Journal
MITOCHONDRION
Volume 6, Issue 1, Pages 43-47Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mito.2005.12.001
Keywords
mtDNA; mitochondria; radiation; calcium; permeability transition
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Recently, we demonstrated that the release of mtDNA fragments from mitochondria occurs as a result of the opening of a non-specific pore in the inner mitochondrial membrane. Here, we show that irradiation of mice stimulates the appearance of mtDNA fragments in the cytosolic fractions of the brain. The fragments of mtDNA were found as early as 1 h after irradiation, when no observable alteration of mitochondrial functioning occurred. The involvement of mitochondrial permeability transition in this process is discussed. (c) 2006 Elsevier B.V. and Mitochondria Research Society. All rights reserved.
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