Results 211 to 220 of about 35,390 (246)

Mutations of the Electron Transport Chain Affect Lifespan and ROS Levels in C. elegans. [PDF]

Antioxidants (Basel)
Ősz F, Nazir A, Takács-Vellai K, Farkas Z.   +3 more
europepmc   +1 more source

An envelope stress response governs long-chain fatty acid metabolism via a small RNA to maintain redox homeostasis inEscherichia coli

Shrivastava M, Kaur M, Luke LM, Kakkar RA, Roy D, Singla S, Sharma V, Sharma G, Chaba R.   +8 more
europepmc   +1 more source

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Ubiquinone in the retina

Vision Research, 1968
Abstract Microspectrophotometric examination of retinal cells shows an absorbance maximum at 282 nm and a shoulder at 275 nm, the latter possibly due to ubiquinone. Extraction of bovine retinal cell outer segments and retinal cells free of outer segments, however, failed to reveal any ubiquinone; an upper limit of 0.6 n mole ubiquinone per eye being ...
G. Entine, Paul A. Liebman, B.T. Storey
openaire   +3 more sources

Rush desensitization with ubiquinone

Allergy, 1997
UBIQUINONE
Schiavino, Domenico, Nucera, Eleonora, Zoppi, Adriana, Misuraca, C, Patriarca, Giampiero   +4 more
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Kinetics of ubiquinone reduction by the resolved succinate: Ubiquinone reductase

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1982
A significant lag in the thenoyltrifluoroacetone (TTFA)-sensitive succinate: ubiquinone reductase activity was observed when a ubiquinone-deficient resolved preparation of the enzyme was assayed in the presence of exogenous ubiquinone-2 (Q2) and 2,6-dichlorophenolindophenol.
Vera G. Grivennikova, Andrei D. Vinogradov   +1 more
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Regulation of ubiquinone metabolism

Free Radical Biology and Medicine, 2000
Interest in ubiquinone (UQ) has increased during recent years, mainly because of its antioxidant function and its use as a dietary supplement. However, our knowledge of the biosynthesis, catabolism, and regulation of this lipid in mammalian tissues is quite limited.
Gustav Dallner, Pavel J. Sindelar, Pavel J. Sindelar   +2 more
openaire   +3 more sources

Biosynthesis of Ubiquinone

1983
Publisher Summary This chapter discusses the biosynthesis of ubiquinone. Ubiquinone serves as a lipid-soluble electron carrier in the membrane-bound electron transport chains of both prokaryotes and eukaryotes. Eighty-five percent of cell ubiquinon is located in the mitochondria or equivalent membrane system.
Robert E. Olson, Harry Rudney
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The Chemistry of Ubiquinone

1967
Publisher Summary This chapter describes the chemical knowledge of the ubiquinones. It discusses new results from studies of the biosynthesis of ubiquinone, some new data concerning the mass spectrometry of the ubiquinones. Mass spectrometry has proved to be extremely useful in this research. A study of the mass spectra of a series of ubiquinones and
Olsen Rk, Palle Friis, Karl Folkers, Daves Gd   +3 more
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On the biosynthesis of ubiquinone (50)

Archives of Biochemistry and Biophysics, 1959
Abstract It is shown that radioactive mevalonic acid is utilized for the synthesis of ubiquinone in the rat. 2,3-Dimethoxy-5-methyl-1,4-benzoquinone and dl -α-tocopherol are not precursors of the quinoid ring system. With progressive vitamin A depletion, the incorporation of mevalonic acid into ubiquinone of rat liver is enhanced.
U. Gloor, O. Wiss
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Ubiquinones and Ubichromenols in the Rat

Nature, 1960
UBIQUINONE, a naturally occurring quinone of considerable biological interest, was first isolated by Morton et al. 1, who found it in many kinds of animal tissue. Lester et al. 2 have shown that a series of such quinones exist, and have isolated, from different organisms, five compounds of general formula :
E. E. Edwin, A. T. Diplock, J. Green, S. Marcinkiewicz, J. Bunyan   +4 more
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