Oxidative phosphorylation and optical density of the rat liver and kidney mitochondria were studied under the effect of UHF and SHF electromagnetic fields of different power and duration of the action. It is established that a single action of these fields induces changes in the functional state of the mitochondria. The action by the UHF and SHF fields of 30W for 10 min increases the activity of respiration and phosphorylation in the liver and kidney mitochondria. The actions of the SHF electric field of 50 and 50W and UHF fields of 80W induce the splitting of oxidation phosphoryation, in the mitochondria. In this case there arise a considerable swelling of the mitochondria, which is evidenced by a decrease in their optic density.
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