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亚麻籽木脂素对青春期雌性大鼠乳腺发育及相关内分泌的影响 被引量:11

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摘要 亚麻籽木脂素(SDG)为植物雌激素中的一种,具有雌激素样和抗雌激素样生物活性。选用24只雌性青春期大鼠,随机分成3组,即对照组(基础日粮)、试验组Ⅰ(基础日粮中添加SDG)、试验组Ⅱ(基础日粮中添加抗生素和SDG),采用石蜡切片技术、高效液相色谱、放射免疫分析等方法,探讨SDG及其动物木脂素对乳腺发育的作用机制及对相关激素的影响。结果:试验组Ⅰ大鼠的乳腺形态学发育水平,乳腺组织中DNA、RNA含量和RNA/DNA均显著高于试验组Ⅱ和对照组(P<0.05)。试验组Ⅰ血清和乳腺中SDG、肠二醇(END)、肠内脂(ENL)含量、17β-雌二醇(17β-E2)和孕酮(P)浓度均较对照组显著增加(P<0.01);上列指标高于试验组Ⅱ,而后者高于对照组。试验表明:添喂抗生素抑制肠道微生物降低动物木脂素产生;亚麻籽木脂素和其主要代谢产物END、ENL可能分别通过直接作用与神经内分泌途径促进大鼠的乳腺发育。
出处 《畜牧与兽医》 北大核心 2009年第1期79-82,共4页 Animal Husbandry & Veterinary Medicine
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参考文献9

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二级参考文献34

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