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首页> 外文期刊>Reproductive toxicology >Vitamin A supplementation to pregnant and breastfeeding female rats induces oxidative stress in the neonatal lung.
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Vitamin A supplementation to pregnant and breastfeeding female rats induces oxidative stress in the neonatal lung.

机译:对怀孕和母乳喂养的雌性大鼠补充维生素A会在新生儿肺中诱发氧化应激。

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摘要

Vitamin A is an essential micronutrient that regulates many biological processes through modulation of retinoic acid receptor-responsive genes. Vitamin A acts as a systemic antioxidant, participating in the modulation of diverse redox mechanisms involved in physiological and pathological processes. Different studies, however, observed that vitamin A and other retinoids may induce pro-oxidant/deleterious actions under certain conditions, leading to impairment of brain and lung function. Here, we studied the effect of vitamin A treatment at oral doses of 100 IU/kg, 200 IU/kg, and 300 IU/kg to female rats (Rattus norvegicus) during pregnancy and lactation on oxidative parameters of lungs from the offspring vitamin A supplementation induced increases in lipoperoxidation, protein carbonyl, activities of the antioxidant enzymes superoxide dismutase and catalase (200 IU/kg, and 300 IU/kg), and decreased sulphydryl protein (500 IU/kg) content in the neonatal lung.
机译:维生素A是必需的微量营养素,通过调节视黄酸受体响应基因来调节许多生物过程。维生素A作为一种系统性抗氧化剂,参与调节涉及生理和病理过程的多种氧化还原机制。然而,不同的研究发现,维生素A和其他类维生素A可能在某些条件下诱导促氧化剂/有害作用,导致脑和肺功能受损。在这里,我们研究了在怀孕和哺乳期对雌性大鼠(Rattus norvegicus)口服100 IU / kg,200 IU / kg和300 IU / kg维生素A的治疗对后代维生素A肺部氧化参数的影响补充引起新生儿肺中脂过氧化,蛋白羰基,抗氧化酶超氧化物歧化酶和过氧化氢酶的活性增加(200 IU / kg和300 IU / kg),硫代蛋白(500 IU / kg)含量降低。

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