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Sökning: WFRF:(Mekota Anna Maria)

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1.
  • Litjens, Carlijn H. C., et al. (författare)
  • Protein binding of rifampicin is not saturated when using high-dose rifampicin
  • 2019
  • Ingår i: Journal of Antimicrobial Chemotherapy. - : OXFORD UNIV PRESS. - 0305-7453 .- 1460-2091. ; 74:4, s. 986-990
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Higher doses of rifampicin are being investigated as a means to optimize response to this pivotal TB drug. It is unknown whether high-dose rifampicin results in saturation of plasma protein binding and a relative increase in protein-unbound (active) drug concentrations. Objectives To assess the free fraction of rifampicin based on an in vitro experiment and data from a clinical trial on high-dose rifampicin. Methods Protein-unbound rifampicin concentrations were measured in human serum spiked with increasing total concentrations (up to 64mg/L) of rifampicin and in samples obtained by intensive pharmacokinetic sampling of patients who used standard (10mg/kg daily) or high-dose (35mg/kg) rifampicin up to steady-state. The performance of total AUC(0-24) to predict unbound AUC(0-24) was evaluated. Results The in vitro free fraction of rifampicin remained unaltered (approximate to 9%) up to 21mg/L and increased up to 13% at 41mg/L and 17% at 64mg/L rifampicin. The highest (peak) concentration in vivo was 39.1mg/L (high-dose group). The arithmetic mean percentage unbound to total AUC(0-24)in vivo was 13.3% (range=8.1%-24.9%) and 11.1% (range=8.6%-13.6%) for the standard group and the high-dose group, respectively (P=0.214). Prediction of unbound AUC(0-24) based on total AUC(0-24) resulted in a bias of -0.05% and an imprecision of 13.2%. Conclusions Plasma protein binding of rifampicin can become saturated, but exposures after high-dose rifampicin are not high enough to increase the free fraction in TB patients with normal albumin values. Unbound rifampicin exposures can be predicted from total exposures, even in the higher dose range.
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2.
  • Löfgren, Kent, 1966-, et al. (författare)
  • Meeting the Challenges of Generational Change in the Teaching Profession : Towards a European Model for Intergenerational Teacher Collaboration
  • 2013
  • Ingår i: Educational Research eJournal. - : Educational Research e-Journal (EREJ). - 2254-0385. ; 2:2, s. 107-119
  • Tidskriftsartikel (refereegranskat)abstract
    • In a European-wide effort to improve the professional development of teachers, the 2AgePro project was conducted from November 2008 to October 2010. One of its goals was to develop and test different forms of intergenerational teacher collaboration among junior and senior teachers in primary and secondary schools. Another aim was to utilise the results from these pilots, which were conducted in the Czech Republic, Finland, Germany, the Netherlands, and Sweden, to create a model for intergenerational collaboration that could be used in any national or cultural setting. This article reports on the national pilots and proposes a European model for intergenerational collaboration for teachers.
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