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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Energy & fuels 2 (1988), S. 278-282 
    ISSN: 1520-5029
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1084
    Keywords: Key words: Breast calcifications ; Breast radiography ; Breast neoplasms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The objective of our study was to evaluate paraffin tissue block radiography following biopsy for breast calcifications at a center for population-based mammography screening. During a 5-year period, we radiographed tissue blocks from 259 breast specimens excised because of nonpalpable calcifications. A total of 124 cases were examined retrospectively and 135 cases were examined prospectively. In 34 of 94 (36 %) retrospectively examined cases with calcifications, the histopathological diagnosis was ductal cancer in situ with or without invasive cancer, compared with 3 of 30 (10 %) cases without calcifications. In 6 cases a primary benign histopathological diagnosis was changed to malignant due to the use of tissue block radiography. Tissue block radiography is a valuable adjunctive method to assure that areas containing calcifications are examined by histopathology.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1076
    Keywords: Key words CO2 ; Growth hormone ; Hypoventilation ; Prader-Willi syndrome ; Ventilation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied whether the beneficial effects of growth hormone (GH) treatment on growth and body composition in PWS are accompanied by an improvement in respiratory function. We measured resting ventilation, airway occlusion pressure (P0.1) and ventilatory response to CO2 in nine children, aged 7–14 years, before and 6–9 months after the start of GH treatment. During GH treatment, resting ventilation increased by 26%, P0.1 by 72% and the response to CO2 by 65% (P 〈 0.002, 〈0.04 and 〈0.02, respectively). This observed increase in ventilatory output was not correlated to changes in body mass index. Conclusion Treatment of children with Prader-Willi syndrome (PWS) seems to have a stimulatory effect on central respiratory structures. The observed increase in ventilation and inspiratory drive may contribute to the improved activity level reported by parents of PWS children during growth hormone therapy.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 176 (1991), S. 1437-1442 
    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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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Haemophilia 8 (2002), S. 0 
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  Different methods can be used for the detection and quantification of inhibitors or antibodies to coagulation factor VIII (FVIII). Traditionally, clotting assays have been used, in particular the Bethesda assay. These assays have, however, several shortcomings, due to the complex reaction kinetics of some inhibitors and a low sensitivity to low-titre antibodies. In addition, a universal FVIII inhibitor standard is lacking. Furthermore, clotting assays do not detect noninhibitory antibodies. Use of ELISAs has been described and FVIII from various commercially available FVIII concentrates has been used as target antigen in the assays. In the present study, we systematically explored the influence of different FVIII concentrates on the performance of an ELISA for detection of FVIII antibodies. The described ELISA was also used for further characterization of FVIII inhibitors in patients with acquired and congenital haemophilia A. We found that the source of FVIII had a substantial impact on the frequency of antibody detection. Albumin-free recombinant FVIII as target antigen gave the highest sensitivity for the assay, whereas plasma-derived concentrates containing a high level of von Willebrand factor (vWF) gave the lowest sensitivity. Presumably vWF interferes with the binding of antibodies to FVIII. We suggest that albumin-free recombinant FVIII should be used as target antigen when ELISAs are used for detection of FVIII antibodies.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  Using an 11-year panel of 156 Norwegian and Swedish patients with severe haemophilia, and including retrospective case-book data from birth, we compared the differences in the haemophilia-related resource use between on-demand and prophylactic treatment. Patients treated on-demand had more surgery (arthrodeses, prostheses implantations and synovectomies) and more days lost from work. Median annual factor-concentrate consumption among adults (18+) was 211 000 IU [interquartile range (IQR) 154 000–268 000] or 3 024 IU kg−1 year−1 for patients on prophylactic treatment and 55 000 IU (IQR 28 000–91 000) for on-demand patients (780 IU kg−1 year−1). This was partly explained by the fact that the median dose per kg body weight was twice as great 28, (IQR 24–32) for prophylaxis compared with 14 (IQR 12–16) for on-demand. Prescribed dose per kg body weight was found to be an important factor explaining the variation in total annual factor-concentrate consumption per patient for both types of treatment. Other variables included in the panel-data regression analysis were the number of weeks on secondary prophylaxis for on-demand patients and age, body weight and type of haemophilia for children (0–17 years) on prophylaxis. Differences were consistently substantial and will affect both costs and benefits of the two treatment strategies.