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Protective effects of lupeol and mango extract against androgen induced oxidative stress in Swiss albino mice 被引量:6
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作者 Sahdeo Prasad Neetu Kalra Madhulika Singh Yogeshwer Shukla 《Asian Journal of Andrology》 SCIE CAS CSCD 2008年第2期313-318,共6页
Aim: To investigate antioxidant potential of lupeol/mango pulp extract (MPE) in testosterone induced oxidative stress in prostate of male Swiss albino mice. Methods: Oral treatment of lupeol (1 mg/animal) and M... Aim: To investigate antioxidant potential of lupeol/mango pulp extract (MPE) in testosterone induced oxidative stress in prostate of male Swiss albino mice. Methods: Oral treatment of lupeol (1 mg/animal) and MPE (1 mL [20% w/v]/ animal) was given separately to animals along with subcutaneous injection of testosterone (5 mg/kg body weight) consecutively for 15 days. At the end of the study period, the prostate was dissected out for the determination of reactive oxygen species (ROS) levels, lipid peroxidation and antioxidant enzymes status (catalase, superoxide dismutase, glutathione reductase, glutathione-S-transferase). Results: In testosterone treated animals, increased ROS resulted in depletion of antioxidant enzymes and increase in lipid peroxidation in mouse prostate. However, lupeol/MPE treatment resulted in a decrease in ROS levels with restoration in the levels of lipid peroxidation and antioxidant enzymes. Conclusion: The results of the present study demonstrate that lupeol/MPE are effective in combating oxidative stress-induced cellular injury of mouse prostate. Mango and its constituents, therefore, deserve study as a potential chemopreventive agent against prostate cancer. (Asian J Androl 2008 Mar; 10: 313-318) 展开更多
关键词 mango pulp extract LUPEOL TESTOSTERONE oxidative stress antioxidant enzymes prostate cancer
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基于不同提取溶剂和色谱分离模式的芒果浆代谢组学研究 被引量:1
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作者 张楠 王雪 +4 位作者 王珂雯 米璐 杨诗妮 徐雷 徐贞贞 《食品工业科技》 北大核心 2025年第12期10-19,共10页
本研究基于UHPLC-QTOF-MS代谢组学技术,开展了4种提取溶剂和2种色谱模式对芒果浆代谢组学分析的比较研究,旨在通过优化提取溶剂和色谱模式,提出一种优化的代谢组学分析策略。采用四种提取溶剂(纯水、0.1%乙酸水、50%甲醇水、0.1%乙酸50... 本研究基于UHPLC-QTOF-MS代谢组学技术,开展了4种提取溶剂和2种色谱模式对芒果浆代谢组学分析的比较研究,旨在通过优化提取溶剂和色谱模式,提出一种优化的代谢组学分析策略。采用四种提取溶剂(纯水、0.1%乙酸水、50%甲醇水、0.1%乙酸50%甲醇水,分别记为H_(2)O、H_(2)O+A、Me和Me+A组)及两种色谱模式(HILIC与RPLC)进行比较,结果表明:提取溶剂中添加0.1%乙酸可提高样品中MS1和MS2的采集数量及峰面积,特别在峰面积为10~7以上的高响应区间,且样品的可注释组分数量提高,H_(2)O+A组为H_(2)O组的1.39倍,Me+A组为Me组的1.15倍,同时,添加乙酸组的MS2谱图更加清晰,噪音干扰少;(H_(2)O+A)+HILIC和(Me+A)+RPLC模式表现出较强的互补性,与传统仅使用(Me+A)+RPLC相比,联用策略在芒果浆中共注释311种组分,覆盖率增加了近1倍、极性范围扩大了2.4倍。本研究提出的(H_(2)O+A)+HILIC和(Me+A)+RPLC联用分析策略,显著提高了样品中组分的覆盖率和注释率,为芒果浆等果蔬制品中组分解析提供了更加全面的分析方法。 展开更多
关键词 代谢组学 提取溶剂 色谱分离模式 芒果浆
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