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Sökning: WFRF:(Lennernas P) > Lunds universitet

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1.
  • Berggren, S, et al. (författare)
  • Regional transport and metabolism of roivacaine and its CYP3A4 metabolite PPX in human intestine
  • 2003
  • Ingår i: Journal of Pharmacy and Pharmacology. - : Oxford University Press (OUP). - 0022-3573 .- 2042-7158. ; 55:7, s. 963-972
  • Tidskriftsartikel (refereegranskat)abstract
    • The major aim of this study was to investigate the CYP3A4 metabolism and polarized transport of ropivacaine and its metabolite 2',6'-pipecoloxylidide (PPX) in tissue specimens from the human small and large intestine. Ropivacaine has been shown to be effective in the treatment of ulcerative colitis in human colon. This study was conducted using a modified Ussing-chamber technique with specimens from jejunum, ileum and colon collected from 11 patients. The local kinetics of ropivacaine and PPX were assessed from their concentration-time profiles in mucosal and serosal compartments. The permeability (P-app) in the absorptive direction for both ropivacaine and PPX increased regionally in the order jejunum
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3.
  • Lundberg, Dan, 1975, et al. (författare)
  • Studies on the Interactions Between Mucin and Surfactant Aggregates Containing the Cationic Surfactant Dodecyl Betainate
  • 2009
  • Ingår i: Journal of Dispersion Science and Technology. - : Informa UK Limited. - 1532-2351 .- 0193-2691. ; 30:6, s. 920-928
  • Tidskriftsartikel (refereegranskat)abstract
    • The interactions of surfactant aggregates containing the cationic, cleavable surfactant dodecyl betainate (DB) with mucin are investigated. The aggregates were either mixed micelles of DB and the nonionic surfactant PS-80 in different ratios or a dispersion of the commercial self-emulsifying drug-delivery formulation Sandimmun Neoral charged with DB. It is found that for the surfactant aggregates to show any notable interactions with mucin these must have a high positive charge density. Also presented are results from Ussing chamber experiments, which suggest that DB has a limited impact on the integrity and the barrier function of the intestinal epithelium.
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  • Resultat 1-3 av 3

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