To the Editor: Alveolar echinoco-ccosis (AE) caused by Echinococcus multilocularis is one of the most important emerging zoonosis in Europe. The fatality rate is >90% in untreated patients (1). In Europe, the distribution range of the zoonotic tapeworm E. multilocularis has expanded over the last few decades, and the parasite attracts increasing awareness as a public health issue (2–5). In 2003...

A NADH dehydrogenase was isolated from an inner membrane-enriched fraction of beetroot mitochondria (Beta vulgaris L.) by solubilization with sodium deoxycholate and purified using gel filtration and affinity chromatography. The NADH dehydrogenase preparation contained a minor ATPase contamination. Beetroot mitochondria were chosen as the isolation material for purifying the enzymes responsible...

Diphenyleneiodonium (DPI) inhibits the mitochondrial NADH-ubiquinone oxidoreductase (Complex I) on the substrate side of the Fe-S clusters. In the inhibited NADH-supplemented state all of the Fe-S clusters are oxidized, whereas the reduced minus oxidized difference spectrum of the protein-bound FMN can be visualized. It is characterized by troughs at 370 and 450 nm and a small increase of absor...

Laboratoire de Chimie Biologique I, Universitri Henri PoincarC, FacultC des Sciences, BP 239, 54506 Vandoeuvre-I&-Nancy cedex, France Previous results indicated that molar growth yields are reduced when Clostridium cellulolyticum is cultured in media containing cellobiose concentrations greater than 1 g I-'. Continuous cultures were examined to determine the physiological basis of these poor gr...

A significant consequence of ischemia/reperfusion (I/R) is mitochondrial respiratory dysfunction, leading to energetic deficits and cellular toxicity from reactive oxygen species (ROS). Mammalian complex I, a NADH-quinone oxidoreductase enzyme, is a multiple subunit enzyme that oxidizes NADH and pumps protons across the inner membrane. Damage to complex I leads to superoxide production which fu...

Oxidative stress may play an important role in the pathogenesis of keratoconus (KC). Mitochondrial DNA (mtDNA) is involved in mitochondrial function, and the mtDNA content, integrity, and transcript level may affect the generation of reactive oxygen species (ROS) and be involved in the pathogenesis of KC. We designed a case-control study to research the relationship between KC and mtDNA integri...

1. A procedure is described for separating from preparations of NADH-ubiquinone reductase (Complex I), an NADH dehydrogenase which retains full activity with ferricyanide as acceptor, but which is devoid of rotenone-sensitive NADH-ubiquinone reductase activity. About 50 to 90% of the original NADH-ubiquinone reductase activity is restored by recombination with purified phospholipids in the pres...

An open reading frame homologous with genes of non-proton-pumping NADH dehydrogenases was identified in the genome of Neurospora crassa. The 57 kDa NADH:ubiquinone oxidoreductase acts as internal (alternative) respiratory NADH dehydrogenase (NDI1) in the fungal mitochondria. The precursor polypeptide includes a pre-sequence of 31 amino acids, and the mature enzyme comprises one FAD molecule as ...

We studied the effects of mexidol (3-oxy-6-methyl-2-ethylpiridine succinate) on antioxidant glutathione system in rat brain mitochondria experimental Parkinson’s disease induced by rotenone administration. Wistar rats were divided into following groups 6 each: I - intact (control); II (3 mg/kg per day) was injected subcutaneously for 2 weeks; III after intoxication, (50 intraperitoneally weeks....

Background Fluorescence lifetime of NADH had been proposed to use as an intrinsic biomarker for monitoring cellular metabolism. In our pervious studies, we have demonstrated that NADH lifetime of hMSCs increase gradually with time of osteogenic differentiation. In this study, we performed NADH lifetime measurement of hMSCs from a different donor and studied the association with several metaboli...