A deletion of mitochondrial DNA in murine doxorubicin-induced cardiotoxicity
K Adachi, Y Fujiura, F Mayumi, A Nozuhara… - Biochemical and …, 1993 - Elsevier
K Adachi, Y Fujiura, F Mayumi, A Nozuhara, Y Sugiu, T Sakanashi, T Hidaka, H Toshima
Biochemical and biophysical research communications, 1993•ElsevierA deletion of about 4 kb has been determined in the mutated mitochondrial DNA (mtDNA) in
cardiomyocytes with chronic doxorubicin (DOX)-induced cardiotoxicity in mouse. The
incidence of the mtDNA deletion increased with the dosage and with the duration of the DOX
administration. Coenzyme Q10 administration prevented the mtDNA deletion and decreased
the thiobarbituric acid reactive substance content in the heart mitochondria, suggesting
some free radical involvement in this mtDNA deletion. This mtDNA deletion may be involved …
cardiomyocytes with chronic doxorubicin (DOX)-induced cardiotoxicity in mouse. The
incidence of the mtDNA deletion increased with the dosage and with the duration of the DOX
administration. Coenzyme Q10 administration prevented the mtDNA deletion and decreased
the thiobarbituric acid reactive substance content in the heart mitochondria, suggesting
some free radical involvement in this mtDNA deletion. This mtDNA deletion may be involved …
Abstract
A deletion of about 4 kb has been determined in the mutated mitochondrial DNA (mtDNA) in cardiomyocytes with chronic doxorubicin (DOX)-induced cardiotoxicity in mouse. The incidence of the mtDNA deletion increased with the dosage and with the duration of the DOX administration. Coenzyme Q10 administration prevented the mtDNA deletion and decreased the thiobarbituric acid reactive substance content in the heart mitochondria, suggesting some free radical involvement in this mtDNA deletion. This mtDNA deletion may be involved in cardiomyopathy, which is known to be dosage-dependently induced by DOX administration.
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