Superoxide production is inversely related to complex I activity in inherited complex I deficiency
نویسندگان
چکیده
منابع مشابه
Mitochondrial complex I deficiency leads to increased production of superoxide radicals and induction of superoxide dismutase.
Mitochondria were isolated from skin fibroblast cultures derived from healthy individuals (controls) and from a group patients with complex I (NADH-CoQ reductase) deficiency of the mitochondrial respiratory chain. The complex I deficient patients included those with fatal infantile lactic acidosis (FILA), cardiomyopathy with cataracts (CC), hepatopathy with tubulopathy (HT), Leigh's disease (LD...
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Mitochondria use oxygen as the final acceptor of the respiratory chain, but its incomplete reduction can also produce reactive oxygen species (ROS), especially superoxide. Acute hypoxia produces a superoxide burst in different cell types, but the triggering mechanism is still unknown. Herein, we show that complex I is involved in this superoxide burst under acute hypoxia in endothelial cells. W...
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Preconditioning (PC) as a protective strategy against noxious insults can decline cell death and apoptosis. It has been approved that mitochondria play a key role in PC mechanism. The critical role of complex I (CI) in oxidative phosphorylation machinery and intracellular ROS production, particularly in the brain, accentuates its possible role in PC-induced neuroprotection. Here, differentiated...
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ژورنال
عنوان ژورنال: Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease
سال: 2007
ISSN: 0925-4439
DOI: 10.1016/j.bbadis.2006.12.009