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  • 1
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The complete sequence of the plasmid pHly152-encoded hemolysin (hly) determinant of Escherichia coli is presented and compared with a recently sequenced chromosomal hly determinant [1]. High sequence homology between the two hly determinants is observed withìn all four structural genes, hlyC, A, B and D, but little sequence similarities are found in the 3′- and 5′-noncoding flanking regions. In addition, the noncoding region upstream of hlyC which carries the promoter for hlyC, A and B, was sequenced for several chromosomal hly determinants. The comparison of these sequences indicates three distinct classes of promoter regions which share common putative −10 and −35 boxes at roughly the same location relative to the start of hlyC.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 45 (1990), S. 0 
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Sera from 204 adult patients with chronic airways obstruction were analysed with the Phadiatop®, a new allergosorbent test with a paper disc containing the most relevant inhalant allergens, the PRIST for total IgE determinations, and a panel of seven RAST tests with the common inhalant allergens in The Netherlands as reference. The aim was to evaluate the Phadiatop as screening test in the in vitro diagnostic procedures in an epidemiological setting. The Phadiatop was classified positive or negative according to percentage binding, total IgE was considered elevated at values 〉 100 kU/1 and the RAST panel positive when at least one RAST result was class 〉 1. The prevalence of inhalant atopy came to 27.9%. The predictive value of the Phadiatop for a positive RAST panel was 96.4%, and for a negative RAST panel 97.3%. For the PRIST these values were 51.9% and 87.2% respectively. The correlation between the log percentages binding of the Phadiatop and the RAST panel was 0.93. It is concluded that the Phadiatop is a valuable test for the screening of inhalant atopy, and as the percentage binding of the Phadiatop may reflect the degree of sensitization it could also be applied as a quantitative measure especially for epidemiological purposes.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Corticosteroid therapy has become the mainstay in the treatment of asthma. However, the risk-benefit balance in the patient calls for assessment of the state of inflammation in the airways. In this respect serum eosinophil cationic protein (ECP) might be a marker, which can easily be measured in a clinical setting. Studies have indicated a relation between level of serum ECP and activity and severity in asthma.Objective To investigate the feasibility to guide steroid therapy on the basis of the level of serum ECP in patients with chronic asthma.Methods Twenty adult patients on maintenance inhaled steroid therapy visited the chest clinic once every 2 months over a 12-month period. At each visit a short history, blood sample for ECP and number of eosinophils, baseline spirometry, and histamine inhalation provocation test (PC20) were obtained. On the basis of level of ECP, adjustments in daily dose of steroids were considered. Data were compared with those of a previous 6-month ECP evaluation study in these same patients.Results In 10 patients mean dose of inhaled steroids was decreased 〈inlineGraphic alt="geqslant R: gt-or-equal, slanted" extraInfo="nonStandardEntity" href="urn:x-wiley:09547894:CEA519:ges" location="ges.gif"/〉 25%. ECP rose slightly (antilogged mean from 9.06 to 11.8μg/L) and lung function decreased slightly (mean FEV1%predicted from 85.5 to 81.6). In seven patients mean dose of inhaled or oral (n= 2) steroids was increased 〈inlineGraphic alt="geqslant R: gt-or-equal, slanted" extraInfo="nonStandardEntity" href="urn:x-wiley:09547894:CEA519:ges" location="ges.gif"/〉 25%. In this group ECP decreased but remained elevated at 〈inlineGraphic alt="geqslant R: gt-or-equal, slanted" extraInfo="nonStandardEntity" href="urn:x-wiley:09547894:CEA519:ges" location="ges.gif"/〉20μg/L (antilogged mean from 30.5 to 25.6μg/L) and lung function improved (mean FEV1%predicted from 67.2 to 74.5). In both groups patients' scores of asthmatic well-being increased significantly, and PC20 did not show a trend. Exacerbation rate remained the same in the decreased and the no change group (n= 3, in which no substantial change in steroid dose occurred), but was reduced by about 50% in the increased group.Conclusion From this observational study it is concluded that adjusting steroid therapy guided by serum ECP-level may be helpful in tailoring asthma treatment.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The graft-directed, cell-mediated immunity in kidney-allografted patients was examined with a serologically defined (SD), donor-unrelated panel of antigenic material in clinical steady state, soon after transplantation, and during acute rejection episodes. The SD antigens were selected from the panel on the basis of predictions hypothesized from the SD match of donor and recipient. The cell-mediated immunity was measured by the direct leukocyte migration agarose test (LMAT). Positive reactions in kidney-transplanted patients were induced particularly by one preparation (antigen 52) and were unpredictable on the basis of SD classification. The investigation shows that other antigenic determinants, different from SD antigens, probably play an important role as inducers of cell-mediated, graft-associated immunity in kidney-transplanted patients.
    Type of Medium: Electronic Resource
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