactions half the size of the 10 mg/ml histamine wheal or larger reduced but did not abolish the Italian–Polish differences. The significantly higher skin histamine reactivity observed in Italian children could help to explain why allergen skin-test reactions differ in the East and West European populations. Moreover, differences in nonallergen-specific factors among populations should be considered in the interpretation of skin test results (e.g. cut-off points). To obtain meaningful results, epidemiological studies of allergies should include serial histamine dilutions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1399-3038.2003.00027.x
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  • 5
    Electronic Resource
    Electronic Resource
    Why Chlamydia pneumoniae is associated with asthma and other chronic conditions? Suggestions from a survey in unselected 9 yr old schoolchildren (2005)
    Oxford, UK : Munksgaard International Publishers
    Pediatric allergy and immunology 16 (2005), S. 0 
    Details
    ISSN: 1399-3038
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Despite numerous studies demonstrating an association between asthma and many other chronic conditions and signs of Chlamydia pneumoniae (Cp) infection, the role of Cp in the pathogenesis of these illness remain still unclear. We investigated the prevalence of Cp antigen in the upper airways and the prevalence of detectable Cp serum antibodies in an unselected population of 207 9-yr-old schoolchildren. We also sought the presence of asthma, chronic or recurrent respiratory symptoms by means of questionnaire completed by the parents. Nasal aspirate, blood sampling and allergen skin prick tests were also performed. None of the children had obvious signs of acute infection at physical examination. Cp DNA was detected in nasal aspirates from 20 of the 207 children tested and serum IgG antibodies for Cp in 68 children. No association was found between atopy or history of atopic illness and the presence of Cp DNA or antibody production. This finding is explained by the fact that our study was conducted in an unselected childhood population, inherently including few children with asthma. A strong association between the status of antigen carrier and the presence of detectable Cp serum immunoglobulin (Ig)G or IgM suggests that subjects with detectable Cp antibodies have an impaired ability to eliminate this pathogen when infected. Because Cp eradication requires a strong Th1 lymphocyte response, the previously proven association between Cp and asthma, might reflect the known association of asthma with Th2-oriented lymphocytic activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3038.2005.00244.x
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