An in vitro assay with mammalian phagocytes was adapted for experiments under microgravity. It is based on the oxidation of luminol for the detection of reactive oxygen species (ROS) and is characterised by uncomplicated handling and easy standardisation. The reliability of the test system was documented by the effects of several immunomodulating and immunotoxic substances. Experiments under simulated weightlessness, generated by clinostating and magnetic levitation, indicate that phagocytotic cells respond to the loss of gravity by reduced ROS production, whereas resting cells are activated.
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An in vitro assay with mammalian phagocytes was adapted for experiments under microgravity. It is based on the oxidation of luminol for the detection of reactive oxygen species (ROS) and is characterised by uncomplicated handling and easy standardisation. The reliability of the test system was documented by the effects of several immunomodulating and immunotoxic substances. Experiments under simulated weightlessness, generated by clinostating and magnetic levitation, indicate that phagocytotic c...
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