| 词汇 | niacin |
| 释义 | niacin noun[ U ] chemistry, biology specializeduk /ˈnaɪə.sɪn/ us /ˈnaɪə.sɪn/ one of the vitamin B complex found in foods such as wheat, beef, chicken, and milk, important for producing energy from food and for keeping the digestion and nervous system healthy烟酸（在小麦、牛肉、鸡肉和牛奶等食品中含有的一种复合维生素B，对体内能量转化和保持消化、神经系统健康有着重要作用） Vitamins & minerals ascorbic acid B vitamin bioflavonoid biotin carotene folic acid multivitamin Omega-3 retinol riboflavin vitamin vitamin A vitamin B1 vitamin B12 vitamin B complex vitamin C vitamin D vitamin E vitamin H vitamin K Examples of niacinniacin All strains were analysed by standard biochemical tests (niacin and nitrate). Cholesterol and stroke intima media thickness associated with colestipol/niacin therapy. These included riboflavin, niacin and folic acid. Colesevelam is one of the bile-acid sequestrants, which along with niacin and the statins, are the three main types of cholesterol-lowering agents. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some of these symptoms are generally related to niacin's role as the rate limiting cofactor in the histidine decarboxylase enzyme which converts l-histidine into histamine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As early as 1755, pellagra was recognized by doctors as being a niacin deficiency disease. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a combination of clofibrate and niacin, linked together by an ester bond. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These conditions convert corn's bound niacin to free niacin, making it available for absorption into the body, thus preventing pellagra. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Common psychiatric symptoms of niacin deficiency include irritability, poor concentration, anxiety, fatigue, restlessness, apathy, and depression. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Daily dose of 1 g niacin shows significant lipid modifying properties and reach the plateau using 2 grams. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The reason given is that niacin at effective intakes of 15003000 mg/day can also potentially have severe adverse effects. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. High dose niacin has since become a treatment option for individuals with high blood cholesterol and related blood lipid abnormalities. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. While niacin is present in corn and other grains, the bioavailability of the nutrient is much less than it is in protein-rich sources. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Although pellagra can still be seen in developing countries, fortification of food with niacin played a huge role in eliminating the prevalence of the disease. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The pyridine ring occurs in many important compounds, including azines and the vitamins niacin and pyridoxal. 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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