• Eur J Anaesthesiol · Nov 2016

    Clinical concentrations of morphine are cytotoxic on proliferating human fibroblasts in vitro.

    • José Aguirre, Alain Borgeat, Melanie Hasler, Philipp Bühler, and John M Bonvini.
    • From the Department of Anaesthesiology, Balgrist University Hospital Zurich (JA, AB), Institute of Physiology, Zurich Centre for Integrative Human Physiology, University of Zurich (MH, PB), and Institute of Anaesthesiology, University Hospital Zurich, Zurich, Switzerland (JMB).
    • Eur J Anaesthesiol. 2016 Nov 1; 33 (11): 832-839.

    BackgroundMorphine and other opioids are routinely used systemically and as wound infusions in the postoperative period. Their effect on wound and fracture healing remains unclear.ObjectiveThe primary outcome was to assess the potential cytotoxicity of clinically relevant concentrations of morphine on human fibroblasts.DesignLaboratory in-vitro study.SettingInstitute of Physiology, Zurich Center for Integrative Human Physiology, University of Zurich.MaterialsMonolayers of human fibroblasts.Intervention(S)Exposure of human fibroblast monolayers to several concentrations of morphine, for different periods of time, with and without an artificially induced inflammatory process.Main Outcome MeasuresCell count, cell viability, cell proliferation and apoptosis.ResultsA concentration, time and exposure-dependent cytotoxic effect of morphine-mediated apoptosis was observed. Simulated inflammatory conditions seemed to lessen toxic effects.ConclusionCytotoxic effects of morphine are exposure, time and concentration dependent. Simulating aspects of inflammatory conditions seems to increase resistance to morphine cytotoxicity especially in the presence of higher concentration and longer exposure times.

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