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  The expected annual cost (in the year 2000 prices) for a 30-year-old patient with average individual and treatment characteristics for on-demand EUR 51 832 (95% CI: 44 324–59 341) and for prophylaxis EUR 146 118 (95% CI: 129 965–162 271), was obtained from panel-data analysis of an 11-year retrospective panel of 156 patients with severe haemophilia in Norway and Sweden. Costs included haemophilia-related treatment costs within the health-care sector (factor concentrate, doctors’ visits, diagnostic procedures, hospitalisation, invasive procedures, etc.) and cost for haemophilia-related resource use in other sectors (lost production, use of special equipment, adaptation of workplace and domicile, etc). Although costs of lost production, reconstructive surgery and hospitalisation were higher for on-demand, they did not balance out the higher costs of factor-concentrate consumption in prophylaxis. The cut-off risk of premature death, where on-demand and prophylaxis would have been equally costly, was 3.7 percentage units higher for on-demand than for prophylaxis. Such a great risk difference has not been reported elsewhere to our knowledge. Estimated cost-elasticities indicated that annual costs of prophylaxis would increase by approximately the same proportion as a potential increase in the price of factor concentrate and decrease less than proportionately with a reduction in prescribed dose kg−1. For on-demand, the annual costs would increase by approximately the same proportion as an increase in the prescribed dose kg−1.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1365-2516
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary.  The objective of the present paper was to provide an estimate of the benefits of on-demand and prophylaxis treatment strategies for severe haemophilia in monetary terms. Using the contingent-valuation method, which simulates a missing market by asking people about their willingness to pay (WTP), we asked a representative sample (n = 609) of the Swedish population if they would be willing to pay a specific amount (bid) so that patients with severe haemophilia could receive on-demand treatment and another bid for prophylactic treatment. Different respondents were offered different bids and the bid vector ranged from 71 Euro cents to EUR 130. The order of the bid questions was randomized so that half of the respondents were asked first about their WTP for on-demand treatment, and then about their WTP for prophylaxis, while the order was reversed for the other half of the respondents. The mean estimated WTP (year 2002) was EUR 39 (95% CI 31–47) for on-demand and EUR 65 (95% CI 55–73) for prophylaxis. Our sensitivity analysis showed that the ranking of the two treatment alternatives was robust in that the WTP was greater for prophylaxis in all possible subsets. The point estimates of WTP varied somewhat in subsets defined by individual characteristics, but confidence intervals always overlapped that of the main results. The WTP for on-demand and prophylaxis exceeded the calculated cost of treatment per taxpayer of providing on-demand and prophylactic treatment, respectively, based on our previous results [1].
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    238 Main Street, Cambridge, Massachusetts 02142, USA : Blackwell Scientific Publications
    International journal of gynecological cancer 2 (1992), S. 0 
    ISSN: 1525-1438
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The immunohistochemically detectable expression of CA-125 and CEA in ovarian tumor tissue from 187 patients was related to corresponding preoperative serum levels. A strong positive association between tissue expression and the serum level of both the CA-125 and CEA antigens was found in cases of invasive epithelial ovarian carcinoma. However, this relationship was absent for CA-125 in borderline cases and patients with benign ovarian tumors, although the antigen frequently was detectable in them. The presence of ascites could be verified in 3 of 10 cases with benign CA-125 negative tumors, but elevated CA-125 levels in serum. ‘False negative’ CA-125 levels were found in 6 borderline and 7 true invasive carcinoma cases despite positive tissue staining. Eight of those patients had limited stage I disease. The data suggests that although the tissue expression of the CA-125 and CEA antigens in invasive ovarian carcinoma has an important influence in the corresponding serum level, compartment barriers and low cell turnover in benign, and to a lesser extent borderline, cases result in low serum levels. In addition, other factors influence serum levels of CA-125, such as secondary peritoneal response with or without ascites, which may cause ‘falsely elevated’ CA-125 results in benign disease.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    238 Main Street, Cambridge, Massachusetts 02142, USA : Blackwell Scientific Publications
    International journal of gynecological cancer 2 (1992), S. 0 
    ISSN: 1525-1438
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In a prospective study the immunohistochemically detectable tissue expression of the antigens CA-125 and CEA in 112 epithelial ovarian carcinomas and 23 borderline tumors was related to histologic features of the tumor and to patient survival. The CA-125 antigen was expressed mainly in non-mucinous tumors, with no evident association between histologic grade and immunoreactivity. CEA was expressed in mucinous tumors regardless of tumor grade. Flow cytometric DNA analysis was performed on fresh frozen tissue in a subgroup of 60 cases. There was no association between DNA ploidy or S-phase fraction and the CA-125 or CEA antigen expression. Tumor stage, size of residual tumor masses after surgery and DNA ploidy had independent associations with patient survival in multivariate log-rank analysis of prognostic factors. However, there was no association between the CA-125 or CEA antigen expression and patient survival. Thus, in ovarian carcinoma the expression of the CA-125 and CEA antigens seems to be independent of the inherent malignant potential of the tumor epithelium, while DNA analysis provides valuable prognostic information.
    Type of Medium: Electronic Resource
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