Weak A.C. magnetic field effects: changes in cell sodium pump activity following whole animal exposure.
A biological system consisting of a cell membrane enzyme (Na+-K+)-ATPase responded to exposure to a weak A.C. magnetic field. Analysis of Na+ pump activity in normal mouse (A/J) tissue--(a) Kidney cortex and diaphragm after 11 days of exposure to a magnetic field of 55-60 gauss, 60Hz showed a significant reduction as did (b) liver tissue but at day 17 the levels had returned to the control values. Neuroblastoma cells (C1300) transplanted to A/J mice also showed a reduction in the (Na+-K+)-ATPase activity but this persisted at day 17.
D000251:Adenosine Triphosphatases / Q000378:metabolism; D000818:Animals; D001693:Biological Transport, Active; D002462:Cell Membrane / Q000201:enzymology; D004574:Electromagnetic Fields; D055590:Electromagnetic Phenomena; D005260:Female; D007668:Kidney / Q000378:metabolism; D008099:Liver / Q000201:enzymology; D051379:Mice; D008805:Mice, Inbred A; D009132:Muscles / Q000378:metabolism; D009447:Neuroblastoma / Q000648:ultrastructure; D010101:Oxygen Consumption / Q000187:drug effects; D012964:Sodium / Q000378:metabolism*; D013997:Time Factors
D012964:Sodium; D000251:Adenosine Triphosphatases