The state of the molecular electron carriers of the cell energy system at early periods following irradiation

: The content of non-heme iron-sulfur proteins and free radicals in the liver, cardiac muscle, and brain was studied during the period from 10 min to 7 days following X-irradiation with doses of 11.0, 7.5, and 4.5 Gy. Ionizing radiation caused substantial changes in the function of electron-transport chains of mitochondria. The change rating was a function of dose while their character depended, in addition, upon the structural and functional characteristics of the organ.