| 词汇 | retinol |
| 释义 | retinol noun[ U ] chemistry, biology specializeduk /ˈret.ɪ.nɒl/ us /ˈret̬.ə.nɑːl/ → vitamin A维生素 A;视黄醇 Vitamins & minerals ascorbic acid B vitamin bioflavonoid biotin carotene folic acid multivitamin niacin Omega-3 riboflavin vitamin vitamin A vitamin B1 vitamin B12 vitamin B complex vitamin C vitamin D vitamin E vitamin H vitamin K Examples of retinolretinol Immunohistochemistry of vacuoles occurring in rat hepatocytes after retinol administration. Imaging of intrinsic indicators within tissue, such as nicotinamide adenine dinucleotide, retinol, indoleamines, and collagen provided crucial physiological information. Upon activation, the droplets are lost and retinoid is released as retinol, a transport form in plasma. Within the cytoplasm, retinol is converted to retinal by retinol dehydrogenase followed by a further dehydrogenation to retinoic acid by retinal dehydrogenase. At 45 min (curve 10), the peak slightly decreased, showing that retinol slowly leaves the outer segment. Lipocalins include the homologues retinol-binding protein with an 8-stranded b-barrel, and retinoic acid-binding protein with a 10-stranded b-barrel. Tumor formation in mice with somatic inactivation of the retinoblastoma gene in interphotoreceptor retinol binding protein-expressing cells. As for the subsequent stages of photolysis that lead to the generation of all-trans retinol in intact cells, they need a special experimental and theoretical analysis. Retinol was released as part of this denaturation and it has been speculated whether such a structural transition has a functional role in ligand binding and release (see section 16). It may, however, be consumed indirectly, in the form of carotenoids such as beta carotene, which can be cleaved to form two retinol molecules. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Members of this enzyme family metabolize a wide variety of substrates, including ethanol, retinol, other aliphatic alcohols, hydroxysteroids, and lipid peroxidation products. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Assessment of retinol-binding protein is used to determine visceral protein mass in health-related nutritional studies. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Carotenoid bioavailability ranges between 1/5 to 1/10 of retinol's. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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