Half-life of ubiquinone-9 in rat tissues
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چکیده
منابع مشابه
Half-life of ubiquinone and plastoquinone in spinach cells.
The half-life of plastoquinone (PQ), ubiquinone-9 (UQ-9) and ubiquinone-10 (UQ-10) in spinach tissue was determined. This was achieved by monitoring the decay of radioactivity incorporated into these lipids from a labeled precursor. The half-life of PQ was 15 h while for UQ-9 and UQ-10 it was longer, i.e. 30 h. The values of half-lives of PQ and UQ suggest a high rate of turnover of these lipid...
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15 صفحه اولDetermination of ubiquinone-9 and 10 levels in rat tissues and blood by high-performance liquid chromatography with ultraviolet detection.
A high-performance liquid chromatographic (HPLC) method is presented for the simultaneous detection of ubiquinone-9 and 10 in rat tissues such as blood, myocardium, and muscle. After liquid-liquid extraction, the ubiquinones are subsequently analyzed by HPLC with ultraviolet (UV) detection at their maximum absorbance (275 nm). Reference calibration curves in ethanol are used to determine tissul...
متن کاملThe ubiquinone content of animal tissues. A survey of the occurrence of ubiquinone in vertebrates.
1. A method was developed for the analysis of ubiquinone in animal tissues and the recovery of added ubiquinone tested in liver of the rat, Crocodylus porosus and Squalus acanthias. 2. The ubiquinone content of heart, liver and gut (or breast muscle in birds) was measured in 67 different animal species, selected to be representative of all the vertebrate classes. 3. The suggestion is advanced t...
متن کاملBiosynthesis of ubiquinone in the rat.
Ruegg et al. (1959) and Linn et al. (1959) have reported that rat liver contains two ubiquinones with C46 and C50 side chains (coenzymes Q, and Qlo respectively), the former predominating. Experiments in this Laboratory confirmed the presence of both these ubiquinones in our stock-colony rats and also showed the presence of traces of ubiquinones with side chains containing 40 and 35 carbon atom...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1992
ISSN: 0014-5793
DOI: 10.1016/0014-5793(92)81425-l