The initial investigations concerning the influence of variable magnetic fields (MF) on transfer and oxygen consumption in isolated human cotyledon in vitro were performed. Ten dual closed perfusion of the human cotyledon were conducted in each group. The control group was not exposed to magnetic fields. In studied groups cotyledons were exposed to magnetic field: in the group B1 (B = 2 mT, f = 50 Hz), and in the group B2 (B = 5 mT, f = 50 Hz) for 180 min. Obtained results may suggest that variable magnetic field (B = 5 mT, f = 50 Hz) cause decrease of oxygen consumption in human placenta in 120 and 150 min of experiment.
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