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首页> 外文期刊>The British Journal of Nutrition >Effects of dietary lipid, vitamins and minerals on total amounts and redox status of glutathione and ubiquinone in tissues of Atlantic salmon (Salmo salar): a multivariate approach.
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Effects of dietary lipid, vitamins and minerals on total amounts and redox status of glutathione and ubiquinone in tissues of Atlantic salmon (Salmo salar): a multivariate approach.

机译：饮食脂质，维生素和矿物质对大西洋鲑鱼（Salmo salar）组织中谷胱甘肽和泛醌总量和氧化还原状态的影响：多变量方法。

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摘要

The hypothesis of the present study was that Atlantic salmon (Salmo salar) would respond to large variations in supplementation of dietary pro- and antioxidants, and marine lipid, with adjustment of the endogenously synthesised antioxidants, glutathione (GSH) and ubiquinone (UQ). An experiment with 27-3 reduced factorial design (the number of cases reduced systematically from 27 (full design) to 24 (reduced design)) was conducted, where vitamins, minerals and lipid were supplemented in the diet at high and low levels. For the vitamins and minerals the high levels were chosen to be just below anticipated toxic levels and the low levels were just above the requirement (vitamin C, 30 and 1000 mg/kg; vitamin E, 70 and 430 mg/kg; Fe, 70 and 1200 mg/kg; Cu, 8 and 110 mg/kg; Mn, 12 and 200 mg/kg). For astaxanthin, the dietary levels were 10 and 50 mg/kg and for lipid, 150 and 330 g/kg. The experiment was started with post-smolts (148 (SD 17 g)) and lasted for 5 months. The only effect on GSH was a minor increase (<10%) in total concentration in the liver in response to high dietary lipid. GSH redox state was not affected. UQ responded to dietary lipid, astaxanthin and vitamin E, both with regard to total concentration and redox state. Except for an effect of Fe on plasma GSH, the trace elements and vitamin C had no effect on tissue levels and oxidation state of GSH and UQ. This shows that the endogenous redox state is quite robust with regard to variation of dietary pro- and antioxidants in Atlantic salmon.
机译：本研究的假设是，大西洋鲑（Salmo salar）将通过调整内源性合成抗氧化剂，谷胱甘肽（GSH）和泛醌（UQ）来响应饮食中前抗氧化剂和海洋脂质补充的巨大变化。进行了一项27-3减少析因设计（将病例数从27（完全设计）减少到24（简化设计）的实验）的实验，其中高，低水平向饮食中添加了维生素，矿物质和脂质。对于维生素和矿物质，选择的高含量应略低于预期的毒性水平，而低含量则应高于要求的水平（维生素C，30和1000 mg / kg;维生素E，70和430 mg / kg;铁，70 1200毫克/千克;铜8和110毫克/千克;锰12和200毫克/千克）。对于虾青素，饮食水平为10和50 mg / kg，对于脂质，饮食水平为150和330 g / kg。实验始于后mol（148（SD 17 g）），并持续了5个月。对GSH的唯一作用是对高饮食脂质的肝脏中总浓度的轻微增加（<10％）。 GSH氧化还原状态不受影响。在总浓度和氧化还原状态方面，UQ对膳食脂质，虾青素和维生素E都有反应。除了铁对血浆GSH的影响外，微量元素和维生素C对GSH和UQ的组织水平和氧化态没有影响。这表明，就大西洋鲑鱼的饮食前和抗氧化剂的变化而言，内源性氧化还原状态非常稳定。

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