Mitochondrial oxidative stress and mitochondrial DNA

Dongchon Kang, Naotaka Hamasaki

Research output: Contribution to journalReview article

90 Citations (Scopus)

Abstract

Mitochondria produce reactive oxygen species (ROS) under physiological conditions in association with activity of the respiratory chain in aerobic ATP production. The production of ROS is essentially a function of O2 consumption. Hence, increased mitochondrial activity per se can be an oxidative stress to cells. Furthermore, production of ROS is markedly enhanced in many pathological conditions in which the respiratory chain is impaired. Because mitochondrial DNA, which is essential for execution of normal oxidative phosphorylation, is located in proximity to the ROS-generating respiratory chain, it is more oxidatively damaged than is nuclear DNA. Cumulative damage of mitochondrial DNA is implicated in the aging process and in the progression of such common diseases as diabetes, cancer, and heart failure.

Original languageEnglish
Pages (from-to)1281-1288
Number of pages8
JournalClinical Chemistry and Laboratory Medicine
Volume41
Issue number10
DOIs
Publication statusPublished - Oct 27 2003

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Oxidative stress
Mitochondrial DNA
Reactive Oxygen Species
Oxidative Stress
Electron Transport
Mitochondria
Oxidative Phosphorylation
Medical problems
Heart Failure
Adenosine Triphosphate
Aging of materials
Association reactions
DNA
Neoplasms

All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry
  • Biochemistry, medical

Cite this

Mitochondrial oxidative stress and mitochondrial DNA. / Kang, Dongchon; Hamasaki, Naotaka.

In: Clinical Chemistry and Laboratory Medicine, Vol. 41, No. 10, 27.10.2003, p. 1281-1288.

Research output: Contribution to journalReview article

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